VEHICLE STABILITY CONTROL SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    B001Z0ZE16
    Text in Illustration
    *a

    Component without harness connected

    (Skid Control ECU [Master Cylinder Solenoid])

    		 - -
    Terminal No. (Symbol) Terminal Description
    1 (GND1) Skid control ECU (Master cylinder solenoid) ground
    2 (+BM1) Power supply for motor
    3 (FR+) Front speed sensor RH power supply output
    4 (FL-) Front speed sensor LH input
    5 (RR+) Rear speed sensor RH power supply output
    6 (RL-) Rear speed sensor LH input
    7 (STP) Stop light switch
    9 (CSW) VSC OFF switch
    11 (CANH) CAN communication terminal H
    12 (SP1) Speedometer signal
    13 (ATRC) CRAWL speed selector switch
    16 (STPO) BRK LP relay (Brake light relay)
    17 (FR-) Front speed sensor RH input
    18 (FL+) Front speed sensor LH power supply output
    19 (RR-) Rear speed sensor RH input
    20 (RL+) Rear speed sensor LH power supply output
    21 (TRM2) CRAWL speed selector switch
    24 (TS) Sensor test terminal (Signal check switch)
    25 (CANL) CAN communication terminal L
    27 (EXI) Center differential lock switch
    29 (EXI4) Turn assist function switch signal
    30 (BZ)* Skid control buzzer
    31 (+BS) Power supply for solenoid
    32 (GND2) Skid control ECU (Master cylinder solenoid) ground
    41 (LBL) Brake fluid level warning switch
    43 (TRS) CRAWL ON/OFF switch
    44 (TRM1) CRAWL speed selector switch
    45 (STP2) BRK LP relay (Brake light relay)
    46 (IG1) IG1 power supply

    • *: w/ Dynamic Radar Cruise Control System

    B001YMOE05
    Text in Illustration
    *a

    Component without harness connected

    (Skid Control ECU [Master Cylinder Solenoid])

    		 - -
    Terminal No. (Symbol) Terminal Description
    1 (IG2) IG2 power supply
    2 (+BM2) Power supply for motor
    4 (GND3) Skid control ECU (Master cylinder solenoid) ground

  2. TERMINAL INSPECTION

    Disconnect the connector and measure the voltage or resistance on the wire harness side.

    Tech Tips

    Voltage cannot be measured with the connector connected to the skid control ECU (master cylinder solenoid) as the connector is watertight.

    B001YJ0E04
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Skid Control ECU [Master Cylinder Solenoid])

    		 - -
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A24-2 (+BM1) - Body ground B

    Power supply for motor

    (From battery)

    		 Always 11 to 14 V
    A24-7 (STP) - Body ground R Stop light switch Brake pedal depressed → released 8 to 14 V → Below 1.5 V
    A24-9 (CSW) - Body ground

    G

    G-W*

    		 VSC OFF switch input VSC OFF switch off → on 10 kΩ or higher → Below 1 Ω
    A24-16 (STPO) - Body ground

    SB

    R-Y*

    		 BRK LP relay (Brake light relay) Ignition switch off → ON Below 1 V → 11 to 14 V
    A24-31 (+BS) - Body ground W

    Power supply for solenoid

    (From battery)

    		 Always 11 to 14 V
    A24-41 (LBL) - Body ground

    P

    BR-Y*

    		 Brake fluid level warning switch (Brake master cylinder reservoir sub-assembly) Brake fluid level +/-5 mm (+/-0.197 in.) from the minimum level → maximum level Below 1 Ω → 1.9 to 2.1 kΩ
    A24-45 (STP2) - Body ground R BRK LP relay (Brake light relay) Brake pedal depressed → released 8 to 14 V → Below 1.5 V
    A24-46 (IG1) - Body ground G IG1 power supply Ignition switch off → ON Below 1 V → 11 to 14 V
    A25-1 (IG2) - Body ground B IG2 power supply Ignition switch off → ON Below 1 V → 11 to 14 V
    A25-2 (+BM2) - Body ground B

    Power supply for motor

    (From battery)

    		 Always 11 to 14 V
    A24-1 (GND1) - Body ground W-B Ground Always Below 1 Ω
    A24-32 (GND2) - Body ground W-B Ground Always Below 1 Ω
    A25-4 (GND3) - Body ground W-B Ground Always Below 1 Ω

    • *: URJ202L-GNTEKC