Toyota 4Runner manuals

Toyota 4Runner: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU

(Transmitter)

Receiving ECU

(Receiver)

Signal

Line

ECM

Power management control ECU

Crankshaft position sensor signal

CAN/Serial communication

Combination meter

Power management control ECU

Vehicle speed signal

CAN/Serial communication

Steering lock ECU

Power management control ECU

Steering lock/unlock signal

LIN/Serial communication

Certification ECU

Power management control ECU

LIN master signal

LIN

Power management control ECU

Certification ECU

ID required signal

LIN

Key existence condition signal

CAN

System Description
SYSTEM DESCRIPTION 1. PUSH-BUTTON START DESCRIPTION (a) The push-button start function uses a push-type engine switch, which the driver can operate by merely carrying the key. This system consists ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the push-button start function. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT T ...

Other materials about Toyota 4Runner:

Center Airbag Sensor Assembly Malfunction (B1000/31)
DESCRIPTION The center airbag sensor assembly consists of a deceleration sensor, safing sensor, drive circuit, diagnosis circuit, ignition control, etc. If the center airbag sensor assembly receives signals from the deceleration sensor, it determines whe ...

If the electronic key does not operate properly (vehicles with a smart key system)
If communication between the electronic key and vehicle is interrupted  or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control cannot be used. In such cases, the doors can be opened and ...

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