Diagnostic Trouble Code (DTC) List
WARNING: This page is about a different car, the 2002 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| C0550 | ECU Malfunction - Internal Write/Checksum Malfunction |
| C0551 | Option Configuration Error |
| C0575 | Suspension Damper Solenoid Circuit |
| C0580 | Suspension Damper Solenoid Circuit |
| C0585 | Suspension Damper Solenoid Circuit |
| C0590 | Suspension Damper Solenoid Circuit |
| C0615 | Left Front Position Sensor Malfunction |
| C0620 | Right Front Position Sensor Malfunction |
| C0625 | Left Rear Position Sensor Malfunction |
| C0630 | Right Rear Position Sensor Malfunction |
| C0690 | Damper Control Relay Circuit Malfunction |
| C0870 | Device Voltage Reference Output 1 Circuit Malfunction |