Diagnostic System Check
NOTE:
DTCs that begin with "U" indicate some other module is not communicating.
- Connect scan tool to DLC. If scan tool powers up, go to next step. If scan tool does not power up, see appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
- Turn ignition switch on, with engine off. Attempt to establish communication with the following modules:
- Electronic Suspension Control Module (ESC or CVRSS)
- Electronic Brake Control Module (EBCM)
- Powertrain Control Module (PCM)
- Rear Integration Module (RIM)
- Select display DTCs function on scan tool for the following modules:
- Electronic Suspension Control Module (ESC or CVRSS)
- Electronic Brake Control Module (EBCM)
- Powertrain Control Module (PCM)
- Rear Integration Module (RIM)
- If scan tool displays any DTCs that begin with "U", see appropriate MODULE COMMUNICATIONS NETWORK article in ACCESSORIES & EQUIPMENT. If scan tool does not display any DTCs that begin with "U", go to next step.
- If scan tool displays any PCM DTCs, see DIAGNOSTIC TROUBLE CODE DEFINITIONS table. If scan tool does not display any PCM DTCs, go to next step.
- If scan tool displays any EBCM DTCs, see appropriate ANTI-LOCK/TCS article. If scan tool does not display any EBCM DTCs, go to next step.
- If scan tool displays DTC C0550, go to DTC C0550: CONTROL MODULE MALFUNCTION . If scan tool does not display DTC C0550, go to next step.
- If scan tool displays DTC C0563, go to DTC C0563: CALIBRATION ROM CHECKSUM ERROR . If scan tool does not display DTC C0563, go to next step.
- If scan tool displays DTC C0695 or C0696, go to DTC C0695 OR C0696: POSITION SENSOR OVERCURRENT . If scan tool does not display DTC C0695 or C0696, go to next step.
- If scan tool displays DTC C0896, go to DTC C0896: DEVICE VOLTAGE RANGE/PERFORMANCE . If scan tool does not display DTC C0896, go to DIAGNOSTIC TROUBLE CODE DEFINITIONS table.
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| Code | Description |
|---|---|
| No RSS Data | Loss Of Serial Communications Or Power (Go To TEST A ) |
| C0550 | Control Module Malfunction |
| C0563 | Calibration ROM Checksum Error |
| C0577 | Left Front Solenoid Circuit Low |
| C0578 | Left Front Solenoid Circuit High |
| C0579 | Left Front Solenoid Circuit Open |
| C0582 | Right Front Solenoid Circuit Low |
| C0583 | Right Front Solenoid Circuit High |
| C0584 | Right Front Solenoid Circuit Open |
| C0587 | Left Rear Solenoid Circuit Low |
| C0588 | Left Rear Solenoid Circuit High |
| C0589 | Left Rear Solenoid Circuit Open |
| C0592 | Right Rear Solenoid Circuit Low |
| C0593 | Right Rear Solenoid Circuit High |
| C0594 | Right Rear Solenoid Circuit Open |
| C0615 | Left Front Position Sensor Malfunction |
| C0620 | Right Front Position Sensor Malfunction |
| C0625 | Left Rear Position Sensor Malfunction |
| C0630 | Right Rear Position Sensor Malfunction |
| C0635 (2000) | Left Front Normal Force Circuit Malfunction |
| C0635 (2001) | Left Front Normal Force Circuit Malfunction |
| C0638 (2000) | Left Front Normal Force Circuit High |
| C0638 (2001) | Left Front Normal Force Circuit High |
| C0640 (2000) | Right Front Normal Force Circuit Malfunction |
| C0640 (2001) | Right Front Normal Force Circuit Malfunction |
| C0643 (2000) | Right Front Normal Force Circuit High |
| C0643 (2001) | Right Front Normal Force Circuit High |
| C0657 | Level Control Compressor Circuit Low |
| C0658 | Level Control Compressor Circuit High |
| C0662 | Level Control Exhaust Valve Circuit Low |
| C0663 | Level Control Exhaust Valve Circuit High |
| C0665 | Chassis Pitch Signal Circuit |
| C0690 | Damper Control Relay Circuit Malfunction |
| C0691 | Damper Control Relay Circuit Range |
| C0693 | Damper Control Relay Circuit High |
| C0695 | Position Sensor Overcurrent (5-Volt Supply) |
| C0696 | Position Sensor Overcurrent (8-Volt Supply) |
| C0710 | Steering Position Signal Malfunction |
| C0896 | Device Voltage Range/Performance |
| C1252 | Normal Force Circuit Malfunction |
| C1253 | Normal Force Circuit Malfunction |