Input Signals (Switching Element Diagnosis)

INPUT SIGNALS (ABS and ABS/TC)

The following input signals can be checked with this menu (with this function):
- Stop-light switch
- Valve relay
- Return pump
- Signal, terminal 61
- TC switch

STOP-LIGHT SWITCH:
Press the brake pedal.
Required display: Change from "not actuated" to "actuated".

VALVE RELAY:
The following appears in the display panel if the ignition is switched on or the engine is running and if the system is intact: "Valve relay picked up".

RETURN PUMP:
Display: Return pump not running
(Display if the pump were running:
Return pump running).

SIGNAL TERMINAL 61:
Required display:
with engine running - not present
with engine running - present.

TC SWITCH:

Required display without actuation:
TC switch not actuated.

Required display, depending on actuation:
(Switching Traction Control off or on):
TC switch ON actuated or
TC switch OFF actuated.