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Power Window Test 4A - Inoperative Left Rear Window Motor

NOTE: Perform POWER WINDOW TEST 1A  before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION  . For wiring diagrams, refer to WIRING DIAGRAMS  . Refer to POWER WINDOWS article. After each repair, perform TEST VER-1A  .
CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector. Ensure all connectors are clean and tight.
  1. If rear window operates from driver's door module, go to POWER WINDOW TEST 4C  . If rear window operates from rear door switch, replace driver's door module. If rear window does not operate from rear door switch, go to next step.
  2. Disconnect left rear window motor connector. Connect test light between window motor connector terminals. Using scan tool, actuate left rear window up relay. If test light does not flash when relay is actuated, go to step 4). If test light flashes when relay is actuated, go to next step.
  3. Using scan tool, actuate left rear window down relay. If test light flashes when relay is actuated, replace power window motor. If test light does not flash when relay is actuated, replace driver's door module.
  4. Disconnect left rear window switch connector. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Dark Blue/White wire) and No. 4 (Red/Black wire) on left rear window switch connector. If voltage is less than 10 volts on either circuit, go to POWER WINDOW TEST 4B  . If voltage is 10 volts or more on both circuits, go to next step.
  5. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Brown wire) on at left rear door window connector. If resistance is less than 20 ohms, repair short in Brown wire. If resistance is 20 ohms or more, go to next step.
  6. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Violet wire) on left rear door window connector. If resistance is less than 20 ohms, repair short in Violet wire. If resistance is 20 ohms or more, go to next step.
  7. Connect a jumper between terminals No. 1 (Dark Blue/White wire) and No. 2 (Brown wire) on left rear door window switch connector. Connect a second jumper wire between terminal No. 4 (Red/Black wire) and No. 5 (Violet wire). Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Brown wire) on window motor connector. If voltage is less than 10 volts, repair open in Brown wire. If voltage is 10 volts or more, go to next step.
  8. With jumper wires still connected, measure voltage at terminal No. 2 (Violet wire) on window motor connector. If voltage is less than 10 volts, repair open in Violet wire. If voltage is 10 volts or more, replace rear door window switch.
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