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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. (See DRIVER-SIDE POWER WINDOW MOTOR RESETTING.) • 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.