RentAGuzzi Motorcycle Rentals & Tours – Los Angeles CA
  1. Ciao Guest, Welcome to the GT Forum! GuzziTech is now back to our origins; We hope you enjoy the Guzzi Global Community Forum here. NEW REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - AND PLEASE DON'T BE A DRIVE-BY POSTER: If you are posting on numerous sites on the web, please stop back and follow up. There is zero tolerance on personal attacks and off-site links to other Forums or competing products. Note there's decades of Guzzi hands-on experienced help on this site, all whom give endless amounts of their time for free - be courteous. Note all of our products and custom bike builds are now on our sister site; GTMotoCycles.com - Store tab above. You need a different username and password to get into the new GTM Store system - pending and past order info is available there. NOTE: We are not Amazon, we are a tiny one man operation with several business going at once - Sign into the Store to check on orders before contacting us. Thanks for your patience on orders. For those who are new here, the owner of this site (Todd - GT-Rx®) has been immersed in Guzzis since 1999. He's raced and wrenched for two-thirds of his life, both Pro dirt-track and road-race, and contributed to Cycle World Magazine from 2000~2007. He began Guzzi dyno performance modifying and fuel tuning in 2001, and has been wrenching them full time since 2007. His GT MotoCycles workshop has been open for ~4 years in Orange, CA. We do not have a phone number for this site or GTM, we're online only... do not ask us to call you. Click on the Service tab above for more info or to book an appointment -- it is not a retail shop to visit. If you're in L.A., you can come sample our work via our rental fleet - click the image link above. In a few short years GuzziTech.com will hit the 20 year mark of providing advice and tech tips for free. Understand that this is a privately paid for website, not a free social media platform littered with ads to help pay for it. Donations appreciated via the Account upgrade (see Site Support section below) or the Donate tab above, which unlocks all of the content here along with the Classifieds, Ask the Wrench sections and our Seasonal discount notices. Thank you for all of the continued support and contributions.

Error codes for 5AM ECUs

Discussion in 'CARC' started by GT-Rx®, Jan 14, 2012.

  1. GT-Rx®

    GT-Rx® Administrator Staff Member

    Joined:
    Jul 1, 2009
    Messages:
    10,183
    Likes Received:
    2,481
    Location:
    Malibu
    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 (this is my guess)

    ECU Error Code 10 - Error throttle valve C.C. Vcc
    ECU Error Code 11 - throttle valve C.C. Gnd
    ECU Error Code 14 - Engine temperature C.C. Vcc
    ECU Error Code 15 - Engine temperature C.C Gnd
    ECU Error Code 16 - Air temperature C.C. Vcc
    ECU Error Code 17 - Air temperature C.C Gnd
    ECU Error Code 20 - Low battery
    ECU Error Code 21 - Lambda sensor (O2 Sensor in exhaust)
    ECU Error Code 22 - Ignition coil 1 C.C. Vcc
    ECU Error Code 23 - Ignition coil 1 C.C. Gnd
    ECU Error Code 24 - Ignition coil 2 C.C. Vcc
    ECU Error Code 25 - Ignition coil 2 C.C. Gnd
    ECU Error Code 26 - Injector 1 C.C. Vcc
    ECU Error Code 27 - Injector 1 C.C. Gnd
    ECU Error Code 30 - Injector 2 C.C. Vcc
    ECU Error Code 31 - Injector 2 C.C. Gnd (This is not listed but I suppose that this is the function)
    ECU Error Code 36 - Pump relay
    ECU Error Code 37 - Local Loop-back
    ECU Error Code 44 - Relay starter C.C. Vcc
    ECU Error Code 45 - Relay starter C.C. Gnd
    ECU Error Code 46 - Canister C.C Vcc
    ECU Error Code 47 - Canister C.C. Gnd
    ECU Error Code 50 - Battery high
    ECU Error Code 51 - ECU general
    ECU Error Code 54 - Instrument panel
    ECU Error Code 55 - Autoadaptation Tito I (I have no idea what this is.)
    ECU Error Code 56 - Vehicle speed
    ECU Error Code 60 - Stepper C.A.
    ECU Error Code 61 - Stepper C.C. Vcc
    ECU Error Code 62 - Stepper C.C. Gnd
    ECU Error Code 00 - Unknown

    DASHBOARD ERRORS

    DSB 01 - Immobiliser fault: key code read but not recognised or key code not read
    DSB 02 - Key not present or transponder broken
    DSB 03 - Immobiliser fault: Antenna broken (open or short-circuit)
    DSB 04 - Immobilizer fault: internal controller fault
    DSB 05 - Fuel sensor fault
    DSB 06 - Air temperature sensor fault
    DSB 07 - Oil sensor fault DSB
    DSB 08 - Oil pressure fault

    The dashboard maintains memory of old errors.

    Engine oil sensor faults:
    The dashboard will reveal oil pressure faults as well as sensor faults. The oil sensor fault is detected with engine stopped and key in on position, if the sensor is not conducting (open circuit). This fault is indicated by lightening the warning “service” that will remain lit also with engine running.
    Abnormal oil pressure is indicated with engine running at an rpm higher than 2000 rpm and the sensor conducting (shorted). In this case the fault is indicated by lighting the icon “oilcan.” In both cases codes are stored in the diagnostic memory of the dashboard.
     
  2. Mi_ka

    Mi_ka High Miler

    Joined:
    May 14, 2010
    Messages:
    622
    Likes Received:
    1
    Location:
    Thessaly, Greece
    By the way, any idea if:
    Are the error codes sent once & then cancelled by ECU to dashboard special "clear" command / looped every x seconds from the ECU to dashboard?/ once on ignition ON etc or whenever?
     
  3. Griso Guy

    Griso Guy Cruisin' Guzzisti

    Joined:
    Feb 11, 2009
    Messages:
    149
    Likes Received:
    1
    Location:
    PA for now
    Error Code 60, stepper C.A. What does the CA stand for?
     
  4. kiwi dave

    kiwi dave GT Reference

    Joined:
    Oct 28, 2008
    Messages:
    1,731
    Likes Received:
    225
    Location:
    Auckland, New Zealand
    I've never seen the stepper motor on a wiring diagram. Why is this?
     
  5. john zibell

    john zibell Moderator Staff Member GT Famiglia

    Joined:
    Oct 28, 2008
    Messages:
    7,364
    Likes Received:
    571
    Location:
    Huntsville, AL
    I Guzzi calls it the automatic choke or automatic air. Depends on the diagram.
     
  6. john zibell

    john zibell Moderator Staff Member GT Famiglia

    Joined:
    Oct 28, 2008
    Messages:
    7,364
    Likes Received:
    571
    Location:
    Huntsville, AL
    These codes are really strange for all the error codes. They mean something to the engineer, but I've never seen an explanation of the codes. It sure would help everyone if the codes could be better interpreted.
     
  7. M0T0Geezer

    M0T0Geezer Cruisin' Guzzisti

    Joined:
    Mar 3, 2013
    Messages:
    116
    Likes Received:
    18
    Location:
    Sun City West, AZ
    What Guzzi bikes use the "5AM ECUs" ?

    Specifically, does the 2-Valve 2007 Moto Guzzi Norge 1200 USA use the 5AM ECU ?

    Thanks!

    'Geezer
     
  8. john zibell

    john zibell Moderator Staff Member GT Famiglia

    Joined:
    Oct 28, 2008
    Messages:
    7,364
    Likes Received:
    571
    Location:
    Huntsville, AL

    Yes
     
    M0T0Geezer likes this.
  9. V700Steve

    V700Steve High Miler GT Contributor

    Joined:
    Dec 8, 2008
    Messages:
    586
    Likes Received:
    195
    Location:
    Atlanta area, GA
    The 5AM was used on all the CARC bikes came in to US.
    The manual is set up w/codes ending up at a specific pin connector usually. Investigate that connector group.
    Stepper has 4pin connector and the only place wires go is brown side of ECU connector. 09,17,18,19. pin on ecu.
    When you are done cleaning pins, work stepper w/software to see if it works properly.
    There are many threads here on operation & diagnosis of the Idle motor(another name they use).

    Wow, plastic stepper is now $721.69 USD list. Should have bought one w/they were $200
     
    Last edited: May 11, 2019
  10. Nordicnorm

    Nordicnorm Cruisin' Guzzisti GT Contributor

    Joined:
    May 12, 2011
    Messages:
    135
    Likes Received:
    25
    Location:
    Vancouver Island BC
    With Guzzi being such a low volume production company, I can only guess that said stepper motor technology is used in other applications. It is manufactured by Magneti Marelli, so could likely be used in automotive applications. With no restrictions upstream of the stepper, it is capable of flowing a fair bit of air (I have spent a fair bit of time experimenting with this set-up), which could be ducted (split) to the intake manifolds of a 4 cylinder engine. Maybe the small Fiats that have been such a big hit in North America could be using this arrangement??

    Let the search begin!
    An affordable replacement from a source other than MG would be a nice find.
     
    V700Steve likes this.
  11. Brian UK

    Brian UK GT Reference

    Joined:
    Nov 6, 2008
    Messages:
    1,867
    Likes Received:
    87
    Location:
    Addlestone, Surrey, UK
    All CARC models the world over use the 5AM ECU, and yes, lots of stuff Guzzi use is common with Fiat. And Fiat prices are generally much lower.
     
    M0T0Geezer and V700Steve like this.
  12. john zibell

    john zibell Moderator Staff Member GT Famiglia

    Joined:
    Oct 28, 2008
    Messages:
    7,364
    Likes Received:
    571
    Location:
    Huntsville, AL
    There was another thread where it was mentioned that Ducati uses the same stepper.
     
  13. mylovelyhorse

    mylovelyhorse Tuned and Synch'ed GT Contributor

    Joined:
    Jul 29, 2018
    Messages:
    24
    Likes Received:
    10
    Location:
    Hampshire, UK
  14. Nordicnorm

    Nordicnorm Cruisin' Guzzisti GT Contributor

    Joined:
    May 12, 2011
    Messages:
    135
    Likes Received:
    25
    Location:
    Vancouver Island BC
    A few years ago my Jackal needed a new TPS. $350 from MG, $95 from a Ducati dealer in San Diego. Not the Harley TPS which was different, but the correct match for the failed unit.
     
  15. kiwi dave

    kiwi dave GT Reference

    Joined:
    Oct 28, 2008
    Messages:
    1,731
    Likes Received:
    225
    Location:
    Auckland, New Zealand
    A = Active
    M = Memorized

    You also have your wrench displayed indicating a service is due. Perhaps you have already done the service but haven't reset the display?

    To clear this and the memorized errors, turn the selector near the light switch to MODE.

    Enter the MENU function by briefly pressing the selector button in until MENU is displayed. Then select DIAGNOSTICS by pressing the same button again, holding to enter.

    You will be asked for the Service Code (which is 28315), enter by the same method by briefly pressing SET and releasing until the required number is displayed, then confirm the selection by pressing and holding the same button.

    Toggle through to the "RESET ERRORS" selection, press and hold to clear the memorized errors. Note that active errors cannot be cleared, only when the fault is fixed.

    Use the same procedure to get the the RESET SERVICE function. Press and hold to clear the wrench (spanner).
     
    Last edited: May 12, 2019
    mylovelyhorse likes this.
  16. mylovelyhorse

    mylovelyhorse Tuned and Synch'ed GT Contributor

    Joined:
    Jul 29, 2018
    Messages:
    24
    Likes Received:
    10
    Location:
    Hampshire, UK
    Yeah, thanks - sorted that out now :)
     

Share This Page