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
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Can communication
...

Other materials:

Disposal
HINT: On the RH side, use the same procedures as on the LH side. 1. DISPOSE OF BACK DOOR STAY SUB-ASSEMBLY LH Horizontally fix the stay in a vise with the piston-rod pulled out. Wearing safety glasses, gradually cut a part between A and B as shown in the illustration using a metal ...

Automatic transaxle unit
COMPONENTS ...

Installation
1. INSTALL NO.1 NAVIGATION BRACKET  Install the No.1 navigation bracket with the 4 screws. 2. INSTALL NO.2 NAVIGATION BRACKET  Install the No.2 navigation bracket with the 4 screws. 3. INSTALL INSTRUMENT CLUSTER FINISH PANEL UPPER  Install the instrum ...

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