93, Coolant Shutoff Valve
P1656
93, Coolant shutoff valve
Diagnosis conditions
- Ignition on
Possible cause of fault
- Short circuit to B+/ground or open circuit in the wire to the coolant shutoff valve
- Coolant shut-off valve faulty
- Tiptronic control unit faulty
Affected pins
Pins 51, 6, and 54
Diagnosis/troubleshooting