Toyota RAV4 manuals

Toyota Sienna Service Manual: System description

1. MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  1. The BEAN communication line is used to control the combination meter, the A/C amplifier, the airbag sensor assembly, the multiplex network body ECU, the power slide door ECU LH, the power slide door ECU RH, the power back door ECU, the seat position control ECU, the outer mirror control ECU LH, and the outer mirror ECU RH. If there is a shortcircuit (bus-down) in the line, the communication to the system that has a short-circuit (bus-down) will be disabled and the DTC concerning the system will be output from the multiplex network gateway ECU.

MULTIPLEX COMMUNICATION SYSTEM

MULTIPLEX COMMUNICATION SYSTEM

  1. If the DTC of ECU communication stop is output, connectors may be disconnected, or communication buses may be open at 2 points. It will not become abnormal with only 1 communication bus open.

MULTIPLEX COMMUNICATION SYSTEM

  1. If 2 communication buses are open at the points shown in the illustration, the DTC of ECU communication stop between those 2 buses is output.

2. CHECK COMMUNICATION FUNCTION

  1. Check the battery voltage.

    Standard voltage: 11 to 14 V

  2. Inspect the DTC output.
  1. Check a DTC concerning the multiplex network body ECU by connecting the intelligent tester to the DLC3 and turning the ignition switch to the ON position.
  2. When the display shows DTCs concerning the ECU unconnected and the communication bus defective, perform the inspection depending on the troubleshooting procedures.

HINT: When another DTC is output, refer to the DTC table and check the applicable section.

Multiplex communication system
PARTS LOCATION ...

How to proceed with troubleshooting
HINT: Troubleshoot in accordance with the procedures on the following pages. 1 VEHICLE BROUGHT TO WORKSHOP 2 DTC CHECK Check for DTCs and make a note of the code that is output (See page MP- ...

Other materials:

Input Signal Circuit Malfunction
DTC P0607 Input Signal Circuit Malfunction DESCRIPTION This DTC indicates internal abnormalities of the ECM. DTC No. Detection Item Trouble Area P0607 The ECM has a supervisory CPU and control ECU inside. When each input STP signal is different for 0.15 ...

Third outside seats
To use Pull the head restraints up. To fold Press the button Removing the head restraints Front and second outside seats Pull the head restraint up while pressing the lock release button. Second center* and third center seats Pull the head restraint up while pressi ...

Camshaft Position "A" - Timing Over
HINT: If DTC P0011, P0012, P0021 or P0022 is present, check the VVT (Variable Valve Timing) system. DESCRIPTION Refer to DTC P0010 (See page ES-75). DTC No. DTC Detection Condition Trouble Area P0011 P0021 Advanced cam timing: With warm engine and engine spee ...

В© 2011-2022 Copyright www.tsienna.net