PROCEDURE
INSPECT BRAKE ACTUATOR OPERATION
Connect the GTS to the DLC3 with the power switch off, the shift lever in P and the parking brake applied.
Turn the power switch on (IG) and turn the GTS on.
Check the solenoid valve (SLA##, SLR##, SMC1, SMC2).
Enter the following menus: Chassis / ABS/VSC/TRC / Active Test / Actuator Air Bleeding Pattern.
| Active Test Display |
|---|
| Actuator Air Bleeding Pattern |
| Data List Display |
|---|
| Master Cylinder Sensor |
| Master Cylinder Sensor2 |
| FR W/C Sensor |
| FL W/C Sensor |
| RR W/C Sensor |
| RL W/C Sensor |
Select "Master Cylinder Sensor", "Master Cylinder Sensor 2", "FR W/C Sensor", "FL W/C Sensor", "RR W/C Sensor" and "RL W/C Sensor".
Turn "Actuator Air Bleeding Pattern" on and check the output voltage.
Note
Do not depress the brake pedal.
Tech Tips
It takes approximately 70 seconds to complete the check.
The sensors will be checked one by one within the 70 second time period.
If the voltage is not within the specified range, troubleshoot the electronically controlled brake system.
Check the FR W/C Sensor output voltage.
| Standard Voltage | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Check the FL W/C Sensor output voltage.
| Standard Voltage | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Check the RR W/C Sensor output voltage.
| Standard Voltage | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Check the RL W/C Sensor output voltage.
| Standard Voltage | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Check the changeover solenoid valves (SMC1, SMC2).
Enter the following menus: Chassis / ABS/VSC/TRC / Active test / ECB (Electronically Controlled Brake System) Control Invalid.
| Active Test Display |
|---|
| ECB Control Invalid |
| Data List Display |
|---|
| Master Cylinder Sensor |
| Master Cylinder Sensor2 |
| FR W/C Sensor |
| FL W/C Sensor |
Select "Master Cylinder Sensor", "Master Cylinder Sensor 2", "FR W/C Sensor" and "FL W/C Sensor".
Turn "ECB (Electronically Controlled Brake System) Control Invalid" on, and check the output voltage by depressing the brake pedal.
| Standard Voltage |
|---|
| Difference in output voltage between "Master Cylinder Sensor" and "FR W/C Sensor" is less than 0.4 V. |
| Difference in output voltage between "Master Cylinder Sensor 2" and "FL W/C Sensor" is less than 0.4 V. |
After inspection, turn "ECB (Electronically Controlled Brake System) Control Invalid" off.
INSPECT PRESSURE SENSOR OPERATION
Check the auxiliary battery voltage.
| Standard Voltage |
|---|
| 11 to 14 V (with the engine stopped) |
Set SST and a pedal effort gauge.
| *a | Pedal Effort Gauge |
| *b | SST (LSPV Gauge) |
| *c | SST (No. 1 Nipple) |
Set SST and a pedal effort gauge.
Bleed air from SST (LSPV gauge).
Connect the GTS to the DLC3 with the power switch off, the shift lever in P and the parking brake applied.
Turn the power switch on (IG) and turn the GTS on.
Clear the DTCs.
Check the wheel cylinder pressure sensor and master cylinder pressure sensor.
Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Master Cylinder Sensor, Master Cylinder Sensor 2, FR W/C Sensor, FL W/C Sensor, RR W/C Sensor, and RL W/C Sensor.
| Tester Display |
|---|
| Master Cylinder Sensor |
| Master Cylinder Sensor2 |
| FR W/C Sensor |
| FL W/C Sensor |
| RR W/C Sensor |
| RL W/C Sensor |
Check the output voltage and hydraulic pressure by depressing the brake pedal.
Tech Tips
Read Calibration ID using the GTS.
| Standard Value (for Type A Front Brake / Calibration ID: F1526-53182 and F1526-53192) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
| Standard Value (for Type B Front Brake with Solid Type Rear Disc / Calibration ID: F1526-53182 and F1526-53192) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
| Standard Value (for Type B Front Brake with Ventilated Type Rear Disc / Calibration ID: F1526-53182 and F1526-53192) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
| Standard Value (for Type A Front Brake / Calibration ID: Except F1526-53182 and F1526-53192) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
| Standard Value (for Type B Front Brake with Solid Type Rear Disc / Calibration ID: Except F1526-53182 and F1526-53192) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
| Standard Value (for Type B Front Brake with Ventilated Type Rear Disc / Calibration ID: Except F1526-53182 and F1526-53192) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
|||||||||||||||
|
If the result is not as specified, troubleshoot the electronically controlled brake system.
Check the accumulator sensor.
Move the shift lever to P. Apply the parking brake and connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Accumulator Sensor.
| Tester Display |
|---|
| Accumulator Sensor |
Depress the brake pedal 4 or 5 times and operate the booster pump motor.
After confirming that the booster pump motor stops, check the output voltage.
| Standard Voltage |
|---|
| 2.6 to 3.8 V |
If the result is not as specified, troubleshoot the electronically controlled brake system.
Remove SST and the pedal effort gauge.
Remove SST and the pedal effort gauge, and bleed brake line.