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Test 19H - Diagnosing Door Lock/Unlock Circuit

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  in this article. For wiring diagrams, see WIRING DIAGRAMS  in this article.
CAUTION: Always turn ignition off prior to disconnecting or connecting any module connector.
  1. If problem is with sliding side door lock, check door contacts before proceeding. Repair door contacts as necessary. Perform TEST VER-1B  . If contacts are okay and on all other doors, go to next step.
  2. Turn ignition off. Gain access to inoperative door lock switch. Disconnect door lock motor connector. Using DRB in voltmeter mode, check voltage on door lock relay output circuit (Orange/Black wire) at door lock switch connector.
  3. Observe DRB while depressing door lock switch to lock position. If voltage is less than 10 volts, repair open Orange/Black wire. Perform TEST VER-1B. If voltage is more than 10 volts, go to next step.
  4. Check voltage on door unlock relay output circuit (Pink/Black wire) at door lock switch connector. Observe DRB while depressing door lock switch to unlock position. If voltage is less than 10 volts, repair open Pink/Black wire. Perform TEST VER-1B. If voltage is more than 10 volts, replace door lock motor. Perform TEST VER-1B.
NOTE: Test sequence skips from TEST 19H to TEST 19J. No test procedures have been omitted.