Toyota 4Runner manuals

Toyota 4Runner: System Diagram

SYSTEM DIAGRAM

Communication Table

Sender

Receiver

Signal

Line

Certification ECU

Power management control ECU

  • Engine immobiliser system set/unset signal
  • Engine start signal
  • Transponder valid signal
  • Steering unlock demand signal
  • Steering lock demand signal

LIN

Power management control ECU

Certification ECU

  • Key code recognition signal
  • Engine start operation signal
  • ACC relay activation signal
  • IG relay activation signal

ID code box

Certification ECU

  • Matching request random number signal
  • EFI code reception signal
  • Engine start permission demand reception signal
  • S code verification result signal
  • L code verification result signal
  • Steering unlock demand reception signal
  • Steering lock demand reception signal

Steering lock ECU

  • Steering lock release signal
  • Matching request random number signal

Steering lock ECU

Certification ECU

L code verification signal

System Description
SYSTEM DESCRIPTION 1. ENGINE IMMOBILISER SYSTEM DESCRIPTION (a) The engine immobiliser system determines whether or not to enable starting of the SFI system based on a comparison of the key ID cod ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the engine immobiliser system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO ...

Other materials about Toyota 4Runner:

Front Airbag Sensor RH Malfunction (B1610/13)
DESCRIPTION The front airbag sensor RH consists of the diagnostic circuit and frontal deceleration sensor, etc. If the center airbag sensor receives signals from the frontal deceleration sensor, it determines whether the SRS should be activated. DTC B16 ...

Inspection
INSPECTION CAUTION / NOTICE / HINT NOTICE: The master cylinder and piston are designed so that the piston can easily fall out. Prevent this by making sure the tip of the master cylinder faces downward when handling the master cylinder. M ...

© 2016-2021 | www.to4runner.net

0.0033