Brake Override System: Procedure

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

   Result	Proceed to
   No DTCs are output.	A
   DTCs are output.	B

5. Turn the power switch off.

B → GO TO DTC CHART 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / Master Cylinder Ctrl Trq.
4. Read the value displayed on the Techstream.

   Tester Display	Measurement Item/Range	Normal Condition
   Master Cylinder Ctrl Trq	Master cylinder control torque/ Min.: -4096 Nm, Max.: 4095 Nm	Brake pedal depressed: Changes with the brake pedal pressure Brake pedal released: 0 Nm

   Result

   Result	Proceed to
   Displayed value changes according to the brake pedal pressure.	A
   Displayed speed value does not change according to the brake pedal pressure.	B

5. Turn the power switch off.

B → See step   8 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / Accel Pedal Pos #1, Accel Pedal Pos #2.
4. Read the value displayed on the Techstream.

   Tester Display	Measurement Item/Range	Normal Condition
   Accel Pedal Pos #1	Accelerator pedal position sensor No. 1/ Min.: 0%, Max.: 100%	Accelerator pedal released → depressed → released: Changes with accelerator pedal pressure
   Accel Pedal Pos #2	Accelerator pedal position sensor No. 2/ Min.: 0%, Max.: 100%

   Result

   Result	Proceed to
   Displayed speed values smoothly changes following accelerator pedal operation.	A
   Displayed speed values does not smoothly change following accelerator pedal operation.	B

5. Turn the power switch off.

B → See step   7 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / Vehicle Spd.
4. Read the value displayed on the Techstream.

   Tester Display	Measurement Item/Range	Normal Condition
   Vehicle Spd	Vehicle speed/ Min.: 0 mph (0 km/h), Max.: 158 mph (255 km/h)	Vehicle stopped: 0 mph (0 km/h) No large fluctuations when driving at a constant speed: Vehicle running at constant speed between 10 to 40 mph (16.1 to 64.4 km/h)

   Result

   Result	Proceed to
   Displayed speed value does not fluctuate.	A
   Displayed speed value fluctuates.	B

   WARNING:

   Perform this road test only in an appropriate safe location, in accordance with all local 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.

5. Turn the power switch off.

B → See step   6 

A: Go to next step 

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

   Tester Display	Measurement Item/Range	Normal Condition
   FR Wheel Speed	Front speed sensor RH / Min.: 0 mph (0 km/h), Max.: 202 mph (326 km/h)	Vehicle stopped: 0 mph (0 km/h) No large fluctuations when driving at a constant speed: Vehicle running at constant speed between 10 to 40 mph (16.1 to 64.4 km/h)
   FL Wheel Speed	Front speed sensor LH / Min.: 0 mph (0 km/h), Max.: 202 mph (326 km/h)
   RR Wheel Speed	Rear speed sensor RH / Min.: 0 mph (0 km/h), Max.: 202 mph (326 km/h)
   RL Wheel Speed	Rear speed sensor LH / Min.: 0 mph (0 km/h), Max.: 202 mph (326 km/h)

   Result

   Result	Proceed to
   Displayed speed value does not fluctuate.	A
   Displayed speed value fluctuates.	B

   WARNING:

   Perform this road test only in an appropriate safe location, in accordance with all local 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.

5. Turn the power switch off.

B → INSPECT FRONT OR REAR SPEED SENSOR 

A → END