Toyota RAV4 manuals

Toyota Sienna Service Manual: Terminals of ECU

1. FOLD SEAT CONTROL ECU LH

FOLD SEAT CONTROL ECU LH

  1. Disconnect the fold seat control ECU connectors.
  2. Measure the voltage and resistance of the wire harness side connectors.

FOLD SEAT CONTROL ECU LH

If the result is not as specified, there may be a malfunction on the wire harness side.

  1.  Reconnect the fold seat control ECU connectors.
  2.  Measure the voltage of the connectors.

FOLD SEAT CONTROL ECU LH

FOLD SEAT CONTROL ECU LH

FOLD SEAT CONTROL ECU LH

If the result is not as specified, the fold seat control ECU may have a malfunction.

2. FOLD SEAT CONTROL ECU RH

FOLD SEAT CONTROL ECU RH

  1. Disconnect the fold seat control ECU connectors.
  2. Measure the voltage and resistance of the wire harness side connectors.

FOLD SEAT CONTROL ECU RH

If the result is not as specified, there may be a malfunction on the wire harness side.

  1.  Reconnect the fold seat control ECU connectors.
  2. Measure the voltage of the connectors.

FOLD SEAT CONTROL ECU RH

FOLD SEAT CONTROL ECU RH

FOLD SEAT CONTROL ECU RH

If the result is not as specified, the fold seat control ECU may have a malfunction.

Problem symptoms table
HINT:  Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspect Area" co ...

Diagnosis system
1. CHECK DLC3  The vehicle uses ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with SAE 1962 and matched the ISO 15765-4 format. If the resul ...

Other materials:

Absence of Registration Unit/ No Response for Connection Check/ Last Mode Error/ No Response Against ON / OFF Command/ Mode Status Error/ Slave Reset
DESCRIPTION HINT:  *1: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage.  *2: If the power connector is disconnected after the engine starts, this code is stored after 180 seconds.  *3: If the ...

Front Speed Sensor RH Circuit
DESCRIPTION The speed sensor detects wheel speed and transmits the appropriate signals to the ECU. These signals are used for control of the ABS control system. The front and rear rotors have 48 serrations each. When the rotors rotate, the magnetic field generated by the permanent magne ...

How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORK SHOP 2 CUSTOMER PROBLEM ANALYSIS 3 CHECK BODY MULTIPLEX COMMUNICATION SYSTEM Check for the DTC outputs. 4 DTC CHECK 5 DTC CHART 6 PROBLEM SYMPTOMS TABLE 7 TERMINAL OF ECU 8 CIRCUIT INSPECTION 9 IDENTIFICATION OF PROBLEM 10 REPAIR OR REPLACE 11 CONFIRMATION T ...

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