| DTC Code | DTC Name |
|---|---|
| Brake Override System |
DESCRIPTION
When the vehicle is being driven with the accelerator pedal depressed, depressing the brake pedal without releasing the accelerator pedal will activate the brake override system to restrict driving torque. The conditions for activating the brake override system as well as the items that are controlled are explained below.
The accelerator pedal and brake pedal are depressed at the same time.
Brake override control may not be performed depending on the relationship between accelerator opening and vehicle speed.
Controls driving force
When the control is operating, requested accelerator torque is controlled in accordance with the brake pedal stroke.
When the driving force is reduced to a specified level because the accelerator pedal and brake pedal are depressed at the same time, an indicator is displayed on the meter. (Operation of the system can be confirmed when the indicator is displayed on the meter.)
The accelerator pedal or brake pedal is released.
CAUTION / NOTICE / HINT
Drive at 10 km/h (6 mph), depress the accelerator pedal by 1/2 to 3/4 and keep it in that position. Under these conditions, if driving torque is controlled when the brake pedal is depressed by the left foot of the driver, it can be confirmed that the brake override system has operated.
Perform this road test only in an appropriate safe location, in accordance with all local laws.
Pay careful attention to the surroundings when performing the road test.
The brake override system restricts driving torque if the brake pedal is depressed when driving with the accelerator pedal depressed. If a customer reports experiencing a loss of power (driving torque) after the accelerator and brake pedals have both been intentionally depressed, explain that this is not a malfunction, and depressing both the accelerator and brake pedals at the same time should be avoided.
PROCEDURE
CHECK DTC OUTPUT (HEALTH CHECK)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: System Select / Health Check.
Check for DTCs.
| Result | |||
|---|---|---|---|
|
Turn the power switch off.
GO TO DTC CHART
READ VALUE USING GTS (MASTER CYLINDER CTRL TRQ)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Data List / Master Cylinder Ctrl Trq.
| Tester Display |
|---|
| Master Cylinder Ctrl Trq |
Read the value of "Master Cylinder Ctrl Trq" displayed on the GTS.
| Standard |
|---|
| 0.30 to 0.70 V (With brake pedal released) |
Depress the brake pedal and read the value of "Master Cylinder Ctrl Trq" displayed on the GTS.
| Standard |
|---|
| The value increases. |
Turn the power switch off.
| Result | |||
|---|---|---|---|
|
CHECK BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY for LHD:Click here
CHECK BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY for RHD:Click here
READ VALUE USING GTS (ACCEL PEDAL POS #1, ACCEL PEDAL POS #2)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Data List / Accel Pedal Pos #1, Accel Pedal Pos #2.
| Tester Display |
|---|
| Accel Pedal Pos #1 |
| Accel Pedal Pos #2 |
Read the value of "Accel Pedal Pos #1" and "Accel Pedal Pos #2" displayed on the GTS.
| Standard | ||||
|---|---|---|---|---|
|
Refer to the SFI system Data List for the "Accel Pedal Pos #1" and "Accel Pedal Pos #2" standard ranges when the accelerator pedal is operated.
for SFI System (w/ EGR System):Click here
for SFI System (w/o EGR System):Click here
Turn the power switch off.
| Result | |||
|---|---|---|---|
|
REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLYClick here
READ VALUE USING GTS (VEHICLE SPD)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Data List / Vehicle Spd.
| Tester Display |
|---|
| Vehicle Spd |
Read the value of "Vehicle Spd" displayed on the GTS.
| Standard | ||||||
|---|---|---|---|---|---|---|
|
Perform this road test only in an appropriate safe location, in accordance with all local laws.
Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.
Turn the power switch off.
| Result | |||
|---|---|---|---|
|
GO TO METER / GAUGE SYSTEMClick here
READ VALUE USING GTS (FR, FL, RR, RL WHEEL SPEED)
Connect the GTS to the DLC3.
Turn the power switch on (READY).
Enter the following menus: Chassis / ABS/VSC/TRC / Data List / All Data / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed.
| Tester Display |
|---|
| FR Wheel Speed |
| FL Wheel Speed |
| RR Wheel Speed |
| RL Wheel Speed |
Read the value of "FR Whel Speed", "FL Whel Speed", "RR Whel Speed" and "LR Whel Speed" displayed on the GTS.
| Standard | ||||||
|---|---|---|---|---|---|---|
|
Perform this road test only in an appropriate safe location, in accordance with all local laws.
Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test.
Turn the power switch off.
| Result | |||
|---|---|---|---|
|
END
INSPECT SPEED SENSOR (FRONT OR REAR SPEED SENSOR)