Power Windows — Driver's Switch Input Test
16-143spec tableConnector terminal layouts given separately for RHD and LHD. Ground callout G301, G401 [G301] with bracketed value for RHD.
Driver's Switch Input Test
NOTE
The control unit is built into the driver's switch, and only controls driver's door window operation.
Remove the 2 screws. Disconnect the 10-P connector and remove the driver's switch from the door trim panel. Make the following input tests at the harness pins.
NOTE
Recheck the connections between the 10-P connector and the driver's switch, then replace the driver's switch if all input tests prove OK.
1
TerminalBLK¹
Test conditionUnder all conditions.
Test: desired resultCheck for continuity to ground: should be continuity.
Possible cause (if result is not obtained)Poor ground (G301, G401 [G301]) / An open in the wire.
2
TerminalWHT/YEL, BLU/BLK
Test conditionIgnition switch ON.
Test: desired resultCheck for voltage to ground: should be battery voltage.
Possible cause (if result is not obtained)Blown No.20 or 21 (20A) fuse. / Faulty power window relay. / An open in the wire.
3
TerminalRED/BLU and RED/YEL
Test conditionConnect the WHT/YEL terminal to the RED/BLU terminal, and the RED/YEL terminal to the BLK terminal, then ignition switch ON.
Test: desired resultCheck the driver's motor operation: should run.
Possible cause (if result is not obtained)Faulty driver's motor. / An open in the wire.
4
TerminalBLU/YEL and BLU/GRN
Test conditionConnect the BLU/BLK terminal to the BLU/YEL terminal, and the BLU/GRN terminal to the BLK terminal, then ignition switch ON.
Test: desired resultCheck the right front motor operation: should run.
Possible cause (if result is not obtained)Faulty passenger's motor / Faulty passenger's switch / An open in the wire.
5
TerminalBLU and BLK²
Test conditionConnect the WHT/YEL terminal to the RED/YEL terminal, and the BLK¹ terminal to the RED/BLU terminal, then ignition Switch ON.
Test: desired resultCheck for resistance between the BLU and BLK² terminals: should indicate between 20-50 ohms as the driver's motor runs.
Possible cause (if result is not obtained)Faulty pulser. / Faulty driver's motor. / An open in the wire.