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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> Trunk Release Malfunction >> Component Testing

Component Testing

Rear Compartment Lid Release Actuator

  1. Ignition OFF, disconnect the harness connector at the M40 rear compartment lid latch.
  2. Install a 10 A fused jumper wire between the control terminal 1 and 12 V. Momentarily install a jumper wire between the ground terminal 2 and ground. Verify the M40 rear compartment lid latch activates.
    • If the actuator does not perform as specified, replace the M40 rear compartment lid latch.

Rear Compartment Lid Release Switch

  1. Ignition OFF, disconnect the harness connector at the S58A rear compartment lid unlatch switch-exterior.
  2. Test for infinite resistance between the signal circuit terminal 1 and the ground circuit terminal 3 with the switch in the open position.
    • If not the specified value, replace the S58A rear compartment lid unlatch switch-exterior.
  3. Test for less than 2 Ω between the signal circuit terminal 1 and the ground circuit terminal 3 with the switch in the closed position.
    • If greater than the specified range, replace the S58A rear compartment lid unlatch switch-exterior.