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Test G: Memory Mirrors Inoperative

  1. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Perform Driver's Door Module (DDM) self-test. If no DDM DTCs exist, go to next step. If any DDM DTCs exist, go to appropriate step. See DTC TEST INDEX  table.
    DTC TEST INDEX

    DTC Go To Step
    B1529  11
    B1533  16
    B1537  18
    B2373  20
  2. Perform Driver's Seat Module (DSM) self-test. If no DSM DTCs exist, go to next step. If any DSM DTCs exist, perform appropriate test. See DRIVER'S SEAT MODULE DTC INDEX  table under SELF-DIAGNOSTIC SYSTEM.
  3. Operate both mirror through all positions. If both mirrors operate through all positions, go to next step. If either mirror does not operate through all positions, repair by symptom. See SYMPTOM INDEX  .
  4. Activate memory feature at memory switch to both memory positionS. If memory feature operates properly, go to next step. If memory feature does not operate properly, go to step  6 .
  5. Activate memory feature at remote transmitter to both memory positionS. If memory feature operates properly, memory feature is okay at this time. If memory feature does not operate properly, repair keyless entry system. See appropriate POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS article.
  6. Turn ignition switch to RUN position. If memory switch LED is not always illuminated, go to next step. If memory switch LED is always illuminated, go to step  23 .
  7. Using NGS tester, observe DDM PID MEMS_SW. Press memory set switch. If NGS tester displays OFF when switch is pressed and ON when released, go to next step. If NGS tester does not display OFF when switch is pressed and ON when released, go to step  11 .
  8. Press and release memory set switch. If memory switch LED remains on for 5 seconds, go to next step. If memory switch LED does not remain on for 5 seconds, go to step  14 .
  9. Observer DDM PID MEM1_SW on NGS tester. Press memory switch position No. 1 button. If NGS tester displays ON when switch is pressed and OFF when released, go to next step. If NGS tester does not display ON when switch is pressed and OFF when released, go to step  13 .
  10. Observer DDM PID MEM2_SW on NGS tester. Press memory switch position No. 2 button. If NGS tester displays ON when switch is pressed and OFF when released, replace DSM. If NGS tester does not display ON when switch is pressed and OFF when released, go to step  13 .
  11. Disconnect DDM harness connector C520. Measure voltage at terminal No. 20 (Brown/Orange wire) at DDM harness connector C520. If voltage exists, go to next step. If voltage does not exist, replace DDM.
  12. Disconnect DDM harness connector C520 and driver's seat control switch harness connector C509. Measure voltage at terminal No. 20 (Brown/Orange wire) at DDM harness connector C520. If voltage exists, repair short to voltage in Brown/Orange wire between DDM and driver's seat control switch. If voltage does not exist, replace driver's seat control switch.
  13. Disconnect DDM harness connector C520. Measure resistance between ground and terminals No. 20 (Brown/Orange wire), No. 21 (Brown/Light Green wire) and No. 33 (Black/Orange wire) at DDM harness connector C520. If any resistance is 10 k/ohms or less, go to next step. If all resistances are greater than 10 k/ohms, go to step  15 .
  14. Disconnect driver's seat control switch harness connector C509. Measure resistance between ground and terminals No. 20 (Brown/Orange wire), No. 21 (Brown/Light Green wire) and No. 33 (Black/Orange wire) at DDM harness connector C520. If any resistance is 10 k/ohms or less, repair short to ground in appropriate wire between DDM and driver's seat control switch. If all resistances are greater than 10 k/ohms, replace driver's seat switch.
  15. Disconnect driver's seat control switch harness connector C509. Measure resistance in Brown/Orange wire between terminal No. 20 at DDM harness connector C520 and terminal No. 5 at driver's seat control switch harness connector C509. Measure resistance in Brown/Light Green wire between terminal No. 21 at DDM harness connector C520 and terminal No. 6 at driver's seat control switch harness connector C509. Measure resistance in Black/Orange wire between terminal No. 33 at DDM harness connector C520 and terminal No. 7 at driver's seat control switch harness connector C509. If all resistances are 5 ohms or less, go to step  22 . If any resistance is greater than 5 ohms, repair open in appropriate wire.
  16. Disconnect DDM harness connector C520. Measure voltage at terminal No. 21 (Brown/Light Green wire) at DDM harness connector C520. If voltage exists, go to next step. If voltage does not exist, replace DDM.
  17. Disconnect driver's seat control switch harness connector C509. Measure voltage at terminal No. 21 (Brown/Light Green wire) at DDM harness connector C520. If voltage exists, repair short to voltage in Brown/Light Green wire between DDM and driver's seat control switch. If voltage does not exist, replace driver's seat switch.
  18. Disconnect DDM harness connector C520. Measure voltage at terminal No. 33 (Black/Orange wire) at DDM harness connector C520. If voltage exists, go to next step. If voltage does not exist, replace DDM.
  19. Disconnect driver's seat control switch harness connector C509. Measure voltage at terminal No. 33 (Black/Orange wire) at DDM harness connector C520. If voltage exists, repair short to voltage in Black/Orange wire between DDM and driver's seat control switch. If voltage does not exist, replace driver's seat switch.
  20. Disconnect DDM harness connector C521. Measure voltage at terminal No. 14 (White/Orange wire) at DDM harness connector C521. If voltage exists, go to next step. If voltage does not exist, replace DDM.
  21. Disconnect driver's seat control switch harness connector C509. Measure voltage at terminal No. 14 (White/Orange wire) at DDM harness connector C521. If voltage exists, repair short to voltage in White/Orange wire between DDM and driver's seat control switch. If voltage does not exist, replace driver's seat switch.
  22. Disconnect driver's seat control switch harness connector C509. Disconnect DDM harness connector C521. Measure resistance in White/Orange wire between terminal No. 14 at DDM harness connector C521 and terminal No. 4 at driver's seat control switch harness connector C509. If resistance is 5 ohms or less, go to step  24 . If resistance is greater than 5 ohms, repair open in White/Orange wire.
  23. Disconnect driver's seat control switch harness connector C509. Disconnect DDM harness connector C521. Measure resistance between ground and terminal No. 14 at DDM harness connector C521. If resistance is greater than 10 k/ohms, replace driver's seat switch. If resistance is 10 k/ohms or less, repair short to ground in White/Orange wire.
  24. Test driver's seat switch. See DRIVER'S SEAT CONTROL SWITCH (WITH MEMORY)  under COMPONENT TESTS. If driver's seat switch is okay, replace DDM. If driver's seat switch is defective, replace driver's seat switch.
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