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

BME090358000204

1 | Driver-side front window does not go up and down in automatic mode
POSSIBLE CAUSE | • Open circuit or short to B+ circuit in limit switch signal, ground signal from wiring harness (between the power window main switch and the driver-side front power window motor), inner control panel, or inner motor • Open circuit or short to B+/ground circuit in pulse generator signal from wiring harness (between the power window main switch and the driver-side front power window motor), inner control panel, or inner motor

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT WHETHER POWER WINDOW MAIN SWITCH ENTER FAIL-SAFE MODE OR NOT • Did the driver-side front window go up or down in automatic mode? | Yes | Recheck malfunction symptoms.
No | Go to the 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 the voltage at the power window main switch terminal 2B (limit switch signal). • Is the voltage approximately 5 V when the driver-side front window is closed completely and 0 V when it is opened halfway? | Yes | Go to Step 6.
No | Go to the next step.
3* | VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE FRONT POWER WINDOW MOTOR OR ELSEWHERE • Turn the ignition switch to LOCK position. • Disconnect the driver-side front power window motor. • Turn the 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 motor connector terminal 2C (ground signal) line as well.
• Measure the voltage at driver-side front power window motor terminal F (limit switch signal).
• Is the voltage approximately 5 V?
Yes
Replace the driver-side front power window motor (open circuit or short to B+ in motor), then go to Step 11.
No | Go to the next step.
4* | INSPECT WIRING HARNESS BETWEEN POWER WINDOW MAIN SWITCH AND DRIVER-SIDE FRONT POWER WINDOW MOTOR FOR CONTINUITY • Turn the ignition switch to LOCK position. • Disconnect the power window main switch connector. • Is there continuity between the following power window main switch connector terminals and driver-side front power window motor terminals?

  - 2B-F (limit switch signal)
  - 2C-B (ground signal)

Yes
Go to the next step.
No | Repair the wiring harness between the power window main switch and the 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 the ignition switch to ON position. • Measure the voltage at the following power window main switch terminals:

  - 2B (limit switch signal)
  - 2C (ground signal)

• Is the voltage approximately 12 V?
Yes
Repair the wiring harness between the power window main switch and the driver-side front power window motor, then go to Step 11.
No | Replace the power window main switch (open circuit or short to B+ in power window main switch).
6* | VERIFY WHETHER MALFUNCTION IS IN POWER WINDOW MAIN SWITCH OR ELSEWHERE • Test the voltage at power window main switch terminal 2D (pulse generator signal). • Does the voltage alternate between 0 V and approximately 5 V when the driver-side front window is being closed from the completely open position? | Yes | Replace the power window main switch. (malfunction in power window main switch automatic mode control), then go to Step 11.
No | Go to the next step.
7* | VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE FRONT POWER WINDOW MOTOR OR ELSEWHERE • Turn the ignition switch to LOCK position. • Disconnect the driver-side front power window motor. • Measure the voltage at driver-side front power window motor terminal D (pulse generator signal).
• Is the voltage approximately 5 V?
Yes
Replace the driver-side front power window motor (open circuit or short to B+/ground in motor), then go to Step 11.
No | Go to the 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 the ignition switch to LOCK position. • Disconnect the power window main switch connector and the driver-side front power window motor connector.
• Is there continuity between power window main switch terminal 2D (pulse generator signal) and driver-side front power window motor terminal D (pulse generator signal)?
Yes
Go to the next step.
No | Repair the wiring harness between power window main switch and the 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 terminal 2D (pulse generator signal) and ground? | Yes | Repair the wiring harness between the power window main switch and the driver-side front power window motor, then go to Step 11.
No | Go to the 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 the ignition switch to ON position. • Measure the voltage at power window main switch terminal 2D (pulse generator signal).
• Is the voltage approximately 12 V?
Yes
Repair the wiring harness between the power window main switch and the front driver-side power window motor, then go to the next step.
No | Replace power window main switch (open circuit or short to B+/ground in power window main switch), then go to the 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.