DTC P0724: Brake Switch "B" Circuit High [12/2015 - 08/2016]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch.
5. Read the value displayed on the Techstream when the brake pedal is depressed and released.

   OK

   Techstream Display	Measurement Item: Range	Normal Condition
   Stop Light Switch	Stop light switch assembly status: ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released

Result: 

OK 

CHECK FOR INTERMITTENT PROBLEMS 

(Refer to CHECK FOR INTERMITTENT PROBLEMS [12/2015 - 08/2016] )

Result: 

NG 

See step  2

1. Check the stop light switch assembly installation (Refer to INSTALLATION [12/2015 - ] ).

   OK

   Stop light switch assembly is installed correctly.

Result: 

NG 

SECURELY REINSTALL STOP LIGHT SWITCH ASSEMBLY 

(Refer to INSTALLATION [12/2015 - ] )

Result: 

OK 

See step  3

1. Inspect the stop light switch assembly (for Bulb Type Stop Light) (Refer to INSPECTION [12/2015 - ] ).
2. Inspect the stop light switch assembly (for LED Type Stop Light) (Refer to ON-VEHICLE INSPECTION [12/2015 - ] ).

Result: 

NG 

REPLACE STOP LIGHT SWITCH ASSEMBLY 

(Refer to REMOVAL [12/2015 - ] )

Result: 

OK 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the ECM connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   A39-36 (STP) - Body ground	Brake pedal depressed	7.5 to 14 V
   A39-36 (STP) - Body ground	Brake pedal released	0 to 1.5 V

   TEXT IN ILLUSTRATION
   
   

   *a	Brake pedal depressed
   *b	Brake pedal released
   *c	Front view of wire harness connector (to ECM)

Result: 

OK 

REPLACE ECM 

(Refer to REMOVAL [12/2015 - 08/2016] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR