Control module and output signals
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE P0600-P0688
| SAE-DTC | DTC text | Corrective action |
|---|---|---|
| P0600 | Serial Communication Link |
|
| P0601 | Internal Control Module Memory Check Sum Error |
|
| P0602 | Control Module Programming Error |
|
| P0604 | Internal Control Module Random Access Memory (RAM) Error |
|
| P0606 | ECM/PCM Processor | |
| P0638 | Throttle Actuator Control Range/Performance, Bank 1 |
|
| P0685 | ECM/PCM Power Relay Control Circuit/Open |
|
| P0686 | ECM/PCM Power Relay Control Circuit Low | |
| P0687 | ECM/PCM Power Relay Control Circuit High | |
| P0688 | ECM/PCM Power Relay Sense Circuit/Open |