Join Date: Jan 2016
Year/Make/Model: 2006 Vulcan Mean Streak
So now that I had a make shift ignition switch as well as an EFI indicator LED, I connected a fully charged battery to the positive and negative terminals via heavy jumper cables. Now the fun begins...
When I turn on the ignition switch, the EFI Led comes on, as well as tail lights, and neutral indicator light ... However the fuel pump is not priming/turning on... The EFI led turns off after a few seconds. My understanding from what I've read is that this behaviour is normal.
I can turn the engine over with the starter switch , however I've also confirmed there is no spark present at the plugs.
I grounded the yellow diagnostics connection found in the battery area under seat, with the expectation that the EFI indicator would start blinking out a diagnostic code... Unfortunately
No diagnostic code was output.
I started going thru the schematic and checking various components ... What I found / have determined is that the ECU is not turning on or is not able to turn on the DFI main relay ... See below section of main schematic/connections at this component. I have removed and tested/confirmed that this relay appears to be functional/working. (While removed I Used battery and a couple of small jumper leads to verify that the relay coil actuated the relay switch contacts.)
With the DFI main relay in circuit, I measure around 1V at the ECU side of the relay coil and +12V at the fuse side of the relay coil. For the relay to work I'd expect to see closer to zero volts on the ECU side of the relay... The ECU does not appear to be able to pull down to zero volts...
I'm starting to suspect /think that the ECU might be bad... However I have started to check the power and ground connections on the bike main harness.
I have read other posts that discuss electrical issues, and part of the diagnostic / resolution is to inspect a ground termination connector where all of the grounds are brought together.
Question to forum members: Does this same ground termination connector exist in the 2006 model year on the VN1600 MS?
Halifax Nova Scotia Canada
Current Ride: 2006 Vulcan 1600 Mean Streak
(Work in progress)
Past Rides: HMCS Assiniboine DDH 234