Slip Indicator Light Remains ON

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: Slip Indicator Light Remains ON

Slip Indicator Light Remains ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN and multiplex communications.
The SLIP indicator blinks during VSC and/or TRAC operation.
When the system fails, the SLIP indicator comes on to warn the driver.
The SLIP indicator comes on when traction control and VSC are terminated by pressing the VSC OFF switch.

WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE:
When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Programming and Relearning.

PROCEDURE

1. INSPECT CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output Diagnosis System.
Result:






B -- REPAIR CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. INSPECT MULTIPLEX COMMUNICATION SYSTEM
(a) Check if the multiplex communication system DTC is output Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- REPAIR MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
3. INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED
(a) Check the skid control ECU connector's connection.
OK:
The connector is securely connected.
NG -- CONNECT CONNECTOR TO ECU CORRECTLY
OK -- Continue to next step.
4. INSPECT BATTERY
(a) Check the battery voltage.
Voltage:
11 to 14 V
NG -- INSPECT CHARGING SYSTEM
OK -- Continue to next step.
5. INSPECT VSC OFF SWITCH





(a) Remove the VSC OFF switch.
(b) Disconnect the VSC OFF switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPLACE VSC OFF SWITCH
OK -- Continue to next step.
6. INSPECT VSC OFF SWITCH (GROUND TERMINAL)





(a) Disconnect the VSC OFF switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)
OK -- Continue to next step.
7. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU TO VSC OFF SWITCH)





(a) Disconnect the skid control ECU connector and the VSC OFF switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
8. INSPECT COMBINATION METER ASSEMBLY
(a) Check the combination meter assembly Problem Symptoms Table.
HINT:
If the 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 COMBINATION METER ASSEMBLY
OK -- REPLACE SKID CONTROL ECU