Control Solenoid Valve and Transmission Control Module Assembly Inspection

Fig 1: Identifying Control Solenoid Valve & Transmission Control Module Assembly

Courtesy of GENERAL MOTORS COMPANY

1. Inspect the control solenoid (w/body and TCM) valve assembly connectors and pins (2, 3, 4) 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 (1) for contamination or metallic debris.
4. Inspect the 4 control solenoid (w/body and TCM) valve assembly filter plate retaining tabs (5) for cracks and ensure proper tension when filter plate is attached.