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Only Some Doors Lock & Unlock

  1. Disconnect suspect door lock motor connector. Hold left front door lock switch in unlock position and measure voltage between suspect door lock motor connector terminal "A" (rear door-Tan wire) or terminal "B" (front door-Tan wire) and ground. If battery voltage is not present, repair open circuit in Tan wire.
  2. If battery voltage is present, hold left front door lock switch in unlock position and measure voltage between suspect door lock motor connector terminals "A" (Tan wire) and "B" (Gray wire).
  3. If battery voltage is not present, repair open circuit in Gray wire. If battery voltage is present, replace suspect door lock motor.
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