POWER STEERING SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    A01GZ1HE03

    Tech Tips

    The power steering ECU uses waterproof connectors. Therefore, voltage or waveforms cannot be checked with the connectors connected to the vehicle.

    Terminal No. (Symbols) Wiring Color Terminal Description
    A44-1 (CA2H) R High-level CAN bus line
    A44-2 (CA1H) B High-level CAN bus line
    A44-3 (CA1L) W Low-level CAN bus line
    A44-4 (PIG) B Power source
    A44-5 (PGND) W-B Power ground
    A44-6 (+B) R +B
    A44-7 (WDD1) G DC / DC warning output signal
    A44-8 (CA2L) G Low-level CAN bus line
    A44-9 (IG) G IG power source
    A44-10 (ASST) L DC / DC demand output signal
    C1-1 (V) W V phase motor output
    C1-2 (U) B U phase motor output
    C1-3 (W) R W phase motor output
    C2-1 (RZG) B Rotation angle sensor power source circuit ground
    C2-2 (SRZG) BR Rotation angle sensor shield ground
    C2-3 (RZV) G Rotation angle sensor power source
    C2-4 (TRQV) W Torque sensor power source
    C2-6 (TQG1) L-W Torque sensor power source circuit ground
    C2-7 (RZSN) R SIN phase input signal (rotation angle sensor)
    C2-8 (RZCS) W COS phase input signal (rotation angle sensor)
    C2-9 (INSN) G-W SIN phase input signal (torque sensor input shaft side)
    C2-10 (INCS) R-L COS phase input signal (torque sensor input shaft side)
    C2-11 (OUSN) G-B SIN phase input signal (torque sensor output shaft side)
    C2-12 (OUCS) Y-B COS phase input signal (torque sensor output shaft side)
    C2-13 (TQG2) R-B Torque sensor detection circuit ground

  2. CHECK WIRE HARNESS SIDE CONNECTOR

    A01GZH5E03

    Terminal No.

    (Symbols)

    		 Wiring Color Terminal Description Condition Specified Condition
    A44-4 (PIG) - A44-5 (PGND) B - W-B Power source Power switch ON (READY) 30 to 50 V
    A44-5 (PGND) - Body ground W-B - Body ground Power ground Always Below 1 Ω
    A44-9 (IG) - A44-5 (PGND) G - W-B IG power source Power switch ON (IG) 11 to 14 V
    C1-2 (U) - C1-3 (W)/C1-1 (V) B - R/W U phase motor output Always Below 1 Ω
    C1-3 (W) - C1-2 (U)/C1-1 (V) R - B/W W phase motor output Always Below 1 Ω
    C1-1 (V) - C1-2 (U)/ C1-3 (W) W - B/R V phase motor output Always Below 1 Ω