Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

1. TERMINALS OF ECU

Text in Illustration

*1

Component without harness connected

(Brake Actuator (Skid Control ECU))

Terminal No. (Symbol)

Terminal Description

1 (GND2)

Pump motor ground

2 (+BM)

Motor relay power supply

3 (+BS)

Solenoid relay power supply

4 (GND1)

Skid control ECU ground

5 (FL-)

Front wheel speed LH (-) signal input

6 (RL+)

Rear wheel speed LH (+) signal input

8 (RR+)

Rear wheel speed RH (+) signal input

9 (FR+)

Front wheel speed RH (+) signal input

10 (FR-)

Front wheel speed RH (-) signal input

11 (D/G)

Diagnosis tester communication line

13 (STP2)

Stop light control relay input

14 (CANL)

CAN communication line L

16 (TS)

Sensor check input

17 (CSW)

VSC OFF switch input

20 (FSW+)

Brake pedal load sensing switch input

26 (FL+)

Front wheel speed LH (+) signal input

27 (RL-)

Rear wheel speed LH (-) signal input

28 (IG1)

ECU power supply

29 (RR-)

Rear wheel speed RH (-) signal input

30 (STP)

Stop light switch input

33 (SP1)

Speed signal output for speedometer

35 (CANH)

CAN communication line H

39 (STP0)

Stop light control relay output

2. TERMINAL INSPECTION

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

Text in Illustration

*1

Front view of wire harness connector

(to Brake Actuator (Skid Control ECU))

HINT:

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

Standard

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

A42-1 (GND2) - Body ground

W-B - Body ground

Pump motor ground

Always

Below 1 Ω

A42-2 (+BM) - Body ground

Y - Body ground

Motor relay power supply

Always

11 to 14 V

A42-3 (+BS) - Body ground

GR - Body ground

Solenoid relay power supply

Always

11 to 14 V

A42-4 (GND1) - Body ground

W - Body ground

Skid control ECU ground

Always

Below 1 Ω

A42-13 (STP2) - Body ground

R - Body ground

Stop light control relay input

Stop light switch ON → OFF (Brake pedal depressed → released)

8 to 14 V → Below 1.5 V

A42-17 (CSW) - Body ground

LG - Body ground

VSC OFF switch input

VSC OFF switch held ON → OFF (Not pressed)

Below 1 Ω → 10 kΩ or higher

A42-20 (FSW+) - Body ground

R - Body ground

Brake pedal load sensing switch input

Brake pedal load sensing switch OFF → ON (Brake pedal depressed → released)

950 to 1050 Ω → 203 to 223 Ω

A42-28 (IG1) - Body ground

GR - Body ground

ECU power supply

Ignition switch ON

11 to 14 V

A42-30 (STP) - Body ground

P - Body ground

Stop light switch input

Stop light switch ON → OFF (Brake pedal depressed → released)

8 to 14 V → Below 1.5 V

A42-39 (STP0) - Body ground

BR - Body ground

Stop light control relay output

Ignition switch ON

11 to 14 V

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