Test D: All Power Windows Inoperative (2-Door)
- Turn ignition switch to LOCK position. Check Central Junction Box (CJB) fuse F56 (25-amp). If fuse is okay, go to next step. If fuse is faulty, replace fuse. If fuse fails again, repair short to ground in Green/Blue wire between CJB and driver's power window control switch.
- Turn ignition switch to RUN position. Measure voltage between ground and CJB fuse F56 (25-amp) power supply side. If battery voltage exists, go to next step. If battery voltage does not exist, go to step 7
.
- Turn ignition switch to LOCK position. Disconnect driver's power window control switch harness connector C488. Turn ignition switch to RUN position. Measure voltage between ground and driver's power window control switch harness connector C488 terminal No. 15 (Green/Blue wire). See Fig 1
. If battery voltage exists, go to next step. If battery voltage does not exist, repair open or short to ground in Green/Blue wire between CJB and driver's power window control switch.
- Measure voltage between driver's power window control switch harness connector C488 terminals No. 15 (Green/Blue wire) and No. 5 (Black wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Green/Blue wire or Black wire. Retest system operation. See WIRING DIAGRAMS
.
- Turn ignition switch to LOCK position. Disconnect passenger's power window control switch harness connector C489. Turn ignition switch to RUN position. Measure voltage between ground and passenger's power window control switch harness connector C489 terminal No. 2. See Figure
. If battery voltage exists, go to next step. If battery voltage does not exist, repair open or short in Green/White wire between CJB and driver's power window control switch.
- Measure voltage in Green/White wire between passenger's power window control switch harness connector C489 terminals No. 2 (Green/White wire) and terminal No. 4 (Black wire). If battery voltage exists, verify customer concern. If battery voltage does not exist, repair open in Green/White wire or Black wire as necessary. See WIRING DIAGRAMS
.
- Turn ignition switch to LOCK position. Check Battery Junction Box (BJB) fuse F1 (40-amp). If fuse is okay, repair open in Green/Red wire and retest system operation. If fuse is faulty, replace fuse. If fuse fails again, repair short to ground in Green/Red wire between BJB and CJB.
Courtesy of FORD MOTOR CO.