Download ANTI-LOCK BRAKE SYSTEM (ABS)

5A4-20 ANTI-LOCK BRAKE SYSTEM (ABS)
Release Valve Test
Purpose: The purpose of this test is to detect brake
pipe and valve line harness wire wrong connections
and valve trouble.
This test will help you confirm the result of your repair
service including the removal/reinstallation of brake
pipe, valve line harness and valve.
Select a Dump Solenoid
from the Front Left Solenoid Valve Test
Function Menus.
Front Left Solenoid Valve Test
Actuator Test
Iso Solenoid
F0: ABS Relay Test
F1: Return Pump Relay Test
F3: Front Right Solenoid Valve Test
F4: Rear Left Solenoid Valve Test
F5: Rear Right Solenoid Valve Test
F6: ABS Check Light Test
F7: Exhaust Brake Cut Test
Test conditions: The ignition key is in the “ON” position
with the four wheels lifted up. The brake pedal is
stepped on, released and stepped on again with the
parking brake released.
Test procedure:
1. Connect Tech 2 with the vehicle, and select
Special Function from the menus.
2. Select a Release Valve Menu from the Special
Function Menus.
Actuator Test
F0: ABS Relay Test
F1: Return Pump Relay Test
F3: Front Right Solenoid Valve Test
F4: Rear Left Solenoid Valve Test
F5: Rear Right Solenoid Valve Test
F6: ABS Check Light Test
F7: Exhaust Brake Cut Test
3. Press the Release Valve “ON” Soft Key with the
brake pedal stepped on.
4. Make sure that the Release Valve “ON” aimed at
by Tech 2 and the wheel released position are the
same. If different, check brake pipe, valve line
harness wiring and H/UNIT. Repair is needed if
abnormality is found.
5. Conduct Step 2 through Step 5 above on all the
four wheels.
CAUTION: When conducting this test, please
observe the following cautions.
1. Do not start the engine without fail.
2. Lift up the vehicle at the level floor.
• Secure a clearance from the floor surface
enough to allow the lifted tire to rotate.
3. Maintain the lift up.
4. Wipe the floor surface to remove water and oil
so that the surface may become unslippery.
5. Do not load the vehicle.
• When lifting up the vehicle, be sure to
observe the lifting up points. Refer to
vehicle lifting points in 0A section.