General Category > Engine related issues
Motronic 2.4, 2004 R1100S comms trouble
HECOJohn:
Aloha, back in business.
VBAT: 2.23 while volt meter reports 12.09 at battery terminals. Voltage reports are All lights shining brightly.
VIGN: 0.00
Firmware: 1303.3
Autoscan: not listed as option.
I'm now thinking it's not a comms issue but power to or through the ECU or ECU it self. I'll keep looking but, any thoughts? Anyone think of a reason there would be low voltage through the controller to the GS911, other than a bad controller?
John
HECOJohn:
Aloha,
Correction, Autoscan show no communication with controller.
Haakon:
Happy New Year! Maybe not so "happy" with a no working R1100S :-(
My bet it is some sort of bad connections or wiring.
What year (model) is the bike?
You never told what happen when you turn on the ignition- or how the bike is not working?
Does the instrument panel light up, do the instruments work and so on?
I am not familiar with the R1100S model but my first guess is NOT a faulty ECU.
Could you borrow a ECU from another R1100S? Just to make sure.
(I did find a R1100S ECU on .... priced at 220$)
Good luck, Haakon
HECOJohn:
Sorry all, didn't fully describe the problem.
It's a 2004 R1100s. Build date is 1/2003 and first sold 4/2003.
I purchased the bike for about the cost of tires and brakes not running, so the the price was right. The story is anecdotal but verified by the currently registered, the safety inspected, and confirmed by the owner of the shop it was in. "It just stopped running". It was in a 3rd party non BMW shop where the mechanic incorrectly guessed at and replaced HES. Next guess was the ECU, but more $ than the previous owner wanted to spend so he sold the bike.
When the key is turned on, the ABS cycles, all lights on, oil pressure and ABS alarm lamps on, normal as far as I can tell. The fuel pump does nothing. Pressing the starter with the plugs and injectors out produces good engine rotation and no spark or injector spray. GS911 reports as stated in previous post. A fairly intense cleaning and inspection reveals a very clean bike with no obvious conductor damage, blown fuses, loose ground lugs. I did not pull all connectors apart but the turn signal, ECU, fuel pump plugs look very clean.
I am arranging for a test ECU to validate. More to follow.
Thanks all,
John
HECOJohn:
Aloha again,
Okay, new ECU installed, no joy. Hmmm. Still getting low battery voltage. It's an electrical issue and not GS911 comms.
Time to thrash through the terminations and conductors.
Again, thanks all who helped! I will let you all know what I find and hopefully save someone else the troubles.
John
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version