Jump to content

REGARDING CATERPILLER C15 ENGINE ERROR TROUBLESHOOTING


Recommended Posts

“Mot/5246-16” is a code telling you that “Mot/3516-18” has been on for a while and the operator has ignored it and that you must do something now. Most likely machine went into derate. I see there are three codes but only two posted. I would say check your Diesel Exhaust Fluid level and make sure no one added anything but Quality Diesel Exhaust fluid. If you don’t know drain the tank and put quality DEF in it. 

  • Like 1
Link to comment
Share on other sites

Try what I said about the DEF and making sure it’s good quality. I’d just drain the tank and put good stuff in. Let us know what happens, it could be a bad sensor….All these codes are tied together. 

Edited by Onyx610
  • Like 1
Link to comment
Share on other sites

As per monitor soot level is 73% so we tried to regeneration process manually but then below-attached error also coming 

And also I attached here the DEF fluid photo which is we are using currently.

Please suggest any troubleshooting guidance 

👏

IMG-20220203-WA0017.jpg

IMG-20220203-WA0026.jpg

Link to comment
Share on other sites

Dear Sir,

Once again I am a little bit explaining here about the error 

Below 3 errors is continuously displayed on the monitor

1) MOT/3516-18

2) MOT/5246-15

3) MOT/5246-16

Soot level is present: 7.05 h

presently Diesel Exhaust Fluid level is: 76%

site team already drained DEF and refilled again new DEF.

but the error is the same.

When the Manual regeneration switch is on then the below error is also displayed on the monitor 

1) MOT/3750-15 Aftertreatment 1 Diesel Particulate Filter Conditions Not Met for Active

Regeneration

- Data valid but above normal operating range - least severe level

2) MOT/6-31 Not available or condition exists

Screenshot_20220203-181952_WhatsApp.jpg

IMG-20220203-WA0017.jpg

IMG-20220203-WA0013.jpg

Link to comment
Share on other sites

Bro we are truck guys here However most of this junk operates in a similar fashion Can you locate the def dosing valve it will likly be mounted in front of the after treat box? if you can remove it and check for crystal formation this would identify an issue with that injectors spray Or an exhaust leak near it also There is a possibility the def pump has failed! Again there maybe some one on the site here that is familiar with the cat way of doing things so keep checking back here! 

Edited by fjh
  • Like 2
Link to comment
Share on other sites

Remove the diesel exhaust dosing valve/injector and make sure it’s clean like FJH said. If all is good there I would suggest a DEF Quality Sensor. We will gladly try and help you out the best we can, here’s another website that might have some knowledgeable people on this. 
 

https://www.heavyequipmentforums.com

Edited by Onyx610
  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...