Body Diagnostic Procedures - Diagnostic Information And Procedures - HVAC, Ignition Power Accessory, Instrument Cluster, Interior Lighting, Navigation, Overhead Console
- Heating & A/C
- Symptom List: A/C SWITCH FAULT (ACTIVE) - MTC; CHECKSUM FAILURE (ACTIVE) - MTC; DEFOG SWITCH FAULT (ACTIVE) - MTC; LOOPBACK TEST FAILURE (ACTIVE) - MTC; POWER SWITCH FAULT (ACTIVE) - MTC; RECIRC SWITCH FAULT (ACTIVE) - MTC
- Symptom List: A/C SWITCH FAULT (STORED) - MTC; BACKLIGHT DIMMING RX FAILURE (STORED) - MTC; BLEND OVERCURRENT (STORED) - MTC; CHECKSUM FAILURE (STORED) - MTC; DEFOG SWITCH FAULT (STORED) - MTC; EVAPORATOR TEMPERATURE SENSOR CIRCUIT OPEN (STORED) - MTC; EVAPORATOR TEMPERATURE SENSOR CIRCUIT SHORT (STORED) - MTC; LOOPBACK TEST FAILURE (STORED) - MTC; MODE OVERCURRENT (STORED) - MTC; NO FUEL LEVEL MESSAGE RECEIVED (STORED) - MTC; PCM COMMUNICATION FAILURE (STORED) - MTC; POWER SWITCH FAULT (STORED) - MTC; RECIRC OVERCURRENT (STORED) - MTC; RECIRC SWITCH FAULT (STORED) - MTC; TX FAILURE (STORED) - MTC; VEHICLE ODOMETER FAILURE (STORED) - MTC; ZONE OVERCURRENT (STORED) - MTC
- Notes
- When Monitored and Set Condition:
- A/C Switch Fault (Stored) - MTC
- Backlight Dimming RX Failure (Stored) - MTC
- Blend OVERCURRENT (Stored) - MTC
- Checksum Failure (Stored) - MTC
- Defog Switch Fault (Stored) - MTC
- Evaporator Temperature Sensor Circuit Open (Stored) - MTC
- Evaporator Temperature Sensor Circuit Short (Stored) - MTC
- LOOPBACK Test Failure (Stored) - MTC
- Mode OVERCURRENT (Stored) - MTC
- No Fuel Level Message Received (Stored) - MTC
- Pcm Communication Failure (Stored) - MTC
- Power Switch Fault (Stored) - MTC
- RECIRC OVERCURRENT (Stored) - MTC
- RECIRC Switch Fault (Stored) - MTC
- TX Failure (Stored) - MTC
- Vehicle Odometer Failure (Stored) - MTC
- Zone OVERCURRENT (Stored) - MTC
- Possible Causes
- Diagnostic Procedure
- Symptom List: AC PRESSURE SENSOR FAULT (ACTIVE) - ATC; AC PRESSURE TOO HIGH - ATC; AC PRESSURE TOO LOW - ATC
- Symptom List: AC PRESSURE SENSOR FAULT (STORED) - ATC; BODY STATUS MESSAGE MISSING (STORED) - ATC; BOOT CHECKSUM ERROR (STORED) - ATC; CALIBRATION CHECKSUM ERROR (STORED) - ATC; COOLANT TEMPERATURE MESSAGE MISSING (STORED) - ATC; DISPLAY STATUS MESSAGE MISSING (STORED) - ATC; DRIVER BLEND DOOR NOT RESPONDING (STORED) - ATC; DRIVER BLEND DOOR TRAVEL TOO LARGE (STORED) - ATC; DRIVER BLEND DOOR TRAVEL TOO SMALL (STORED) - ATC; DRV FRONT DOOR MESSAGE MISSING (STORED) - ATC; ENGINE SENSORS MESSAGE MISSING (STORED) - ATC; EVAP TEMP SENSOR OPEN (STORED) - ATC; EVAP TEMP SENSOR SHORTED (STORED) - ATC; FRONT IR SENSOR CHANGE TOO LARGE (STORED) - ATC; FRONT IR SENSOR HIGH (STORED) - ATC; FRONT IR SENSOR LOW (STORED) - ATC; FRONT MODE DOOR NOT RESPONDING (STORED) - ATC; FRONT MODE DOOR TRAVEL TOO LARGE (STORED) - ATC; FRONT MODE DOOR TRAVEL TOO SMALL (STORED) - ATC; LEFT IR SENSOR NOT CALIBRATED (STORED) - ATC; LOOPBACK FAILURE (STORED) - ATC; NO COMMUNICATION WITH BCM (STORED) - ATC; NO COMMUNICATION WITH DDM (STORED) - ATC; NO COMMUNICATION WITH MIC (STORED) - ATC; NO COMMUNICATION WITH PCM (STORED) - ATC; NO COMMUNICATION WITH PDM (STORED) - ATC; OPS CHECKSUM ERROR (STORED) - ATC; OUTSIDE AIR TEMP MESSAGE MISSING (STORED) - ATC; PAS FRONT DOOR MESSAGE MISSING (STORED) - ATC; PASSENGER BLEND DOOR NOT RESPONDING (STORED) - ATC; PASSENGER BLEND DOOR TRAVEL TOO LARGE (STORED) - ATC; PASSENGER BLEND DOOR TRAVEL TOO SMALL (STORED) - ATC; PCI BUS SHORTED HIGH (STORED) - ATC; PCI BUS SHORTED LOW (STORED) - ATC; REAR FAN POT OPEN (STORED) - ATC; REAR FAN POT SHORTED (STORED) - ATC; RECIRC DOOR NOT RESPONDING (STORED) - ATC; RECIRC DOOR TRAVEL TOO LARGE (STORED) - ATC; RECIRC DOOR TRAVEL TOO SMALL (STORED) - ATC; REFRIGERANT PRESS MESSAGE MISSING (STORED) - ATC; RIGHT IR SENSOR NOT CALIBRATED (STORED) - ATC; VEHICLE ODOMETER MESSAGE MISSING (STORED) - ATC; VEHICLE SPEED/RPM MESSAGE MISSING (STORED) - ATC; VF DIMMING MESSAGE MISSING (STORED) - ATC; VIN MESSAGE MISSING (STORED) - ATC
- Notes
- When Monitored and Set Condition:
- Ac Pressure Sensor Fault (Stored) - ATC
- Body Status Message Missing (Stored) - ATC
- Boot Checksum Error (Stored) - ATC
- Calibration Checksum Error (Stored) - ATC
- Coolant Temperature Message Missing (Stored) - ATC
- Display Status Message Missing (Stored) - ATC
- Driver Blend Door Not Responding (Stored) - ATC
- Driver Blend Door Travel Too Large (Stored) - ATC
- Driver Blend Door Travel Too Small (Stored) - ATC
- DRV Front Door Message Missing (Stored) - ATC
- Engine Sensors Message Missing (Stored) - ATC
- EVAP Temp Sensor Open (Stored) - ATC
- EVAP Temp Sensor Shorted (Stored) - ATC
- Front Ir Sensor Change Too Large (Stored) - ATC
- Front Ir Sensor High (Stored) - ATC
- Front Ir Sensor Low (Stored) - ATC
- Front Mode Door Not Responding (Stored) - ATC
- Front Mode Door Travel Too Large (Stored) - ATC
- Front Mode Door Travel Too Small (Stored) - ATC
- Left Ir Sensor Not Calibrated (Stored) - ATC
- LOOPBACK Failure (Stored) - ATC
- No Communication With BCM (Stored) - ATC
- No Communication With DDM (Stored) - ATC
- No Communication With Mic (Stored) - ATC
- No Communication With Pcm (Stored) - ATC
- No Communication With PDM (Stored) - ATC
- Ops Checksum Error (Stored) - ATC
- Outside Air Temp Message Missing (Stored) - ATC
- Pas Front Door Message Missing (Stored) - ATC
- Passenger Blend Door Not Responding (Stored) - ATC
- Passenger Blend Door Travel Too Large (Stored) - ATC
- Passenger Blend Door Travel Too Small (Stored) - ATC
- PCI Bus Shorted High (Stored) - ATC
- PCI Bus Shorted Low (Stored) - ATC
- Rear Fan Pot Open (Stored) - ATC
- Rear Fan Pot Shorted (Stored) - ATC
- RECIRC Door Not Responding (Stored) - ATC
- RECIRC Door Travel Too Large (Stored) - ATC
- RECIRC Door Travel Too Small (Stored) - ATC
- Refrigerant Press Message Missing (Stored) - ATC
- Right Ir Sensor Not Calibrated (Stored) - ATC
- Vehicle Odometer Message Missing (Stored) - ATC
- Vehicle Speed/Rpm Message Missing (Stored) - ATC
- VF Dimming Message Missing (Stored) - ATC
- VIN Message Missing (Stored) - ATC
- Possible Causes
- Diagnostic Procedure
- Symptom: BACKLIGHT DIMMING RX FAILURE (ACTIVE) - MTC
- Symptom List: BLEND CALIBRATION FAULT - MTC; MODE CALIBRATION FAULT - MTC; RECIRCULATION CALIBRATION FAULT - MTC; ZONE CALIBRATION FAULT - MTC
- Symptom List: BLEND CIRCUIT SHORTED TO GROUND - MTC; BLEND CIRCUIT SHORTED TO IGN OR BATT - MTC; COMMON DRIVER SHORTED TO GROUND - MTC; COMMON DRIVER SHORTED TO IGN OR BATT - MTC; MODE CIRCUIT SHORTED TO GROUND - MTC; MODE CIRCUIT SHORTED TO IGN OR BATT - MTC; RECIRC CIRCUIT SHORTED TO GROUND - MTC; RECIRC CIRCUIT SHORTED TO IGN OR BATT - MTC; SHORT TOO COMPLEX - MTC; ZONE CIRCUIT SHORTED TO GROUND - MTC; ZONE CIRCUIT SHORTED TO IGN OR BATT - MTC
- Notes
- When Monitored and Set Condition:
- Blend Circuit Shorted To Ground - MTC
- Blend Circuit Shorted To IGN Or Batt - MTC
- Common Driver Shorted To Ground - MTC
- Common Driver Shorted To IGN Or Batt - MTC
- Mode Circuit Shorted To Ground - MTC
- Mode Circuit Shorted To IGN Or Batt - MTC
- RECIRC Circuit Shorted To Ground - MTC
- RECIRC Circuit Shorted To IGN Or Batt - MTC
- Short Too Complex - MTC
- Zone Circuit Shorted To Ground - MTC
- Zone Circuit Shorted To IGN Or Batt - MTC
- Possible Causes
- Diagnostic Procedure
- Symptom List: BLEND OVERCURRENT (ACTIVE) - MTC; MODE OVERCURRENT (ACTIVE) - MTC; RECIRC OVERCURRENT (ACTIVE) - MTC; ZONE OVERCURRENT (ACTIVE) - MTC
- Symptom: BLOWER NOT ON HIGH - MTC
- Symptom: BODY STATUS MESSAGE MISSING (ACTIVE) - ATC
- Symptom List: BOOT CHECKSUM ERROR (ACTIVE) - ATC; CALIBRATION CHECKSUM ERROR (ACTIVE) - ATC; FRONT IR SENSOR CHANGE TOO LARGE (ACTIVE) - ATC; FRONT IR SENSOR HIGH (ACTIVE) - ATC; FRONT IR SENSOR LOW (ACTIVE) - ATC; LEFT IR SENSOR NOT CALIBRATED (ACTIVE) - ATC; LOOPBACK FAILURE (ACTIVE) - ATC; OPS CHECKSUM ERROR (ACTIVE) - ATC; RIGHT IR SENSOR NOT CALIBRATED (ACTIVE) - ATC
- Notes
- When Monitored and Set Condition:
- Boot Checksum Error (Active) - ATC
- Calibration Checksum Error (Active) - ATC
- Front Ir Sensor Change Too Large (Active) - ATC
- Front Ir Sensor High (Active) - ATC
- Front Ir Sensor Low (Active) - ATC
- Left Ir Sensor Not Calibrated (Active) - ATC
- LOOPBACK Failure (Active) - ATC
- Ops Checksum Error (Active) - ATC
- Right Ir Sensor Not Calibrated (Active) - ATC
- Possible Causes
- Diagnostic Procedure
- Symptom: COOLANT TEMPERATURE MESSAGE MISSING (ACTIVE) - ATC
- Symptom List: COOLDOWN TEST FAILED - ATC; COOLDOWN TIME EXCESSIVE FAULT - ATC
- Symptom List: COOLDOWN TEST SENSOR FAILURE - MTC; COOLDOWN TIME EXCESSIVE FAULT - MTC
- Symptom: COOLDOWN TEST TOO COLD TO START - MTC
- Symptom: DISPLAY STATUS MESSAGE MISSING (ACTIVE) - ATC
- Symptom List: DRIVER BLEND DOOR NOT RESPONDING (ACTIVE) - ATC; FRONT MODE DOOR NOT RESPONDING (ACTIVE) - ATC; PASSENGER BLEND DOOR NOT RESPONDING (ACTIVE) - ATC; RECIRC DOOR NOT RESPONDING (ACTIVE) - ATC
- Symptom List: DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE) - ATC; FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE) - ATC; PASSENGER BLEND DOOR TRAVEL TOO LARGE (ACTIVE) - ATC; RECIRC DOOR TRAVEL TOO LARGE (ACTIVE) - ATC
- Symptom: DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE) - ATC
- Symptom: DRV FRONT DOOR MESSAGE MISSING (ACTIVE) - ATC
- Symptom: ENGINE SENSORS MESSAGE MISSING (ACTIVE) - ATC
- Symptom: EVAP TEMP SENSOR OPEN (ACTIVE) - ATC
- Symptom: EVAP TEMP SENSOR SHORTED (ACTIVE) - ATC
- Symptom: EVAPORATOR TEMPERATURE SENSOR CIRCUIT OPEN (ACTIVE) - MTC
- Symptom: EVAPORATOR TEMPERATURE SENSOR CIRCUIT SHORT (ACTIVE) - MTC
- Symptom: FRONT BLOWER RELAY OPEN
- Symptom: FRONT BLOWER RELAY SHORT TO BATT
- Symptom: FRONT MODE DOOR TRAVEL TOO SMALL (ACTIVE) - ATC
- Symptom: INVALID CONDITIONS FOR COOLDOWN TEST, EVAP TEMPERATURE TOO LOW - ATC
- Symptom List: NO COMMUNICATION WITH BCM (ACTIVE) - ATC; NO COMMUNICATION WITH DDM (ACTIVE) - ATC; NO COMMUNICATION WITH MIC (ACTIVE) - ATC; NO COMMUNICATION WITH PCM (ACTIVE) - ATC; NO COMMUNICATION WITH PDM (ACTIVE) - ATC
- Symptom List: NO FUEL LEVEL MESSAGE RECEIVED (ACTIVE) - MTC; PCM COMMUNICATION FAILURE (ACTIVE) - MTC
- Symptom: OUTSIDE AIR TEMP MESSAGE MISSING (ACTIVE) - ATC
- Symptom: PAS FRONT DOOR MESSAGE MISSING (ACTIVE) - ATC
- Symptom: PASSENGER BLEND DOOR TRAVEL TOO SMALL (ACTIVE) - ATC
- Symptom List: PCI BUS SHORTED HIGH (ACTIVE) - ATC; PCI BUS SHORTED LOW (ACTIVE) - ATC
- Symptom: REAR BOOSTER FAN RELAY OPEN - ATC
- Symptom: REAR BOOSTER FAN RELAY SHORT TO BATT - ATC
- Symptom: REAR FAN POT OPEN (ACTIVE) - ATC
- Symptom: REAR FAN POT SHORTED (ACTIVE) - ATC
- Symptom: RECIRC DOOR TRAVEL TOO SMALL (ACTIVE) - ATC
- Symptom: REFRIGERANT PRESS MESSAGE MISSING (ACTIVE) - ATC
- Symptom: TX FAILURE (ACTIVE) - MTC
- Symptom: VEHICLE ODOMETER FAILURE (ACTIVE) - MTC
- Symptom: VEHICLE ODOMETER MESSAGE MISSING (ACTIVE) - ATC
- Symptom: VEHICLE SPEED/RPM MESSAGE MISSING (ACTIVE) - ATC
- Symptom: VF DIMMING MESSAGE MISSING (ACTIVE) - ATC
- Symptom: VIN MESSAGE MISSING (ACTIVE) - ATC
- Symptom: *A/C HEATER CONTROL ILLUMINATION INOPERATIVE - MTC
- Symptom List: *A/C STATUS INDICATOR FLASHING - MTC; *RECIRC STATUS INDICATOR FLASHING - MTC
- Symptom: *AUTOMATIC TEMPERATURE CONTROL (ATC) BACK LIGHTING INOPERATIVE
- Symptom: *BLEND/MODE/RECIRC DOOR OPERATION IMPROPER - MTC
- Symptom: *BLOWER MOTOR INOPERATIVE - MTC
- Symptom: *BLOWER SPEED DOES NOT CORRESPOND WITH CONTROL SETTING - MTC
- Symptom: *FRONT BLOWER MOTOR INOPERATIVE - ATC
- Symptom: *FRONT BLOWER RUNS AT ONLY ONE SPEED - ATC
- Symptom: *HVAC SYSTEM TEST - ATC
- Symptom: *HVAC SYSTEM TEST - MTC
- Symptom: *OUTSIDE AIR TEMPERATURE DISPLAY INACCURATE OR INOPERATIVE - ATC
- Symptom: *REAR BOOSTER FAN INOPERATIVE - ATC
- Symptom: *REAR BOOSTER FAN REAR CONTROL SWITCH BACK LIGHTING INOPERATIVE - ATC
- Symptom: *REAR BOOSTER FAN REAR CONTROL SWITCH ON INDICATOR INOPERATIVE - ATC
- Symptom: *REAR BOOSTER FAN RUNS AT ONLY ONE SPEED - ATC
- Symptom: *REAR MODE DOOR INOPERATIVE - ATC
- Symptom: *VF SEGMENT(S)/LED(S) INOPERATIVE OR WILL NOT DIM - ATC
- Ignition, Power, Accessory
- Symptom: BCM IGNITION MUX ERROR - IPM
- Symptom: BCM IOD FUSE OPEN - BCM
- Symptom: BTSI OUTPUT OPEN / SHORT TO VOLTAGE - IPM
- Symptom: BTSI OUTPUT SHORT TO GROUND - IPM
- Symptom: CLUSTER WAKEUP OUTPUT SHORT - BCM
- Symptom: DDM BATTERY VOLTS LOW - DDM
- Symptom: DOOR NODE POWER RELAY OPEN - IPM
- Symptom: DOOR NODE POWER RELAY SHORT TO BATTERY - IPM
- Symptom: HORN INPUT STUCK - IPM
- Symptom: HORN RELAY CONTROL CIRCUIT OPEN - IPM
- Symptom: HORN RELAY CONTROL CIRCUIT SHORT TO BATTERY - IPM
- Symptom: IGNITION MUX SWITCH INPUT OPEN - BCM
- Symptom: IGNITION MUX SWITCH INPUT SHORT - BCM
- Symptom: IGNITION RUN/START INPUT MISMATCH - IPM
- Symptom: IGNITION START INPUT MISMATCH - IPM
- Symptom: PDM BATTERY VOLTS LOW - PDM
- Symptom: RUN ONLY RELAY OPEN - IPM
- Symptom: RUN ONLY RELAY SHORT TO BATTERY - IPM
- Symptom: RUN/ACCESSORY RELAY OPEN - IPM
- Symptom: RUN/ACCESSORY RELAY SHORT TO BATTERY - IPM
- Symptom: RUN/START HARDWIRE FAILURE - BCM
- Symptom: TRANS IGNITION FEED OPEN OR SHORT TO BATT - IPM
- Symptom: TRANS IGNITION FEED SHORT TO GND - IPM
- Symptom: *HORNS INOPERATIVE
- Instrument Cluster
- Symptom List: ABS INDICATOR OPEN; ABS INDICATOR SHORT; AIRBAG INDICATOR OPEN; AIRBAG INDICATOR SHORT
- Symptom List: ABS MESSAGES NOT RECEIVED; BCM MESSAGES NOT RECEIVED; CMTC MESSAGES NOT RECEIVED; DDM MESSAGE NOT RECEIVED; IPM MESSAGES NOT RECEIVED; NAV MESSAGES NOT RECEIVED; ORC MESSAGES NOT RECEIVED; PCM MESSAGES NOT RECEIVED; PDM MESSAGE NOT RECEIVED; SKREEM MESSAGE NOT RECEIVED; TCM MESSAGES NOT RECEIVED
- Symptom List: EEPROM ERASE FAILURE; EEPROM WRITE FAILURE; INTERNAL CLUSTER FAILURE; INTERNAL HARDWARE FAILURE
- Symptom: EVIC SWITCH INPUT CIRCUIT OPEN
- Symptom: EVIC SWITCH INPUT CIRCUIT SHORT
- Symptom: EVIC SWITCH INPUT STUCK
- Symptom: FUEL SENSOR 1 OPEN - BCM
- Symptom: FUEL SENSOR 1 SHORT - BCM
- Symptom: FUEL SENSOR 2 OPEN - BCM
- Symptom: FUEL SENSOR 2 SHORT - BCM
- Symptom: INCORRECT ODOMETER VALUE
- Symptom: LEFT TURN SIGNAL INDICATOR OPEN - BCM
- Symptom: LEFT TURN SIGNAL INDICATOR SHORT - BCM
- Symptom: NAV SWITCH INPUT CIRCUIT OPEN
- Symptom: NAV SWITCH INPUT CIRCUIT SHORT
- Symptom: NAV SWITCH INPUT STUCK
- Symptom: PWM DIMMING OUTPUT FAILURE
- Symptom: RIGHT TURN SIGNAL INDICATOR OPEN - BCM
- Symptom: RIGHT TURN SIGNAL INDICATOR SHORT - BCM
- Symptom: TRACTION CONTROL SWITCH STUCK - BCM
- Interior Lighting
- Symptom: BCM-COURTESY LAMP 1 OUTPUT SHORT
- Symptom: BCM-COURTESY LAMP 2 OUTPUT SHORT
- Symptom: DOME SWITCH INPUT OPEN-BCM
- Symptom: DOME SWITCH INPUT SHORT-BCM
- Symptom: READING LAMP OUTPUT SHORT-BCM
- Symptom: SEAT SWITCH ILLUMINATION OUTPUT SHORT TO BATTERY - DDM
- Symptom: SEAT SWITCH ILLUMINATION OUTPUT SHORT TO BATTERY - PDM
- Symptom: SEAT SWITCH ILLUMINATION OUTPUT SHORT TO GROUND - DDM
- Symptom: SEAT SWITCH ILLUMINATION OUTPUT SHORT TO GROUND - PDM
- Navigation
- Symptom: AMP MESSAGES NOT RECEIVED
- Symptom: BCM MESSAGES NOT RECEIVED
- Symptom: DISC READ ERROR
- Symptom: GPS ANTENNA DISCONNECT
- Symptom: INTERNAL NAV MODULE FAILURE
- Symptom: MIC MESSAGES NOT RECEIVED
- Symptom: NAV SYSTEM OVER TEMP
- Symptom List: NO PCI BUS TRANSMISSION; PCI BUS SHORTED TO BATTERY; PCI BUS SHORTED TO GROUND
- Symptom: PCM MESSAGES NOT RECEIVED
- Symptom: TCM MESSAGES NOT RECEIVED
- Overhead Console