Fuel pump relay, pump failed, hose inside the tank failed?

 

Does this require removing the fuel tank? From what I can see everthing is mounted underneath the tank.

 

The fuel pump harness that passes through the tank goes bad. If you have power going to that connector, it may be shorting out in the little harness that goes to the pump. Still available from Ducati

 

Hold down the "A" button on the dash while turning the key on. It will then show you any error codes on the dash. Which might help with diagnosis.


1.1 Throtlle Position Sensor (TPS) short-circuit to battery +
1.2 Throtlle Position Sensor (TPS) short-circuit to ground
2.1 Oil pressure sensor short-circuit to battery +
2.2 Oil pressure sensor short-circuit to ground
3.1 Oil temperature sensor short-circuit to battery +
3.2 Oil temperature sensor short-circuit to ground
4.1 Air temperature sensor short-circuit to battery +
4.2 Air temperature sensor short-circuit to ground
5.1 Battery HI
5.2 Battery LO
7.1 Fuel sensor short-circuit to battery +
7.2 Fuel sensor short-circuit to ground

10.1 Horizontal cylinder coil short-circuit to battery +
10.2 Horizontal cylinder coil short-circuit to ground
11.1 Vertical cylinder coil short-circuit to battery +
11.2 Vertical cylinder coil short-circuit to ground
12.1 Injector 1 short-circuit to battery +
12.2 Injector 1 short-circuit to ground
13.1 Injector 2 short-circuit to battery +
13.2 Injector 2 short-circuit to ground
16.0 Fuel pump relay open circuit
19.1 Starter solenoid short-circuit to battery +
19.2 Starter solenoid short-circuit to ground
21.1 Stepper motor short-circuit to battery +
21.2 Stepper motor short-circuit to ground
21.3 Stepper motor open circuit

30.0 Generic ECU error
34.0 Signal panel (sensor discovery)
36.0 Speed (sensor discovery)
37.0 Immobilizer (key / transponder not found)
37.1 Immobilizer (antenna discovery)
37.2 Immobilizer (instrument panel serial driver)
37.3 Immobilizer (serial cable disconnected)
37.5 Immobilizer (key not acknowledged)
37.6 Immobilizer (immo virgin - ECU progr.)
38.0 Can line

 

Hold down the "A" button on the dash while turning the key on. It will then show you any error codes on the dash. Which might help with diagnosis.


1.1 Throtlle Position Sensor (TPS) short-circuit to battery +
1.2 Throtlle Position Sensor (TPS) short-circuit to ground
2.1 Oil pressure sensor short-circuit to battery +
2.2 Oil pressure sensor short-circuit to ground
3.1 Oil temperature sensor short-circuit to battery +
3.2 Oil temperature sensor short-circuit to ground
4.1 Air temperature sensor short-circuit to battery +
4.2 Air temperature sensor short-circuit to ground
5.1 Battery HI
5.2 Battery LO
7.1 Fuel sensor short-circuit to battery +
7.2 Fuel sensor short-circuit to ground

10.1 Horizontal cylinder coil short-circuit to battery +
10.2 Horizontal cylinder coil short-circuit to ground
11.1 Vertical cylinder coil short-circuit to battery +
11.2 Vertical cylinder coil short-circuit to ground
12.1 Injector 1 short-circuit to battery +
12.2 Injector 1 short-circuit to ground
13.1 Injector 2 short-circuit to battery +
13.2 Injector 2 short-circuit to ground
16.0 Fuel pump relay open circuit
19.1 Starter solenoid short-circuit to battery +
19.2 Starter solenoid short-circuit to ground
21.1 Stepper motor short-circuit to battery +
21.2 Stepper motor short-circuit to ground
21.3 Stepper motor open circuit

30.0 Generic ECU error
34.0 Signal panel (sensor discovery)
36.0 Speed (sensor discovery)
37.0 Immobilizer (key / transponder not found)
37.1 Immobilizer (antenna discovery)
37.2 Immobilizer (instrument panel serial driver)
37.3 Immobilizer (serial cable disconnected)
37.5 Immobilizer (key not acknowledged)
37.6 Immobilizer (immo virgin - ECU progr.)
38.0 Can line

37.3 Immobilizer (serial cable disconnected) is what its reading. Where is this located?

 

That's great info Chris. To what years does it apply?

 

ALL of the Gen1 Multistradas, 620 - 1000DS - 1100DS. All of the aircooled bikes. Not sure about the later bikes

 

It could one of three things.

1. The first is that a previous owner has disabled the immobilzer (my bike is like this too and always has this error). Now go to option 3.

or

2. There is a ring under the cover that goes around the Ignition key/lock. An antenna for the Immobilzer. Sometimes they get displaced and cant read the code in the key. Take the Ignition Lock / Key cover off and make sure everything is as it should be. Worst case, you need to get some cables from LONLEC that will let you have access to the bikes ECU. You can download the map. Edit it to turn the immobilizer off and thats that.

or

3. There is an issue that wont register as an error on the ECU. For example the fuel filter is clogged, Pump is dead or a split fuel hose in the tank. Everything thats already been mentioned above.



Have you checked to see if still have a spark? Grab an old spark plug (that you know works), pull the Plug wire off the VERTICAL cylinder, left hand side, and when the bike is cranking hold the plug body against the engine. You should see a nice blue spark. If so, you need check you have fuel getting through. Which means pulling the tank off. A total PITA! but doable in an Hour with regular pauses for Beer. If have never pulled the tank off i can send you a guide of how to do it. Yes. its that much of a PITA.

 

Having trouble starting my 2005 multi 1000. ....Battery is charged fully.....

Cheers all, just for fun, is the battery new or a few years old? They can be tricky little 's. Do a ccv test while cranking.....a healthy battery will have well over 10v cold cranking. Make sure 12hrs rest off charger for a true reading .

Good luck, hope it's not a workmanship issue from the recent rebuild

 

It's been running great untill this problem. I checked to he battery and looks fine. 1 yr old as well but will charge again and recheck. It does crank slow which it always has.

 

Thanks for the info. Can you send the info/video on how to remove the tank. Thanks