Circuit/System Testing
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Perform the Range Selector Lever Cable Adjustment procedure to verify proper adjustment.
- Ignition OFF, remove the control valve body cover. Refer to Control Valve Body Cover Replacement .
- Connect the TCM harness connector.
- Disconnect the IMS connector at the control solenoid (w/body and TCM) valve assembly.
- Ignition ON, verify the scan tool IMS A/B/C/P parameter displays HI for all four signal circuits.
- If not the specified value, replace the control solenoid (w/body and TCM) valve assembly.
- Connect a 3-amp fused jumper wire between each transmission range signal circuit terminal listed below and the IMS ground circuit, terminal A. The appropriate scan tool IMS A/B/C/P parameter should display LOW when the terminal is connected to the IMS ground.
- Switch Signal A terminal E
- Switch Signal B terminal D
- Switch Signal C terminal C
- Switch Signal P terminal B
- If not the specified value, replace the control solenoid (w/body and TCM) valve assembly.
- If all circuits test normal, test or replace the IMS.
NOTE:
Do not connect an external voltage to any control solenoid (w/body and TCM) valve assembly terminal, and avoid the inadvertent shorting of terminals.