Brake Control Warning Light does not Come ON [02/2014 - ]: Procedure

1. Check if CAN communication system DTCs are output.

   Refer to DIAGNOSIS SYSTEM [02/2014 - 11/2016] Refer to DIAGNOSIS SYSTEM [11/2016 - ]

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

Result:  2

B 

INSPECT CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - 11/2016]  Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] 

Result:  1

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the Active Test on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [02/2014 - 11/2016] Refer to DATA LIST / ACTIVE TEST [11/2016 - ]

   Chassis > ABS/VSC/TRAC > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   ECB Warning Light	Brake warning light / yellow (minor malfunction)	Warning light ON/OFF	Observe combination meter assembly ECB: Electronically Controlled Brake System

   Chassis > ABS/VSC/TRAC > Active Test 

   Tester Display
   ECB Warning Light

4. Select the Data List on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [02/2014 - 11/2016] Refer to DATA LIST / ACTIVE TEST [11/2016 - ]

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   ECB Warning Light	Brake warning light / yellow (minor malfunction)	ON or OFF	ON: Warning light on OFF: Warning light off	ECB: Electronically Controlled Brake System

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   ECB Warning Light

5. Check the operating condition of the brake warning light / yellow (minor malfunction) when operating it using the Techstream.

   Result

   Result	Proceed to
   Brake warning light / yellow (minor malfunction) in the Data List does not change using the Active Test.	A
   Brake warning light / yellow (minor malfunction) in the Data List turns ON/OFF using the Active Test.	B

   HINT: 

   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 parts.

   Refer to PROBLEM SYMPTOMS TABLE [02/2014 - ]

Result:  1

A 

REPLACE SKID CONTROL ECU ASSEMBLY. Refer to  REMOVAL [02/2014 - ] 

Result:  2

B 

See step  3

1. Turn the power switch off.
2. Perform the Active Test of the combination meter assembly (meter CPU) using the Techstream.

   Refer to DATA LIST / ACTIVE TEST [02/2014 - 11/2016] Refer to DATA LIST / ACTIVE TEST [11/2016 - ]

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Indicat. Lamp ECB

3. Check the combination meter assembly.

   OK

   The brake warning light / yellow (minor malfunction) turns on or off in accordance with Techstream operation.

   HINT: 

   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 parts.

   Refer to PROBLEM SYMPTOMS TABLE [02/2014 - ]

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE SKID CONTROL ECU ASSEMBLY. Refer to  REMOVAL [02/2014 - ] 

Result:  2

NG 

INSPECT METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2014 - ]