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

BHE090358000W05

1 | Driver-side front window does not go up and down in automatic mode
POSSIBLE CAUSE | • Open or short to B+ circuit in position sensor 1 signal, ground signal from wiring harness (between power window main switch and driver-side front power window motor), inner power window main switch, or inner motor: Steps 3-6 • Open or short to B+/ground circuit in position sensor 2 signal from wiring harness (between power window main switch and driver-side front power window motor), inner power window main switch, or inner motor: Steps 7-11 Note • The automatic function and the ignition off timer function do not operate while power window main switch is in fail-safe mode. The fail-safe operates when position sensor 1, and/or position sensor 2 power supply malfunctions. • Position sensor 1 and/or 2 malfunction – When driver-side front window is kept up down, main switch can not sense a pulse signal from position sensor 1 during that can sense 5 pulses (2.5 cycles) from position 2. – When driver-side front window is kept up down, main switch can not sense a pulse signal from position sensor 2 during that can sense 5 pulses (2.5 cycles) from position 1. – There are 3 abnormal pulse from a pulse signal during driver-side front window is kept up or down. – There are 20 cycle pulses from a close position during driver-side front window is kept up. – There is no pulse signal during 1 sec. after down is operated from fully closed position.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT WHETHER POWER WINDOW MAIN SWITCH ENTERS 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 • Turn ignition switch ON position. • Test voltage at power window main switch connector terminal O (position sensor 1 signal). • Is voltage alternate between 0 V and approx. 12 V when driver-side front window is being gone up and down? | Yes | Go to Step 7.
No | Go to next step.
3 | 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 approx. 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 12.
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? – O-H (position sensor 1 signal) – C-E (position sensor power supply) – M-F (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 12.
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: – O (position sensor 1 signal) – M (ground signal) • Is voltage approx. 12 V? | Yes | Repair wiring harness between power window main switch and driver-side front power window motor, then go to Step 12.
No | Go to next step.
6 | VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN POWER WINDOW MAIN SWITCH AND DRIVER-SIDE FRONT POWER WINDOW MOTOR) OR ELSEWHERE • Is continuity between following power window main switch connector terminals and ground? – O (position sensor 1 signal) – C (position sensor power supply) | Yes | Replace wiring harness between power window main switch and driver-side front power window motor, then go to Step 12.
No | Go to next step.
7 | VERIFY WHETHER MALFUNCTION IS IN POWER WINDOW MAIN SWITCH OR ELSEWHERE • Turn ignition switch to ON position. • Test voltage at power window main switch connector terminal P (position sensor 2 signal). • Does voltage alternate between 0 V and approx. 12 V when driver-side front window is being gone up down? | 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.
8 | VERIFY POSITION SENSOR 2 OUTPUT SIGNAL • Turn ignition switch to ON position. • Test voltage at driver-side front power window motor connector terminal G (position sensor 2 signal). • Is voltage alternate between 0 V and approx. 12 V when driver-side front window is being gone up down? | Yes | Go to next step.
No | Replace driver-side front power window motor, then go to Step 12.
9 | 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 P (position sensor 2 signal) and driver-side front power window motor connector terminal G (position sensor 2 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 12.
10 | 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 P (position sensor 2 signal) and ground? | Yes | Repair wiring harness between power window main switch and driver-side front power window motor, then go to Step 12.
No | Go to next step.
11 | 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 P (position sensor 2 signal). • Is voltage approx. 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.
12 | 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.