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Toyota Sienna Service Manual: Mirror Switch Circuit

DESCRIPTION

HINT: The power mirror control system is part of the multiplex communication system (BEAN). 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

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT OUTER MIRROR SWITCH

 INSPECT OUTER MIRROR SWITCH

  1. Remove the outer mirror control switch.
  2.  Measure the resistance according to the value(s) in the table below when the switch is operated.

Resistance

Resistance

*1: The L or R of the left / right adjustment switch.

2 CHECK WIRE HARNESS (OUTER MIRROR SWITCH - MAIN BODY ECU RH)

CHECK WIRE HARNESS (OUTER MIRROR SWITCH - MAIN BODY ECU RH)

  1. Disconnect the B6 ECU connector.
  2. Measure the resistance according to the value(s) in the table below.

Resistance

Resistance

PROCEED TO NEXT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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