Heated Steering Wheel System Terminals Of Ecu

Steering. Land Cruiser. Urj200, 202 Grj200 Vdj200
Steering Column. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. CHECK HEATED STEERING WHEEL CONTROLLER

Heated Steering Wheel System -- Terminals Of Ecu



CHECK HEATED STEERING WHEEL CONTROLLER
HINT:
Inspect the connectors from the back side while the connectors are connected.

Land Cruiser. Urj200, 202 Grj200 Vdj200.Steering Column.Power Tilt And Power Telescopic Steering Column System.Heated Steering Wheel System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Terminal Description
    		Condition
    		Specified Condition
    A-1 (CCU) - Body ground
    		LED output signal
    		Ignition switch ON, Steering heater switch on
    		Below 3 V
    A-2 (CCV) - Body ground
    		Steering heater switch input signal
    		Ignition switch ON, Steering heater switch pressed and held
    		11 to 14 V
    A-3 (CCX) - Body ground
    		Ground
    		Always
    		Below 1 Ω
    A-4 (CCW) - Body ground
    		IG power supply
    		Ignition switch ON
    		11 to 14 V
    B-1 (TH1) - Body ground
    		Thermistor input signal
    		Ignition switch ON, Steering heater switch on at 0 to 40°C (32 to 104°F)
    		1.5 to 4.5 V*1
    B-2 (TH2) - Body ground
    		Thermistor ground
    		Ignition switch ON, Steering heater switch on
    		Below 1 V
    B-3 (SH2) - Body ground
    		Heater output signal
    		Ignition switch ON, Steering heater switch on
    		11 to 14 V*2
    B-4 (SH1) - Body ground
    		Heater ground
    		Ignition switch ON, Steering heater switch on
    		Below 1 V
    HINT:
    1. *1: When ambient temperature is 0 to 40°C (32 to 104°F).
    2. *2: The current to the heater turns ON/OFF depending on the temperature of the thermistor. As a result, it may take several minutes before a voltage value is output.