Last Modified: 11-29-2007 1.6 J
Service Category: Brake Section: Brake Control/Dynamic Control System
Model Year: 2008 Model: Sequoia Doc ID: RM000001CGO016X
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: WIRING DIAGRAM (2008 Sequoia)

Brake Warning Light does not Come ON

WIRING DIAGRAM

Refer to Brake Warning Light Remains ON BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)+ .

INSPECTION PROCEDURE

NOTICE:

When replacing the VSC actuator assembly, perform zero point calibration BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION (2008 Sequoia) .

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system DTC is output NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM (2008 Sequoia) .

Result

Result

Proceed to

DTC is not output

A

DTC is output

B
A

2.

PERFORM ACTIVE TEST USING TECHSTREAM (BRAKE WARNING LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream ON.

(d) Select Active Test mode and operate the BRAKE warning light using the Techstream.

ABS/VSC/TRAC

Tester Display

Test Part

Control Range

Diagnostic Note

Brake Warning Light

Brake warning light

Warning light ON/OFF

Observe combination meter

(e) Check that the BRAKE warning light turns on and off in the combination meter using the Techstream.

OK:

The BRAKE warning light turns ON and OFF in accordance with the Techstream operation.

OK