VARIABLE GEAR RATIO STEERING SYSTEM TERMINALS OF ECU


  1. CHECK VGRS ECU (FRONT STEERING CONTROL ECU)

    Tech Tips

    Inspect the connectors from the backside while they are connected.

    A01FFKOE01
    Text in Illustration
    *a

    Component with harness connected

    (VGRS ECU [Front Steering Control ECU])

    		 - -
    Standard
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A31-1 (PGND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A31-2 (PIG) - Body ground R - Body ground Power supply Always 11 to 14 V
    N102-1 (BMW) - N102-2 (BMV)/N102-3 (BMU) R - W/B Steering actuator motor signal (W phase) Engine switch off Below 1 Ω
    N102-2 (BMV) - N102-3 (BMU)/N102-1 (BMW) W - B/R Steering actuator motor signal (V phase) Engine switch off Below 1 Ω
    N102-3 (BMU) - N102-2 (BMV)/N102-1 (BMW) B - W/R Steering actuator motor signal (U phase) Engine switch off Below 1 Ω
    N102-5 (SG) - N104-13 (PGD2) BR - W-B Steering actuator motor signal shielded ground Always Below 1 Ω
    N103-2 (LV) - Body ground Y - Body ground Power source for steering actuator lock Engine switch on (IG) 11 to 14 V
    N103-3 (S1) - Body ground W - Body ground Steering actuator motor rotation angle sensor signal Engine switch on (IG) Sine wave
    N103-5 (S2) - Body ground R - Body ground Steering actuator motor rotation angle sensor signal Engine switch on (IG) Sine wave
    N103-6 (LG) - Body ground L - Body ground Steering actuator lock ground Engine running 100 kΩ or higher
    N103-8 (RG) - Body ground G - Body ground Steering actuator resolver common ground Always Below 1 Ω
    N103-9 (RV) - Body ground B- Body ground Steering actuator resolver excitation output voltage Engine switch on (IG) Sine wave
    N103-10 (SG2+) - Body ground Shielded - Body ground Shielded ground wire for steering actuator motor rotation angle sensor signal wire and control signal wire Always Below 1 Ω
    N104-1 (+BO) - Body ground P - Body ground Steering sensor power supply line Always 11 to 14 V
    N104-2 (CNH2) - N104-8 (CNL2) G - SB CAN communication Engine switch off 54 to 69 Ω
    N104-3 (CNH1) - N104-9 (CNL1) V*1 - W CAN communication Engine switch off 54 to 69 Ω
    R*2 - W
    N104-4 (IG) - Body ground L - Body ground IG Power supply Engine switch on (IG) 11 to 14 V
    N104-5 (SS1-) - Body ground R - Body ground Steering sensor signal Engine running and steering wheel turned Pulse generation
    N104-6 (SS1+) - Body ground W - Body ground Steering sensor signal Engine running and steering wheel turned slowly Pulse generation
    N104-7 (+BI) - Body ground GR - Body ground ECU power supply Always 11 to 14 V
    N104-10 (CAN+) - N104-11 (CAN-) W - LG Local CAN communication Engine switch off 54 to 69 Ω
    N104-13 (PGD2) - Body ground W-B - Body ground VGRS ECU (front steering control ECU) ground Always Below 1 Ω

    • *1: for LHD

    • *2: for RHD