Repair and Diagnosis (Single Page)
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Common Specs & Procedures
DTC Index
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Wiring Diagrams- System Wiring Diagrams
- Air Conditioning
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- Using lemon2025'S System Wiring Diagrams
- System Wiring Diagrams
- Accessories & Equipment
- Anti-Theft Systems
- Anti-Theft Systems
- Power Door Locks & Keyless Entry System
- Description & Operation
- Programming
- Trouble Shooting
- Component Tests
- System Tests
- Removal & Installation
- Wiring Diagrams
- Body Interior
- Body Control Computer - Introduction
- Body Control Computer - Tests
- Vehicle Communication System
- System Tests
- Notes
- Identifying Vehicle Communication Problems
- Bus (+) & Bus (-) Shorted Together
- Bus Bias Level Too Low Or Too High (CHEROKEE)
- Bus Bias Level Too Low Or Too High (Wrangler)
- Bus (+) &/Or Bus (-) Open
- Scan Tool Blank Screen
- No Bus Bias (CHEROKEE)
- No Bus Bias (Wrangler)
- No Response From Air Bag Control Module (CHEROKEE)
- No Response From Air Bag Control Module (Wrangler)
- No Response From Compass Mini-Trip Computer (CMTC)
- No Response From Instrument Cluster
- No Response From Powertrain Control Module
- No Response From Remote Keyless Entry (RKE)
- No Response From Smart Key Immobilizer Module (Skim)
- No Response From Transmission Control Module (TCM)
- No Termination
- Not Receiving Bus Messages Correctly
- Bus Short To 5 Volts
- Bus Short To Battery
- Bus Short To Ground
- Verification Test: VER-2A
- System Tests
- Communication Devices
- Cruise Control Systems
- Exterior Lights
- Gauges & Instrument Panels
- Instrument Panel
- Description
- System Tests
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Overhead Consoles
- Instrument Panel
- Headlights
- Heated Glass/Defoggers
- Interior/Illumination Lights
- Power Mirrors
- Seats
- Steering Column Switches
- Warning Systems
- Window Motors & Regulators
- Wiper/Washer Systems
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
- Anti-Theft Systems
- Body & Frame
- Body, Cab Control Systems
- Body Control Computer - Introduction
- Body Control Computer - Tests
- Vehicle Communication System
- System Tests
- Notes
- Identifying Vehicle Communication Problems
- Bus (+) & Bus (-) Shorted Together
- Bus Bias Level Too Low Or Too High (CHEROKEE)
- Bus Bias Level Too Low Or Too High (Wrangler)
- Bus (+) &/Or Bus (-) Open
- Scan Tool Blank Screen
- No Bus Bias (CHEROKEE)
- No Bus Bias (Wrangler)
- No Response From Air Bag Control Module (CHEROKEE)
- No Response From Air Bag Control Module (Wrangler)
- No Response From Compass Mini-Trip Computer (CMTC)
- No Response From Instrument Cluster
- No Response From Powertrain Control Module
- No Response From Remote Keyless Entry (RKE)
- No Response From Smart Key Immobilizer Module (Skim)
- No Response From Transmission Control Module (TCM)
- No Termination
- Not Receiving Bus Messages Correctly
- Bus Short To 5 Volts
- Bus Short To Battery
- Bus Short To Ground
- Verification Test: VER-2A
- System Tests
- Door Locks
- Anti-Theft Systems
- Power Door Locks & Keyless Entry System
- Description & Operation
- Programming
- Trouble Shooting
- Component Tests
- System Tests
- Removal & Installation
- Wiring Diagrams
- Power Mirrors
- Seats
- Power Windows
- Body, Cab Control Systems
- Brakes
- Anti-Lock Brakes
- Anti-Lock Brake System - TEVES Mark 20
- Description
- Operation
- Bleeding Brake System
- Diagnosis & Testing
- Pre-Diagnostic Inspection
- Connector Identification
- Diagnostic Tests
- Notes
- Test 1A: Checking System For DTCS
- Test 2A: Left Front Sensor Circuit Failure
- Test 3A: Left Front Sensor Signal Failure
- Test 4A: Right Front Sensor Circuit Failure
- Test 5A: Right Front Sensor Signal Failure
- Test 6A: Left Rear Sensor Circuit Failure
- Test 7A: Left Rear Sensor Signal Failure
- Test 8A: Right Rear Sensor Circuit Failure
- Test 9A: Right Rear Sensor Signal Failure
- Test 10A: Pump Motor Circuit Not Working Properly
- Test 11A: Cab Block Feed Failure
- Test 12A: Controller Failure
- Test 13A: System UNDERVOLTAGE
- Test 14A: System OVERVOLTAGE
- Test 15A: "G" Switch Sensor Not Processable
- Test 16A: BRAKELIGHT Switch
- Test 17A: Abs Amber Warning Light Problem (CHEROKEE)
- Test 17B: Abs Amber Warning Light Problem (CHEROKEE)
- Test 18A: Abs Amber Warning Light Problem (Grand CHEROKEE)
- Test 19A: Red Brake Warning Light Problem (CHEROKEE)
- Test 20A: Red Brake Warning Light Problem (Grand CHEROKEE)
- Test 21A: No Response
- Test 21B: No Response
- Test VER-1A: Verification Test
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagrams
- Anti-Lock Brake System - Wiring
- Anti-Lock Brake System - TEVES Mark 20
- Mechanical - Hydraulic
- Disc Brakes & Drum Brakes
- Description & Operation
- Bleeding Brake System
- Adjustments
- Testing
- Removal & Installation
- Overhaul
- Disc Brake Specifications
- Drum Brake Specifications
- Torque Specifications
- Disc Brakes & Drum Brakes
- Parking Brake System
- Disc Brakes & Drum Brakes
- Description & Operation
- Bleeding Brake System
- Adjustments
- Testing
- Removal & Installation
- Overhaul
- Disc Brake Specifications
- Drum Brake Specifications
- Torque Specifications
- Disc Brakes & Drum Brakes
- Traction Control
- Anti-Lock Brake System - TEVES Mark 20
- Description
- Operation
- Bleeding Brake System
- Diagnosis & Testing
- Pre-Diagnostic Inspection
- Connector Identification
- Diagnostic Tests
- Notes
- Test 1A: Checking System For DTCS
- Test 2A: Left Front Sensor Circuit Failure
- Test 3A: Left Front Sensor Signal Failure
- Test 4A: Right Front Sensor Circuit Failure
- Test 5A: Right Front Sensor Signal Failure
- Test 6A: Left Rear Sensor Circuit Failure
- Test 7A: Left Rear Sensor Signal Failure
- Test 8A: Right Rear Sensor Circuit Failure
- Test 9A: Right Rear Sensor Signal Failure
- Test 10A: Pump Motor Circuit Not Working Properly
- Test 11A: Cab Block Feed Failure
- Test 12A: Controller Failure
- Test 13A: System UNDERVOLTAGE
- Test 14A: System OVERVOLTAGE
- Test 15A: "G" Switch Sensor Not Processable
- Test 16A: BRAKELIGHT Switch
- Test 17A: Abs Amber Warning Light Problem (CHEROKEE)
- Test 17B: Abs Amber Warning Light Problem (CHEROKEE)
- Test 18A: Abs Amber Warning Light Problem (Grand CHEROKEE)
- Test 19A: Red Brake Warning Light Problem (CHEROKEE)
- Test 20A: Red Brake Warning Light Problem (Grand CHEROKEE)
- Test 21A: No Response
- Test 21B: No Response
- Test VER-1A: Verification Test
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagrams
- Anti-Lock Brake System - Wiring
- Anti-Lock Brake System - TEVES Mark 20
- Anti-Lock Brakes
- Drivelines & Axles
- Differentials & Drive Axles
- Axle Shafts - Front
- Differentials - TRAC-LOK
- Drive Axle - 7 1/8" To 8 9/10" Ring Gears
- Driveshaft & Universal Joints
- Differentials & Drive Axles
- Electrical
- Charging Systems
- Charging System - Generators & Regulators
- Model Identification
- Description
- Operation
- Adjustments
- Trouble Shooting
- Self-Diagnostic System
- Self-Diagnostic Tests
- Notes
- DTC Test: Checking System For Diagnostic Trouble Codes
- DTC P0622: Generator Field Not Switching Properly
- DTC P1492: Battery Temp Sensor Voltage Too High
- DTC P1493: Battery Temp Sensor Voltage Too Low
- DTC P1594: Charging System Voltage Too High
- DTC P1682: Charging System Voltage Too Low
- Test Ch-1A: Charging System No Code Test
- Test VER-2A: Road Test Verification
- Test VER-3A: Charging Verification
- Test VER-5A: Road Test Verification
- On-Vehicle Testing
- Bench Testing
- Torque Specifications
- Wiring Diagrams
- Charging System - Generators & Regulators
- Component Locations
- Fuses & Circuit Breakers
- Gauges
- Instrument Panel
- Description
- System Tests
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Overhead Consoles
- Instrument Panel
- Starter
- Starting System
- Description
- Trouble Shooting
- On-Vehicle Testing
- Bench Testing
- Removal & Installation
- Overhaul
- Starter Specifications
- Torque Specifications
- Wiring Diagrams
- Starting System
- Wiring Diagrams
- System Wiring Diagrams
- Air Conditioning
- Anti-Lock Brakes
- Anti-Theft
- Computer Data Lines
- Cooling Fan
- Cruise Control
- Defoggers
- Engine Performance
- Exterior Lights
- Ground Distribution
- Headlights
- Horn
- Instrument Cluster
- Interior Lights
- Power Distribution
- Power Door Locks
- Power Mirrors
- Power Seats
- Power Windows
- Radio
- Shift Interlocks
- Starting/Charging
- Supplemental Restraints
- Transmission
- Warning Systems
- Wiper/Washer
- Using lemon2025'S System Wiring Diagrams
- System Wiring Diagrams
- Charging Systems
- Engine Mechanical
- Accessory Drive Belts
- Auxiliary Emission Control Systems
- Emission Control System Visual Inspection Procedures - General Information
- * Please Read This First *
- Emission Control Labels
- Emission Control Visual Inspection
- Notes
- Positive Crankcase Ventilation (PCV)
- Thermostatic Air Cleaner (TAC)
- Fuel Evaporative System (EVAP)
- Catalytic Converters
- Fill Pipe RESTRICTOR (Fr)
- Exhaust Gas RECIRCULATION (EGR) System
- Spark Controls (SPK)
- Air Injection System (AIS)
- Oxygen Sensor (O2)
- Computerized Engine Controls (CEC)
- Early Fuel Evaporation (EFE)
- Emission Maintenance Reminder Light (EMR) (If Equipped)
- Malfunction Indicator Light (Mil)
- Emission Control System Visual Inspection Procedures - General Information
- Electric Cooling Fans
- Cooling System (Mechanical)
- Mechanical
- 2.5L Engine - VIN P
- Engine Identification
- Adjustments
- Trouble Shooting
- Removal & Installation
- Overhaul
- Engine Oiling
- Torque Specifications
- Engine Specifications
- General Specifications
- Crankshaft, Main Bearings & Connecting Rod Bearings Specifications
- Connecting Rods Specifications
- Pistons, Piston Pins & Piston Rings Specifications
- Cylinder Block Specifications
- Engine Valves & Valve Springs Specifications
- Cylinder Head Specifications
- Camshaft Specifications
- Valve Lifters Specifications
- 2.5L Engine - VIN P
- Starter
- Starting System
- Description
- Trouble Shooting
- On-Vehicle Testing
- Bench Testing
- Removal & Installation
- Overhaul
- Starter Specifications
- Torque Specifications
- Wiring Diagrams
- Starting System
- Engine Performance
- Engine Controls - On-Vehicle Adjustments
- Application
- Emissions
- Emission Applications
- Emission Control Abbreviations
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
- Colorado
- CONNECTICUT
- DELAWARE
- District Of COLUMBIA
- GEORGIA
- IDAHO
- ILLINOIS
- INDIANA
- KENTUCKY
- MARYLAND
- MASSACHUSETTS
- MISSOURI
- NEVADA
- New Jersey
- New MEXICO
- New YORK
- North CAROLINA
- OHIO
- OREGON
- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Mode 6 - CHRYSLER
- Introduction
- 1996
- 1997-1998
- 1999
- 2000
- 2001
- 2002
- 2003-2004
- 2005
- 2006
- 2007
- 2007-09 Diesel Engines
- 2008
- 2008-10 Viper
- 2009-10 Pt Cruiser
- 2009 - All Vehicles With V6 Or V8 Engines
- 2009 Vehicles With The "World I4" 4 Cylinder Engine
- 2010 Vehicles
- 2011 Vehicles
- 2012 Vehicles
- Remove, Overhaul & Install
- Engine Controls - Removal, Overhaul & Installation
- Introduction
- Computerized Engine Controls
- Emission System
- Engine Sensors & Switches
- Battery Temperature Sensor
- Brake Switch
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Downstream Heated Oxygen Sensor
- Engine Coolant Temperature Sensor
- Fuel Level Sensor
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (Map) Sensor
- Oil Pressure Sensor
- Output Shaft Speed (OSS) Sensor
- Park/Neutral (P/N) Switch
- Power Steering Pressure (PSP) Switch
- Throttle Position (TP) Sensor
- Transmission Governor Pressure Sensor
- Transmission Overdrive Switch
- Transmission Speed Sensor
- Transmission Temperature Sensor
- Upstream Oxygen Sensor
- Motors, Relays & Solenoids
- Ignition System
- Fuel System
- Torque Specifications
- Engine Controls - Removal, Overhaul & Installation
- Specifications
- System
- Engine Control System & Engine Component Tests
- Introduction
- Computerized Engine Controls
- Engine Sensors, Solenoids & Switches
- Sensors
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Heated Oxygen Sensor (HO2S)
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Transmission Temperature (TRANS Temp) Sensor
- Throttle Position (TP) Sensor
- Vehicle Speed Sensor (VSS)
- Solenoids
- Switches
- Sensors
- Emission Systems & Sub-Systems
- Fuel System
- Ignition System
- Relays & Modules
- Engine Controls - Basic Testing
- Engine Controls - Tests W/Codes
- Model Identification
- Introduction
- Self-Diagnostic System
- Inactive DTC Condition
- Fuel Pressure Release
- Connector Identification
- Self-Diagnostic Tests
- Notes
- DTC P0107: Map Sensor Voltage Too Low
- DTC P0108: Map Sensor Voltage Too High
- DTC P0112: IAT Sensor Voltage Low
- DTC P0113: Intake Air Temperature Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125: Closed Loop Temp Not Reached
- DTC P0131: 1/1 O2S Voltage Shorted To Ground
- DTC P0132: 1/1 O2 Sen Shorted To Voltage
- DTC P0133: 1/1 O2S Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure
- DTC P0138: 1/2 O2S Shorted To Voltage
- DTC P0141: 1/2 O2 Sensor Heater Failure
- DTC P0171: 1/1 Fuel System Lean
- DTC P0172: 1/1 Fuel System Rich
- DTC P0201: Injector #1 Control Circuit
- DTC P0202: Injector #2 Control Circuit
- DTC P0203: Injector #3 Control Circuit
- DTC P0204: Injector #4 Control Circuit
- DTC P0205: Injector #5 Control Circuit
- DTC P0206: Injector #6 Control Circuit
- DTC P0300: Multiple Cylinder Mis-Fire
- DTC P0301: Cylinder #1 Mis-Fire
- DTC P0302: Cylinder #2 Mis-Fire
- DTC P0303: Cylinder #3 Mis-Fire
- DTC P0304: Cylinder #4 Mis-Fire
- DTC P0305: Cylinder #5 Mis-Fire
- DTC P0306: Cylinder #6 Mis-Fire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil #1 Primary Circuit
- DTC P0420: 1/1 Catalytic Converter Efficiency
- DTC P0441: EVAP Purge Flow Monitor Failure
- DTC P0442: EVAP Leak Monitor Small Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0455: EVAP Leak Monitor Large Leak Detected
- DTC P0460: Fuel Level Unit No Change Over Miles
- DTC P0461: Fuel Level Unit No Change Over Time
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: IAC Motor Circuit
- DTC P0505: IAC #1 Motor Circuit
- DTC P0505: IAC #2 Motor Circuit
- DTC P0505: IAC #3 Motor Circuit
- DTC P0505: IAC #4 Motor Circuit
- DTC P0551: Power Steering Switch Failure
- DTC P0600: Pcm Failure SPI Communications
- DTC P0601: Internal Controller Failure
- DTC P0622: Generator Field Not Switching Properly
- DTC P0645: A/C Clutch Relay Circuit
- DTC P1195: Slow 1/1 O2S During Catalyst Monitor
- DTC P1197: Slow 1/2 O2S During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump Relay Control Circuit
- DTC P1294: Target Idle Not Reached
- DTC P1296: No 5 Volts To Map Sensor
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: ASD Relay Control Circuit
- DTC P1389: No ASD Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak MON Pinched Hose Found
- DTC P1491: Rad Fan Control Relay Circuit
- DTC P1492: Ambient/BTS V Too High
- DTC P1493: Ambient/BTS V Too Low
- DTC P1494: Leak Detection Pump SW Or Mech Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1594: Charging System Voltage Too High
- DTC P1682: Charging System Voltage Too Low
- DTC P1696: Pcm Failure EEPROM Write Denied
- DTC P1698: No CCD Messages From TCM
- Test NTC-1A: No Trouble Code Test Menu
- NTC-2A: Checking Secondary Ignition
- NTC-3A: Checking Pcm Power & Ground Circuits
- NTC-3B: Checking ECM Power & Ground Circuits
- NTC-4A: Checking Engine Vacuum
- NTC-5A: Checking Fuel Delivery/Pressure
- NTC-6A: Checking ECT Sensor Calibration
- NTC-6B: Checking ECT Sensor Calibration
- NTC-7A: Checking TP Sensor Calibration
- NTC-7B: Checking Apps Calibration
- NTC-8A: Checking Map Sensor Calibration
- NTC-8B: Checking Map Sensor Calibration
- NTC-9A: Checking Minimum Idle Air Flow (Except 2.5L & 4.0L)
- NTC-9A: Checking Minimum Idle Air Flow (4.0L)
- NTC-10A: Checking Ho2S Switching
- NTC-11A: Checking Ho2S Heater
- NTC-12A: Checking IAC Motor
- NTC-13A: Checking Engine Mechanical Systems
- NTC-13B: Checking Engine Mechanical Systems
- NTC-14A: Checking BTS
- NTC-15A: Checking Brake Switch
- NTC-16A: Checking EVAP System
- NTC-17A: Checking IAT Sensor
- NTC-18A: Checking P/N Switch (A/T)
- NTC-19A: Checking Oil Pressure Sensor
- NTC-20A: Checking A/C System
- NTC-21A: Checking Radiator Fan Operation
- NTC-22A: Checking Charging System
- No-Start Tests
- Test NS-SEL: No Start Selection Menu
- Test NS-1A: Qualifying No Start Condition
- Test NS-2A: Checking Fuel System
- Test NS-3A: Checking Engine Mechanical System
- Test NS-4A: Repairing Low Fuel Pressure
- Test NS-5A: Checking Fuel Pump
- Test NS-6A: Repairing No Response Condition
- Test NS-6C: Repairing No Response Condition
- Test NS-7A: Checking Idle Air Control Motor
- Test NS-9A: Repairing No Crank Condition (A/T)
- Test NS-10A: Repairing No Crank Condition (M/T)
- Verification Tests
- Summary
- Engine Controls - Tests W/O Codes
- O2 Sensor Location & Identification
- Engine Control System & Engine Component Tests
- Testing & Diagnosis
- Engine Control System & Engine Component Tests
- Introduction
- Computerized Engine Controls
- Engine Sensors, Solenoids & Switches
- Sensors
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Heated Oxygen Sensor (HO2S)
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Transmission Temperature (TRANS Temp) Sensor
- Throttle Position (TP) Sensor
- Vehicle Speed Sensor (VSS)
- Solenoids
- Switches
- Sensors
- Emission Systems & Sub-Systems
- Fuel System
- Ignition System
- Relays & Modules
- Engine Controls - Basic Testing
- Engine Controls - Tests W/Codes
- Model Identification
- Introduction
- Self-Diagnostic System
- Inactive DTC Condition
- Fuel Pressure Release
- Connector Identification
- Self-Diagnostic Tests
- Notes
- DTC P0107: Map Sensor Voltage Too Low
- DTC P0108: Map Sensor Voltage Too High
- DTC P0112: IAT Sensor Voltage Low
- DTC P0113: Intake Air Temperature Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125: Closed Loop Temp Not Reached
- DTC P0131: 1/1 O2S Voltage Shorted To Ground
- DTC P0132: 1/1 O2 Sen Shorted To Voltage
- DTC P0133: 1/1 O2S Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure
- DTC P0138: 1/2 O2S Shorted To Voltage
- DTC P0141: 1/2 O2 Sensor Heater Failure
- DTC P0171: 1/1 Fuel System Lean
- DTC P0172: 1/1 Fuel System Rich
- DTC P0201: Injector #1 Control Circuit
- DTC P0202: Injector #2 Control Circuit
- DTC P0203: Injector #3 Control Circuit
- DTC P0204: Injector #4 Control Circuit
- DTC P0205: Injector #5 Control Circuit
- DTC P0206: Injector #6 Control Circuit
- DTC P0300: Multiple Cylinder Mis-Fire
- DTC P0301: Cylinder #1 Mis-Fire
- DTC P0302: Cylinder #2 Mis-Fire
- DTC P0303: Cylinder #3 Mis-Fire
- DTC P0304: Cylinder #4 Mis-Fire
- DTC P0305: Cylinder #5 Mis-Fire
- DTC P0306: Cylinder #6 Mis-Fire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil #1 Primary Circuit
- DTC P0420: 1/1 Catalytic Converter Efficiency
- DTC P0441: EVAP Purge Flow Monitor Failure
- DTC P0442: EVAP Leak Monitor Small Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0455: EVAP Leak Monitor Large Leak Detected
- DTC P0460: Fuel Level Unit No Change Over Miles
- DTC P0461: Fuel Level Unit No Change Over Time
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: IAC Motor Circuit
- DTC P0505: IAC #1 Motor Circuit
- DTC P0505: IAC #2 Motor Circuit
- DTC P0505: IAC #3 Motor Circuit
- DTC P0505: IAC #4 Motor Circuit
- DTC P0551: Power Steering Switch Failure
- DTC P0600: Pcm Failure SPI Communications
- DTC P0601: Internal Controller Failure
- DTC P0622: Generator Field Not Switching Properly
- DTC P0645: A/C Clutch Relay Circuit
- DTC P1195: Slow 1/1 O2S During Catalyst Monitor
- DTC P1197: Slow 1/2 O2S During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump Relay Control Circuit
- DTC P1294: Target Idle Not Reached
- DTC P1296: No 5 Volts To Map Sensor
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: ASD Relay Control Circuit
- DTC P1389: No ASD Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak MON Pinched Hose Found
- DTC P1491: Rad Fan Control Relay Circuit
- DTC P1492: Ambient/BTS V Too High
- DTC P1493: Ambient/BTS V Too Low
- DTC P1494: Leak Detection Pump SW Or Mech Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1594: Charging System Voltage Too High
- DTC P1682: Charging System Voltage Too Low
- DTC P1696: Pcm Failure EEPROM Write Denied
- DTC P1698: No CCD Messages From TCM
- Test NTC-1A: No Trouble Code Test Menu
- NTC-2A: Checking Secondary Ignition
- NTC-3A: Checking Pcm Power & Ground Circuits
- NTC-3B: Checking ECM Power & Ground Circuits
- NTC-4A: Checking Engine Vacuum
- NTC-5A: Checking Fuel Delivery/Pressure
- NTC-6A: Checking ECT Sensor Calibration
- NTC-6B: Checking ECT Sensor Calibration
- NTC-7A: Checking TP Sensor Calibration
- NTC-7B: Checking Apps Calibration
- NTC-8A: Checking Map Sensor Calibration
- NTC-8B: Checking Map Sensor Calibration
- NTC-9A: Checking Minimum Idle Air Flow (Except 2.5L & 4.0L)
- NTC-9A: Checking Minimum Idle Air Flow (4.0L)
- NTC-10A: Checking Ho2S Switching
- NTC-11A: Checking Ho2S Heater
- NTC-12A: Checking IAC Motor
- NTC-13A: Checking Engine Mechanical Systems
- NTC-13B: Checking Engine Mechanical Systems
- NTC-14A: Checking BTS
- NTC-15A: Checking Brake Switch
- NTC-16A: Checking EVAP System
- NTC-17A: Checking IAT Sensor
- NTC-18A: Checking P/N Switch (A/T)
- NTC-19A: Checking Oil Pressure Sensor
- NTC-20A: Checking A/C System
- NTC-21A: Checking Radiator Fan Operation
- NTC-22A: Checking Charging System
- No-Start Tests
- Test NS-SEL: No Start Selection Menu
- Test NS-1A: Qualifying No Start Condition
- Test NS-2A: Checking Fuel System
- Test NS-3A: Checking Engine Mechanical System
- Test NS-4A: Repairing Low Fuel Pressure
- Test NS-5A: Checking Fuel Pump
- Test NS-6A: Repairing No Response Condition
- Test NS-6C: Repairing No Response Condition
- Test NS-7A: Checking Idle Air Control Motor
- Test NS-9A: Repairing No Crank Condition (A/T)
- Test NS-10A: Repairing No Crank Condition (M/T)
- Verification Tests
- Summary
- Engine Controls - Tests W/O Codes
- O2 Sensor Location & Identification
- Engine Control System & Engine Component Tests
- Theory and Operation
- Engine Controls - Theory & Operation
- Introduction
- Computerized Engine Controls
- Powertrain Control Module (Pcm)
- Input Devices
- Notes
- A/C Switch
- Automatic Shutdown (ASD) Relay Input Signal
- Battery Temperature Sensor
- Battery Voltage Signal
- Brake Switch
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Cruise Control Switches
- Engine Coolant Temperature (ECT) Sensor
- Heated Oxygen Sensor (HO2S)
- Ignition Circuit
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Overdrive/Override (OD/OR) Switch (A/T)
- Park/Neutral (P/N) Switch
- Power Steering Pressure (PSP) Switch (2.5L)
- Serial Communications Interface (SCI) Receive
- Throttle Position (TP) Sensor
- Vehicle Speed Sensor (VSS)
- Vehicle Theft Security System (VTSS)
- Output Signals
- Notes
- A/C Compressor Clutch Relay
- Automatic Shutdown (ASD) Relay
- Cruise Control Servo
- Evaporative (EVAP) Emission System
- Fuel Injectors
- Fuel Pump Relay
- Generator Field
- Generator Light
- Idle Air Control (IAC) Motor
- Ignition Coil
- Injection Timing
- Malfunction Indicator Light (MIL)
- Radiator Cooling Fan Relay
- Serial Communication Interface (SCI) Transmit
- Upshift Indicator Light (M/T)
- Fuel System
- Ignition System
- Hall Effect System
- Notes
- Engine Coolant Temperature (ECT) Sensor
- Crankshaft Position (CKP) Sensor
- Distributor (Cherokee & Wrangler)
- Ignition Coil (Cherokee & Wrangler)
- Ignition Coils (Grand Cherokee)
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Powertrain Control Module (PCM)
- Throttle Position (TP) Sensor
- Hall Effect System
- Emission System
- Self-Diagnostic System
- Miscellaneous Controls
- Engine Controls - Theory & Operation
- Vacuum Diagrams
- Wiring Diagrams
- General Information
- Abbreviations
- Basic Trouble Shooting
- Basic Trouble Shooting - General Information
- Commonly Used Abbreviations - General Information
- Emission Control Abbreviations
- Engine Performance - Trouble Shooting - General Information
- Brakes
- Anti-Lock Brake Safety Precautions - General Information
- Map - Brake Systems
- Brake Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accelerometers
- Accumulators
- Anchor Pins
- Anti-Lock Brake Control Assembly(Module)
- Anti-Lock Brake Controller
- Anti-Lock Brake Systems
- Axle Seal
- Backing Plates
- Bleeder Screw
- Brake Abs Active Light (Blue)
- Brake Fluid
- Brake Friction Material
- Brake On - Off Switch
- Brake Pads
- Brake Pedals
- Brake Shoe Hardware
- Brake Shoes
- Brake Stoplight Switches
- Brake Warning Light (Amber)
- Brake Warning Light (Red)
- Bulb Sockets
- Bulbs And LEDS
- Caliper Hardware
- Caliper Mounting Pin
- Caliper Piston
- Caliper Shim
- Caliper Slider Pin (Bolt) Dust Boot
- Caliper Slider Pin (Bolt)
- Calipers
- Combination Valve
- Controllers
- Digital Ratio Axle Controllers And Buffers (Drab And Dram)
- Disable Switches
- Drums
- Electrical Brake Pumps
- Electrical Park Motor
- Electrical Pumps And Motors
- Electro-Magnetic Interference
- Electronic Brake Control Modulator
- Electronic Brake Distribution
- Electronic Brake Traction Control Module
- Electronic Controllers
- Electronic Traction Control
- External Brake Cable
- Flow Control Valve
- Fluid Level Sensor Switches
- Fluid
- Four Wheel Drive Switches
- Friction Material
- G Sensors
- Gaskets
- Gravitational Switches
- Grease Seal
- Height Sensing Proportioning Valve
- High Pressure Accumulator
- Hoses
- Hub
- Hydraulic Control Unit
- Hydraulic Modulators
- Hydro-Boosters
- Hydro-Electric Boosters (POWERMASTER)
- Ignition Disable Switches
- Lamp Driver Relay
- Lateral Acceleration Switches
- LEDS
- Lenses
- Low Pressure Accumulator
- Lug Nut
- Master Cylinder Cover Gasket
- Master Cylinders
- Modulators
- Motor Pack
- Motors
- Pads
- Parking Brake Cable
- Parking Brake Mechanism
- Parking Brake Shoes
- Parking Brake Switches
- Parking Brake Systems
- Pedal Travel Switches
- Pedals
- Power Distribution Center
- POWERMASTER
- Pressure Differential Switches
- Pressure Switches
- Pressure Transducers
- Proportioning Valve
- Pumps
- Relays
- RELUCTOR (Speed) Ring
- Rotors
- Self-Adjusting Systems
- Shoe Hardware
- Shoes
- Sockets
- Speed Sensor (RELUCTOR) Ring
- Speed Sensors (Electronic Wheel And Vehicle)
- Star Wheel
- Steel Brake Lines
- Stoplight Switches
- Stroke Sensor
- Switches
- Tires
- Tone Ring
- Toothed Rings (Tone Wheel)
- Traction Control System (TCS)
- Transfer Tubes
- Vacuum Boosters
- Vacuum Hoses
- Valves
- Wear Indicator
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheel Cylinders
- Wiring Harnesses
- Yaw Rate Sensor
- Brake System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Brake Systems
- Map - Routine Inspection Reference Guide
- Routine Inspection Reference Guide
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Maintenance Overview
- Antifreeze/Coolant
- Visual Inspection
- Radiator Cap Test
- Engine Fan
- Cooling System Power Flush And Refill
- Belts (Except Timing Belts)
- Belt TENSIONER
- Automatic Transmission Fluid
- Automatic Transmission Fluid Exchange & Filter Replacement
- Engine Oil
- Air Filters
- Cabin Air Filter
- Brake Fluid
- Battery
- Battery Cables
- Power Steering
- Power Steering Fluid
- Wiper Blades
- Routine Inspection CHECKSHEET
- Routine Inspection - UICS
- Brake Systems
- Drivetrain And Transmission
- Notes
- Automatic Transmission Fluid
- Clutch Master Cylinders
- Cooler Lines
- Coolers
- Differential Fluid
- Drain Plugs And Gaskets
- Filters And Screens
- Fluids And Lubricants
- Hoses, Lines, And Tubes
- Hydraulic Fluid
- Lubricants
- Manual Transmission Fluid
- Mounts (Engine, Transaxle And Transmission)
- Transfer Case Fluid
- Vacuum Hoses
- Electrical Systems
- Engine Performance And Maintenance
- Notes
- Accessory Belts
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Pump Belts
- Batteries
- Battery Connectors
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Chemical Engine DECARBONIZATION
- Combustion Chamber Cleaning
- Coolant Recovery Tanks
- Coolant
- Distributor Caps
- Distributor Rotors
- Engine Cooling Systems
- Engine DECARBONIZATION
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel System Cleaning Service
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Ignition Wires (Secondary)
- Intake Cleaning
- O2 Sensors
- PCV Breather Elements
- PCV Valves
- Radiator Caps And Pressurized Expansion Tank Caps
- Spark Plugs
- Thermostats And Housings
- Throttle Body Cleaning
- Timing Belts
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Exhaust Systems
- Heating, Ventilation And Air Conditioning Systems
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Wheel & Tire Supplement
- Reason Code Explanation
- Automotive Terminology & Definitions
- Routine Inspection Reference Guide
- Check Lists
- Computer Relearn Procedures
- Introduction
- Computer Relearn Procedures
- All Models
- Fwd Cars & Fwd Vans
- Transaxle Shift Quality Quick Learn Procedure (All FWD Cars Except Avenger & Sebring Coupe, & All FWD Vans)
- Transaxle Shift Quality Quick Learn Procedure (Avenger & Sebring Coupe)
- Pinion Factor Procedure (All FWD Cars Except Avenger & Sebring Coupe, & All FWD Vans)
- Pinion Factor Procedure (Avenger & Sebring Coupe)
- OBD-II Drive Cycles
- Driveline/Axles
- Drive Axle Noise Diagnosis - General Information
- Gear Tooth Contact Patterns - General Information
- Map - Drive Train & Transmission
- Drive Train & Transmission Systems
- Drivetrain And Transmission
- Notes
- Actuators (Electrical)
- Actuators (Vacuum)
- Automatic Transmission / Transaxle Assemblies/CVTS
- Automatic Transmission Fluid
- Axles
- Bearings And Races
- Bell Cranks
- Bell Housings
- Bushings (External)
- Cables (Speedometer)
- Cables (TV, Detent And Shift)
- Carrier Bearings
- Clutch Cables And Cable Housings
- Clutch Discs (Manual Transmissions)
- Clutch Forks
- Clutch Linkages (Mechanical)
- Clutch Master Cylinders
- Clutch Pedals
- Clutch Pivots
- Clutch Pressure Plates
- Clutch Release Bearings
- Clutch Slave Cylinders (Concentric)
- Clutch Slave Cylinders (Conventional Or External)
- Companion Flanges
- Connectors
- Cooler Bypass Valves
- Cooler Lines
- Coolers
- CV Joints
- Differential And Final Drive Assemblies
- Differential Fluid
- Dip Stick Tubes
- Dip Sticks (Fluid Level Indicators)
- Dowel Pins, Guides And Pilot Holes
- Drain Plugs And Gaskets
- Drive Shaft Flanges
- Drive Shafts And Half Shafts
- Dust Boots
- Engine Mounts
- Exciter Rings
- Filler Tubes
- Filters And Screens
- Flanges
- Flex Plates
- Fluid Level Indicators
- Fluids And Lubricants
- Flywheels
- Force Motors
- Gaskets
- Guides
- Half Shafts
- Hoses, Lines, And Tubes
- Housings (Bell, Case, Tail(Extension) And Auxiliary)
- Hydraulic Fluid
- Intermediate Shaft Support Bearings
- Key Interlock Systems
- Limited Slips
- Lines
- Linkages (External)
- Locking Hub Assemblies
- Locking Hub Control Knobs
- Lubricants
- Manual Transmission Fluid
- Manual Transmission/Transaxle Assemblies
- Metal Clad Seals
- METALASTIC Joints
- Modulator Pins
- Modulators
- Mounts (Engine, Transaxle And Transmission)
- Odometer Drives (Mechanical)
- Odometer Heads (Mechanical)
- Oil Pans
- Pans
- Pilot Holes
- Pressure Plates
- Pressure Switches
- Races
- Rubber Joints (METALASTIC)
- Screens
- Seals (Metal Clad)
- Seals
- Selector Interlock Systems
- Sensors
- Servos
- Shift Interlock Systems (Selector And Key Interlock Systems)
- Side Covers
- Slip Yokes
- Solenoids
- Speed Sensors (Electronic Wheel And Vehicle)
- Speedometer- Driven Gear Housing
- Speedometer/Odometer Drives (Mechanical)
- Speedometer/Odometer Heads (Mechanical)
- Speedometers/Odometers (Electronic)
- Switches
- Tone Wheels
- Toothed Rings (Tone Wheel)
- Torque Converters
- Transaxle Mounts
- Transducers (Transmission)
- Transfer Case Assemblies
- Transfer Case Fluid
- Transmission Coolers
- Transmission Mounts
- Transmission Pans
- Transmission Range Indicators (PRNDL)
- Tubes
- Universal Joints (CARDAN Or Cross Type)
- Vacuum Controls
- Vacuum Hoses
- Vacuum Motors
- Vacuum-Operated Switches
- Vehicle Speed Sensors
- Vents
- Vibration Dampers
- Wheel Attachment Hardware
- Wheel Speed Sensors
- Wiring Harnesses And Connectors
- Yokes And Slip Yokes
- Reason Code Explanation
- Automotive Terminology & Definitions
- Trouble Shooting - Clutches - General Information
- DTC Index
- Electrical
- Map - Electrical Systems
- Electrical Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Actuator Motors (Electric)
- Actuator Motors (Vacuum)
- Air Bags
- Alternators And Generators
- Amplifiers
- Antennas
- Batteries
- Battery Cables, Wires And Connectors
- Battery Cables
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belts
- Bulb Sockets
- Bulbs, Sealed Beams And LEDS
- Cd Players
- Cigarette Lighter Assemblies
- Circuit Breakers
- Clutch Switches
- Connectors
- Control Modules
- Cruise Control Brake Switches
- Cruise Control Cables
- Cruise Control Clutch Switches
- Cruise Control Linkages And Cables
- Cruise Control Reservoirs
- Cruise Control Tubes
- Cruise Control Vacuum Dump Release Valves
- Cruise Control Vacuum Hoses, Tubes And
- Cruise Control Vehicle Speed Sensors
- Defoggers
- Defrosters
- Delays
- Dimmers
- Electric Heaters
- Equalizers
- Fuse Blocks
- Fuse Boxes And Blocks
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gauges
- Generators
- Ground Cables And Straps
- Ground Straps
- Headlight Adjusters
- Heating Elements (Defrosters, Defoggers, Electric Heaters And Seats)
- Horns And Sirens
- Ignition Switches
- Indicator Lights
- Keyless Entry Keypads And Transmitters
- Keyless Entry Transmitters
- LEDS
- Lenses
- Microphones
- Mirrors (ELECTROCHROMATIC And Heated)
- Motors
- Neutral Safety Switches
- Odometers, Speedometers And Tachometers (Cable Driven)
- Odometers
- Power Distribution Center
- Pulleys
- Receivers, Amplifiers, Equalizers And Sub-Woofer Volume Controls
- Relay Boxes
- Relays
- Sealed Beams
- Seat Heaters
- Security Alarm Sensors
- Sirens
- Solenoids
- Speakers And Microphones
- Speedometer And Tachometer Linkages And Cables
- Speedometer Cables
- Speedometers
- Starters
- Sub-Woofer Volume Control
- Switches
- Tachometer Cables
- Tachometers
- Tape Players And Cd Players
- TENSIONERS
- Timers
- Transceivers
- Transducers
- Vacuum Accumulators (Reservoirs)
- Voltage Regulators
- Washer Fluid Level Senders
- Washer Pumps
- Wiper Arms And Blades
- Wiper Blades
- Wiper Hoses And Nozzles
- Wiper Linkages
- Wiper Nozzles
- Wiper Pump Reservoirs
- Wiring Harnesses And Connectors
- Battery, Starting & Charging System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Electrical Systems
- Using lemon2025'S System Wiring Diagrams
- Map - Electrical Systems
- Engine
- Engine Overhaul Procedures - General Information
- * Please Read This First *
- Description
- Engine Identification
- Inspection Procedures
- Cleaning Procedures
- Component Cleaning
- Cylinder Head Replacement
- Cylinder Head Overhaul
- Pistons, Connecting Rods & Bearings
- Crankshaft & Main Bearings
- Camshaft
- Timing Chains & Belts
- Timing Gears
- Oil Pump
- Break-In Procedure
- General Cooling System Service - General Information
- Engine Overhaul Procedures - General Information
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Engine Performance And Maintenance (Including Exhaust Systems)
- Engine Performance & Maintenance CHECKSHEET
- Engine Performance And Maintenance
- Notes
- Accelerator Pedal Position Sensor
- Accessory Belts
- Accessory Pulleys
- Air Conditioning Cycling Switches
- Air Conditioning Pressure Sensors
- Air Ducts And Tubes
- Air Filter Elements
- Air Filter Gaskets
- Air Filter Housings And Gaskets
- Air Fuel Ratio Sensors
- Air Injection Control Solenoids
- Air Plenums
- Air Pump Belts
- Air Pumps (Electric Driven)
- Air Tubes
- Aspirator, Check And DECEL Valves
- Baffles
- Ballast Primary Supply Resistor Wires
- Ballast Resistors And Primary Supply Resistors
- Barometric Pressure Sensors
- Batteries
- Battery Cables, Wires And Connectors
- Battery Connectors
- Battery Trays And Hold Down Hardware
- Battery Wires
- Belt Idler Assemblies (Accessory And Cam Belts)
- Belt TENSIONERS (Accessory And Cam Belt)
- Belt-Driven Air Pumps
- Boost Control Mechanism
- Camshaft Position Sensors
- Carburetors And Chokes
- Casting Core Plugs And Expansion Plugs
- Charge Air Coolers ""INTERCOOLERS"" (CAC)
- Check Valves
- Chemical Engine DECARBONIZATION
- Chokes
- Clutch Pedal Position Switches
- Cold Start Injectors
- Combustion Chamber Cleaning
- Connectors
- Coolant Recovery Tanks
- Coolant
- Cooling Fan Motor Modules
- Cooling Fan Motor Relays And Modules
- Cooling Fan Motor Resistors
- Cooling Fan Motor Sensors And Switches
- Cooling Fan Motor Switches
- Cooling Fan Motors
- Crankshaft Position Sensors
- Cylinder Deactivation Solenoid
- Cylinder Head Assemblies
- DECEL Valves
- Deflectors
- Dip Stick Tubes
- Dip Sticks And Tubes
- Distributor Advances And Retarders (Mechanical And Vacuum)
- Distributor Boots And Shields
- Distributor Caps
- Distributor Retarders (Mechanical And Vacuum)
- Distributor Rotors
- Distributor Shields
- Distributors
- Early Fuel Evaporation Valves (Heat Riser Assemblies)
- EGR Coolers
- EGR Exhaust Manifold Passages
- EGR Intake And Exhaust Manifold Passages
- EGR Plates And Coolers
- Electronic Spark Control Modules
- Electronic Transmission Control Devices
- Electronic Transmission Feedback Devices
- Engine Coolant Temperature Sensors
- Engine Cooling Systems
- Engine Covers (Oil Pan, Valve Cover, Timing Cover)
- Engine DECARBONIZATION
- Engine Oil Canisters
- Engine Oil Coolers (External)
- Engine Oil Drain Plugs And Gaskets
- Engine Oil Filters And Canisters
- Engine Oil Gaskets
- Engine Oil Pressure Gauges (Mechanical)
- Engine Oil
- Evaporative Emissions (EVAP) Canister Filters
- Evaporative Emissions (EVAP) Canister Purge Devices
- Evaporative Emissions (EVAP) Canisters
- Evaporative Emissions (EVAP) Feedback Devices
- Exhaust Gas RECIRCULATION Devices
- Exhaust Gas RECIRCULATION Feedback Devices
- Expansion Plugs
- Fan Control Sensor
- Fuel Accumulators And Dampers
- Fuel And Cold Start Injectors
- Fuel Caps
- Fuel Dampers
- Fuel Delivery Check Valves
- Fuel Distributors (BOSCH Cis)
- Fuel Filler Necks And RESTRICTORS
- Fuel Filters
- Fuel Injector Cleaning
- Fuel Injectors
- Fuel Level Senders
- Fuel Pressure Regulators
- Fuel Pumps (In-Tank, External, Electrical Or Mechanical)
- Fuel Rails
- Fuel RESTRICTORS
- Fuel System Cleaning Service
- Fuel Tanks
- Fuel
- Gaskets
- Grommets (Valve Cover)
- Harmonic Dampers
- Heater Control Valves
- Heater Cores
- Hose Clamps
- Hose Connectors
- Hose Couplers
- Hoses And Tube Couplers, Connectors And Clamps
- Hoses And Tubes (Fuel Lines, Radiator, Vacuum, By-Pass, Heater, Recovery Tank And Oil Coolers)
- Housings
- Idle Air Controls
- Idle Speed Control Actuators
- Ignition Boots
- Ignition Coil Towers
- Ignition Coils
- Ignition Control Modules (ICM)
- Ignition Switches
- Ignition Terminals
- Ignition Wires (Secondary)
- Inertia Fuel Shut-Off Switches
- Intake Air Temperature Sensors
- Intake Cleaning
- Intake Manifolds
- In-Tank Fuel Strainers
- INTERCOOLERS
- Knock Sensors
- Liquid Vapor Separators
- Long Block Assemblies
- Manifold Absolute Pressure (Map) Sensors
- Mass Air Flow (MAF) Sensors
- Metal Air Manifolds And Pipes
- Metal Air Pipes
- Mix Control Solenoids
- Motor Mounts
- O2 Sensors
- Oil Pans
- Oil Pressure Sending Units
- Oil Pump Pick-Up Screens
- Oil Pumps
- O-Rings, Gaskets, Seals And Spring Locks
- Park Neutral Position Switches
- PCV Breather Elements
- PCV Orifices
- PCV Valves
- Pick-Up Assemblies (Includes Magnetic, Hall Effect And Optical)
- Power Steering Pressure Sensors
- Powertrain Control Modules (Pcm) And Prom
- Powertrain Control Prom
- Pressurized Expansion Tank Caps
- Radiator / Cooling Fan Blades
- Radiator / Cooling Fan Clutches
- Radiator Caps And Pressurized Expansion Tank Caps
- Radiators
- Roll Over Valves
- Sealing Compounds
- Seals
- Secondary Air Injection System Management Devices
- Sensors
- Short Block Assemblies
- Shrouds, Baffles And Deflectors
- Spark Plugs
- Spring Locks
- Super Chargers
- Switches
- Thermal Vacuum Valves
- Thermostatic Air Door Assemblies
- Thermostats And Housings
- Throttle Bodies
- Throttle Body Cleaning
- Throttle Cables
- Throttle Linkages And Cables
- Throttle Position Sensors
- Throttle Position Switches
- Timing Belt Sprockets
- Timing Belts
- Timing Covers
- Torque Struts
- Transmission Range Switches
- Tube Clamps
- Tube Connectors
- Tube Couplers
- Tubes
- Turbo Chargers
- Vacuum Connections
- Vacuum Hoses, Tubes And Connections (Non-Metallic)
- Vacuum Regulator Solenoids
- Vacuum Tubes
- Valve Covers
- Vehicle Speed Senors
- Volume Air Flow Sensors
- Waste Gate And Boost Control Mechanisms
- Waste Gate Control Solenoids
- Water Pumps (Electric)
- Water Pumps (Non-Electric)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- ALASKA
- ARIZONA
- CALIFORNIA
- Colorado
- CONNECTICUT
- DELAWARE
- District Of COLUMBIA
- GEORGIA
- IDAHO
- ILLINOIS
- INDIANA
- KENTUCKY
- MARYLAND
- MASSACHUSETTS
- MISSOURI
- NEVADA
- New Jersey
- New MEXICO
- New YORK
- North CAROLINA
- OHIO
- OREGON
- PENNSYLVANIA
- RHODE Island
- TENNESSEE
- TEXAS
- UTAH
- VIRGINIA
- WASHINGTON
- WISCONSIN
- U. S. EPA ASM2525 & ASM5015 Start-Up Emission Standards
- U. S. EPA Revised Final ASM Emission Standards (ASM5015 & ASM2525)
- U.S. EPA Im240 Emission Standards
- Waveforms - Injector Pattern Tutorial - General Information
- * Please Read This First *
- Purpose Of This Article
- Is A Lab Scope Necessary?
- The Two Types Of Injector Drivers
- The Two Ways Injector Circuits Are Wired
- Interpreting Injector Waveforms
- Current Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Voltage Waveform Samples
- Notes
- Example #1 - Voltage Controlled Driver
- Example #2 - Voltage Controlled Driver
- Example #3 - Voltage Controlled Driver
- Example #4 - Current Controlled Driver
- Example #5 - Current Controlled Driver
- Example #6 - Current Controlled Driver
- Example #7 - Current Controlled Driver
- Example #8 - Current Controlled Driver
- Map - Exhaust Systems
- Exhaust Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Catalytic Converters
- Exhaust And Tail Pipes
- Exhaust Connections
- Hangers
- Heat Risers (Mechanical EFE Devices)
- Heat Shields
- Manifolds (Cast And Tube Type)
- Mechanical EFE Devices
- Muffler Valve
- Mufflers And Resonators
- Reason Code Explanation
- Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Map - Heating, Ventilation, & Air Conditioning
- Heating, Ventilation & Air Conditioning Systems
- Notes
- Map Standards Of Service
- The Map Process - Overview
- The Map Process - Overview Of Service Requirements And Suggestions
- Accumulators
- Actuators (Electrical)
- Actuators (Vacuum)
- Air Conditioning Fittings
- Air Conditioning Hoses
- Air Conditioning Metal Lines
- Air Control Doors
- Air Dams (External)
- Air Distribution System
- Belts
- Blend Doors
- Blower Fans (Blower Wheel Or Squirrel Cage)
- Blower Motors
- Blower Resistors
- Blower Switches
- Cabin Air Filters
- Circuit Breakers
- Compressor Clutch Assemblies
- Compressors
- Condenser Air Seals
- Condenser Fan Motors
- Condensers
- Connectors
- Control Cables
- Control Heads (Function Selectors)
- Control Linkages
- Control Modules
- Coolant
- Cooling Fan Blades
- Cooling Fan Clutches
- Cooling Fan Motors
- Evaporator Drain Tubes
- Evaporator Filters
- Evaporator Pressure Regulators (EPRS)
- Evaporators
- Expansion Valves
- Function Selectors
- Fuses, Fusible Links And Circuit Breakers
- Fusible Links
- Gaskets
- Heater Cases
- Heater Control Valves
- Heater Cores
- Heater Hoses
- High Pressure Relief Valves (HPRV)
- Idlers
- In-Line Filters
- Metal Fittings
- Metal Lines
- Mix And Air Control Doors (Blend Doors)
- ORIFACE Tubes
- O-Rings
- Pilot-Operated Absolutes (POAS)
- Plenums
- Pressure Control Valves
- Pressure Sensors
- Pulleys
- Radiators
- Receiver-DRIERS
- Refrigerant Oil
- Refrigerant
- Relays
- Seals
- Service Ports
- Spring Lock Couplings
- Suction Throttling Valves (STVS)
- Switches (Electrical)
- TENSIONERS
- Thermistors And Pressure Sensors
- Thermostats And Housings
- Vacuum Hoses And Tubes
- Vacuum Reservoirs
- Vacuum Tubes
- Valves In Receiver (VIRS)
- Water Pumps (Electric Auxiliary)
- Wiring Harnesses And Connectors
- Heating, Ventilation & Air Conditioning System CHECKSHEET
- Reason Code Explanation
- Automotive Terminology & Definitions
- Heating, Ventilation & Air Conditioning Systems
- Map - Heating, Ventilation, & Air Conditioning
- Identification
- Metric Conversions
- OEM General Information
- Diagnostic Trouble Code Definitions - General Information
- How To Use The Engine Performance Section
- Maintenance Reminder Light (Reset Procedures)
- Air Bag Restraints & SRS Components - Inspection & Replacement Tables
- Specifications Index
- Steering
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Steering & Suspension Systems
- Wheel And Tire
- Steering & Suspension CHECKSHEET
- Wheels & Tires CHECKSHEET
- Steering And Suspension, Wheel Alignment, Wheels And Tires
- Notes
- Active Handling
- Active Suspension Control Modules
- Active Variable Ratio Steering
- Active Yaw Control
- Adaptive Cruise Control
- Advance TRAC
- Air Bags
- Air Ride Control Modules
- Air Ride Suspension Torsion Springs (Counter Balancing)
- Air Ride Suspension
- Air Ride Tubes
- Air Shocks And Air Struts
- Air Spring Valves
- Air Springs
- Air Suspension Control Valves
- Air Suspension DRIERS
- Axle Acceleration Sensor
- Ball Joints
- Body Acceleration Sensor
- Bushings
- Center Links
- Compressors
- Continuous Damping Control
- Control Arm Shafts
- Control Arms
- Control Modules
- Distance Regulation Control Module
- Distance Regulation Sensor
- Drag Links
- Dynamic Stability Control
- Dynamic Stability Traction Control
- Electronic Ride Control Shocks And Struts
- Electronic Stability Control
- Electronic Suspension System
- Flex Couplers
- Gaskets
- Height Sensors
- Hydraulic Hoses
- Hydraulic Power Steering Pumps
- Hydraulic Suspension Hoses
- Hydraulic Suspension Pumps
- Idler Arms
- Intermediate Shaft U-Joints
- King Pins
- Modules
- Pitman Arms
- Power Steering Belts
- Power Steering Coolers
- Power Steering Fluid
- Power Steering Hoses
- Power Steering Lines (Steel)
- Power Steering Pumps - Electric
- Power Steering Pumps
- Radar Sensor
- Radius Arms
- Relay Rods
- Relays
- Sensors
- Shock Absorbers, Strut Cartridges And Strut Assemblies
- Spindles
- Springs, Coil, Leaf And Torsion Bars
- STABILITRAC
- Stability Management System
- Steering Angle Sensor
- Steering Arms
- Steering Couplers
- Steering Dampers
- Steering Gears (Except Rack And Pinion)
- Steering Gears, Rack And Pinion
- Steering Knuckles
- Strike Out Bumpers
- Strut Bearing Plate Assemblies
- Strut Rods
- Suspension Pumps (Hydraulic)
- Sway Bar Links
- Sway Bar Mounting Bushings
- Sway Bars
- Switches
- Tie Rod Ends (Inner And Outer)
- Tire Pressure Monitoring System
- Tire Pressure Sensors
- Tires
- Torque Sensor
- Torsion Springs
- Track Bar Bushings
- Track Bars
- Trailing Arm Bushings
- Trailing Arms
- Valve Stems
- Vehicle Dynamics Control
- Vehicle Speed Sensor
- Vehicle Stability Assist
- Vehicle Stability/Skid Control
- Warning Lamps
- Wheel Alignment
- Wheel Attachment Hardware
- Wheel Bearings, Races And Seals
- Wheels (Rims)
- Wiring Harnesses And Connectors
- Reason Code Explanation
- Automotive Terminology & Definitions
- Wheel Alignment Theory & Operation - General Information
- Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- General Servicing
- Cabin Air Filter (Special Applications) - General Information
- HVAC System - Compressor Applications & Body Designations
- HVAC System - Compressor Refrigerant Oil Checking
- Refrigerant Oils
- Servicing Precautions
- Checking Compressor Oil
- HVAC System - Compressor Servicing
- HVAC System - General Servicing
- USING R-134a REFRIGERANT
- System Service Valves
- Service Equipment
- Manifold Gauge Set
- Pressure-Temperature Relationship
- Pressure Gauge Readings
- Orifice Tube Replacement
- Refrigerant Recovery/Recycling
- Flushing A/C System
- Evacuating A/C System
- Charging A/C System
- Leak Testing
- HVAC System - Refrigerant Oil & Refrigerant Specifications
- HVAC Control Systems
- General Servicing
- Maintenance
- Procedures
- Maintenance Information
- Model Identification
- Maintenance Service Information
- Service Point Locations
- ADDTIONAL Service Information
- Lubrication Specifications
- Fluid Capacities
- Tire Specifications
- Battery Specifications
- Cautions & Warnings
- SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) (1995-96 Models)
- Air Conditioning Maintenance
- Air Conditioning Servicing
- Anti-Lock Brake System (If Equipped)
- Axle Fluid
- Battery Warning
- Replacing Blown Fuses
- Brake Pad Wear Indicator
- Brake Fluid Maintenance
- Brake Warning Light
- Catalytic Converter
- Coolant (Propylene-Glycol Formulations)
- Command-TRAC (4WD)
- Front And Rear Differentials (4WD)
- TRAC-LOK Differentials (4WD)
- Gasoline Containing Alcohol
- Halogen Bulbs
- Oil Filter
- Radiator Cap
- Radiator Fan
- Wheel & Tire Warnings
- Warranty Information
- Fuses & Relays
- Maintenance Reminder Light (Reset Procedures)
- Maintenance Information
- Procedures
- Restraints
- Air Bag, SRS
- Air Bag Restraint System
- Description & Operation
- Service Precautions
- Adjustments
- Disabling & Activating Air Bag System
- Disposal Procedures
- Post-Collision Inspection
- Removal & Installation
- System Operation Check
- Diagnosis & Testing
- Diagnostic Tests
- Notes
- Repairing Stored Trouble Codes
- Driver Squib Circuit Open
- Driver Squib Circuit Shorted
- Either Squib Term Shorted To Battery
- Either Squib Term Shorted To Ground
- Loss Of Ignition Run Only
- Loss Of Ignition Run/Start
- No CCD Communication
- No Cluster CCD Bus Message
- Passenger Squib Circuit Open
- Passenger Squib Circuit Shorted
- Warning Light Circuit Open/Shorted
- Air Bag Verification Test
- Vehicle Communications
- Torque Specifications
- Wiring Diagrams
- Air Bag Restraint System
- Air Bag, SRS
- Steering
- Manual Steering
- Steering Knuckles - 4WD
- Steering System - Power Recirculating Ball
- Description & Operation
- Testing
- Lubrication
- Adjustments
- Removal & Installation
- Overhaul
- Torque Specifications
- Power Steering
- Steering Knuckles - 4WD
- Steering System - Power Recirculating Ball
- Description & Operation
- Testing
- Lubrication
- Adjustments
- Removal & Installation
- Overhaul
- Torque Specifications
- Steering Wheel & Steering Column
- Manual Steering
- Suspension
- Front Suspension
- Description
- Adjustments & Inspection
- Removal & Installation
- Torque Specifications
- Rear Suspension
- Wheel Alignment Specifications & Adjustment Procedures
- Front Suspension
- Transmission
- Automatic Trans
- 30RH & 32RH Automatic Transmission - Diagnosis
- Automatic Transmission - Service Information
- Diagnosis - Aw-4 Automatic Transmission
- Application
- Description
- Operation
- Self-Diagnostic System
- Test Equipment & Hook-Up
- Connector Views
- Diagnostic Tests
- Notes
- Entering Diagnostics
- DTC P0122: TPS Signal Circuit
- DTC P0562: Transmission Voltage Low
- DTC P0563: Transmission Voltage High
- DTC P0705: Check Shifter Signal
- DTC P0715: Input Speed Sensor
- DTC P0720: Output Speed Sensor
- DTC P0740: Solenoid No. 3 Functional Fault
- DTC P0751: Solenoid No. 1 Functional Fault
- DTC P0756: Solenoid No. 2 Functional Fault
- DTC P1694: CCD Message From JTEC Failure
- DTC P1718, P1742 & P1743: Internal TCM Failure
- DTC P1744: Solenoid No. 1 Short To Ground
- DTC P1745: Solenoid No. 1 Short To Power
- DTC P1746: Solenoid No. 2 Short To Ground
- DTC P1747: Solenoid No. 2 Short To Power
- DTC P1748: Solenoid No. 3 Short To Ground
- DTC P1749: Solenoid No. 3 Short To Power
- Test VER-1A: Verification Test
- Component Tests
- Removal & Installation
- Torque Specifications
- Wiring Diagrams
- Overhaul - 30RH & 32RH Automatic Transmission
- Application
- Identification
- Description
- Lubrication & Adjustments
- On-Vehicle Service
- Trouble Shooting
- Notes
- Symptom Diagnosis
- Notes
- Buzzing Noise
- Delayed Engagement From Neutral To Drive Or Reverse
- Drags Or Locks Up
- Growling, Grating Or Scraping Noise
- Harsh Engagement From Neutral To Drive Or Reverse
- Harsh 1-2 Or 2-3 Shifts
- No Forward Gear In Any Position (Reverse Is Okay)
- No Kickdown Or Abnormal Downshift
- No Low Gear (Moves In 2nd & 3rd Gears Only)
- No Reverse
- No Start In Park Or Neutral
- Shifts Delayed Or Erratic
- Slips In All Forward Gears
- Slips In Low Gear In Drive But Not In Low Gear ("1" Position)
- Slips In Reverse Only
- Torque Converter Locks Up In 2nd And/Or 3rd Gear
- Vehicle Moves In Neutral
- Vehicle Moves In 2nd Or 3rd Gear & Abruptly Downshifts To Low
- Whine Or Noise Related To Engine RPM
- Will Not Upshift From Low Gear
- 1st & Reverse Gears Only
- Performance Tests
- Removal & Installation
- Transmission Disassembly
- Component Disassembly & Reassembly
- Transmission Reassembly
- Torque Specifications
- Transmission Specifications
- Removal & Installation - Automatic Transmission
- Shift Interlock Systems
- 30RH & 32RH & 36RH & 37RH Automatic Transmission - Hydraulic Diagrams
- Transfer Case
- Overhaul - New Venture 231LD Transfer Case
- Overhaul - New Venture 242 Transfer Case
- Automatic Trans
- External Pages