Further to the intake and switch-over valves (solenoid valves for ABD)
Solenoid valves not OK (function or leakage).
NOTE:
A correct test on the ABD solenoid valves is possible only if there is no fault on an ABS inlet valve or ABS outlet valve.
Therefore, read out the fault memory beforehand and remedy this fault first if necessary.
Test step "Intake valve" not OK:
- Test sequence not observed.
- Function of the intake valve not OK.
- Return pump operation not OK. Check pump operation. To do this, select return pump in the Drive links menu (pump must then run).
- ABD secondary circuit poorly bled. Bleeding: see MENU: BLEED (ABS/TC 5.3) .
- Intake or switch-over valve leaks.
Test step "Switch-over valve" not OK:
- Test sequence not observed.
- Function of the switch-over valve not OK.