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Test D: Power Door Lock Inoperative, Unlock Operates

  1. If Diagnostic System Check has been performed, go to next step. If Diagnostic System Check has not been performed, perform DOOR SYSTEM DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Actuate each door lock switch, one at a time, to LOCK position. If doors locked from each switch, check for intermittent problem. If locks did not operate as specified, go to next step.
  3. If door locks locked from any switch, seeTEST C: POWER DOOR LOCKS INOPERATIVE-ONE DOOR OR SWITCH  . If door locks did not lock from any switch, go to next step.
  4. Remove door lock relay. Using test light connected to ground, test battery positive voltage (Orange wire) circuit of door lock relay at fuse block. If test light illuminates, go to next step. If test light does not illuminate, go to step  14 .
  5. Using test light connected to ground, test battery positive voltage circuit (Orange wire) of switched side of door lock relay at fuse block. If test light illuminates, go to next step. If test light does not illuminate, go to step  14 .
  6. Using test light connected to battery positive voltage, test ground circuit (Black wire) on coil side of door lock relay circuit. If test light illuminates, go to next step. If test light does not illuminate, go to step  15 .
  7. Using test light connected to ground, test door lock control circuit (Light Blue wire) of door lock relay. Actuate door lock switch to lock position. If test light illuminates, go to next step. If test light does not illuminate, go to step  17 .
  8. Inspect for poor connections at door lock relay. If poor connections were found, repair as necessary and then go to step  18 . If poor connections were not found, go to next step.
  9. Remove door unlock relay. Using test light connected to battery positive voltage, test ground circuit (Black wire) of door unlock relay. If test light illuminates, go to next step. If test light does not illuminate, go to step  16 .
  10. Install door lock relay. Connect fused jumper between switched side ground circuit (White wire) and load side (Tan wire) of door unlock relay at fuse block. Actuate door locks to LOCK position. If doors locked, go to next step. If doors did not lock, go to step  12 .
  11. Inspect for poor connections at door unlock relay. If problem was found, repair and go to step  18 . If problem was not found, go to step  13 .
  12. Replace door lock relay. After completing repairs, go to step  18 .
  13. Replace door unlock relay. After completing repairs, go to step  18 .
  14. Repair open in door lock relay battery positive voltage circuit (Orange wire). After completing repairs, go to step  18 .
  15. Repair open in door lock relay ground circuit (Black wire). After completing repairs, go to step  18 .
  16. Repair open in door unlock relay ground circuit (Black wire). After completing repairs, go to step  18 .
  17. Repair open in door lock control circuit (Gray wire). After completing repairs, go to step  18 .
  18. Operate system in order to verify repair.
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