Test D: All Windows Are Inoperative From Driver's Control Switch
- Ensure ignition switch is in LOCK position. Disconnect driver's control switch 16-pin harness connector C504. Turn ignition switch to RUN position. Measure voltage between driver's control switch 16-pin harness connector C504 terminal No. 9 (Yellow/Red wire) and ground. See Fig 1
. If voltage is greater than 6 volts, go to next step. If voltage is less than 6 volts, go to step 3
.
- Turn ignition switch to LOCK position. Remove driver's control switch. Perform DRIVER'S CONTROL SWITCH
test under COMPONENT TESTS. If switch is okay, replace Driver's Door Module (DDM). If switch is faulty, replace driver's control switch.
- Turn ignition switch to LOCK position. Disconnect Driver's Door Module (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. 9 (Yellow/Red wire) and DDM 26-pin harness connector C501d terminal No. 12 (Yellow wire). See Figure
and Fig 1
. If resistance is less than 5 ohms, replace DDM. If resistance is greater than 5 ohms, repair open in Yellow/Red and/or Yellow wire and retest system operation.
Courtesy of FORD MOTOR CO.