Engine Oil Pressure Sensor - Malaguti Dune X 125 Service Station Manual

Electrical system
Troubleshooting
Shorted to positive:

Disconnect the coil connector, turn the key to ON and activate the component through the
diagnostics instrument.

Verify the presence of voltage on the coil connector PIN 2: if present, restore the cabling,
otherwise replace the coil.
The circuit is open:

Carry out the check procedure of the coil and control unit connectors.

Verify continuity of the cabling between the coil and control unit: Coil PIN 2 - control unit PIN
1. In the absence of continuity restore the cabling.

Verify, with the key turned ON, the presence of voltage on the coil connector PIN 1. If no
voltage is read, verify the continuity of the cabling between coil and injection relay (No. 35
on the electrical circuit diagram): Coil PIN 1 - relay PIN 3.

If the above tests provided a positive result, the coil should be replaced.
Shorted to negative:

Disconnect the control unit connector and the coil connector.

Verify the coil connector PIN 2 ground insulation (or control unit connector PIN 1). Restore
the cabling if necessary.

Engine oil pressure sensor

Function
Notifies the instrument panel that the oil pressure
in the engine is sufficient.
Operation / Operating principle
The switch is normally closed (connects ECU sig-
nal to ground). At pressures above ... bar, the
switch opens.
Level in electrical circuit diagram:
Low fuel and oil pressure
Position:

on the vehicle: RH side, near the water
pump

connector: on the sensor
Electrical specifications: -
Pin out:
1. Voltage: 5 V
ELE SYS - 96
Dune 125 - Dune X 125 - Euro 4