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.

    B007462C14
    *a

    Component with harness connected

    (VGRS ECU [Front Steering Control ECU])

    		 - -
    Standard
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A56-1 (PGND) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A56-2 (PIG) - Body ground R - Body ground Power supply Always 11 to 14 V
    O15-1 (BMW) - O15-2 (BMV)/O15-3 (BMU) R - W/B Steering actuator motor signal (W phase) Engine switch off Below 1 Ω
    O15-2 (BMV) - O15-3 (BMU)/O15-1 (BMW) W - B/R Steering actuator motor signal (V phase) Engine switch off Below 1 Ω
    O15-3 (BMU) - O15-2 (BMV)/O15-1 (BMW) B - W/R Steering actuator motor signal (U phase) Engine switch off Below 1 Ω
    O15-5 (SG) - O16-13 (PGD2) GR - W-B Steering actuator motor signal shielded ground Always Below 1 Ω
    O17-2 (LV) - Body ground Y - Body ground Power source for steering actuator lock Engine switch on (IG) 11 to 14 V
    O17-3 (S1) - Body ground W - Body ground Steering actuator motor rotation angle sensor signal Engine switch on (IG) Sine wave
    O17-5 (S2) - Body ground R - Body ground Steering actuator motor rotation angle sensor signal Engine switch on (IG) Sine wave
    O17-6 (LG) - Body ground L - Body ground Steering actuator lock ground Engine running 100 kΩ or higher
    O17-8 (RG) - Body ground G - Body ground Steering actuator resolver common ground Always Below 1 Ω
    O17-9 (RV) - Body ground B- Body ground Steering actuator resolver excitation output voltage Engine switch on (IG) Sine wave
    O17-10 (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
    O16-1 (+BO) - Body ground SB - Body ground Steering sensor power supply line Always 11 to 14 V
    O16-2 (CNH2) - O16-8 (CNL2) R - B CAN communication Engine switch off 54 to 69 Ω
    O16-3 (CNH1) - O16-9 (CNL1) GR - B CAN communication Engine switch off 54 to 69 Ω
    O16-4 (IG) - Body ground R - Body ground IG Power supply Engine switch on (IG) 11 to 14 V
    O16-5 (SS1-) - Body ground L - Body ground Steering sensor signal Engine running and steering wheel turned Pulse generation
    O16-6 (SS1+) - Body ground LG - Body ground Steering sensor signal Engine running and steering wheel turned slowly Pulse generation
    O16-7 (+BI) - Body ground L - Body ground ECU power supply Always 11 to 14 V
    O16-10 (CAN+) - O16-11 (CAN-) LG - B Local CAN communication Engine switch off 54 to 69 Ω
    O16-13 (PGD2) - Body ground W-B - Body ground VGRS ECU (Front steering control ECU) ground Always Below 1 Ω