Toyota Sienna Service Manual: Back Door ECU Communication Stop
DTC B1287 Back Door ECU Communication Stop
DESCRIPTION
DTC B1287 is output when communication between the power back door ECU and the multiplex network gateway ECU stops for more than 10 seconds.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
B1287 |
Back door ECU communication stops |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (POWER BACK DOOR ECU - BATTERY)
- Disconnect the P14 and P13 ECU connectors.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR (POWER BACK DOOR ECU - GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 CHECK COMMUNICATION LINE
- Disconnect the G4 ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Result
REPLACE POWER BACK DOOR ECU
Airbag ECU Communication Stop
DTC B1281 Airbag ECU Communication Stop
DESCRIPTION
DTC B1281 is output when communication between the airbag ECU and the
multiplex network gateway
ECU stops for more than 10 seconds.
...
Other materials:
Back Door Closer does not Operate
DESCRIPTION
The power back door ECU controls the back door closer system. In response to
the signals output from
the switches related to the back door lock, the back door latch activates the
closer motor.
HINT:
The back door closer system operates regardless of whether the power back door
...
Installation
1. INSTALL FRONT SHOULDER BELT ANCHOR
ADJUSTER ASSEMBLY
Install the front shoulder belt anchor adjuster
assembly with the bolt.
Torque: 42 N*m (430 kgf*cm, 31 ft.*lbf)
2. INSTALL CENTER PILLAR UPPER GARNISH
3. INSTALL FRONT SEAT OUTER BELT ASSEMBLY
NOTICE:
Do not disassemble ...
Folding down the third seats (manual seats)
Before folding the third seats
Fold the outside head
restraints and lower the center
head restraint to the lowest
position , and
stow the seat belt buckles.
Stow the center seat belt.
Folding down the third seatbacks
Pull the “TO FOLD/LIFT SEATBACK”
strap a
Return ...
