Circuit/System Verification
WARNING: This page is about a different car, the 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On / Vehicle - In Service Mode
- Verify the scan tool Freeze Frame/Failure Records parameter : Engine Coolant Temperature = Colder than 125°C (257°F)
- If 125°C (257°F) or warmer
Refer to : Engine Overheating
- Go to next step : If colder than 125°C (257°F)
- If 125°C (257°F) or warmer
- Verify the scan tool parameter : TCM Temperature = -39 to 139°C (-38 to 282°F)
- If not between -39 and 139°C (-38 and 282°F)
Replace the component : Q8 Control Solenoid Valve Assembly
- Go to next step : If between -39 and 139°C (-38 and 282°F)
- If not between -39 and 139°C (-38 and 282°F)
- Verify the following parameters are within 8°C (14°F) of each other :
- TCM Temperature
- TCM Power-Up Temperature
- If not within 8°C (14°F) of each other
Replace the component : Q8 Control Solenoid Valve Assembly
- Go to next step : If within 8°C (14°F) of each other
- Engine - Idling
- Transmission - Park
- Test for 12.6 to 15 V between the test points : Battery Positive Post & Battery Negative Post
- If not between 12.6 and 15 V
Refer to : Charging System Test
- Go to next step : If between 12.6 and 15 V
- If not between 12.6 and 15 V
- Verify the condition does not exist : Incorrect fluid level or condition - Refer to : Transmission Fluid Level and Condition Check
- If a condition exists
Repair or replace as necessary.
- Go to next step : If no condition exists
- If a condition exists
- Clear the DTCs.
- Road test the vehicle. - Refer to : Road Test
Verify the scan tool parameter : Transmission Fluid Temperature = Colder than 140°C (284°F)
- If 140°C (284°F) or warmer
- Ignition/Vehicle - Off
- Verify the component location is free of debris, clutter or any obstruction that may reduce airflow which could cause an overheat condition : Radiator
- If a condition exists - Repair or replace as necessary
- Go to next step : If no condition exists
- Verify the condition does not exist :
- Radiator - Visible Damage
- Transmission Fluid Cooler - Visible Damage
- Transmission Fluid Cooler Pipe - Kinked or Visible Damage
- If a condition exists - Repair or replace as necessary
- If no condition exists - Refer to : Transmission Fluid Cooler Flow Test and Flushing
- Go to next step : If colder 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 component : Q8 Control Solenoid Valve Assembly
- Go to next step : If the DTC is not set
- If the DTC sets
- All OK.
WARNING:
Refer to Parking Brake and Drive Wheels Warning .