Toyota 4Runner manuals

Toyota 4Runner: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitter

Receiver

Signal

Communication Line

Air conditioning amplifier assembly

ECM

A/C idle up request signal

CAN

Heater idle up request signal

PTC heater control request signal*

Electricity load at low voltage state signal

Ambient temperature signal

Main body ECU

Air conditioning amplifier assembly

Main body request signal

Combination meter assembly

Air conditioning amplifier assembly

Vehicle speed signal

ECM

Air conditioning amplifier assembly

Engine coolant temperature signal

Engine speed data

Engine type information signal

Heater control assembly

Air conditioning amplifier assembly

AUTO operation switch signal

LIN

OFF operation switch signal

A/C switch signal

Front defroster operation switch signal

Rear defogger operation switch signal

Mode operation switch signal

REC/FRS switch signal

Set temperature switch signal

Blower operation switch signal (up, down)

  • *: w/ PTC Heater
System Description
SYSTEM DESCRIPTION 1. GENERAL (a) The air conditioning system has the following controls. Control Outline Neural Network Control This control is ca ...

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

Other materials about Toyota 4Runner:

If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle's battery is discharged. You can also call your Toyota dealer or a qualified repair shop. If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt batt ...

Seat heaters
1. On The indicator light comes on. 2. Adjusts the seat temperature The further you move the dial forward, the warmer the seat becomes. The seat heaters can be used when Vehicles without a smart key system The engine switch is in the “ON” positi ...

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