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