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:

Telephone Microphone
Components COMPONENTS ILLUSTRATION ILLUSTRATION Removal REMOVAL PROCEDURE 1. REMOVE DRIVE MONITOR SWITCH 2. REMOVE MAP LIGHT ASSEMBLY 3. REMOVE TELEPHONE MICROPHONE ASSEMBLY (a) Disconnect the 6 connectors. ...

Operation Check
OPERATION CHECK 1. CHECK AUTOMATIC RUNNING BOARD OPERATION (a) When side auto step switch assembly is "AUTO", the operation and condition of this control are described below. Check that the driver side automatic running board operates as follows ...

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