Brake Override System [10/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Enter the following menus: System Select / Health Check.
4. Check the DTCs.

   Result

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

Result: 

B 

GO TO DTC CHART 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Start the engine and turn the Techstream on.
3. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Master Cylinder Pressure.
4. Read the value displayed on the Techstream.

   Standard

   0.00 to 1.76 MPa (Brake pedal released).

5. Check that the brake fluid pressure value of the "Master Cylinder Pressure" observed on the Techstream changes when the brake pedal is depressed.

   OK

   When the pedal is depressed, the pressure displayed on the Techstream increases.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CHECK BRAKE ACTUATOR ASSEMBLY. Refer to  ON-VEHICLE INSPECTION [10/2015 - ] 

Result: 

OK 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine / Data List / Stop Light SW.
4. Check the Data List indication when the brake pedal is depressed and released.

   OK

   Techstream Display	Condition	Specified Condition
   Stop Light SW	Brake pedal released	OFF
   	Brake pedal depressed	ON

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSPECT STOP LIGHT SWITCH ASSEMBLY. Refer to  ON-VEHICLE INSPECTION [10/2015 - ] 

Result: 

OK 

See step  4

1. Inspect and adjust the brake pedal support assembly.

   Refer to ADJUSTMENT [10/2015 - ]

   HINT: 

   If the stop light switch turns ON too late, the start of brake override system control may be delayed; if it turns ON too soon, brake override system control may begin too early, so conduct inspection of the brake pedal support assembly and stop light switch assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE BRAKE PEDAL SUPPORT ASSEMBLY. Refer to  REMOVAL [09/2014 - ] 

Result: 

OK 

See step  5

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Enter the following menus: Powertrain / Engine / Data List / Accelerator Position Sensor No. 1 Voltage % and Accelerator Position Sensor No. 2 Voltage %.
4. Read the value displayed on the Techstream.

   OK

   Techstream Display	Condition	Specified Condition
   Accelerator Position Sensor No. 1 Voltage %	Accelerator Pedal Released → Depressed → Released	Values smoothly change following accelerator pedal operation
   Accelerator Position Sensor No. 2 Voltage %

   HINT: 

   For numerical values of Accelerator Position Sensor No. 1 Voltage % and Accelerator Position Sensor No. 2 Voltage %, refer to the Data List.

   Refer to DATA LIST / ACTIVE TEST [10/2015 - 09/2016] , or refer to DATA LIST / ACTIVE TEST [09/2016 - 09/2017] , or refer to DATA LIST / ACTIVE TEST [09/2017 - 09/2018] , or refer to DATA LIST / ACTIVE TEST [09/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY. Refer to  REMOVAL [10/2015 - ] 

Result: 

OK 

See step  6

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Start the engine.
4. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed.
5. Read the value displayed on the Techstream.

   Standard

   Techstream Display	Condition	Specified Condition
   Vehicle Speed	Vehicle stopped, engine running	0 km/h (0 mph)
   	Vehicle being driven at constant speed between 16.1 to 64.4 km/h (10 to 40 mph)	No large fluctuations when driving at a constant speed

   WARNING:

   When performing a drive test, obey all speed limits and traffic laws.

   HINT: 

   Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT). Refer to  Vehicle Speed Signal Circuit [10/2015 - ] 

Result: 

OK 

See step  7

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Start the engine.
4. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed.
5. Read the value displayed on the Techstream.

   Standard

   Techstream Display	Condition	Specified Condition
   FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed	Vehicle stopped, engine running	0 km/h (0 mph)
   	Vehicle being driven at constant speed between 16.1 to 64.4 km/h (10 to 40 mph)	No large fluctuations when driving at a constant speed

   WARNING:

   When performing a drive test, obey all speed limits and traffic laws.

   HINT: 

   Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

INSPECT FRONT OR REAR SPEED SENSOR