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.

    B000YRKC21
    *a

    Component with harness connected

    (VGRS ECU [Front Steering Control ECU])

    		 - -
    Standard
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A18-1 (PGND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A18-2 (PIG) - Body ground R - Body ground Power supply Always 11 to 14 V
    P70-1 (BMW) - P70-2 (BMV)/P70-3 (BMU) R - W/B Steering actuator motor signal (W phase) Engine switch off Below 1 Ω
    P70-2 (BMV) - P70-3 (BMU)/P70-1 (BMW) W - B/R Steering actuator motor signal (V phase) Engine switch off Below 1 Ω
    P70-3 (BMU) - P70-2 (BMV)/P70-1 (BMW) B - W/R Steering actuator motor signal (U phase) Engine switch off Below 1 Ω
    P70-5 (SG) - Body ground BR - Body ground Steering actuator motor signal shielded ground Always Below 1 Ω
    P71-2 (LV) - Body ground Y - Body ground Power source for steering actuator lock Engine switch on (IG) 11 to 14 V
    P71-3 (S1) - Body ground W - Body ground Steering actuator motor rotation angle sensor signal Engine switch on (IG) Sine wave
    P71-5 (S2) - Body ground R - Body ground Steering actuator motor rotation angle sensor signal Engine switch on (IG) Sine wave
    P71-6 (LG) - Body ground L - Body ground Steering actuator lock ground Engine running 100 kΩ or higher
    P71-8 (RG) - Body ground G - Body ground Steering actuator resolver common ground Always Below 1 Ω
    P71-9 (RV) - Body ground B- Body ground Steering actuator resolver excitation output voltage Engine switch on (IG) Sine wave
    P71-10 (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
    P72-1 (+BO) - Body ground V - Body ground Steering sensor power supply line Always 11 to 14 V
    P72-2 (CNH2) - P72-8 (CNL2) P - W CAN communication Engine switch off 54 to 69 Ω
    P72-3 (CNH1) - P72-9 (CNL1) L - W CAN communication Engine switch off 54 to 69 Ω
    P72-4 (IG) - Body ground LA-R - Body ground IG Power supply Engine switch on (IG) 11 to 14 V
    P72-5 (SS1-) - Body ground R - Body ground Steering sensor signal Engine running and steering wheel turned Pulse generation
    P72-6 (SS1+) - Body ground W - Body ground Steering sensor signal Engine running and steering wheel turned Pulse generation
    P72-7 (+BI) - Body ground B - Body ground ECU power supply Always 11 to 14 V
    P72-10 (CAN+) - P72-11 (CAN-) LG - W Local CAN communication Engine switch off 54 to 69 Ω
    P72-13 (PGD2) - Body ground W-B - Body ground VGRS ECU (Front steering control ECU) ground Always Below 1 Ω