Rear LH
POWER WINDOW SERIAL LINK
REAR LH : Description
- Main power window and door lock/unlock switch, power window and door lock/unlock switch RH, rear power window switch LH, rear power window switch RH and BCM communicate via the power window serial link.
- The keyless power window down signal is transmitted from BCM to main power window and door lock/unlock switch and power window and door lock/unlock switch RH, rear power window switch LH and rear power window switch RH.
- The following signals are transmitted from main power window and door lock/unlock switch to power window and door lock/unlock switch RH, rear power window switch LH, rear power window switch RH:
- Front door window RH operation
- Rear door window LH operation
- Rear door window RH operation
- Power window control by key cylinder switch
- Power window lock switch
- Retained accessory power operation
POWER WINDOW SERIAL LINK
REAR LH : Diagnosis Procedure
Regarding Wiring Diagram information, Power Window Main Switch.
1. CHECK REAR POWER WINDOW SWITCH LH
1. Remove Intelligent Key, and close all doors.
2. Check signal between BCM connector M18 terminal 40 and ground with oscilloscope when door lock and unlock switch (key cylinder switch) is turned to "LOCK" or "UNLOCK".
3. Check that signals which are shown in the figure below can be detected during 10 seconds just after door lock and unlock switch (key cylinder switch) is turned to "LOCK" or "UNLOCK".
Is the inspection result normal?
YES - Power window serial link is OK.
NO - GO TO 2
2. CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector M18 and rear power window switch LH connector.
3. Check continuity between BCM connector M18 (A) terminal 40 and rear power window switch LH connector D207 (B) terminal 16.
4. Check continuity between BCM connector M18 (A) terminal 40 and ground.
Is the inspection result normal?
YES - Replace rear power window switch LH. LH&RH Front Window Anti-Pinch.
NO - Repair or replace harness or connectors.