Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

This answer was rated:

Check engine light on after replacing engine batteries.

Check engine light on...

Check engine light on after replacing engine batteries. Codes are spn 3216 fmi 9 and spn 3226 fmi 9

Mechanic's Assistant: Is the check engine light blinking or flashing, or is it solid? When did you last change the oil?

Also it went into the 5mph derate

Mechanic's Assistant: What's the make, model, and year of your car?

Its a 2012 Tiffin allegro bus 43 QCP with a 450 hp cummins XIS motor

Mechanic's Assistant: Is there anything else the Mechanic should know before I connect you? Rest assured that they'll be able to help you.

It drove great a month ago

Chat is completed

Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 5 minutes by:
11/26/2021
Technician: Nich1019, Cummins/Caterpillar Technician replied 10 months ago
Nich1019
Nich1019, Cummins/Caterpillar Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 2,898
Experience: Expert
Verified
Hello and welcome to JustAnswer! I'm Nick and I'll be helping you out today. These faults are for the intake and outlet nox sensors. If these fault came up right after replacing the batteries, check over the cables closely. The nox sensors each have their own fuse. The fuses could be blown or a wire/cable left disconnected in the battery box. Many OEMs have the nox sensor fuses in the battery box in small fuse holders.
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 10 months ago
Also I have ordered to OTR Reset Tool for Cumminsit's in the 5 mph derate now
Technician: Nich1019, Cummins/Caterpillar Technician replied 10 months ago

Once you don find the problem the faults will become inactive and the derate will go away. The check engine light will remain illuminated until 3 trips are made without an active fault. If there are no fuses in the battery box check your fuse panels to see if the fuses blew when the batteries were replaced. There will also be a relay for the nox sensors. Typically it's a shared relay for both sensors.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 10 months ago
I got other codes as wellFMI=0 Data Valid But Above Normal Operation Range- Most foundFMI=31Condition ExistSPN1569 Engine Protection Torque DerateSPN 3226 aftertreatment 1 outlet NOx
Customer reply replied 10 months ago
the three trips are not going to be fun at 5mph
Technician: Nich1019, Cummins/Caterpillar Technician replied 10 months ago

The other fault is a derate fault. The derate faults will become inactive once the problem is fixed. The 5mph derate will go away at that point. It's only the light that will still be on for 3 trips.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 10 months ago
Okay is it common for the relay to go out on the NOx sensors?
Technician: Nich1019, Cummins/Caterpillar Technician replied 10 months ago

It's not too uncommon for the relay to go out. Were you able to locate the nox sensor fuses?

Nich1019
Nich1019, Cummins/Caterpillar Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 2,898
Experience: Expert
Verified
Nich1019 and 87 other Medium and Heavy Trucks Specialists are ready to help you
Ask your own question now
Customer reply replied 10 months ago
I'm looking for them now
Customer reply replied 10 months ago
I found a 30Amp fuse bad
Customer reply replied 10 months ago
someone took out the relay and the fuse. I took it on a test drive the derate went away. Now I just need to regen it
Technician: Nich1019, Cummins/Caterpillar Technician replied 10 months ago
I apologize for the delay. I'm glad you found the issue!
Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 10 months ago
Thanks for the help.
We bought this motorhome from Copart .
It's been a learning experience
Technician: Nich1019, Cummins/Caterpillar Technician replied 10 months ago
No problem. If you have any follow up questions just let me know!
Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Nich1019 Your Own Question
Nich1019
Nich1019
Nich1019, Cummins/Caterpillar Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 2,898
2,898 Satisfied Customers
Experience: Expert

Nich1019 is online now

Related Medium and Heavy Trucks Questions
I have a 2013 volvo vnl with a cummins engine (serial#
I have a 2013 volvo vnl with a cummins engine (serial# *****). I am currently getting code spn-3360, spn-3216, and spn-3226 all related to the Aftertreatment. I had similar issues a couple of months a… read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,898 satisfied customers
Check engine light came on with two codes: FMI 5 and SPN
Check engine light came on with two codes: FMI 5 and SPN 3216 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Will code spn 3216 for nox sensor derate Cummins isx. No
Good evening…will code spn 3216 for nox sensor derate Cummins isx … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,898 satisfied customers
I have an engine light on. Here is the list of fault codes.
I have an engine light on. Here is the list of fault codes. Please let me know which ones are causing it and what I need to do. Thanks. 2015 Freightliner Cascadia · 3AKBGED56FSGS0138Code Last Occurred… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
2016 fREIGHTLINER CASCADIA cummins isx 15.. 484293 miles. I
2016 fREIGHTLINER CASCADIA cummins isx 15.. 484293 miles. I have these following fault codes. Please advise if need to change inlet and outlet sensors. 9 Engine Faults TxId: 0 SPN: 3216 – Aftertreatme… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
2014 Peterbilt 337 6.7 L 408 L6 PACCAR PX-7 Diesel 268189
2014 Peterbilt 337 6.7 L 408 CID L6 PACCAR PX-7 Diesel 268189 milesoriginal customer complaint: limp mode wont go over 40mph.what has been done: FOUND CHECK ENGINE LIGHT ON FOUND THE FOLLOWING ACTIVE … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,898 satisfied customers
Getting fault codes on 2017 kalmar ottowa t2 Spn 3216 fmi 9
Getting fault codes on 2017 kalmar ottowa t2 Spn 3216 fmi 9 Spn 3226 fmi 9 Spn 5743 fmi 9 Spn 6882 fmi 9 Spn 1761 fmi 9 Spn 3031 fmi 9 Spn 3364 fmi 9 Spn 1569 fmi 31 Spn 5246 fmi 0… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have a Peterbiltwith Cummins ISX 15, showing several codes
I have a Peterbilt(###) ###-####with Cummins ISX 15, showing several codes at first: SPN 1569, SPN 3226, SPN 5031. And now it began to show 40% derate service now checking light. Please help. DEF tank… read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,898 satisfied customers
Fault code spn 3216 fmi 5 Spn 3226 fmi 12 Spn 5246 fmi 16
Fault code spn 3216 fmi 5 Spn 3226 fmi 12 Spn 5246 fmi 16 Spn 5298 fmi 18 Son 3226 fmi 13 Spn 5394 fmi 5I cleared the codes and following came back right away Spn 5394 fmi 5 Spn 3216 fmi 5 Spn 3226 fm… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Check engine light on after replacing engine batteries.
Check engine light on after replacing engine batteries. Codes are spn 3216 fmi 9 and spn 3226 fmi 9 … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
2018 Freightliner M2 with a Cummins L9 CM2350. All engine
2018 Freightliner M2 with a Cummins L9 CM2350. All engine lights are on and is in full derate. VIN: 3ALACXFE0JDJK0157. Abs light is flashing, def level is full but the yellow light is on. Can't commun… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Got a Cummins 600 in a Tiffin motor home that just threw a
Got a Cummins 600 in a Tiffin motor home that just threw a son 3251 fmi code. Want to know if it will serape if I keep driving it? … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,898 satisfied customers
2017 TICO YARD MULE WITH A CUMMINS ENG #74076429. The truck
2017 TICO YARD MULE WITH A CUMMINS ENG #74076429. The truck is showing several codes can you help? Codes 2771, 3712 (RED), 3714,4151, 4152 and 6688… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
2014 peterbilt 579 cummins isx15 light in dash in shspe of
2014 peterbilt 579 cummins isx15 ***** *****ght in dash in shspe of engine with a wrench in it and fault codes system engine spn: 1209 FMI:4, system engine spn:1209 FMI:2, system engine spn:1569 FMI:3… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have three codes 1569--3216---4094 don't know what they
I have three codes 1569--3216---4094 don't know what they are can you assist … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have 2012 Volvo with an isx. A code just came up Spn 3226
I have 2012 Volvo with an isx. A code just came up Spn 3226 fmi 10 Can someone help figure out what this means?… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
Morning, I have a 2011 Freightliner M2106 w/8.3l L6 towed in
Morning, I have a 2011 Freightliner M2106 w/8.3l L6 towed in SPN 3226- FMI9 SPN1569-FMI31 Check engine light and Stop light are both on won't go over 5mph… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I bought a used 2012 Volvo VNL 780 with a D13 engine. It used
I bought a used 2012 Volvo VNL 780 with a D13 engine. It used to be a CRST fleet truck. It's just over 500,000 miles. Four weeks ago I got a spn 153 fmi 17 fault code and had a crankcase pressure sens… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x