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Smart Lock Feature Does Not Operate Properly

WARNING: This page is about a different car, the 1997 Lincoln Mark VIII. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using NGS tester, perform driver's door module SELF-TEST. If DTC U1135 or U1199 is not retrieved, go to next step. If DTC U1135 or U1199 is retrieved, go to MODULE COMMUNICATIONS NETWORK article to diagnose network concern.
  2. Using NGS tester, access driver's door module PID D_DR_DD. Open driver's door. If PID D_DR_DD does not read AJAR, go to next step. If PID D_DR_DD reads AJAR, go to step 6).
  3. Disconnect driver's door ajar switch connector. Measure resistance between ground and driver's door ajar switch connector Black/Light Blue wire terminal. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Blue wire, then retest system.
  4. Using NGS tester, access driver's door module PID D_DR_DD. Connect a jumper wire between driver's door ajar switch connector terminals. If PID D_DR_DD does not read AJAR, go to next step. If PID D_DR_DD reads AJAR, replace driver's door ajar switch, then retest system.
  5. Disconnect driver's door module 16-pin connector C455. Measure resistance in Black/Orange wire between driver's door module 16-pin connector C455 terminal No. 11 and driver's door ajar switch connector. If resistance is less than 5 ohms, replace driver's door module, then retest system. If resistance is greater than 5 ohms, repair open in Black/Orange wire, then retest system.
  6. Using NGS tester, access SCIL control module PID P_DR_SW. Open passenger's door. If PID P_DR_SW does not read AJAR, go to next step. If PID P_DR_SW reads AJAR, go to step 10).
  7. Disconnect passenger's door ajar switch connector. Measure resistance between ground and passenger's door ajar switch connector Black/Light Blue wire terminal. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Blue wire, then retest system.
  8. Using NGS tester, access SCIL control module PID P_DR_SW. Connect a jumper wire between passenger's door ajar switch connector terminals. If PID P_DR_SW does not read AJAR, go to next step. If PID P_DR_SW reads AJAR, replace passenger's door ajar switch, then retest system.
  9. Disconnect SCIL control module 22-pin connector C286. See Figure . Measure resistance in Black/Yellow wire between SCIL control mo dule 22-pin connector C286 and passenger's door ajar switch connector. If resistance is less than 5 ohms, replace SCIL control module, then retest system. If resistance is greater than 5 ohms, repair open in Black/Yellow wire, then retest system.
  10. Using NGS tester, access driver's door module active command DOOR LOCK CONTROL. Command LOCK on. Command LOCK off. Command UNLOCK on. If doors lock and unlock when commanded, replace driver's door module, then retest system. If doors do not lock and unlock when commanded, go to DOOR LOCKS & TRUNK RELEASE - POWER article.
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