Toyota 4Runner Quiz
Vehicle Interior

System Diagram

In this manual: Vehicle Interior
General — 25Audio / Visual / Telematics — 283Brake — 187Drivetrain — 204Power Source / Network — 79Steering — 76Suspension — 130Vehicle Exterior — 391Vehicle Interior — 693
~1min read
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

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.