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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Manual Transmission - TREMEC 6-Speed (Mg9) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0801, P088C, or P088D >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine - Idling
  2. Verify the scan tool parameter:
    • Reverse Inhibit Solenoid Actuator Control Circuit High Voltage Test Status = Not Run or Okay
    • Reverse Inhibit Solenoid Actuator Control Circuit Low Voltage Test Status = Not Run or Okay
    • Reverse Inhibit Solenoid Actuator Control Circuit Open Test Status = Not Run or Okay
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  3. 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 
  4. All OK.
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