Contents: Connecting the Portable Diagnostic…↓ Checking the performance of the…↓ Checking the functionality of the…↓ Checking the functionality of the…↓
Connecting the Portable Diagnostic Tool II
Connect the Portable Diagnostic Tool II to the DLC3 connector.
Start the engine and let it idle.
In the Portable Diagnostic Tool II, select the mode "ACTIVE TEST" ("ACTIVE DIAGNOSTIC MODE").
Checking the performance of the electric motor of the actuator of the working cylinders of the brakes
When the electric motor relay is on, the sound of the electric motor operating the brake working cylinder actuator should be audible.
Turn off the motor relay.
Press and hold the brake pedal for about 15 seconds. Make sure that the brake pedal can no longer be pressed.
With the electric motor relay on, make sure that the brake pedal does not vibrate.
Note: It is prohibited to turn on the electric motor relay continuously for more than 5 s. If necessary, turn on the electric motor several times, the interval between turns should be at least 20 s.
Turn off the electric motor relay and release the brake pedal.
Checking the functionality of the front right wheel brake
With the brake pedal depressed, perform the following operations.
Note: Do not operate the solenoid valve in any manner other than that described below.
Simultaneously activate the SFRH and SFRR solenoid valves and check that the brake pedal can no longer be depressed.
Note: It is prohibited to turn on the electromagnetic valve continuously for more than 10 s. If necessary, turn on the electromagnetic valve several times, the interval between turns should be at least 20 s.
Turn off the SFRH and SFRR solenoid valves simultaneously and check that the brake pedal can be depressed.
Turn on the electric motor relay and check that the brake pedal returns to its original position.
Note: It is prohibited to turn on the electric motor relay continuously for more than 5 s. If necessary, turn on the electric motor several times, the interval between turns should be at least 20 s.
Turn off the electric motor relay and release the brake pedal.
Checking the functionality of the brakes of other wheels
Perform the above operations and check the solenoid valves of the other wheels.