FORUM

Please leave a question below and the JCB Service team will do their best to answer.

Browse through previous questions as yours may have already been answered.

Please Note: This page is not for machine diagnosis.  If you need service assistance,
Contact your Dealer or JCB Representative.

117 Comments

    1. admin

      David we do not diagnosis error codes on this site. You can call your local JCB Dealer, Area DSM, or contact JCB Service Direct. Thanks for the comment and we look forward to working with you. Thanks, Admin

    1. admin

      This code stands for Short Circuit at Fuel Pump Motor. You could have a bad connection or cut wire. The pump may also be shorting and beginning to fail. I hope that helps. Thanks, ADMIN

    1. admin

      This is for the Tier 3 machines which we no longer use the flushing valve on the tier 4. In Service Master there are help files that can assist also. On techweb there are several calls that relate to your code. Your code is for an open circuit. Thanks, Randy

    1. admin

      Mourad thanks for the comment. P codes are engine faults and can be found in Service Master or on this site. We do not diagnosis machines on this site. You would need to contact your local dealer or JCB Technical Support if you are an authorized dealer. JCB would be glad to assist if possible. Thanks, Admin

    1. admin

      Q Codes are for the Cummins Engine, In Service Master you can find the Cummins Engine Codes. Both codes are for Coolant sensor concerns. The 235 code is for Coolant Level Low. We are working to update the site with all codes very soon. Thanks, Admin

    1. admin

      Sean this code sounds like a code seen on our 525-60 machines which is new to the product line. We are working to get all error codes updated on this site. Typically the B codes on that machine are related to battery voltage errors. Either over voltage or under voltage. This could be caused from a power surge or either the excite wire on the alternator. If you need further assistance please contact you local JCB dealer as we cannot diagnosis machines here. Thanks, ADMIN

  1. Gary

    I have 3 codes on my new 2015 tm 320. All of them says not found. All start with P.
    Website not up to date for these newer machines?

    1. admin

      Gary the P Codes are engine error codes and all Engine Codes are listed. Also if you would like to find P codes use your Service Master Help Files to locate the P codes. Since the diesel engines are alike you can also google the P Code. Thanks, Randy

    1. admin

      David thanks for the question. Our JCB Dealers would be happy to assist you on the diagnosis of the machine if needed. The Error 102 will be added here if needed and also updated. We do not diagnosis machines here though. Thanks, Admin

    1. admin

      Jon, thanks for the information and we would be glad to have you contact a dealer for support. We do not diagnosis machines on this site. This site is for fault code definition only. Please feel free to use the dealer locator for any service assistance. Thanks, ADMIN

    1. admin

      Darren would like to help but you have not shown an error code so the site will not be able to help. You can use the dealer locator on the site to locate the nearest dealer and they can assist with diagnosis of the machine. Thanks, ADMIN

  2. Darren

    Hi have engine management light on in a 434s showing up code Q0428 but showes up hear as a fastrack any advice be much appreciated !!??

    1. admin

      The code is a Cummings Engine Code. The Fastrac has the same engine so the code would apply. The code stands for water in fuel. This would be either an actual water in fuel fault or the sensor fault. Thanks, ADMIN

  3. Petras

    Hello, I Have two fault codes (P0183-24 and P0181-27) on my JCB 535-95 agri-super LoadAll (2012 y.). Can you help me with that? I found it on this website, but maybe you explain more about these two? Is that seriuos problem?

    1. admin

      These codes are relating to fueling issues with the Sensors. I suggest you locate a JCB Dealer to repair as fuel contamination is very easily done on the Tier 4 machines. Thanks, ADMIN

    1. admin

      The code on the Fastrac stands for the brake pedals not agreeing, switches or wiring could be faulty. This would also be why you are seeing the symbols on the dash. You will need to locate a dealer for parts or diagnosis of this issue. Thanks, ADMIN

  4. Niall

    I have a JCB 310s error code E 729.starts and then cuts out, after awhile it will start and run perfect no lights showing and code goes off screen can you help thanks.

    1. admin

      This code is referring the engine powertrain. I would start with fuel pressure on the machine. Also we cannot diagnosis the machine on this site. I recommend calling your local dealer for assistance. Thanks, ADMIN

  5. Albert Hoogendoorn

    Hi there,
    I have a rock truck 722 and it works excellent.
    On the screen is a code ZF DA ,
    Can you tell me what that means.
    Thank you in advance
    Sincerely,
    Albert hoogendoorn

    1. admin

      ZF codes are transmission codes. There should be more than just ZF though you should see numbers. We cannot diagnosis this for you but your local JCB Dealer would be happy to help and they would be able to refer to us if needed for assistance. Thanks, Admin

    1. admin

      The codes show on the site as Operator controls and the Forward/Reverse signal from the joystick out of range. Its possible you have lost signal to the transmission signal sensor on the rail of the transmission actuator. Its basically not seeing the actuator spinning the rail to select gears. You will need to contact a JCB dealer for diagnosis. We cannot diagnosis on this site. This is used for fault code reading only. Thanks, ADMIN

    1. admin

      I am not familiar with the machine enough to diagnosis and we cannot diagnosis on this site. The Z codes are transmission error codes so possibly the machine thinks it is in gear. Thanks ADMIN

    1. admin

      Ryan thanks for letting me know the code did not come up I will make sure the site is updated. Also have you used Service Master help files on the 525-60 AG to locate the code? T Codes are transmission codes and usually relate to battery voltage spikes or not enough battery voltage seen to tell the machine Transmission ECU it is not in gear. Please use Tech Web Dealer Portal to list faults for the machine and serial number and diagnosis. Thanks ADMIN

    1. admin

      Thanks for letting us know of the code not being on here. This is a Cummings Engine code for the EGR percentage too high. I would suggest use your Service Master diagnostic tool to run the EGR learn test that will complete and EGR Learn and sweep test. This should get you back going. We will make sure that all Tier 4 codes are updated on the site. Thanks ADMIN

    1. admin

      Accelerator Pedal Position fault at the sensor. Leave the 0 off the code. Type E716 because that is how the code is actually read. Thanks, ADMIN

    1. admin

      Contact a JCB Dealer this is not a site for part location and machine information. This site is for error codes seen on the machines. Thanks, ADMIN

    1. admin

      The 167F is not an error code for JS machines. We have looked through our Service Master help files and there is no code that matches that. You will need to contact your local JCB Dealer for diagnosis. Thanks, ADMIN

  6. Steve

    Error code p0826-64 on dash of 3cx compact. Code not found in search. Any ideas? Will be traveling to machine tomorrow.

    1. admin

      Using your service master help files on the error code due to the machine being so new you can locate the codes in the Fault Code section of the help files. The fault diagnostic steps are listed there also. I would suggest if you need to view them for support to check out the help files, fault codes, click on the error code, and view steps. I cannot paste the files here or I would. The error is for a transmission oil pressure sensor. Thanks, Randy

    1. admin

      Mark not sure what you are requesting here but this site is for error code diagnostics. If you are needing an unlock code you must go through either the Service Master Unlock Tool on the Dealer Portal or you must enter a tech web call with all associated information requesting the unlock. We cannot provide it here. Thanks, Admin.

    1. admin

      Thanks for the comment on the application. We are working to better utilize the site and update it. ADMIN

    1. admin

      If you have a smartphone open your web browser and type in the site http://www.jcbservicecode.com. Once on the site use your phone options (i have a IPHONE 6) to add webpage to home screen. This will apply the site to your home screen so the site is one click use.

    1. admin

      This fault code is not pulling up in our systems can you please verify for us what the model and serial number of the machine is and we will better assist you. Thanks, ADMIN

  7. Eduardo Cofre

    tengo un problema con la luz del calefactor de la admisión en una retroexcabadora 3cx esta prende parpadeando con una destello largo y uno corto y se repite porfavor necito su ayuda

    1. admin

      This blink code is listed in the service master help files for the backhoe loader and also listed in the Service Manual. Please contact your local JCB Dealer for further fault finding steps to diagnosis. Thanks, ADMIN

  8. John

    Code P2135 “Foot Pedal Corrolation track 1 over track 2 fault detected”
    Code P0220 “Foot pedal signal track 2 fault”
    JCB RTFL 940. We have replaced the throttle pedal assy. Codes still present.

    1. admin

      The throttle is electronic controlled through the engine ECM. You will need to contact your local JCB Dealer for assistance as we cannot provide steps for diagnosis here. Thanks, ADMIN

  9. Cole

    Have a 3CX (3CXSM4TPC #3CXPCV91616926)
    Has the error message BHC ROOT accompanied by the right instrument cluster turning off.
    I searched for the BHC ROOT code but nothing came up.
    It is intermittant, happens 4 times a day or once a day or runs all day without fail.
    Any ideas?

    1. admin

      RHC BOOT is for the right hand cluster boot mode which means you have a cluster that if failing or possible water ingress in the connections causing the interment failure. This site is not for technical diagnosis and you should contact your local JCB Dealer for assistance on parts and steps to fault finding if needed. Thanks, ADMIN

    1. admin

      Depending on machine model and type the service indicator lights and buzzer can be reset using either Service Master or through the RH Panel. This would need to be completed using your Service Manual or a local area JCB Dealer who can provide that information. Thanks, ADMIN

  10. laborde nicolas

    en possession d’une TM 310 avec presque 5000 heures de 2008,codes moteur ECU e 780 et e702.
    Le moteur démarre normalement puis ce coupe vite après l’allumage du voyant ECU, on attend redémarre et sa remarche normalement un certain temps,si vous pourriez nous aiguiller plus précisément que les commentaires des codes pannes,merci

    Cordialement.

    1. admin

      I translated your text and have asked for assistance here from our techs. The best course of action is to have this machine either visited by a JCB Dealer for diagnosis or have the machine transported to an authorized JCB Dealer for diagnosis. This way the communication port can be accessed and used. Thanks, ADMIN

  11. admin

    Please contact a local JCB Dealer who can connect to the machine and diagnosis the error codes as this site is not used for diagnosis of the machine and providing the correct part failed. Thanks, ADMIN

  12. admin

    The blink codes can be found in the service manual. I would contact your local JCB Dealer for help with the blink codes which they should be able to provide the proper definition of the blink

  13. admin

    John good day, you will need to contact your JCB Dealer. There is no serial number you provided so we do not know what machine you are working on. I would suggest contacting your dealer using the JCB Dealer Locator and provide information on the machine. Could be air in the circuit causing boom/bucket chatter. Thanks, ADMIN

  14. Rupanjan Dasgupta

    B1546
    JS EXCAVATOR
    CODE DESCRIPTION

    Coolant Temperature High (Operator Level)

    Dear Sir,

    Kindly advice what will the next course of action.

    1. admin

      Rupanjan,
      Please contact a local JCB Dealer who can give an in depth diagnoses of the error code along with proper trouble shooting steps. Thanks, ADMIN

    1. admin

      Unfortunately, at this time the website does not have the capability of automatically translating fault code descriptions into languages other than English.

  15. admin

    Matthew,
    Unfortunately “31” is not a useable fault code. This machine will give various flash patterns of the 4
    wheel drive LED of the related errors. All Errors are
    displayed instantaneously, except for those related to
    speed sensors. These are shown after 30 second of
    driving.
    The error code is continuously repeated, if
    there is more than one error the first error is displayed then
    there is a pause before the next error is displayed i.e.: . _ .
    . pause _ . _ _.

    The blink codes can be found in the machines service manual. I would contact your local JCB Dealer for help with the blink codes which they should be able to provide the proper definition of the blink itself along with proper trouble shooting steps.

  16. Rhydian

    Hi, error code LOOS and `STOP NOW` with buzzer on came up on my 526-56 handler. Code states -down or upstream NOX sensor loose,where are these located and is it OK to use machine? Thank you.

    1. admin

      Please make sure the codes are not S084 and S086. If these are the codes. S084 is Left Stabilizer Transducer Out of Range. Disagreement Exists Between RAS Controller and Right Hand Instrument Cluster due to a Fault with Left Stabilizer Transducer or Machine Harness. S086 is Right Stabilizer Transducer Out of Range .Disagreement Exists Between RAS Controller and Right Hand Instrument Cluster due to a Fault with Right Stabilizer Transducer or Machine Harness.

    1. admin

      This code T1400 stands for range change solenoid fault. Gonzo we do not diagnosis error codes on this site. You can call your local JCB Dealer, Area DSM, or contact JCB Service Direct. Thanks for the comment and we look forward to working with you. Thanks, Admin

  17. Gilbert

    I have a code on my display from a JS130W sn.:717058 : error82
    does someone have an idea what this means?
    The handbrake is blocked!

    1. admin

      Gilbert we do not diagnosis error codes on this site. You can call your local JCB Dealer, Area DSM, or contact JCB Service Direct. Thanks for the comment and we look forward to working with you. Thanks, Admin

    1. admin

      Gafur we do not diagnosis error codes on this site. You can call your local JCB Dealer, Area DSM, or contact JCB Service Direct. Thanks for the comment and we look forward to working with you. Thanks, Admin

    1. admin

      You can call your local JCB Dealer, Area DSM, or contact JCB Service Direct. Thanks for the comment and we look forward to working with you. Thanks, Admin

    1. admin

      These codes are making the internal ECU to think that each of the powershift solenoids are open circuit. Please consult with a local JCB dealer to receive further advisement on diagnostics and repairs. Thank you.

    1. admin

      Please consult with a local JCB dealer as they will have to perform further diagnostics to assess the code and the related issue on your machine. Thank you.

    1. admin

      This code is for the external hydraulic lockout. Please consult with a local JCB dealer for further advisement on the issue. Thank you.

    1. admin

      These codes are for the aux a and b solenoids short circuit to positive. Please contact your local JCB dealer for further advisement on repairing the issue. Thank you.

  18. Kenn

    I have changed a faulty hydronic hose from the top of the transmission filter to the transmission thermostat on my 3200 extra fastrac and now I’m getting a gear light and a fault code of T1231. Any help?

  19. Graham Neil

    We have a Fault code of W1F on our Telehandler, any clues please.

    I’ve looked through your fault code finder, but it’s coming up ‘not found’????

    1. admin

      Please contact your local JCB dealer for further assistance. This fault code will need to be diagnosed by a certified JCB technician. Thank you.

    1. admin

      Please contact your local JCB dealer for further assistance. This fault code will need to be diagnosed by a certified JCB technician. Thank you.

    1. admin

      Please contact your local JCB dealer for further assistance. This fault code will need additional diagnostics performed by a certified JCB technician. Thank you.

  20. Dan

    P3401-87
    BACKHOE
    CODE DESCRIPTION

    excessive ambient/operating temperature error for aftertreatment 1 scr catalyst reagent property

    any help on this would be appreciated. JCB 4CX tier 4 final imported into Australia

    1. admin

      Please see your local JCB representative as this is a aftertreatment fault code that needs to be addressed by a certified JCB technician. Thank you.

Leave a Reply to Ryan Cancel reply

Your email address will not be published. Required fields are marked *