Specifications

TROUBLESHOOTING [POWER WINDOW SYSTEM]
S127
S
NO. 3 DRIVER-SIDE FRONT WINDOW REVERSES EVEN THOUGH THE GLASS DOES NOT ENCOUNTER A
FOREIGN OBJECT WHILE IT IS GOING UP IN AUTOMATIC MODE
A6E778058000W07
Diagnostic procedure
End Of Sie
3
Driver-side front window reverses even though the glass does not encounter a foreign object while
it is going up in automatic mode.
POSSIBLE
CAUSE
• Too much driver-side front window friction resistance: Steps 15
• Short to ground in position sensor 1 signal from wiring harness (between power window main switch
and driver-side front power window motor), inner driver-side front power window motor, or inner power
window main switch: Steps 6, 7
STEP INSPECTION ACTION
1 INSPECT FOR FOREIGN OBJECT IN DRIVER-
SIDE FRONT WINDOW
• Is there a foreign object in driver-side front
window?
Yes Remove the object.
No Go to next step.
2 INSPECT ACRYLIC VISOR BRACKET
INSTALLATION
• Is acrylic visor bracket properly installed?
Yes Go to next step.
No Reinstall acrylic visor bracket properly.
3 INSPECT TO SEE IF GLASS RUN CHANNEL
INTERFERES WITH DRIVER-SIDE FRONT
WINDOW
• Remove driver-side front door trim.
• Does glass run channel interfere with driver-
side front window?
Yes Repair or replace glass run channel, then go to Step 9.
No Go to next step.
4 INSPECT LUBRICANT ON DRIVER-SIDE
CARRIER PLATE
• Is there lubricant on driver-side carrier plate?
Yes Go to next step.
No Apply lubricant (mineral oil).
5 INSPECT INSTALLATION OF DRIVER-SIDE
FRONT POWER WINDOW SYSTEM
COMPONENTS
• Are the following parts properly installed?
 Driver-side front door glass
 Driver-side power window motor wire
 Driver-side power window motor
 Driver-side power window regulator frame
 Driver-side carrier plate
 Driver-side glass run channel
Yes Go to next step.
No Reinstall part(s) properly, then go to Step 9.
6 VERIFY POSITION SENSOR 1 OUTPUT
SIGNAL
• Turn ignition switch to ON position.
• Test voltage at driver-side front power
window motor connector terminal H (position
sensor 1 signal).
• Is voltage alternate between 0 V and
approximately 12 V when driver-side front
window is being gone up and down at
manual mode?
Yes Go to next step.
No Replace driver-side front power window motor, then go to
Step 8.
7 VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW MAIN SWITCH AND DRIVER-SIDE
FRONT POWER WINDOW MOTOR) OR
POWER WINDOW MAIN SWITCH
• Turn ignition switch to LOCK position.
• Disconnect power window main switch.
• Is there continuity between power window
main switch connector terminal 2C (position
sensor 1 signal) and ground?
Yes Repair wiring harness between power window main switch
and driver-side front power window motor, then go to next
step.
No Replace power window main switch (short to ground in
power window main switch), then go to next step.
8 RECHECK MALFUNCTION SYMPTOM AFTER
REPAIR
• Did malfunction disappear?
Yes • Troubleshooting completed.
• Explain repairs to customer.
No Recheck malfunction symptoms, then repeat from Step 1 if
malfunction recurs.