Wed Jun 30, 2021 9:19 am

Enthusiast
2007 MP3 250, 2009 MP3 400, 2016 MP3 500 Sport
Joined: 26 Oct 2015
Posts: 64
Location: HoCo, Maryland
 
Enthusiast
2007 MP3 250, 2009 MP3 400, 2016 MP3 500 Sport
Joined: 26 Oct 2015
Posts: 64
Location: HoCo, Maryland
Wed Jun 30, 2021 9:19 am linkquote
Not my bike, but my husband's--he no longer has any temperature at all in his displays. Only info I've found after googling shows how to convert display from C to F or vice versa, but nothing if your temp display has just completely disappeared. Would that be an indicator that the temperature sensor is disconnected? Needs replacing? The shop we normally visit is backed up, so we can't get it in this week, and if I can figure out the problem before then I'd prefer to do the work myself--I'm fine with working on the engine, just not good with diagnostics when I can't find info online.
Wed Jun 30, 2021 10:01 am

Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: 02 Apr 2013
Posts: 900
Location: tampa
 
Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: 02 Apr 2013
Posts: 900
Location: tampa
Wed Jun 30, 2021 10:01 am linkquote
a picture of display would be a great place to start.
Wed Jun 30, 2021 10:26 am

Hooked
2015 MP3 500 ie Business
Joined: 29 Oct 2019
Posts: 497
Location: Belgium
 
Hooked
2015 MP3 500 ie Business
Joined: 29 Oct 2019
Posts: 497
Location: Belgium
Wed Jun 30, 2021 10:26 am linkquote
Start simple first. Remove the top plastic half of the steering handle, and check the connection to the temp sensor. The connector is located by the left brake handle.

Disconnect the sensor and clean the connections with some electrical contact cleaner. Reconnect and see if anything changes. IF you have the "green death" on the connector, it may have corroded far enough to prevent a good solid connection.

The temp sensor is located in the bottom plastic half of the steering handle. FWIW, the sensor itself rarely goes bad.

I've worked on enough Italian cars, and these bikes are no exception, to be smart enough to cover every exposed connection with some battery terminal spray (the red stuff like CRC 3175) to keep water, dirt, and muck out. See link below

https://www.amazon.com/CRC-Battery-Terminal-Protector-Aerosol/dp/B0013J7RAI
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