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 P1E37 >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

  1. Vehicle ON.
  2. Verify DTC P1E36 is not set.
    • Go to next step: If the DTC is not set 
  3. Verify that DTC P0C11, P0C12, P0C13, P0C14, P0C15, or P0C16 is not set.
    • Go to next step: If none of the DTCs are set 
  4. Verify DTC P1E37 is not set.
    • If the DTC is set 
    1. Verify the T6 Power Inverter Module has the latest calibration in Calibration Information.
      • If the T6 Power Inverter Module does not have the latest calibration, program the T6 power inverter module.
      • If the T6 Power Inverter Module has the latest calibration, replace the T6 Power Inverter Module.
    2. 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.
    3. Verify the DTC does not set.
      • If the DTC sets, replace the T6 Power Inverter Module.
      • Go to next step: If the DTC does not set.
    4. All OK
    • Go to next step: If the DTC is not set 
  5. All OK
scientia non olet · About LEMON Manuals