LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Control System >> Diagnostic Information and Procedures >> DTC P0C76 >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

  1. Verify the contactors are operating normally.
    • If the contactors are not operating properly 

      Repair as necessary.

    • Go to next step: If the contactors are operating properly 
  2. Vehicle ON.
  3. With a scan tool, perform the Clear Secured High Voltage DTCs reset function.
  4. Verify DTC P0C76 is not set.
    • If the DTC is set 

      Replace the T6 Power Inverter Module.

    • Go to next step: If the DTC is not set 
  5. All OK
scientia non olet · About LEMON Manuals