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Test N: Left Rear Window Inoperative From Driver's Control Switch

  1. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Using NGS tester, perform Driver's Door Module (DDM) self-test. If DDM DTC B1416 is retrieved, go to next step. If any other DDM DTC is retrieved, see DRIVER'S DOOR MODULE DTC INDEX  table under SELF-DIAGNOSTIC SYSTEM. If no DDM DTCs are retrieved, go to step  4 .
  2. Turn ignition switch to LOCK position. Remove driver's control switch. Perform DRIVER'S CONTROL SWITCH  test under COMPONENT TESTS. If switch is okay, go to next step. If switch is faulty, replace driver's window switch.
  3. Disconnect DDM 26-pin harness connector C501d. Turn ignition switch to RUN position. Measure voltage between driver's control switch 16-pin harness connector C504 terminal No. 15 (Yellow/Blue wire) and ground. See Figure . Measure voltage between driver's control switch 16-pin harness connector C504 terminal No. 13 (Yellow/Green wire) and ground. If any voltage is greater than 10 volts, repair short to power in appropriate wire(s) and retest system operation. If voltages are less than 10 volts, replace driver's control switch.
  4. Turn ignition switch to RUN position. Using NGS tester, monitor DDM PIDs LRUP_SW and LRDN_SW while operating right rear window from driver's control switch in UP and DOWN positions. If PIDs agree with driver's control switch positions, replace DDM. If PIDs do not agree with driver's control switch positions, go to next step.
  5. Turn ignition switch to LOCK position. Remove driver's control switch. Perform DRIVER'S CONTROL SWITCH  test under COMPONENT TESTS. If switch is okay, go to next step. If switch is faulty, replace driver's control switch.
  6. Disconnect DDM 20-pin harness connector C501c. Measure resistance in Yellow/Blue wire between driver's control switch 16-pin harness connector C504 terminal No. 15 and DDM 20-pin harness connector C501c terminal No. 9. See Figure and Figure . Measure resistance in Yellow/Green wire between driver's control switch 16-pin harness connector C504 terminal No. 13 and DDM 20-pin harness connector C501c terminal No. 8. If resistances are less than 5 ohms, go to next step. If any resistance is greater than 5 ohms, repair open in appropriate wire(s) and retest system operation.
  7. Measure resistance between driver's control switch 16-pin harness connector C504 terminal No. 15 (Yellow/Blue wire) and ground. Measure resistance between driver's control switch 16-pin harness connector C504 terminal No. 13 (Yellow/Green) and ground. If resistances are greater than 10 k/ohms, replace DDM. If any resistance is less than 10 k/ohms, repair short to ground in appropriate wire(s) and retest system operation.
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