ELECTRONICALLY CONTROLLED BRAKE SYSTEM Slip Indicator Light Remains ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

If the skid control ECU stores a DTC, the slip indicator light comes on in the combination meter.

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

When the system fails, the slip indicator light comes on to warn the driver Click here.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check if CAN communication system DTCs are output Click here.

      Result
      Result Proceed to DTC is not output A DTC is output B

   
   

   B

   INSPECT CAN COMMUNICATION SYSTEM Click here

   A

2. CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

   
   

   1. Check if the skid control ECU connector is securely connected.

      OK
      The connector is securely connected.

   
   

   NG

   CONNECT CONNECTOR TO ECU CORRECTLY

   OK

3. CHECK AUXILIARY BATTERY

   
   

   1. Check the auxiliary battery voltage.

      Standard Voltage
      11 to 14 V

   
   

   NG

   CHARGE OR REPLACE AUXILIARY BATTERY

   OK

4. INSPECT COMBINATION METER

   
   

   1. Perform the Active Test of the combination meter (meter CPU) using the intelligent tester Click here.

   2. Check the combination meter.

      OK
      The slip indicator light turns on or off in accordance with intelligent tester operation.

      Result
      Result Proceed to OK (for LHD) A OK (for RHD) B NG C

      Tech Tips

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

   
   

   B

   REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Click here

   C

   REPLACE COMBINATION METER Click here

   A

   REPLACE BRAKE BOOSTER WITH MASTER CYLINDER Click here