Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Engine ON, verify the transmission fluid temperature is between 50-80°C (122-176°F).
- Operate the vehicle long enough to verify at least a 3°C (5°F) rise in TCM temperature parameter, then operate the vehicle in Park for 5 seconds.
- Engine ON, observe the scan tool Line PC Sol. CKT Status parameter. The reading should display OK or Indeterminate.
- If the reading is not within the specified range, replace the control solenoid valve assembly.