NO. 1 DRIVER-SIDE FRONT WINDOW DOES NOT GO UP AND DOWN IN AUTOMATIC MODE

BME090358000W04

1

Driver-side front window does not go up and down in automatic mode

POSSIBLE CAUSE

• Open or short to B+ circuit in limit switch signal, ground signal from wiring harness (between power window main switch and driver-side front power window motor), inner control panel, or inner motor: Steps 3-5
• Open or short to B+/ground circuit in pulse generator signal from wiring harness (between power window main switch and driver-side front power window motor), inner control panel, or inner motor: Steps 6-10

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT WHETHER POWER WINDOW MAIN SWITCH ENTER FAIL-SAFE MODE OR NOT
• Did driver-side front window go up or down in automatic mode?
Yes
Recheck malfunction symptoms.
No
Go to next step. (Power window main switch may enter fail-safe mode.)
2*
VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW MAIN SWITCH AND DRIVER-SIDE FRONT POWER WINDOW MOTOR) OR ELSEWHERE
• Test voltage at power window main switch connector terminal 2B (limit switch signal).
• Is voltage approximately 5 V when driver-side front window is closed completely and 0 V when it is opened halfway?
Yes
Go to Step 6.
No
Go to next step.
3*
VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE FRONT POWER WINDOW MOTOR OR ELSEWHERE
• Turn ignition switch to LOCK position.
• Disconnect driver-side front power window motor.
• Turn ignition switch to ON position.
• Connect circuit tester negative probe to driver-side front power window motor connector terminal B, because it will be possible to inspect the motor connector terminal 2C (ground signal) line as well.
• Measure voltage at driver-side front power window motor connector terminal F (limit switch signal).
• Is voltage approximately 5 V?
Yes
Replace driver-side front power window motor (open or short to B+ in motor), then go to Step 11.
No
Go to next step.
4*
INSPECT WIRING HARNESS BETWEEN POWER WINDOW MAIN SWITCH AND DRIVER-SIDE FRONT POWER WINDOW MOTOR FOR CONTINUITY
• Turn ignition switch to LOCK position.
• Disconnect power window main switch connector.
• Is there continuity between the following power window main switch connector terminals and driver-side front power window motor connector terminals?
- 2B-F (limit switch signal)
- 2C-B (ground signal)
Yes
Go to next step.
No
Repair wiring harness between power window main switch and driver-side front power window motor, then go to Step 11.
5*
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 ON position.
• Measure voltage at the following power window main switch connector terminals:
- 2B (limit switch signal)
- 2C (ground signal)
• Is voltage approximately 12 V?
Yes
Repair wiring harness between power window main switch and driver-side front power window motor, then go to Step 11.
No
Replace power window main switch (open or short to B+ in power window main switch).
6*
VERIFY WHETHER MALFUNCTION IS IN POWER WINDOW MAIN SWITCH OR ELSEWHERE
• Test voltage at power window main switch connector terminal 2D (pulse generator signal).
• Does voltage alternate between 0 V and approximately 5 V when driver-side front window is being closed from the completely open position?
Yes
Replace power window main switch. (malfunction in power window main switch automatic mode control), then go to Step 11.
No
Go to next step.
7*
VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE FRONT POWER WINDOW MOTOR OR ELSEWHERE
• Turn ignition switch to LOCK position.
• Disconnect driver-side front power window motor.
• Measure voltage at driver-side front power window motor connector terminal D (pulse generator signal).
• Is voltage approximately 5 V?
Yes
Replace driver-side front power window motor (open or short to B+/ground in motor), then go to Step 11.
No
Go to next step.
8*
VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW MAIN SWITCH AND DRIVER-SIDE FRONT POWER WINDOW MOTOR) OR ELSEWHERE
• Turn ignition switch to LOCK position.
• Disconnect power window main switch connector and driver-side front power window motor connector.
• Is there continuity between power window main switch connector terminal 2D (pulse generator signal) and driver-side front power window motor connector terminal D (pulse generator signal)?
Yes
Go to next step.
No
Repair wiring harness between power window main switch and driver-side front power window motor, then go to Step 11.
9*
VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW MAIN SWITCH AND DRIVER-SIDE FRONT POWER WINDOW MOTOR) OR ELSEWHERE
• Is there continuity between power window main switch connector terminal 2D (pulse generator signal) and ground?
Yes
Repair wiring harness between power window main switch and driver-side front power window motor, then go to Step 11.
No
Go to next step.
10*
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 ON position.
• Measure voltage at power window main switch connector terminal 2D (pulse generator signal).
• Is voltage approximately 12 V?
Yes
Repair wiring harness between power window main switch and front driver-side power window motor, then go to next step.
No
Replace power window main switch (open or short to B+/ground in power window main switch), then go to next step.
11
RECHECK MALFUNCTION SYMPTOM AFTER REPAIR
• Reset the driver-side front power window motor.
• Did malfunction disappear?
Yes
• Troubleshooting completed.
• Explain repairs to customer.
No
Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.

* : :
When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals, and wiring harness are connected correctly and undamaged.