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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Door Lock System & Door Handles) >> Diagnostic Information and Procedures >> Power Door Locks Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Door Latch Assembly Test

  1. Ignition OFF, disconnect the harness connector at the appropriate door latch.
  2. Install a 20A 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 latch should perform the LOCK/ UNLOCK functions.
    • If it does not perform as specified, replace the door latch

Relay Test

  1. Ignition OFF, disconnect the appropriate relay.
  2. Test for 60-200 ohms between terminals 85 and 86.
    • If not within the specified range, replace the relay.
  3. Test for infinite resistance between the following terminals:
    • 30 and 86
    • 30 and 87
    • 30 and 85
    • 85 and 87
    • If less than the specified value, replace the relay.
  4. Test for less than 2 ohms between terminals 30 and 87A.
    • If greater than the specified range, replace the relay.
  5. Install a 3A fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 ohms between terminals 30 and 87.
    • If greater than the specified range, replace the relay.
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