Can Communication System (For Rhd) Air Conditioning Amplifier Communication Stop Mode

Power Source Network. Land Cruiser. Urj200, 202 Grj200 Vdj200
Networking. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PRECAUTION

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CHECK FOR OPEN IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY CAN BRANCH WIRE)

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

CAN COMMUNICATION SYSTEM (for RHD) - Air Conditioning Amplifier Communication Stop Mode


DESCRIPTION


Detection Item
Symptom
Trouble Area
Air Conditioning Amplifier Communication Stop Mode
Either condition is met:
  1. "Air Conditioning Amplifier" is not displayed on "Bus Check".
  2. "Air Conditioning Amplifier Communication Stop Mode" in "DTC Combination Table" applies.
  1. Power source or inside air conditioning amplifier assembly
  2. Air conditioning amplifier assembly
  3. Air conditioning amplifier assembly CAN branch wire or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Air Conditioning Amplifier Communication Stop Mode


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
1.PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (Click here).

NEXT


2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.

    CAUTION:
    For vehicle with an SRS system:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
    NOTICE:
    When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).

NEXT


3.CHECK FOR OPEN IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER ASSEMBLY CAN BRANCH WIRE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Air Conditioning Amplifier Communication Stop Mode

  1. Disconnect the E35*1 or E81*2 air conditioning amplifier assembly connector.

    1. *1: w/ Rear Air Conditioning System
    2. *2: w/o Rear Air Conditioning System

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

    Standard Resistance:
    w/ Rear Air Conditioning System
    Tester Connection
    		Switch Condition
    		Specified Condition
    E35-3 (CANH) - E35-4 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    w/o Rear Air Conditioning System
    Tester Connection
    		Switch Condition
    		Specified Condition
    E81-11 (CANH) - E81-12 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    Text in Illustration
    *A
    		w/ Rear Air Conditioning System
    *B
    		w/o Rear Air Conditioning System
    *a
    		Front view of wire harness connector
    (to Air Conditioning Amplifier Assembly)


NG
REPAIR OR REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY CAN BRANCH WIRE OR CONNECTOR (CANH, CANL)
OK


4.CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Air Conditioning Amplifier Communication Stop Mode

  1. Connect the cable to the negative (-) battery terminal.

    NOTICE:
    When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).

  1. Disconnect the E36*1 or E81*2 air conditioning amplifier assembly connector.

    1. *1: w/ Rear Air Conditioning System
    2. *2: w/o Rear Air Conditioning System

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

    Standard Resistance:
    w/ Rear Air Conditioning System
    Tester Connection
    		Condition
    		Specified Condition
    E36-1 (GND) - Body ground
    		Always
    		Below 1 Ω
    E36-2 (E1) - Body ground
    		Always
    		Below 1 Ω
    w/o Rear Air Conditioning System
    Tester Connection
    		Condition
    		Specified Condition
    E81-14 (GND) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    w/ Rear Air Conditioning System
    Tester Connection
    		Condition
    		Specified Condition
    E36-6 (+B1) - Body ground
    		Always
    		11 to 14 V
    E36-7 (+B2) - Body ground
    		Always
    		11 to 14 V
    E36-5 (IG+) - Body ground
    		Ignition switch ON
    		11 to 14 V
    w/o Rear Air Conditioning System
    Tester Connection
    		Condition
    		Specified Condition
    E81-21 (+B1) - Body ground
    		Always
    		11 to 14 V
    E81-1 (IG+) - Body ground
    		Ignition switch ON
    		11 to 14 V
Text in Illustration
*A
w/ Rear Air Conditioning System
*B
w/o Rear Air Conditioning System
*a
Front view of wire harness connector
(to Air Conditioning Amplifier Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)