Toyota Sienna Service Manual: Mirror Motor Circuit

DESCRIPTION

A mirror control switch signal and memorized mirror positions are sent to the outer mirror control ECU.

The outer mirror control ECU drives the selected mirror UP, DOWN, LEFT and RIGHT in response to the inputs.

HINT: The power mirror control system is part of the large-scale multiplex communication system. This system features shared communication wiring that reduces the wiring complexity of the communication lines. The first step in any repair is to confirm the proper operation of the communication system. Proceed with troubleshooting after the communication has been verified (See Multiplex Communication System).

WIRING DIAGRAM

INSPECTION PROCEDURE

1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER

1. Connect the intelligent tester to the DLC3.
2.  Ignition switch on.
3.  Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST.
4. Select the ACTIVE TEST, use the intelligent tester to issue a control command, and then check that the outer rear view mirrors.

MIRROR-L/MIRROR-R

OK: Outer mirror operate normally.

2 INSPECT OUTER REAR VIEW MIRROR

1. Outer rear view mirror LH: Disconnect the O13 connector.
2. Apply battery voltage and check operation of the mirror face.

Standard

3. Outer rear view mirror RH: Disconnect the O14 connector.
4.  Apply battery voltage and check operation of the mirror face.

Standard

3 CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR - OUTER MIRROR CONTROL ECU)

1. Disconnect the O10 or O12 ECU connector.
2. Measure the resistance according to the value(s) in the table below.

Resistance

*1: LH side
*2: RH side

REPLACE OUTER MIRROR CONTROL ECU