Circuit/System Verification
WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On / Vehicle - In Service Mode
- Perform the scan tool control function:
- { P0658, P0659 } High Side Driver 1 - On and Off
- { P2670, P2671 } High Side Driver 2 - On and Off
- Verify the scan tool parameter:
- High Side Driver 1, 2 Circuit High Voltage Test Status = OK or Not Run
- High Side Driver 1, 2 Circuit Low Voltage Test Status = OK or Not Run
- High Side Driver 1, 2 Circuit Open Test Status = OK or Not Run
- If not the specified state
Refer to: Circuit/System Testing
- Go to next step: If the specified state
- Verify the scan tool parameter:
- High Side Driver 1, 2 Circuit High Voltage Test Status = OK or Not Run
- High Side Driver 1, 2 Circuit Low Voltage Test Status = OK or Not Run
- High Side Driver 1, 2 Circuit Open Test Status = OK or Not Run
- Perform the action while monitoring the parameter:
- Wiggle the harness and connector: X175@T12 Automatic Transmission Assembly
- Wiggle the harness and connector: K71 Transmission Control Module
- If not the specified state
Repair as necessary - Wiring / Terminal(s) / Electrical Connector(s)
- Go to next step: If the specified state
- 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
Refer to: Circuit/System Testing
- Go to next step: If the DTC is not set
- If the DTC sets
- All OK.