ELECTRONICALLY CONTROLLED BRAKE SYSTEM Brake Warning Light does not Come ON

WIRING DIAGRAM

Refer to Brake Warning Light Remains ON (see pageClick here).

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   INSPECT CAN COMMUNICATION SYSTEM

   
   

   1. for LHD:

      Check if the CAN communication system DTC is output (see pageClick here).

      for RHD:

      Check if the CAN communication system DTC is output (see pageClick here).

      Table 1. Result

      Result		Proceed to
      DTC is not output		A
      DTC is output	for LHD	B
      	for RHD	C

   
   
   • AClick here
   • BClick here
   • CClick here
2. Click here

   INSPECT BRAKE WARNING LIGHT / RED (MALFUNCTION)

   
   

   1. Disconnect the skid control ECU connector.

   2. Turn the power switch ON (IG).

   3. Check if the brake warning light / red (malfunction) comes on.

      OK
      Brake warning light / red (malfunction) comes on.

      Tip:

      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 (see pageClick here).

      Table 2. Result

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

   
   
   • AClick here
   • BClick here
   • CClick here
3. Click here

   REPLACE SKID CONTROL ECUClick here

4. Click here

   INSPECT COMBINATION METER ASSEMBLY

   
   

   1. Perform the meter and gauge system active test (see pageClick here).

      Tip:

      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 (see pageClick here).

   
   
   • OKClick here
   • NGClick here
5. Click here

   USE SIMULATION METHOD TO CHECKClick here

6. Click here

   GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)Click here

7. Click here

   REPLACE NO. 1 METER ECU SUB-ASSEMBLYClick here

8. Click here

   GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)Click here

9. Click here

   REPLACE SKID CONTROL ECUClick here