LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (12 V Starting And Charging - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0622 >> 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.
NOTE:

Do not have a battery charger connected during the generator testing.

  1. Engine running.
  2. Verify the scan tool Generator F-Terminal Signal parameter is between 5 - 90%.
    • If not between 5 - 90% 

      Refer to Circuit/System Testing.

    • Go to next step: If between 5 - 90% 
  3. Verify the scan tool Generator F-Terminal Signal parameter changes when turning the headlamps ON and OFF.
    • If the parameter does not change 

      Refer to Circuit/System Testing.

    • Go to next step: If the parameter changes 
  4. 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.
  5. Verify DTC P0622 is not set as current.
    • If DTC P0622 is set as current 

      Refer to Circuit/System Testing.

    • Go to next step: If DTC P0622 is not set as current or is set as history 
  6. A fault is currently not present and may be an intermittent condition.
scientia non olet · About LEMON Manuals