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Home >> Cadillac >> 2001 >> DeVille Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Modules >> Diagnostic System Checks >> Body Control System Diagnostic System Check

Body Control System Diagnostic System Check

  1. Begin diagnosis of body control system by performing appropriate diagnostic system check for system in which symptom and customer concern is apparent. See DIAGNOSTIC SYSTEM CHECK  table. Go to next step.
  2. Connect scan tool to Data Link Connector (DLC). See Figure. If scan tool powers up, go to next step. If scan tool does not power up, go to TEST A: SCAN TOOL DOES NOT POWER UP  under SYSTEM TESTS.
  3. Turn ignition on. Try to establish communication with Dash Integration Module (DIM), Instrument Panel Module (IPM) and Rear Integration Module (RIM). If scan tool communicates with all 3 modules, go to next step. If scan tool does not communicate with all 3 modules, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS.
  4. Choose display DTCs function on scan tool for DIM, IPM and RIM. If scan tool displays any DTCs for these modules, go to next step. If scan tool does not display any DTCs for these modules, try to diagnose malfunctioning system or device by symptom. Go to appropriate article for malfunctioning system or device.
  5. If scan tool does not display any DTCs that begin with "U", go to next step. If scan tool displays any DTCs that begin with "U", go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS.
  6. If scan tool does not display any DTCs listed, go to next step. If scan tool displays DTC B1000, B1004, B1007, B1009, B1656 or B1658, go to DIAGNOSTIC TROUBLE CODE DEFINITIONS .
  7. If scan tool displays DTC B1327 or B1328, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in GENERATORS & REGULATORS - DEVILLE article in STARTING & CHARGING SYSTEMS. If scan tool does not display any DTCs listed, try to diagnose malfunctioning system or device by symptom. Go to appropriate article for malfunctioning system or device.
    DIAGNOSTIC SYSTEM CHECK

    System Perform Test
    Air Bag INFLATABLE RESTRAINT SENSING & DIAGNOSTIC MODULE DIAGNOSTIC SYSTEM CHECK 
    Anti-Lock Brake ELECTRONIC BRAKE CONTROL MODULE DIAGNOSTIC SYSTEM CHECK 
    Audible Warnings AUDIBLE WARNINGS DIAGNOSTIC SYSTEM CHECK 
    Automatic Air Conditioning HVAC CONTROL MODULE DIAGNOSTIC SYSTEM CHECK 
    Automatic Level Control With F45 Suspension AUTOMATIC LEVEL CONTROL WITH RPO CODE F45 DIAGNOSTIC SYSTEM CHECK 
    Automatic Level Control Without F45 Suspension AUTOMATIC LEVEL CONTROL WITHOUT F45 DIAGNOSTIC SYSTEM CHECK 
    Automatic Transmission Shift Lock Control AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL DIAGNOSTIC SYSTEM CHECK 
    Cruise Control CRUISE CONTROL DIAGNOSTIC SYSTEM CHECK 
    Cellular Communication CELLULAR TELEPHONE MODULE DIAGNOSTIC SYSTEM CHECK 
    Body Rear End BODY REAR END DIAGNOSTIC SYSTEM CHECK 
    Defogger DEFOGGER DIAGNOSTIC SYSTEM CHECK 
    Doors DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK 
    Electronic Steering Column STEERING COLUMN MODULE SYSTEM DIAGNOSTIC CHECK 
    Engine Controls POWERTRAIN CONTROL MODULE DIAGNOSTIC SYSTEM CHECK 
    Engine Cooling ENGINE COOLING DIAGNOSTIC SYSTEM CHECK 
    Engine Electrical ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK 
    Horns HORNS DIAGNOSTIC SYSTEM CHECK 
    Hydraulic Brakes HYDRAULIC BRAKES DIAGNOSTIC SYSTEM CHECK 
    Instrument Cluster INSTRUMENT PANEL CLUSTER MODULE DIAGNOSTIC SYSTEM CHECK 
    Lighting Systems LIGHTING SYSTEMS DIAGNOSTIC SYSTEM CHECK 
    OnStar(R) NAVIGATION SYSTEMS DIAGNOSTIC SYSTEM CHECK 
    Parking Brake PARKING BRAKE DIAGNOSTIC SYSTEM CHECK 
    Power Seats POWER SEAT SYSTEMS DIAGNOSTIC SYSTEM CHECK 
    Power Sunroof POWER SUNROOF DIAGNOSTIC SYSTEM CHECK 
    Powertrain On Board Diagnostic (OBD) - Automatic Transmission POWERTRAIN ON BOARD DIAGNOSTIC SYSTEM CHECK - AUTOMATIC TRANSMISSION 
    Radio/Audio RADIO/AUDIO SYSTEM DIAGNOSTIC CHECK 
    Remote Keyless Entry REMOTE CONTROL DOOR LOCK RECEIVER SYSTEM DIAGNOSTIC CHECK 
    Retained Accessory Power RETAINED ACCESSORY POWER SYSTEM DIAGNOSTIC CHECK 
    Road Sensing Suspension ROAD SENSING SUSPENSION DIAGNOSTIC SYSTEM CHECK 
    Seat Belts SEAT BELTS DIAGNOSTIC SYSTEM CHECK 
    Theft Deterrent THEFT DETERRENT MODULE DIAGNOSTIC SYSTEM CHECK 
    Tire Pressure Monitoring TIRE PRESSURE MONITORING DIAGNOSTIC SYSTEM CHECK 
    Variable Effort Steering VARIABLE EFFORT STEERING DIAGNOSTIC SYSTEM CHECK