Lin Communication System Rain Sensor Lin Communication Malfunction

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (RAIN SENSOR - WIND SHIELD WIPER ECU)

CHECK HARNESS AND CONNECTOR (RAIN SENSOR BATTERY AND BODY GROUND)

REPLACE RAIN SENSOR

LIN COMMUNICATION SYSTEM - Rain Sensor LIN Communication Malfunction


DESCRIPTION

The LIN communication of the components related to the rain sensor occurs between the rain sensor and windshield wiper ECU.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Lin Communication System Rain Sensor Lin Communication Malfunction


INSPECTION PROCEDURE

NOTICE:
  1. When using the GTS with the ignition switch off to troubleshoot:
    Connect the GTS to the vehicle, and turn a courtesy switch on and off at 1.5 second intervals until communication between the GTS and vehicle begins.
  2. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (RAIN SENSOR - WIND SHIELD WIPER ECU)

  1. Disconnect the E147 windshield wiper ECU connector.

  1. Disconnect the R11 rain sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R11-1 (MPX) - E1147-14 (MPX1)
    		Always
    		Below 1 Ω
    R11-1 (MPX) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (RAIN SENSOR BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Lin Communication System Rain Sensor Lin Communication Malfunction

  1. Disconnect the rain sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R11-2 (ES) - Body ground
    		Always
    		Below 1 Ω
    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    R11-4 (SIG) - Body ground
    		Ignition switch off → Ignition switch ON
    		Below 1 V → 11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Rain Sensor)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.REPLACE RAIN SENSOR

  1. Temporarily replace the rain sensor with a new one (Click here).

  1. Check the rain sensor function is normal.

    OK:
    Rain sensor function is normal.


NG
REPLACE WINDSHIELD WIPER ECU (Click here)
OK

END (RAIN SENSOR IS DEFECTIVE)