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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Door Lock Systems & Door Handles) >> Diagnostic Information and Procedures >> Power Door Locks Inoperative >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Door Lock Switch

  1. Ignition OFF, disconnect the harness connector at the appropriate door lock switch.
  2. Test for infinite resistance between the signal terminal E and D and the ground terminal B with the switch in the open position.
    • If not the specified value, replace the appropriate door lock switch.
  3. Test for less than 2.0 ohms between the signal terminal E and the ground terminal B with the switch in the UNLOCK position.
    • If greater or less than the specified range, replace the appropriate door lock switch.
  4. Test for less than 2.0 ohms 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 appropriate door lock switch.

Door Lock

  1. Install a 15-amp fused jumper wire between the lock control terminal and 12 volts. Momentarily install a jumper wire between the unlock control terminal and ground. The appropriate door lock should perform the LOCK/ UNLOCK function.
    • If the function does not perform as specified, replace the appropriate door lock.
  2. Reverse the jumper wires; the appropriate door lock should perform the UNLOCK/LOCK function.
  3. If the function does not perform as specified, replace the appropriate door lock.
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