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:

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: When removing the symbol emblem, No. 1 back door emblem and No. 1 roof side mark, heat the vehicle body, symbol emblem, No. 1 back door emblem and No. 1 roof side mark using a heat light. Standard: Ite ...

Radiator Grille
Components COMPONENTS ILLUSTRATION Removal REMOVAL PROCEDURE 1. REMOVE UPPER RADIATOR SUPPORT SEAL 2. REMOVE FRONT BUMPER COVER 3. REMOVE FRONT BUMPER COVER (w/ Intuitive Parking Assist System) 4. REMOVE RADIATOR GRILLE (a) ...

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