Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> Power Door Locks Malfunction >> Component Testing

Component Testing

Door Lock Switch

  1. Ignition OFF, disconnect the harness connector at the appropriate door lock switch.
  2. Test for infinite resistance between the signal terminals D and E and the ground terminal B with the switch in the open position.
    • If not the specified value, replace the door lock switch.
  3. Test for less than 2 Ω between the signal terminal D and the ground terminal B with the switch in the lock position.
    • If greater than the specified range, replace the door lock switch.
  4. Test for less than 2 Ω between the signal terminal E and the ground terminal B with the switch in the unlock position
    • If greater than the specified range, replace the door lock switch.

Door Lock Assembly

  1. Ignition OFF, disconnect the harness connector at the appropriate door lock.
  2. Install a 15A fused jumper wire between one of the control terminals and 12V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the door lock should perform the LOCK and UNLOCK functions.
    • If it does not perform as specified, replace the door lock.
scientia non olet · About Mike's Workshop Manuals