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Terminals Of Ecu

  1. CHECK POWER STEERING ECU 
    Fig 1: ECU Connector Terminal Identification - Power Steering
    GTY225218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *1 Power Steering ECU - -
    1. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F41-3 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F41-2 (CANL) - F41-1 (CANH) W - L CAN communication Ignition switch off 54 to 69 Ω
      F41-5 (IG) - F41-3 (GND) G - W-B IG power supply Ignition switch ON 11 to 14 V
      F41-7 (SOF+) - F41-8 (SOF-) V - LG Power steering solenoid valve signal
      • Engine idling
      • Steering wheel turned to right or left
      Pulse generation

      If the result is not as specified, the ECU may have a malfunction.