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Test E: Left Rear Window Is Inoperative

  1. Check Switch Input  - Turn ignition switch to RUN position. Using NGS tester, select and monitor DDM PID LRPW_SW. Press and release driver door window control switch left rear window switch in the UP and DOWN position several times. If PID LRPW_SW values agree with the switch position, go to next step. If PID LRPW_SW values do not agree with the switch position, replace driver door module and retest system operation.
  2. Operate Left Rear Window From Driver Door Switch  - Attempt to operate left rear window from driver door window control switch. If left rear window does not operate properly, go to next step. If left rear window operates properly, go to step 9).
  3. Check Left Rear Window Output From Driver Door Module (DDM)  - Turn ignition off. Disconnect left rear window control switch 4-pin flat connector C711. Turn ignition switch to RUN position. Using a voltmeter, check voltage between ground and left rear window control switch 4-pin flat connector C711 Yellow/Light Blue wire terminal while pressing left front window control switch left rear window to UP position. Check voltage between ground and left rear window control switch 4-pin flat connector C711 Gray/Orange wire terminal while pressing left front window control switch left rear window to DOWN position. If voltage cycles from zero volts to battery voltage when switches are pressed, go to next step. If voltage does not cycle from zero volts to battery voltage when switches are pressed, go to step 7).
  4. Check Yellow/Light Green Wire For Voltage  - Disconnect left rear window control switch 4-pin square connector C709. Using a voltmeter, check voltage between ground and left rear window control switch 4-pin square connector C709 Yellow/Light Green wire terminal. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Yellow/Light Green wire and retest system operation.
  5. Check Black Wire For Open  - Turn ignition off. Using an ohmmeter, check resistance between ground and left rear window control switch 4-pin square connector C709 Black wire terminal. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Black wire and retest system operation.
  6. Check Left Rear Window Control Switch  - Check left rear window control switch. See SINGLE SWITCHES  under COMPONENT TESTS. If left rear window control switch is okay, go to step 8). If left rear window control switch is not okay, replace switch and retest system operation.
  7. Check Yellow/Light Blue & Gray/Orange Wires For Open  - Disconnect DDM 20-pin connector C523 (located in lower front corner of driver door). Using an ohmmeter, check resistance in Yellow/Light Blue wire between DDM 20-pin C523 connector terminal No. 1 and left rear window control switch 4-pin flat connector C711. See Fig 1 . Check resistance in Gray/Orange wire between DDM 20-pin C523 connector terminal No. 2 and left rear window control switch 4-pin flat connector C711. If either resistance reading is 5 ohms or more, repair open in Yellow/Light Blue and/or Gray/Orange wire and retest system operation. If both resistance readings are less than 5 ohms, replace driver door module and retest system operation.
  8. Check Yellow/Black & Yellow/Light Blue Wires For Open  - Disconnect left rear window motor connector C710. Using an ohmmeter, check resistance in Yellow/Black wire between left rear window control switch 4-pin flat connector C711 and left rear window motor connector C710. Check resistance in Yellow/Light Blue wire between left rear window control switch 4-pin flat connector C711 and left rear window motor connector C710. If either resistance reading is 5 ohms or more, repair open in Yellow/Black and/or Yellow/Light Blue wire and retest system operation. If both resistance readings are less than 5 ohms, replace left rear window motor and retest system operation.
  9. Check Red/Light Blue Wire For Voltage  - Disconnect left rear window control switch 4-pin flat connector C711. Turn ignition switch to RUN position. Using a voltmeter, check voltage between ground and left rear window control switch 4-pin flat connector C711 Red/Light Blue wire terminal. If voltage is more than 10 volts, replace left rear window control switch and retest system operation. If voltage is 10 volts or less, repair open in Red/Light Blue wire and retest system operation.
Fig 1: Identifying DDM Connector C523 Terminals
G97F28535Courtesy of FORD MOTOR CO.
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