Engine Controls - Tests W/Codes - 4.3L

• Introduction
• Self-Diagnostic System
  • Notes
  • Hard Failures
  • Intermittent Failures
  • DTC Info Mode
  • DTC Status
  • Fail This IGN.
  • History
  • Last Test Fail
  • Mil Request
  • Not Run SCC
  • Test Fail SCC
  • Failed Since Clear
  • Not Run Since Cl.
  • Not Run This IGN.
  • Test Ran And Passed
  • Diagnostic Procedure
  • Reading Trouble Codes
  • Trouble Code Definition
  • Hard Or Intermittent Trouble Code Determination
  • Clearing Diagnostic Trouble Codes
  • Pcm/VCM Location
  • Diagnostic Materials
    • Diagnostic Aids
  • Special Tools (Diagnostic)
  • Scan Tool Usage
  • Scan Data
• Specifications
• Connector Identification
  • VCM Connectors
    • C1
    • C2
    • C3
    • C4
• Summary
• Diagnostic Trouble Codes
  • Notes
  • DTC P0101 - MAF Sensor System Performance
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
    • Check for vacuum leaks at following locations:
  • DTC P0102 - MAF Sensor Circuit Low Frequency
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
    • Check for vacuum leaks at following locations:
  • DTC P0103 - MAF Sensor Circuit High Frequency
    • Notes
    • Circuit Description
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0106 - Map Sensor System Performance
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0107 - Map Sensor Circuit Low Voltage
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0108 - Map Sensor Circuit High Voltage
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0112 - IAT Sensor Circuit Low Voltage
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0113 - IAT Sensor Circuit High Voltage
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0117 - ECT Sensor Circuit Low Voltage
    • Circuit Description
    • Condition required to test for DTC:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0118 - ECT Sensor Circuit High Voltage
    • Notes
    • Circuit Description
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0121 - TP Sensor System Performance
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0122 - TP Sensor Circuit Low Voltage
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0123 - TP Sensor Circuit High Voltage
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0125 - ECT Excessive Time To Reach Closed Loop
    • Notes
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0131 - Ho2S Circuit Low Voltage Bank 1, Sensor 1
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0132 - Ho2S Circuit High Voltage Bank 1, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0133 - Ho2S Slow Response Bank 1, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0134 - Ho2S Insufficient Activity Bank 1, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0135 - Ho2S Heater Circuit Bank 1, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0137 - Ho2S Circuit Low Voltage Bank 1, Sensor 2
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0138 - Ho2S Circuit High Voltage Bank 1, Sensor 2
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0140 - Ho2S Insufficient Activity Bank 1, Sensor 2
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0141 - Ho2S Heater Circuit Bank 1, Sensor 2
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0143 - Ho2S Circuit Low Voltage Bank 1, Sensor 3
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0144 - Ho2S Circuit High Voltage Bank 1, Sensor 3
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0146 - Ho2S Insufficient Activity Bank 1, Sensor 3
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0147 - Ho2S Heater Circuit Bank 1, Sensor 3
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0151 - Ho2S Circuit Low Voltage Bank 2, Sensor 1
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0152 - Ho2S Circuit High Voltage Bank 2, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0153 - Ho2S Slow Response Bank 2, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0154 - Ho2S Insufficient Activity Bank 2, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0155 - Ho2S Heater Circuit Bank 2, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0171 - Fuel Trim System Lean Bank 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0172 - Fuel Trim System Rich Bank 1
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0174 - Fuel Trim System Lean Bank 2
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0175 - Fuel Trim System Rich Bank 2
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0300 - Engine Misfire Detected
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0301 - Cylinder No. 1 Misfire Detected
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0302 - Cylinder No. 2 Misfire Detected
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0303 - Cylinder No. 3 Misfire Detected
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0304 - Cylinder No. 4 Misfire Detected
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0305 - Cylinder No. 5 Misfire Detected
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0306 - Cylinder No. 6 Misfire Detected
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0325 - Knock Sensor Module Circuit
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0327 - Knock Sensor Low Voltage
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0336 - Crankshaft Position Sensor Circuit Performance
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0337 - Crankshaft Position Sensor Circuit Low Frequency
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0338 - Crankshaft Position Sensor Circuit High Frequency
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0339 - Crankshaft Position Sensor Circuit Intermittent
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0340 - Camshaft Position Sensor Circuit
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0341 - Camshaft Position Sensor Circuit
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0401 - EGR System Insufficient Flow
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0420 - TWC System Low Efficiency Bank 1
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0440 - EVAP System
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0442 - EVAP System Small Leak Detected
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0446 - EVAP System Canister Vent Blocked
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0461 - Fuel Level Sensor Circuit Malfunction
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
  • DTC P0463 - Fuel Level Sensor Circuit Low Voltage
    • Notes
    • Circuit Description
    • DTC will test when the following conditions are present:
    • Diagnostic Procedures
  • DTC P0500 - Vehicle Speed Sensor Circuit
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0506 - Idle Speed Low Idle Air Control Responding
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P0507 - Idle Speed High Idle Air Control Responding
    • Notes
    • Circuit Description
    • Conditions required to test for DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1106 - Map Sensor Circuit Intermittent High Voltage
    • Notes
    • Circuit Description
    • DTC will set when the following conditions are present:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1107 - Map Sensor Circuit Intermittent Low Voltage
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1111 - IAT Sensor Circuit Intermittent High Voltage
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1112 - IAT Sensor Circuit Intermittent Low Voltage
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1114 - ECT Sensor Circuit Intermittent Low Voltage
    • Notes
    • Circuit Description
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1115 - ECT Sensor Circuit Intermittent High Voltage
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1121 - TP Sensor Circuit Intermittent High Voltage
    • Notes
    • Circuit Description
    • Condition required to set DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1122 - TP Sensor Circuit Intermittent Low Voltage
    • Notes
    • Circuit Description
    • Condition required to test for DTC is:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1133 - Ho2S Insufficient Switching Bank 1, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1134 - Ho2S Transition Time Ratio Bank 1, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1153 - Ho2S Insufficient Switching Bank 2, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1154 - Ho2S Transition Time Ratio Bank 2, Sensor 1
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1345 - Crankshaft/Camshaft Position Sensor Correlation
    • Notes
    • Circuit Description
    • Condition required to set DTC is:
    • Diagnostic Procedures
  • DTC P1351 - Ignition Control Circuit High Voltage
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1361 - Ignition Control Circuit Low Voltage
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1406 - EGR Valve Pintle Position Circuit
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1441 - EVAP System Flow During Non-Purge
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1508 - IAC System Low Rpm
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1509 - IAC System High Rpm
    • Notes
    • Circuit Description
    • Conditions required to set DTC are:
    • Diagnostic Procedures
    • Diagnostic Aids
  • DTC P1675 - EVAP Vent Solenoid Control Circuit
    • Notes
    • Circuit Description
    • Diagnostic Procedures
    • Diagnostic Aids