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Home >> Chevrolet >> 2025 >> Equinox EV RS, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Plug-In Charging >> Diagnostic Information and Procedures >> DTC U1015 >> Circuit/System Testing

Circuit/System Testing

  1. Vehicle Power Mode state - OFF 
  2. Disconnect the electrical connector: X1 @ K219 Lighting Control Module
  3. Starting with the affected Headlamp/Stop lamp assembly disconnect one Headlamp/Stop lamp connector at time while perform the following test.
  4. Test for infinite resistance between K219 Lighting Control Module connector X5 terminal 16 and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit: 11369.

    • Go to next step: If infinite resistance 
  5. Reconnect the harness connectors at the K219 lighting control module while leaving the Headlamp/Stop lamp connectors disconnected.
  6. Vehicle Power Mode state - Service/Run 
    7. NOTE:

    Additional DTC(s) will set with the Headlamp/Stop lamp connectors disconnected during testing.

  7. Verify DTC U1015 is not set
    • If DTC U1015 is set 

      K219 Lighting Control Module - Replace

    • Go to next step: If DTC U1015 is not set 
  8. Vehicle Power Mode state - OFF 
  9. Connect one Headlamp/Stop lamp connector while leaving the other Headlamp/Stop lamp connectors disconnected.
  10. Vehicle Power Mode state - Service/Run 
    11. NOTE:

    Additional DTC(s) will set with the Headlamp/Stop lamp connectors disconnected during testing.

  11. Verify DTC U1015 is not set
    • If DTC U1015 is set 

      Replace the connected Headlamp/Stop lamp assembly that sets the DTC.

    • Go to next step: If DTC U1015 is not set 
  12. Replace the disconnected Headlamp/Stop lamp assembly.
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