VARIABLE GEAR RATIO STEERING SYSTEM TERMINALS OF ECU


  1. CHECK STEERING CONTROL ECU

    Tech Tips

    Inspect the connectors from the back side while they are connected.

    A01H282E04
    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    A42-3 (IG) - A42-7 (PGND) P - W-B Power supply (P-IG1-3 fuse) Power switch ON (IG) 11 to 14 V
    A42-4 (CAN+) - A42-9 (CAN-) Y - L CAN communication Power switch ON (IG) Pulse generation
    A42-7 (PGND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A42-8 (PIG) - A42-7 (PGND) L - W-B Power supply (VGRS fuse) Power switch ON (IG) 11 to 14 V
    A42-10 (+BI) - A42-7 (PGND) R - W-B Power supply (P MPX-B fuse) Always 11 to 14 V
    A43-1 (BMV) - A42-7 (PGND) W - W-B Steering actuator motor signal (V phase) Power switch ON (READY) Sine wave
    A43-2 (BMU) - A42-7 (PGND) B - W-B Steering actuator motor signal (U phase) Power switch ON (READY) Sine wave
    A43-3 (BMW) - A42-7 (PGND) L - W-B Steering actuator motor signal (W phase) Power switch ON (READY) Sine wave
    A43-6 (SG) - A43-8 (PGD2) BR - W-B Steering actuator motor signal shield ground Always Below 1 Ω
    A43-8 (PGD2) - Body ground W-B - Body ground Steering control ECU ground Always Below 1 Ω
    A41-1 (+BO) - A42-7 (PGND) R - W-B Steering sensor power supply line Always 11 to 14 V
    A41-3 (LV) - A42-7 (PGND) Y - W-B Power source for steering actuator lock Power switch ON (IG) 11 to 14 V
    A41-4 (S1) - A42-7 (PGND) W - W-B Steering actuator motor rotation angle sensor signal Power switch ON (IG) Sine wave
    A41-6 (RV) - A42-7 (PGND) B - W-B Steering actuator resolver excitation output voltage Power switch ON (IG) Sine wave
    A41-7 (SIL) - A42-7 (PGND) V - W-B Diagnostic communication signal Power switch ON (IG) Pulse generation
    A41-9 (CANH) - A41-20 (CANL) B - W CAN communication Power switch ON (IG) Pulse generation
    A41-10 (SS1-) - A42-7 (PGND) LG - W-B Steering angle sensor signal Power switch ON (READY), steering wheel is turned Pulse generation
    A41-12 (LG) - A42-7 (PGND) L - W-B Steering actuator lock ground Power switch ON (READY) Pulse generation
    A41-14 (S2) - A42-7 (PGND) R - W-B Steering actuator motor rotation angle sensor signal Power switch ON (IG) Sine wave
    A41-15 (RG) - A42-7 (PGND) G - W-B Steering actuator resolver common ground Always Below 1 Ω
    A41-16 (SG2+) - A42-7 (PGND) Shielded - W-B Ground for steering actuator motor rotation angle sensor signal wire and control signal wire shield wire Power switch ON (IG) Pulse generation
    A41-19 (SS1+) - A42-7 (PGND) L - W-B Steering angle sensor signal Power switch ON (READY), steering wheel is turned 3 to 4 V