Air Conditioning System (For Manual Air Conditioning System) Air Conditioning Control Panel Circuit

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Heating Air Conditioning. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - AIR CONDITIONING CONTROL)

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL - BATTERY AND BODY GROUND)

REPLACE AIR CONDITIONING CONTROL ASSEMBLY

CHECK AIR CONDITIONING CONTROL ASSEMBLY

AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) - Air Conditioning Control Panel Circuit


DESCRIPTION

This circuit consists of the air conditioning control assembly and air conditioning amplifier assembly. When the air conditioning control assembly is operated, signals are transmitted to the air conditioning amplifier assembly through the LIN communication system.
If the LIN communication system malfunctions, the air conditioning amplifier assembly does not operate when the air conditioning control assembly is operated.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Manual Air Conditioning System) Air Conditioning Control Panel Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses and relays for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - AIR CONDITIONING CONTROL)

  1. Disconnect the E81 air conditioning amplifier assembly connector.

  1. Disconnect the F10 air conditioning control assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E81-37 (LIN1) - F10-5 (LIN1)
    		Always
    		Below 1 Ω
    F10-5 (LIN1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Manual Air Conditioning System) Air Conditioning Control Panel Circuit

  1. Disconnect the F10 air conditioning control assembly connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F10-7 (IG+) - F10-1 (GND)
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		11 to 14 V

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F10-1 (GND) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Air Conditioning Control Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.REPLACE AIR CONDITIONING CONTROL ASSEMBLY

  1. Temporarily replace the air conditioning control assembly with a new or normally functioning one (Click here).


NEXT


4.CHECK AIR CONDITIONING CONTROL ASSEMBLY

  1. Operate the air conditioning control assembly to check that it functions properly.

    OK:
    Air conditioning control assembly operates normally.


NG
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)
OK

END (AIR CONDITIONING CONTROL ASSEMBLY IS FAULTY)