TRAC OFF Indicator Light does not Come ON [10/2015 - ]: Procedure

1. Check if CAN communication system DTCs are output.

   w/ Central Gateway ECU: Refer to DIAGNOSIS SYSTEM [10/2015 - ]

   w/o Central Gateway ECU: Refer to DIAGNOSIS SYSTEM [10/2015 - ]

   Result

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

Result: 

B 

INSPECT CAN COMMUNICATION SYSTEM 

w/ Central Gateway ECU: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]

w/o Central Gateway ECU: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]

Result: 

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 [10/2015 - ] ).
   ABS/VSC/TRAC
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   TRC(TRAC) OFF Indicator Light	Multi-information display (TRAC OFF message)	Display (message) ON/OFF	Observe combination meter assembly

4. Check that the multi-information display (TRAC OFF message) on the combination meter assembly turns on or off in accordance with Techstream operation.

   OK

   The multi-information display (TRAC OFF message) 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 [10/2015 - ] ).

Result: 

OK 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )

Result: 

NG 

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 [10/2015 - ] ).
3. Check the combination meter assembly.

   OK

   The multi-information display 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 (Refer to PROBLEM SYMPTOMS TABLE [10/2015 - ] ).

Result: 

OK 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )

Result: 

NG 

INSPECT METER / GAUGE SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] )