Terminals Of Ecu

1. TERMINALS OF ECU

Skid Control ECU (Brake Actuator Assembly)

15|14|13 12|11110 9 8 1 7 1 6 5

A

O

Q

1

26 25|24 23 22|21120 19 18|17 16

O

Symbols (Terminal No.)

Terminal Description

GND2 (1)

Actuator pump motor ground

+BM (2)

Motor relay power supply

+BS (3)

Solenoid valves power supply

GND1 (4)

Skid control ECU ground

FL+ (5)

Front LH (+) wheel speed signal input

FL- (6)

Front LH (-) wheel speed signal input

RL+ (7)

Front LH (+) wheel speed signal input

RR- (8)

Rear RH (-) wheel speed signal input

FR- (9)

Front RH (-) wheel speed signal input

FR+ (10)

Front RH (+) wheel speed signal input

D/G (11)

Diagnosis tester communication line

RRO (13)

Rear right wheel speed signal output

PKB (14)

Parking brake switch input

CANL (15)

CAN communication line L

RL- (17)

Rear LH (-) wheel speed signal input

IG1 (18)

ECU power supply

RR+ (19)

Rear RH (+) wheel speed signal input

STP (20)

Stop light switch input

SP1 (23)

Speed signal output for speedometer

RLO (24)

Rear left wheel speed signal output

TS (25)

Sensor check input

CANH (26)

CAN communication line H

2. TERMINAL INSPECTION

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

Skid Control ECU (harness side connector)

HINT:

Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.

Symbols (Terminal No.)

Wiring Color

Terminal Description

Condition

Specified Condition

GND2 (1) - Body ground

W-B - Body ground

Actuator pump motor ground

Always

Below 1 Q

+BM (2) - Body ground

B - Body ground

Motor relay power supply

Always

10 to 14 Q

+BS (3) - Body ground

W - Body ground

Solenoid valves power supply

Always

10 to 14 Q

GND1 (4) - Body ground

W-B - Body ground

Skid control ECU ground

Always

Below 1 Q

PKB (14) - Body ground

L - Body ground

Parking brake switch input

Parking brake switch ON

Below 1 Q

PKB (14) - Body ground

L - Body ground

Parking brake switch input

Parking brake switch OFF

10 to 14 V

IG1 (18) - Body ground

BR - Body ground

ECU power supply

Ignition switch on (IG)

10 to 14 V

STP (20) - Body ground

L-B - Body ground

Stop light switch input

Stop light switch ON (Brake pedal depressed)

8 to 14 V

STP (20) - Body ground

L-B - Body ground

Stop light switch input

Stop light switch OFF (Brake pedal released)

Below 3 V

ABS Warning Light

Brake Warning

Light

USA:

USA:

ABS

BRAKE

Canada:

Canada:

(0)

(©)

I037946E04

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