Toyota Venza: VSC OFF Indicator Light Remains ON

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / VSC OFF Indicator Light Remains ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

Pressing the VSC OFF switch turns off traction control and pressing and holding this switch turns off traction and VSC controls. If VSC control is turned off, the VSC OFF indicator light will come on.

WIRING DIAGRAM

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output (See page ).

Result	Proceed to
DTC is not output	A
DTC is output	B

INSPECT CAN COMMUNICATION SYSTEM

2.	CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

(a) Check if the skid control ECU connector is securely connected.

OK:

The connector is securely connected.

CONNECT CONNECTOR TO ECU CORRECTLY

3.	CHECK BATTERY

(a) Check the battery voltage.

Standard Voltage:

11 to 14 V

Result	Proceed to
OK	A
NG (for 2GR-FE)	B
NG (for 1AR-FE)	C

CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2GR-FE)

CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 1AR-FE)

4.	READ VALUE USING TECHSTREAM (VSC OFF SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

ABS/VSC/TRAC

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
TRAC/VSC Off Mode	VSC OFF switch / Normal, TRC OFF, Unknown or VSC OFF	Normal: Normal mode TRC OFF: TRAC off mode Unknown: Unspecified VSC OFF: VSC off mode	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

TRAC/VSC Off Mode

VSC OFF switch / Normal, TRC OFF, Unknown or VSC OFF

Normal: Normal mode

TRC OFF: TRAC off mode

Unknown: Unspecified

VSC OFF: VSC off mode

(d) Using the Techstream, check the switch condition on the Techstream changes according to VSC OFF switch operation.

OK:

The Techstream display changes according to VSC OFF switch operation.

GO TO STEP 6

5.	INSPECT COMBINATION METER ASSEMBLY

(a) Turn the ignition switch off.

(b) Turn the ignition switch to ON and check the VSC OFF indicator light will come on for approximately 3 seconds (initial check).

(d) Check the accessory meter.

Result	Proceed to
OK	A
NG (Initial check is normal, and the VSC OFF indicator light does not turn on or off in accordance with the Techstream operation)	B
NG (Initial check is abnormal)	C

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page ).

REPLACE BRAKE ACTUATOR ASSEMBLY

REPLACE COMBINATION METER ASSEMBLY

REPLACE ACCESSORY METER ASSEMBLY

6.	INSPECT VSC OFF SWITCH

(a) Turn the ignition switch off.

(b) Disconnect the VSC OFF switch connector.

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
6 (+) - 3 (E)	Switch is pushed in	Below 1 Ω
6 (+) - 3 (E)	Switch is not pushed in	10 kΩ or higher

REPLACE VSC OFF SWITCH

7.	CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

(a) Disconnect the skid control ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A42-17 (CSW) - D2-6 (+)	Always	Below 1 Ω
A42-17 (CSW) - Body ground	Always	10 kΩ or higher
D2-3 (E) - Body ground	Always	Below 1 Ω

Text in Illustration

Front view of wire harness connector

(to Brake Actuator (Skid Control ECU))

Front view of wire harness connector

(to VSC OFF Switch)

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step (See page ).

REPLACE BRAKE ACTUATOR ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

TRAC OFF Indicator Light does not Come ON

DESCRIPTION The skid control ECU is connected to the combination meter via CAN communication. WIRING DIAGRAM Refer to TRAC OFF Indicator Light Remains ON (See page ). PROCEDURE 1. ...

VSC OFF Indicator Light does not Come ON

DESCRIPTION The skid control ECU is connected to the combination meter via CAN communication. WIRING DIAGRAM Refer to VSC OFF Indicator Light Remains ON (See page ). PROCEDURE 1. ...

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