Slip Indicator Light Circuit

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: Slip Indicator Light Circuit
- Slip Indicator Light Circuit

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication. The slip indicator light blinks during VSC operation to inform the driver of system operation and when a slip occurs. When VSC fails, the slip indicator comes on to warn the driver.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Initialization and Calibration).

PROCEDURE

1. CHECK DTC FOR ALL SYSTEM

(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

(b) Check for the DTC Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting

C -- GO TO LIN COMMUNICATION SYSTEM LIN Communication System
A -- Continue to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

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

(c) Select the Active Test mode on the Techstream.

Combination Meter:





(d) Check that the slip indicator light turns on or off when using the Techstream.

OK:

The slip indicator light turns on or off in accordance with the Techstream.

HINT
If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part Problem Symptoms Table.

NG -- GO TO METER AND GAUGE SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

3. PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

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

(c) Select the Active Test mode on the Techstream.

ABS/VSC/TRAC





(d) Check that the slip indicator light turns on or off when using the Techstream.

OK:

The slip indicator light turns on or off in accordance with the Techstream.

HINT
If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part Problem Symptoms Table.

NG -- REPLACE SKID CONTROL ECU Removal
OK -- Continue to next step.

4. READ VALUE USING TECHSTREAM (TRC(TRAC)/VSC OFF SW)

(a) Connect the Techstream to the DLC3.

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

(c) Select the Data List mode on the Techstream.

ABS/VSC/TRAC





(d) Check that the VSC OFF switch turns on or off on the Techstream.

OK:

VSC OFF switch is operated, and the display changes as shown above.

NG -- REPLACE SKID CONTROL ECU Removal

OK -- CHECK INTERMITTENT PROBLEMS Check for Intermittent Problems