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Test Procedures

  1. Use spray lubricant to completely lubricate latch. If necessary, remove inner trim panel to completely spray linkage. Cycle lock 10 times or more, and check for interference.
  2. No Door Locks Work. Check power door lock circuit breaker (No. 14). If breaker is okay, go to next step. If not, replace circuit breaker.
  3. Turn ignition off. Disconnect Green connector. Turn ignition on and check voltage between pin No. 13 of Green connector and ground while activating door lock switch. If reading is 10 volts or more, go to next step. If reading is less than 10 volts, repair open or short in circuit No. 171 or charge battery. Repeat QUICK TEST  .
  4. Ensure entire power door lock system is connected. Connect voltmeter between pin No. 13 of Green connector and ground. If reading is 10 volts or more when door lock/unlock switches are activated, go to next step. If reading is less than 10 volts, check for short to ground in circuits No. 117, 118, 163, and in power door lock motor(s). Repeat QUICK TEST  .
  5. Using ohmmeter, check continuity between pin No. 5 of Green connector and ground. Also check continuity between pin No. 6 of Green connector and ground. If continuity exists, go to next step. If no continuity exists, repair open in Black wire. Repeat QUICK TEST  .
  6. Manually lock all doors. With keyless entry module disconnected, connect a jumper wire between pin No. 8 of Green connector and ground. Momentarily connect a second jumper wire between pins No. 1 and 13. If all doors unlock, go to next step. If only driver's door unlocks, repair circuits No. 117, 118, 163, or power door lock motor(s). Repeat QUICK TEST  .
  7. Check for a power door lock switch that may be stuck in the "LOCK" or "UNLOCK" positions. If stuck, replace switch(es) and repeat QUICK TEST  . If switches are okay, go to next step.
  8. Disconnect Green connector. Check for short to ground between pin No. 10 and ground. See KEYLESS ENTRY MODULE CONNECTOR TERMINAL IDENTIFICATION in the figure. See Figure . Also check for short between pin No. 11 and ground. If no short is found, replace keyless entry module and repeat QUICK TEST  . If short is found, repair short to ground in Pink/Yellow and in Pink/Light Green wires.
  9. One Or More Locks Do Not Work. Manually cycle lock several times to check latch or linkage for binding. If mechanism is okay, go to next step. If linkage binds, lubricate mechanism. Refer to step 1) of Test E.
  10. Remove door trim panel. While pressing "LOCK" position of door switch, check voltage between faulty door lock actuator and ground. If reading is 10 volts or more, go to step 12). If reading is less than 10 volts, go to next step.
  11. Connect Green connector. Depress lock button and measure voltage between pin No. 1 and ground. Also measure voltage between pin No. 8 and ground. With lock button released there should be zero volts at pins No. 1 and 8. If reading is 10 volts or more when button is depressed or zero volts when button is released, repair open or short in circuits No. 117, 118, or 163. If reading is less than 10 volts when button is depressed or more than 10 volts when button is released, replace keyless entry module and repeat QUICK TEST  .
  12. While pressing "UNLOCK" position of door switch, check voltage between door lock actuator circuit No. 118 and ground. If reading is 10 volts or more, replace door lock actuator and repeat QUICK TEST  . If reading is less than 10 volts, repair open or short in circuit No. 118 or 120. Repeat QUICK TEST  .
  13. One Or More Switches Do Not Work. Turn ignition off. Disconnect Green connector. Remove door trim panel at faulty switch. Check continuity between pin No. 10 of Green connector and Pink/Yellow wire terminal of door lock switch. Check continuity between pin No. 11 and Pink/Light Green wire terminal of door lock switch. Go to next step.
  14. Check continuity between ground terminal of door lock switch and ground. If continuity exists in all circuits, replace door lock switch and repeat QUICK TEST  . If continuity does not exist in any circuit, repair open in circuit(s) No. 119, 120, or 57 (ground). Repeat QUICK TEST  .
  15. Lock Will Only Lock Or Unlock. With ignition off and Green connector disconnected, check circuit No. 57 (ground) to door lock switches. If door will not lock (unlock), check continuity of between pin No. 10 (11 if doors will not unlock) of Green connector and ground while pressing "LOCK" ("UNLOCK") position of switch. If continuity exists, go to next step. If circuit is open from pins No. 10 or 11 to ground only, go to step 17). If ground circuit is open, repair circuit No. 57 (Black ground wire) and repeat QUICK TEST  .
  16. Check voltage between pin No. 8 (3 if doors will not unlock) of Green connector while pressing "LOCK" ("UNLOCK") position of one door lock switch. If reading is 10 volts or more, repair open or short in circuit No. 117 (118 if doors will not unlock). Repeat QUICK TEST  . If reading is less than 10 volts, replace keyless entry module and repeat QUICK TEST  .
  17. While pressing "LOCK" ("UNLOCK") position of door switch, check continuity between ground and circuit No. 119 (120 if doors do not unlock) connection to door switch. Repeat QUICK TEST  . If continuity exists, repair open in circuit No. 119 or 120. If no continuity exists, replace doors switch. Repeat QUICK TEST  .
  18. Locks Work Intermittently. Turn ignition off. Disconnect Green connector. Check continuity between pin No. 5 of Green connector and ground. Also check continuity between pin No. 6 of Green connector and ground. If continuity exists, check for and repair loose connections. Repeat QUICK TEST  . If no continity exists, repair circuit No. 57 (ground). Repeat QUICK TEST  .
  19. Locks Do Not Work In Freezing Weather. Bring vehicle into heated garage to thaw out door locks. Lubricate doors locks as specified in step 1) and perform QUICK TEST  to indentify or locate problem(s).
  20. Locks Work Only With Engine Running. Ensure battery is fully charged. Check condition of latches and linkage of all door locks to eliminate binding. Check and repair any corroded or loose connections at door lock actuators, switches, or keyless entry module. Perform QUICK TEST  to indentify or locate problem(s).
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