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7, Control Solenoid Valve For Shifting Pressure



P0778

7, 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