93, Coolant Shutoff Valve

P1656

93, Coolant shutoff valve

Diagnostic 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