Brake Warning Light does not Come ON [12/2017 - 09/2018]: Procedure

1. Check if CAN communication system DTCs are output.

   Refer to DIAGNOSIS SYSTEM [12/2017 - 09/2018]

   Result

   Proceed to
   DTC is not output
   DTC is output

Result: 

DTC is output 

CHECK CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 09/2018] 

Result: 

DTC is not output 

See step  2

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG).
4. Turn the Techstream on.
5. Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
6. According to the display on the Techstream, perform the Active Test.

   Chassis > ABS/VSC/TRAC > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Brake Warning Light	Brake system warning light (red indicator)	Warning light OFF/ON	Observe combination meter Vehicle condition: Vehicle stopped

7. When performing the Brake Warning Light Active Test, check Brake Warning Light in the Data List.

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Brake Warning Light	Brake system warning light (red indicator)	OFF or ON	OFF: Warning light off ON: Warning light on	-

   Chassis > ABS/VSC/TRAC > Active Test 

   Active Test Display
   Brake Warning Light

   Data List Display
   Brake Warning Light

   Result

   Result	Proceed to
   Brake system warning light (red indicator) in the Data List does not change using the Active Test	A
   Brake system warning light (red indicator) in the Data List turns ON/OFF using the Active Test	B

Result: 

A 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2017 - 09/2018] 

Result: 

B 

See step  3

1. Turn the engine switch off.
2. Perform Active Test of the combination meter assembly using the Techstream.

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Brake Warning

3. Check the combination meter assembly.

   OK

   The brake system warning light (red indicator) turns on or off in accordance with the Techstream.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2017 - 09/2018] 

Result: 

NG 

INSPECT METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 10/2023]