Toyota Avalon Service & Repair Manual: Slip Indicator Light Remains ON

Toyota Avalon Service & Repair Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System(for Gasoline Model) / Slip Indicator Light Remains ON

DESCRIPTION

The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication.

The slip indicator light blinks during VSC and/or TRAC operation.

If a malfunction is detected, the slip indicator light comes on to warn the driver.

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WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When replacing the skid control ECU (brake actuator assembly), perform system variant learning and acceleration sensor zero point calibration.

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PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication system DTCs are output.

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Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

INSPECT CAN COMMUNICATION SYSTEM

A

2.

CHECK IF BRAKE ACTUATOR ASSEMBLY CONNECTOR IS SECURELY CONNECTED

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

OK:

The connector is securely connected.

NG

CONNECT CONNECTOR TO BRAKE ACTUATOR ASSEMBLY CORRECTLY
OK

3.

CHECK BATTERY

(a) Check the battery voltage.

Standard Voltage:

Tester Connection

Condition

Specified Condition

Positive (+) terminal - Negative (-) terminal

Engine switch off

11 to 14 V
NG

CHECK OR REPLACE CHARGING SYSTEM COMPONENT OR BATTERY

OK

4.

READ VALUE USING TECHSTREAM (SLIP INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Data List.

Chassis > ABS/VSC/TRAC/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Slip Indicator Light

Slip indicator light

ON or OFF

ON: Indicator light on

OFF: Indicator light off

-
Chassis > ABS/VSC/TRAC/EPB > Data List

Tester Display

Slip Indicator Light

(d) Check the Techstream display condition of the slip indicator light.

Result

Proceed to

The value of Slip Indicator Light is ON

A

The value of Slip Indicator Light is OFF

B
A

REPLACE BRAKE ACTUATOR ASSEMBLY

B

INSPECT METER / GAUGE SYSTEM

    Slip Indicator Light does not Come ON

    System Diagram

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