Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - STEERING COLUMN
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.
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: When ambient temperature is 0 to 40°C (32 to 104°F).
*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.