Toyota Tundra (2015 year). Manual — part 270

Last Modified: 9-16-2014

6.6 J

Doc ID: RM0000028G400SX

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: AUTO LSD Indicator Light Remains ON; 2015

MY Tundra [08/2014 - ]

AUTO LSD Indicator Light Remains ON

DESCRIPTION

the AUTO LSD function is activated and the AUTO LSD indicator light illuminates.

WIRING DIAGRAM

INSPECTION PROCEDURE

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...

A

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 (AUTO LSD 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 AUTO LSD indicator light using the Techstream.

ABS/VSC/TRAC

TESTER DISPLAY

TEST PART

CONTROL RANGE

DIAGNOSTIC NOTE

Auto LSD Indicator Light

AUTO LSD indicator light

ON / OFF

Observe combination meter

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

Techstream.

OK:

The AUTO LSD indicator light turns on and off in accordance with the Techstream operation.

HINT:

NG

GO TO METER / GAUGE SYSTEM

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...

OK

OK

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: ...

(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: ...