Solenoid valve test "with roller test bench"
Solenoid valve test "without roller test bench"
The solenoid valve test checks that the electrics and hydraulics of the ABS solenoid valves are functioning correctly and that the valves are assigned to the correct wheel.
Only perform the test on a roller test bench or with the wheel raised!
When carrying out the test on the roller test bench, build up the brake power to 1 kN using the brake pedal to prevent the roller test bench from switching off automatically.
After selecting a function from the menu, the test procedure appears on the display of the HHT. The procedure is the same for all ABS solenoid valves.
Solenoid valve test selection menu:
LF solenoid valve
RF solenoid valve
RR solenoid valve
LR solenoid valve
Note
A second person is required to support the pedal.
Abbreviations for solenoid valve test:
RFP - Return flow pump
EVVL Left front intake valve
AVVL Left front exhaust valve
EVVR Right front intake valve
AVVR Right front exhaust valve
EVHR Right rear intake valve
AVHR Right rear exhaust valve
EVHL Left rear intake valve
AVHL Left rear exhaust valve