Cummins Qsk60 Fault Codes

[Zina Perko]

Cumminshas had many different engines throughout the years and variations of the same model. For example, the Cummins ISX15 engine existed from 2010 model years through 2018. Depending on which year range, it could be a Cummins ISX15 CM2250 or a CM2350. The table below gives an overview of all the diesel-powered Cummins engines that has coverage on Diesel Repair for fault codes.

Depending on which tool you use to retrieve fault codes from your Cummins engine, you may either see the generic SPN & FMI codes or the actual Cummins OEM fault code. You can use Diesel Repair to find information on these fault code both ways.

If you use a lower-quality tool or an electronic logging device (ELD), you will likely get an SPN, SID, and FMI fault code. Even the higher-end, dealer-level tools will display this information, but they will also show the actual OEM fault code.

To publish a list of every fault code would only do a little good, but we have published the most popular Cummins fault codes for some of their more recent engines. Inside Diesel Repair, you can find quick repair information for each of these codes for free, and paid members can enjoy our step-by-step repair directions to get fixed even more quickly.

Cummins Fault Codes can be difficult to diagnose and repair, but we have you covered with Diesel Repair. Remember, the quick repair information is always free. Enhanced technical repair information can be purchased with subscriptions requiring no contracts and canceled at any time.

This document contains a list of fault codes related to engine components and systems. It includes the fault code number, color, SPN, FMI, and a brief description of each fault. There are over 290 fault codes listed with issues ranging from sensor malfunctions to engine control unit errors to fuel system problems. The faults are applicable to a variety of engine models indicated by the columns with abbreviations like QSK19 and QSK60.Read less

The customer had some other codes that were active previously, and had already fixed the problem. However, the truck was still derated with the codes mentioned above and he wasn't sure how to fix it. The procedure:

Thank you, Tyler. Those two codes have turned a lot of my hairs grey! Where did you find that procedure? Here is something I posted in another forum a while back... just in case that doesn't work for someone.

"I went to a shop last week to look at this truck, two codes were in the PCM and would not clear. The shop diagnosed the truck with a bad particulate sensor. The sensor was replaced and the code did not come back. The 3712 and 3714 codes however would not clear, and the engine was in derate mode. Below you can see the conditions for clearing the code:

Conditions for Clearing the Fault Code: This fault code will go inactive once all other active fault codes have been addressed. Refer to the appropriate fault code troubleshooting tree. The ECM will turn off the red STOP ENGINE lamp immediately after the diagnostic runs and passes.

Conditions for Clearing the Fault Code: This fault code will go inactive once all other active fault codes have been addressed. Refer to the appropriate fault code troubleshooting tree. The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.

A regen and SCR test was performed post repair. All of the temps looked perfect and it passed all of the tests. The 3712 and 3714 still would not go away, there were absolutely no other codes. I have experienced this before, my simple minded explanation is that the codes are latched and there is a software issue. I decided to reflash the computer to the latest calibration. The codes were gone and everything was back to normal. I have also reinstalled the same calibration on ECMs that do not have an update available with the same success."

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I have my insight procedures pulled up and I can't find aftertreatment maintenance command found the rest of the procedures but not that step please help currently going through this issue at our shop

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