Toyota RAV4 manuals

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
  • Power back door ECU
  • Wire harness

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK HARNESS AND CONNECTOR (POWER BACK DOOR ECU - BATTERY)

CHECK HARNESS AND CONNECTOR (POWER BACK DOOR ECU - BATTERY)

  1. Disconnect the P14 and P13 ECU connectors.
  2. Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

2 CHECK HARNESS AND CONNECTOR (POWER BACK DOOR ECU - GROUND)

CHECK HARNESS AND CONNECTOR (POWER BACK DOOR ECU - GROUND)

  1. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 CHECK COMMUNICATION LINE

CHECK COMMUNICATION LINE

  1. Disconnect the G4 ECU connector.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

Result

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. ...

Can communication
...

Other materials:

Crankshaft Position - Camshaft Position Correlation
DTC P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) DTC P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) DTC P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A) DTC P0019 Crankshaft Position - Camshaft Position Corr ...

Power mirror control system (w/o Memory)
PARTS LOCATION Problem symptoms table POWER MIRROR CONTROL SYSTEM Symptom Suspected area Mirror does not operate Outer mirror switch assembly Outer rear view mirror assembly Wire harness Mirror operates abnormally O ...

Adjustment procedure
Hold the steering wheel and push the lever down. Adjust to the ideal position by moving the steering wheel horizontally and vertically. After adjustment, pull the lever up to secure the steering wheel. ...

В© 2011-2026 Copyright www.tsienna.net