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Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> Trunk Ajar Indicator Malfunction >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the rear compartment lid release actuator. Ignition ON.
  2. Verify the scan tool Rear Closure Ajar Sw parameter is Inactive.
    • If not Inactive 
    1. Ignition OFF, disconnect the harness connector at the body control module.
    2. Test for infinite resistance between the signal circuit terminal 2 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the body control module.
    • If Inactive 
  3. Install a 3 A fused jumper wire between the signal circuit terminal 2 and ground.
  4. Verify the scan tool Rear Closure Ajar Sw parameter is Active.
    • If not Active 
    1. Ignition OFF, remove the jumper wire, disconnect the harness connector at the body control module, ignition ON.
    2. Test for less than 1 V between the signal circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V
    3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the body control module.
    • If Active 
  5. Test or replace the rear compartment lid release actuator.
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