Diagnosis Procedure

POWER WINDOW SERIAL LINK


FRONT POWER WINDOW SWITCH (PASSENGER SIDE) FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Description

Power window main switch, front power window switch (passenger side) and BCM transmit and receive the signal by power window serial link.
The signal mentioned below is transmitted from BCM to power window main switch, front power window switch (passenger side).
- Keyless power window down signal
The signal mentioned below is transmitted from power window main switch to front power window switch (passenger side).
- Front passenger side door window operation signal
- Power window control by key cylinder switch signal
- Power window lock switch signal
- Retained power operation signal




POWER WINDOW SERIAL LINK


FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Diagnosis Procedure

1.CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check signal between front power window switch (passenger side) harness connector and ground.





Is the inspection result normal?
YES - Replace front power window switch (passenger side). Power Window Main Switch.
NO - GO TO 2.
2.CHECK POWER WINDOW SERIAL LINK SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Turn ignition switch ON.
4. Check voltage between front power window switch (passenger side) harness connector and ground.





Is the inspection result normal?
YES - Replace power window main switch. Power Window Main Switch.
NO - GO TO 3.
3.CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and front power window switch (passenger side) connector.





4. Check continuity between BCM connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal and Installation.
NO - Repair or replace harness.