• NOTICE: The owner of this website and GTMotoCycles.com completely lost his home on the morning of January 8th in the L.A. Wildfire Storm. Most of his neighborhood is gone, and a few friends were killed along with their pets. The GTM SHOP and STORE are functioning normally, but we DEMAND EXTREME PATIENCE on orders as we are a SMALL business and Todd usually has his hands on nearly every order before it goes out. You can find more info on a post named L.A. Wildfires in the USA section. Our heart and best go out to everyone effected in this horrific disaster.
  • Ciao Guest - You’ve landed at the ultimate Guzzi site. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER - Use the CONTACT above if you need help. New to the forum? For all new members, we require ONE post in the Introductions section at the bottom, in order to post in most of the other sections. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have, have likely been already answered. DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back in and reply within 24 hours, or your post will be deleted. Note there's decades of heavily experienced Guzzi professionals on this site, all whom happily give endless amounts of their VALUABLE time for free; BE COURTEOUS AND RESPECTFUL!
  • Be sure to see the GTM STORE link also above for our 700+ product inventory, including OEM parts and many of our 100% Made-in-SoCal-USA GTM products and engine kits. In SoCal? Click the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work, and don't miss our GT MotoCycles® (not) art on the BUILDS tab above. WE'RE HERE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED - DO NOT EMAIL AND ASK QUESTIONS OR ASK TO CALL YOU.
  • There is ZERO tolerance on personal attacks and ANY HYPERLINKS to PRODUCT(S) or other competing website(s), including personal pages, social media or other Forums. This ALSO INCLUDES ECU DIAGnostic software, questions and mapping. We work very hard to offer commercially supported products and to keep info relevant here. First offense is a note, second is a warning, third time will get you banned from the site. We don't have the time to chase repeat (and ignorant) offenders. This is NOT a social media platform; It's an ad-free, privately funded website, in small help with user donations. Be sure to see the GTM STORE link above; ALL product purchases help support the site, or you can upgrade your Forum profile or DONATE via the link above.

Service Light

C

Cheshire Jack

Just got it firing!
Joined
Feb 9, 2025
Messages
4
Reaction score
1
Location
Birmingham, England,United Kingdom
I am a new member so treat me gently 😁. I have an 09 Moto Guzzi 1200 Sport and the SERVICE warning light is on across my screen. The engine has just had a rebuild, to replace the clutch seal, so does not need a service.

I have read in here about the service codes and the code 36421 gets me in but I can’t get the word SERVICE to drop from my screen.

I select MODE, toggle to MENU, then to DIAGNOSIS, enter the code 36421, scroll to RESET SERVICE, then YES to reset the service. I get the RESET COMPLETE message but the word SERVICE will not disappear from my screen.

What am I missing? Or is there a problem with my bike.

Comments would be appreciated.
 
The big service across dash is no good. It is not like the service wrench. It is covered here somewhere, let me search.

Here's one Now it's your turn
Tony D.

Thread '‘06 Breva 1100 Ghost Triangle of Death'

I finally got tired of being slow-cooked riding on days over 80F so I eliminated the CAT with the Mistrel pipe making it much more bearable. Cutting the weight nearly 5 pounds and the added bark when hammering the throttle were nice benefits as well. All appeared seamless except for a couple of annoyances I’m hoping to get some help with. The first is the idle instability. Cold start idle sometimes doesn’t hold without a little assistance and once warmed, can wonder up to 1500 rpm down to dropping out and stalling. Doesn’t happen often but annoying when it does. Second is after restarting...
 
I have just been dealing with this. You need to go back in the menu and see what codes it shows. Mine was code 7 as I recall which was the oil sensor which I had replaced. Turned out that is a common issue with this model.
 
Cheshire Jack said:
I am a new member so treat me gently 😁. I have an 09 Moto Guzzi 1200 Sport and the SERVICE warning light is on across my screen. My error message is 16, I have been told this could be an air temp sensor.
Click to expand...
Always search...
GTM®

Thread 'Error codes for 5AM/7SM ECUs'

ENGINE CONTROL UNIT ERRORS (Computer)
The dashboard receives from the central computer only actual faults
Vcc = + 5Volts.
Gnd = Ground or Frame
C.C. = Component connector

ECU Error Code 10 - Error throttle valve C.C. Vcc
ECU Error Code 11 - throttle valve C.C. Gnd
ECU Error Code 12 - Some analog channel functions do checks on the input signal to make sure it is changing as expected (i.e. RPM and MAP are increasing but TPS did not change or engine idling but TPS at 100%)
ECU Error Code 13 - Temp Sensor disconnect?
ECU Error Code 14 - Engine temperature C.C. Vcc
ECU Error Code 15 - Engine...
  • Like
 
You must log in or register to reply here.
Back
Top