ANTI-LOCK BRAKE SYSTEM (for Sedan) > TERMINALS OF ECU



TERMINALS OF ECU
C146351E01
Text in Illustration 
*a
Component without harness connected
(Skid Control ECU)

Terminal No. (Symbol)
Terminal Description
A15-1 (GND1)
Skid control ECU ground
A15-4 (RL-)
Rear wheel speed LH (-) signal input
A15-5 (RL+)
Rear wheel speed LH (+) power supply output
A15-6 (FR-)
Front wheel speed RH (-) signal input
A15-7 (FR+)
Front wheel speed RH (+) power supply output
A15-12 (+BS)
Solenoid relay power supply
A15-13 (GND2)
Pump motor ground
A15-14 (CANL)
CAN communication line L
A15-16 (RR-)
Rear wheel speed RH (-) signal input
A15-17 (RR+)
Rear wheel speed RH (+) power supply output
A15-18 (FL-)
Front wheel speed LH (-) signal input
A15-19 (FL+)
Front wheel speed LH (+) power supply output
A15-24 (+BM)
Motor relay power supply
A15-25 (CANH)
CAN communication line H
A15-28 (STP)
Stop light switch input
A15-34 (IG1)
ECU power supply

TERMINAL INSPECTION


    C231272E10
  1. Disconnect the connector and measure the voltage or resistance on the wire harness side.

    HINT:
    Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.
    Text in Illustration 
    *a
    Front view of wire harness connector
    (to Skid Control ECU)

    Standard 
    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    A15-1 (GND1) - Body ground
    W-B
    Skid control ECU ground
    Always
    Below 1 Ω
    A15-12 (+BS) - Body ground
    W
    Solenoid relay power supply
    Always
    11 to 14 V
    A15-13 (GND2) - Body ground
    W-B
    Pump motor ground
    Always
    Below 1 Ω
    A15-28 (STP) - Body ground
    G
    Stop light switch input
    Stop light switch ON → OFF
    (Brake pedal depressed → released)
    8 to 14 V
    → Below 1.5 V
    A15-24 (+BM) - Body ground
    B
    Motor relay power supply
    Always
    11 to 14 V
    A15-25 (CANH) - A15-14 (CANL)
    G-W
    CAN BUS
    Ignition switch off
    54 to 69 Ω
    A15-34 (IG1) - Body ground
    B
    ECU power supply
    Ignition switch ON
    11 to 14 V