Toyota Sienna Service Manual: Back Door Courtesy Switch Circuit
DESCRIPTION
The fold seat control ECU receives signals from the back door courtesy switch and detects the state of the back door (open/close). If the ECU does not detect that the back door is open, the seat stowing and return functions are not available.
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 BACK DOOR COURTESY SWITCH
- Disconnect the connector from the back door courtesy switch.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - BACK DOOR COURTESY SWITCH)
- Disconnect the connectors 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 - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
REPLACE FOLD SEAT CONTROL ECU
Park / Neutral Position Switch Circuit
DESCRIPTION
The fold seat control ECU receives signals from the Park/Neutral position
switch and controls the seat
stowing and return operations. If the shift lever is in any position other than
...
Indicator Circuit
DESCRIPTION
This system has two indicator lights. One of the indicator lights is built
into the fold seat switch. This
indicator light receives power from the fold seat control ECU. It comes on or ...
Other materials:
Driver Side Outer Mirror
DTC B1209 Driver Side Outer Mirror
DESCRIPTION
This DTC is detected when communication between the outer mirror control ECU
LH and multiplex
network gateway ECU stops for more than 10 seconds
DTC No.
DTC Detection Condition
Trouble Area
B1209
Driver sid ...
Occupant Classification System Malfunction
DTC B1150/23 Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag
sensor assembly and the occupant
classification ECU.
If the center airbag sensor assembly receives signals from the occupant
classification ECU, it d ...
Installation
1. INSTALL CENTER REAR SEAT LAP TYPE BELT
ASSEMBLY (for 8-Passenger)
HINT:
Refer to the instructions for reassembly of the rear No. 1 seat assembly (for
center seat).
Install the center rear seat lap type belt assembly
with the bolt.
Torque: 42 N*m (430 kgf*cm, 31 ft.*lbf)
2. I ...
