DTC 17072
SAE VAG Description
P0688 17072 ECM/PCM Power Relay Sense Circuit /Open
J220 - Motronic Engine Control Module (ECM)
- Engine Control Module (ECM) replacing.
Note: Check activation of power supply relay -J271- according to wiring diagram.
- Voltage supply for Engine Control Module (ECM) checking. Voltage Supply For Engine Control Module (ECM), Checking