Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
- The IMS is part of a wire harness, which connects electrically to the control solenoid (w/body and TCM) valve assembly and is serviced separately from the control solenoid (w/body and TCM) valve assembly. Inspect the IMS, harness, connector, and control solenoid (w/body and TCM) valve assembly pins for metallic debris. Use the J 35616 GM-approved terminal test kit for any test that requires probing the control solenoid (w/body and TCM) valve assembly harness connector or a component harness connector.
- Inspect for a incorrectly adjusted range selector lever cable. Refer to Shift Control Linkage Adjustment .
- Inspect the manual shaft detent assembly for proper alignment with the manual shaft detent lever. The manual shaft detent roller must be centered over the detent lever and not contact the IMS actuator arm.