POWER STEERING SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    A015ZZ7E01

    Tech Tips

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

    Terminal No. (Symbol) Wiring Color Terminal Description
    A31-2 (CANH) B High-level CAN bus line
    A31-3 (CANL) R Low-level CAN bus line
    A31-4 (PIG) R Power source
    A31-5 (PGND) B Power ground
    A31-9 (IG) B-Y IG power source
    C4-1 (RZG) G Rotation angle sensor power source circuit ground
    C4-2 (SRZG) BR Rotation angle sensor shield ground
    C4-3 (RZV) B Rotation angle sensor power source
    C4-4 (TRQV) W Torque sensor power source
    C4-6 (TQG1) L-W Torque sensor power source circuit ground
    C4-7 (RZSN) W SIN phase input signal (Rotation angle sensor)
    C4-8 (RZCS) R COS phase input signal (Rotation angle sensor)
    C4-9 (INSN) G-W SIN phase input signal (torque sensor input shaft side)
    C4-10 (INCS) R-L COS phase input signal (torque sensor input shaft side)
    C4-11 (OUSN) G-B SIN phase input signal (torque sensor output shaft side)
    C4-12 (OUCS) Y-B COS phase input signal (torque sensor output shaft side)
    C4-13 (TQG2) R-B Torque sensor detection circuit ground
    C5-1 (V) W V phase motor output
    C5-2 (U) B U phase motor output
    C5-3 (W) R W phase motor output

  2. INSPECT WIRE HARNESS SIDE CONNECTOR

    A0162DIE01
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A31-4 (PIG) - A31-5 (PGND) R - B Power source Always Below 1 V
    A31-5 (PGND) - Body ground B - Body ground Power ground Always Below 1 Ω
    A31-9 (IG) - A31-5 (PGND) B-Y - B IG power source Engine switch on (IG) 11 to 14 V
    C5-2 (U) - C5-3 (W)/C5-1 (V) B - R/W U phase motor output Always Below 1 Ω
    C5-3 (W) - C5-2 (U)/C5-1 (V) R - B/W W phase motor output Always Below 1 Ω
    C5-1 (V) - C5-2 (U)/C5-3 (W) W - B/R V phase motor output Always Below 1 Ω