P1704

P1704

Power Supply For Solenoid Valves And Pressure Regulators, Electric Fault

Diagnostic conditions:
- Ignition on
- Internal function test completed

Possible fault causes:
- Short circuit to B+/ground/between lines or open circuit
- Control module faulty

Fault reaction:
- A warning is displayed in the instrument cluster.
- The transmission is shifted into mechanical limp home mode, i.e.:
- The pressure adjuster and solenoid valves are switched off.
- This opens the torque converter lockup clutch and 4th gear is firmly selected.
- The gear display shows 4th gear.