ABS does not Operate [10/2018 - ]: Procedure

1. Check if the slip indicator light was illuminated or blinking when ABS did not operate.

   HINT: 

   • When the VSC system is normal and ABS is operating, the slip indicator light blinks.
   • When the VSC system is malfunctioning, the slip indicator light illuminates.

   Result

   Result	Proceed to
   The slip indicator light was blinking.	A
   The slip indicator light was illuminated.	B

Result: 

A 

END 

Result: 

B 

See step  2

1. Using the Techstream, check DTCs and Freeze Frame Data.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

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

Result: 

B 

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2018 - 08/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2021 - 07/2022]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [07/2022 - ] 

Result: 

A 

See step  3

1. Check that ABS operates using a drum tester or equivalent.
   WARNING:

   When using a drum tester, enter Inspection Mode or VSC off mode and perform inspection with the TRAC and VSC systems disabled to prevent the vehicle from moving suddenly due to TRAC or VSC operation.

   Refer to PRECAUTION [10/2018 - ]

   OK

   ABS operates.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ]