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

OFF operation switch signal

LIN

A/C switch signal

Rear defogger operation switch signal

Mode operation switch signal

REC/FRS switch signal

Set temperature switch signal

Blower operation switch signal

  • *: w/ PTC Heater
System Description
SYSTEM DESCRIPTION 1. GENERAL (a) The air conditioning system has the following controls. Control Outline Manual Control The air conditioning ampli ...

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:

Back Door Power Window Switch ON Stuck (B2312)
DESCRIPTION This DTC is stored when the back door power window regulator motor is stuck. NOTICE: When a power window regulator is reinstalled or replaced, the power window control system must be initialized. Back Door P/W DTC Code ...

Back Camera Disconnected (C1622)
DESCRIPTION This DTC is stored if the radio and display receiver assembly judges that the signals or signal lines between the radio and display receiver assembly, and the rear television camera assembly are not normal as a result of its self check. ...

© 2016-2021 | www.to4runner.net

0.0053