Toyota Sienna Service Manual: Fold Seat Switch Circuit
DESCRIPTION
When the fold seat switch is operated, a switch operation signal is sent to the fold seat control ECU. The ECU receives switch operation signals from each switch and activates the folding motor, reclining motor, and release actuator.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FOLD SEAT CONTROL ECU
- Remove the fold seat control ECU with connectors still connected.
- Measure the voltage according to the value(s) in the table below.
Standard voltage: LH side
RH side
2 INSPECT FOLD SEAT SWITCH
- Remove the fold seat switch.
- Disconnect the connector from the fold seat switch.
- Measure the resistance according to the value(s) in the table below.
Standard resistance: LH side
RH side
3 CHECK HARNESS AND CONNECTOR (FOLD SEAT SWITCH - FOLD SEAT CONTROL ECU)
- Disconnect the connector from the fold seat control ECU.
- Measure the resistance according to the value(s) in the table below.
Standard resistance: LH side
RH side
4 CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY SWITCH - FOLD SEAT SWITCH)
- Disconnect the connector from the back door courtesy switch.
- Measure the resistance according to the value(s) in the table below.
Standard resistance: LH side
RH side
5 INSPECT BACK DOOR COURTESY SWITCH
- Measure the resistance according to the value(s) in the table below.
Standard resistance
6 CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY SWITCH - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
REPLACE FOLD SEAT CONTROL ECU
Power Source Circuit
DESCRIPTION
Power is supplied to the fold seat control ECU through the L-RR2 SEAT and
R-RR2 SEAT fuses.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (L-RR2 SEAT, R-RR2 SEAT)
Re ...
Folding Motor Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the fold
seat switch and activates the
folding motor. At this time, the Hall IC (seat cushion position sensor) detects ...
Other materials:
Registering a Bluetooth®
phone for the
first time
To use the hands-free system, it is necessary to register a
Bluetooth® phone with the system.
Once the phone has been registered, it is possible to use the
hands-free system.
For details about registering a Bluetooth® device
Turn the Bluetooth® connection setting of your cellular phon ...
Short in Curtain Shield Squib RH Circuit
DTC B1160/83 Short in Curtain Shield Squib RH Circuit
DESCRIPTION
The curtain shield squib RH circuit consists of the center airbag sensor
assembly and the curtain shield
airbag assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1160/83 is record ...
Installation
1. INSTALL THROTTLE BODY
Install a new throttle body gasket to the intake air
surge tank.
Install the throttle body with the 4 bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
Connect the 2 water by-pass hoses.
Connect the throttle body connector and clamp.
2. ...
