Ducati Diavel Workshop Manual page 311

Introduction to the engine control system
O Absolute pressure sensor 1, horizontal cylinder. CCM engine control connection, 1 ground, black/purple - Bk/V, 2 power
(5V), brown/purple – Bn/V, 3 signal generated, green/white – G/W.
V Absolute pressure sensor 2 vertical cylinder. CCM engine control connection, 1 ground, black/purple - Bk/V, 2 power
(5V), brown/purple – Bn/V, 3 signal generated, green/white – G/W.
In the event of fault
In the event of a fault of absolute pressure sensor 1, the engine control unit uses the information from absolute pressure
sensor 2 instead.
In the event of a fault of absolute pressure sensor 2, the engine control unit uses the information from absolute pressure
sensor 1 instead.
In the event of a fault of both absolute pressure sensor 1 and absolute pressure sensor 2:
- The engine control unit implements an atmospheric pressure value of 1.013 bar.
- The fuel quantity injected is determined using the α-n strategy only.
Fault codes generated and possible correlated faults
Fault codes generated by the engine control unit and displayed by the DDS (MAPS 1 sensor diagnosis – MAPS 2 sensor diagnosis):
- Absolute pressure sensor 1 (cylinder 1 - horizontal) and/or Absolute pressure sensor 2 (cylinder 2 - vertical), open
circuit: check integrity of electric circuit and electrical connections.
- Absolute pressure sensor 1 (cylinder 1 - horizontal) and/or Absolute pressure sensor 2 (cylinder 2 - vertical), short circuit
to Vdc: check integrity of electric circuit and electrical connections.
- Absolute pressure sensor 1 (cylinder 1 - horizontal) and/or Absolute pressure sensor 2 (cylinder 2 - vertical), short circuit
to ground: check integrity of electric circuit and electrical connections.
Note
Check integrity of electric circuit – short-circuit to Vdc = with dashboard on, using a voltmeter, a voltage is measured
between the wire tested and ground.
Check integrity of electric circuit – short-circuit to ground = with the battery cables disconnected, using an ohmmeter,
continuity is detected between the wire tested and ground.
Check integrity of electric circuit – open circuit = with the battery cables disconnected, using an ohmmeter, no continuity
is detected between the two ends of the wire tested.