Toyota Sienna Service Manual: Slide Door Closer LH does not Operate

DESCRIPTION

The slide door ECU LH controls the slide door closer. In response to the output signals from the switches in the slide door lock, the slide door closer drives the closer motor.

HINT: The slide door closer system operates regardless of the power slide door main switch ON / OFF.

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT FUSE (ECU-B)

1. Inspect the ECU-B fuse

2 INSPECT SLIDE DOOR LOCK

1. Check that the slide door fully closes (fully locked) when the door is closed by hand.

3 POWER SOURCE RESET

1. Disconnect the ECU-B fuse and reconnect it. 10 seconds later, check that the slide door closer is operational.

4 INSPECT POWER SLIDE DOOR LOCK ASSEMBLY

1. Apply battery voltage to the terminals and check the motor operation.

OK

2. At each range of the latch, inspect the resistance of the pawl switch and latch switch.

Resistance

3. Inspect the resistance of the original position switch and handle switch.

Resistance

5 CHECK WIRE HARNESS (POWER SLIDE DOOR LOCK ASSEMBLY - POWER SLIDE DOOR ECU LH)

1. Disconnect the P29 door lock and P25 ECU connectors.
2. Check the resistance between the wire harness connectors.

Resistance (Check for open circuit)

3. Check the resistance between the P29 lock connector and body ground.

Resistance (Check for open circuit)

REPLACE POWER SLIDE DOOR ECU LH