Circuit/System Verification
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify the scan tool Engine Coolant Temperature parameter was less than 125°C (257°F) when DTC set by reviewing the scan tool Freeze Frame/Failure Records.
- If 125°C (257°F) or greater
Refer to Engine Overheating .
- If less than 125°C (257°F)
- If 125°C (257°F) or greater
- Verify the scan tool TCM Temperature parameter is less than 146°C (295°F).
- If 146°C (295°F) or greater
Replace the Q8 Control Solenoid Valve assembly.
- If less than 146°C (295°F)
- If 146°C (295°F) or greater
- Verify the transmission fluid level and condition is correct. Refer to Transmission Fluid Level and Condition Check .
- If the transmission fluid level and condition is not correct
Repair as necessary.
- If the transmission fluid level and condition is correct
- If the transmission fluid level and condition is not correct
- Clear the TCM DTCs with a scan tool.
- Operate the vehicle until normal engine temperature is reached.
- Verify the scan tool Transmission Fluid Temperature parameter is less than 140°C (284°F).
- If 140°C (284°F) or greater
- Ignition OFF.
- Verify the conditions listed below do not exist:
- Obstructions to the airflow to the radiator or transmission
- Radiator damage
- Transmission cooler damage
- Transmission cooler pipe kinked or damaged
- If a condition exists, repair or replace as necessary.
- If none of the conditions exist, refer to Transmission Fluid Cooler Flushing and Flow Test .
- If less than 140°C (284°F)
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- Verify the DTC does not set.
- If the DTC sets
Replace the Q8 Control Solenoid Valve Assembly.
- If the DTC does not set
- If the DTC sets
- All OK.