Brake Hold Operated Indicator Light Circuit [10/2018 - ]: Procedure

1. Check that the brake hold standby indicator light operates normally.

   Refer to Brake Hold Standby Indicator Light Circuit [10/2018 - ] 

2. If the brake hold operated indicator light does not illuminate although the brake hold standby indicator light is illuminated, check that the following brake hold operation (maintaining brake fluid pressure) conditions are met.
   1. System is in operation standby state (brake hold standby indicator light is illuminated).
   2. Shift position is not P or R.
   3. Driver is depressing brake pedal and vehicle is fully stopped.
   4. Driver is not depressing accelerator pedal.
   5. Vehicle is not on steep decline.

   HINT: 

   If a malfunction occurs in one of the following systems, the brake hold operated indicator light will blink. If this occurs, perform troubleshooting on the malfunctioning system.

   • Brake system
   • Electric parking brake system
   • Hybrid control system

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

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 [10/2018 - 07/2022] , or refer to DATA LIST / ACTIVE TEST [07/2022 - ]

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Hold Indicator

3. Check the combination meter assembly.

   OK

   The brake hold operated indicator light turns on or off in accordance with Techstream operation.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSPECT METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2022 - ] 

Result: 

OK 

See step  3

1. Select the Active Test on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   BH Operated Light	Brake hold operated indicator light	Indicator light ON/OFF	Observe combination meter assembly

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   BH Operated Light	Brake hold operated indicator light	ON or OFF	ON: Indicator light on OFF: Indicator light off	-

   Chassis > ABS/VSC/TRAC > Active Test 

   Active Test Display
   BH Operated Light

   Data List Display
   BH Operated Light

2. Check the operating condition of the brake hold operated indicator light when operating it using the Techstream.

   Result

   Result	Proceed to
   Brake hold operated indicator light in the Data List does not change using the Active Test.	A
   Brake hold operated indicator light in the Data List turns ON/OFF using the Active Test.	B

Result: 

A 

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

Result: 

B 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ]