Test C: Passenger's Power Window Inoperative
- Remove and disconnect passenger's door window switch. See WINDOW SWITCH
under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Using a voltmeter, check voltage between ground and passenger's door window switch connector C600 terminal No. 3 (Red/Light Blue wire). See Fig 1
. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Red/Light Blue wire between passenger's door window switch and instrument panel fuse block. Retest system operation.
Courtesy of FORD MOTOR CO.
- Turn ignition switch to LOCK position. Remove and disconnect master window switch assembly. See WINDOW SWITCH
under REMOVAL & INSTALLATION. Turn ignition switch to RUN position. Using a voltmeter, check voltage between ground and master window switch assembly connector C500 terminal No. 11 (Red/Light Blue wire). See Fig 2
. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Red/Light Blue wire between master window switch assembly and instrument panel fuse block. Retest system operation.
Courtesy of FORD MOTOR CO.
- Turn ignition switch to LOCK position. Using an ohmmeter, check resistance between ground and master window switch assembly connector C500 terminals No. 9 and 14 (Black wires). See Figure
. If both resistance measurements are less than 5 ohms, go to next step. If any resistance measurement is 5 ohms or more, repair open in Black wire(s) between master window switch assembly and ground. Retest system operation.
- Reconnect master window switch assembly connector. Turn ignition switch to RUN position. Using a voltmeter, check voltage between passenger's window switch connector C600 terminal No. 2 (Tan/Light Blue wire) and terminal No. 4 (White/Yellow wire) with right window switch (on master window switch assembly) held in UP position. Check voltage with right window switch (on master window switch assembly) held in DOWN position. If voltage in either measurement is 10 volts or less, check for open or short to ground in Tan/Light Blue or White/Yellow wire between master window switch assembly and passenger's door window switch. If wires are okay, replace master window switch assembly. Retest system operation. If voltage is more than 10 volts in both measurements, go to next step.
- Turn ignition switch to LOCK position. Reconnect passenger's door window switch. Disconnect passenger's door window motor connector. Turn ignition switch to RUN position. Using a voltmeter, check voltage between passenger's door motor connector Red/Yellow wire and Yellow/Red wire terminal with passenger's door window switch in UP position. Check voltage with passenger's door window switch in DOWN position. If voltage in either measurement is 10 volts or less, check for open or short to ground in Red/Yellow or Yellow/Red wire between passenger's door window switch and passenger's door window motor. If wires are okay, replace passenger's door window motor and retest system operation. If voltage is more than 10 volts in both measurements, replace passenger's door window motor and retest system operation.