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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1626 (Door Lock System And Door Handles) >> Diagnostic Information and Procedures >> DTC B3140 or B3150 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the driver door lock switch.
  2. Test for infinite resistance between the signal terminals 3 and 1 and the ground terminal 2 with the switch in the open position.
    • If less than the specified value, replace the driver door lock switch.
  3. Test for less than 2 ohms between the signal terminal 3 and the ground terminal 2 with the switch in the unlock position.
    • If greater than the specified range, replace the driver door lock switch.
  4. Test for less than 2 ohms between the signal terminal 1 and the ground terminal 2 with the switch in the lock position.
    • If greater than the specified range, replace the driver door lock switch.
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