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Torque Converter Diagnosis > < DTC P0657

Astra J

Control Solenoid Valve Inspection (M36 and MXE)



2019041


The torque converter stator roller clutch can have two different malfunctions.

1. Inspect the control solenoid (w/body and TCM) valve assembly connectors and pins (A, B, C) for the following conditions:
  •  Damage
  •  Bent pins
  •  Debris
  •  Broken retaining tab
  •  Contamination
2. Ensure no metallic debris is inside the connectors near the terminal pins.
3. Inspect the control solenoid (w/body and TCM) valve assembly solenoid leads for contamination or metallic debris.
4. Inspect for oil leakage from any of the gaskets.

Torque Converter Diagnosis > < DTC P0657