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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 250 (Manual Transmission - TREMEC 6-Speed (MJK)) >> Diagnostic Information and Procedures >> DTC P08AC >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify DTC P0641, P0651, P0697, P06A3, P08A8-P08AA is not set.
    • Go to next step: If none of the DTCs are set 
  3. Inspect the component for wear or damage: Clutch Pedal - Refer to: Symptoms - Clutch
    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no conditions exist 
  4. Perform the following learn procedure: Clutch Pedal Position Learn 
    • If the procedure was not successful 

      Replace the component: K20 Engine Control Module

    • Go to next step: If the procedure was successful 
  5. All OK.
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