Toyota 4Runner manuals

Toyota 4Runner: System Diagram

SYSTEM DIAGRAM


Communication Table

Sender

Receiver

Signal

Line

Main Body ECU

Certification ECU

  • Front door courtesy light switch LH signal
  • Front door courtesy light switch RH signal
  • Rear door courtesy light switch LH signal
  • Rear door courtesy light switch RH signal
  • Back door courtesy light switch signal
  • Steering wheel location information (vehicle type) signal
  • Door lock position signal
  • Back door control switch signal

CAN

Power Management Control ECU

Certification ECU

  • IG signal
  • ACC signal
  • Engine switch signal

LIN

Combination Meter Assembly

  • Certification ECU
  • Main Body ECU

Vehicle speed signal

CAN

Steering Lock ECU

Certification ECU

  • Encryption code signal
  • Encryption code finish signal
  • Encryption calculate fixed number memory requirement signal
  • During entry control signal

LIN

ID Code Box

Certification ECU

Matching request random number signal

LIN

Certification ECU

Combination Meter Assembly

  • Inside key existence warning signal
  • Low key battery warning signal
  • Shift position warning signal
  • Meter buzzer request signal
  • Door open indicate signal
  • Steering lock warning signal

CAN

Certification ECU

Main Body ECU

  • Entry door lock signal
  • Entry door unlock signal
  • Door lock/unlock standby control signal
  • Wireless door lock buzzer sound signal

CAN

Certification ECU

Power Management Control ECU

  • Immobiliser ID entry required signal
  • Key code check signal

LIN

Certification ECU

ID Code Box

Replay ID code signal

LIN

Multiplex Network Door ECU (Back Door P/W)

Main Body ECU

Back door control switch signal

LIN

System Description
SYSTEM DESCRIPTION CAUTION: If using a pacemaker, be sure to read the manual of the pacemaker before using the key, as the radio waves of the key may affect the pacemaker. 1. SMART KEY SYSTEM DES ...

Customize Parameters
CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that ...

Other materials about Toyota 4Runner:

Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS 1. DESCRIPTION HINT: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected through the ECU data monitor function of the Techstream. (a) Turn the igniti ...

Wireless remote control/electronic key battery
Replace the battery with a new one if it is depleted. You will need the following items: • Flathead screwdriver • Lithium battery CR2016 (vehicles without a smart key system), or CR1632 (vehicles with a smart key system) Replacing the battery (vehic ...

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