Toyota Tundra (2015 year). Manual — part 265

Last Modified: 9-16-2014

6.6 J

Doc ID: RM0000028G200TX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: VSC OFF Indicator Light Remains ON; 2015 MY

Tundra [08/2014 - ]

VSC OFF Indicator Light Remains ON

DESCRIPTION

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

When the vehicle is changed to 4WD (L4L mode), VSC control turns off and the VSC OFF indicator light

illuminates.

WIRING DIAGRAM

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...

A

INSPECTION PROCEDURE

NOTICE:

When replacing the VSC actuator assembly, perform zero point calibration

.

PROCEDURE

1.

INSPECT CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output

.

Result

RESULT

PROCEED TO

DTC is not output

A

DTC is output

B

B

GO TO CAN COMMUNICATION SYSTEM

2.

PERFORM ACTIVE TEST USING TECHSTREAM (VSC OFF INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Select the Active Test mode and operate the VSC OFF indicator light using the Techstream.

ABS/VSC/TRAC

TESTER DISPLAY

TEST PART

CONTROL RANGE

DIAGNOSTIC NOTE

VSC OFF Indicator Light

VSC OFF indicator light

ON / OFF

Observe combination meter

(e) Check that the VSC OFF indicator light turns on and off in the combination meter when using the

Techstream.

OK:

The VSC OFF indicator light turns on and off in accordance with the Techstream operation.

HINT:

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...

OK

OK

NG

GO TO METER / GAUGE SYSTEM

3.

INSPECT VSC OFF SWITCH

(a) Remove the VSC OFF switch

.

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

Standard Resistance:

TESTER CONNECTION

SWITCH CONDITION

SPECIFIED CONDITION

6 - 9

Switch is pressed

Below 1 Ω

Switch is not pressed

10 kΩ or higher

NG

REPLACE VSC OFF SWITCH

4.

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

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...

(a) Disconnect the A17 ECU connector.

(b) Disconnect the J22 switch connector.

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

Standard Resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

A17-4 (CSW) - J22-9

Always

Below 1 Ω

A17-4 (CSW) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

REPLACE VSC ACTUATOR ASSEMBLY

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...