Toyota Sienna Service Manual: Mirror Switch Circuit
DESCRIPTION
- A switch signal of the outer mirror switch is transmitted to the selected outer mirror control ECU by way of the body ECU. Then, the outer mirror control ECU activates the mirror motor to move the mirror UP, DOWN, RIGHT and LEFT in response to the inputs.
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
INSPECTION PROCEDURE
1 INSPECT OUTER MIRROR SWITCH
- Remove the outer mirror control switch.
- Measure the resistance according to the value(s) in the table below when the switch is operated.
Resistance
*1: The L or R of the left / right adjustment switch.
2 CHECK WIRE HARNESS (OUTER MIRROR SWITCH - MAIN BODY ECU RH)
- Disconnect the B6 ECU connector.
- Measure the resistance according to the value(s) in the table below.
Resistance
PROCEED TO NEXT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Door Mirror Foot Light Circuit
DESCRIPTION
When the outer mirror control ECU receives the signal(s) from the body ECU
through BEAN
communication, it illuminates the foot light. The foot light is installed on the
bottom of the ...
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 RIG ...
Other materials:
Reassembly
1. Install position indicator slide cover
(a) Install the position indicator slide cover No.2 to the
position indicator slide cover.
2. INSTALL POSITION INDICATOR SLIDE COVER
(a) Install the position indicator slide cover to the shift
lever assembly.
(b) Install the shift lever slide cov ...
Basic inspection
When a malfunction is not confirmed by the DTC check,
troubleshooting should be carried out in all circuits
considered to be possible causes of the problem. In many
cases, by carrying out the basic engine check shown in the
following flowchart, the location of the problem can be found
quickly a ...
Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION
The meter CPU receives engine coolant temperature signals from the ECM via
the multiplex
communication lines. The meter CPU displays engine coolant temperature that is
calculated based on the
data received from the ECM.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
If there is ...
