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Tiptronic System G100, G101, G102, G110

P0778

Control solenoid valve for shifting pressure


Fault states are detected in the wiring, the output stage and the valve itself.

Diagnostic conditions
- Vehicle is driven with gear changes

Possible cause of fault
- Short circuit to B+/ground or open circuit
- Control solenoid valve for shifting pressure is faulty
- Tiptronic control module faulty

Affected pins
Connector A: Pin 37 and pin 38

Diagnosis/troubleshooting