P20B9 Code?
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Posting Guru
Joined: Jul 2006
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From: Cleburne
P20B9 Code?
I have 2 codes popping up. One is a P20B9 "Reductant heater A circuit open". and the other is a historical. P20BA "Reductant heater A control performance" I have no idea what either mean. From what I have found, it's possibly a loos wire on the DPF heater? could that be the issue? If so, where? LOL.... If not, what should I check? I clear the code, it seems to stay off, until I kill the truck and restart it. Its a 2013 F250 6.7 just hit 6 figures on the mileage. It is not deleted, it's bone stock, and as far as I know it has allways been that way. But, I am the second owner. I have the means to test, and repair. Just don't, know what, or where to start? Any help to save me lots of dollars would be appreciated.
Post Fiend
Joined: Nov 2001
Posts: 6,748
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From: Tallassee, ALabama
You might still be within the warranty to get the DEF heater replaced. Ford recently extended the warranty. Contact your local dealer and see if your truck is eligible.
You can go to the Ford Owner site and register your truck. It should tell you if you are eligible or not. But option is to call the dealer.
Official Ford, Lincoln & Mercury Owner Site Personalized Owner Information
You can go to the Ford Owner site and register your truck. It should tell you if you are eligible or not. But option is to call the dealer.
Official Ford, Lincoln & Mercury Owner Site Personalized Owner Information
Thread Starter
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Posting Guru
Joined: Jul 2006
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From: Cleburne
You might still be within the warranty to get the DEF heater replaced. Ford recently extended the warranty. Contact your local dealer and see if your truck is eligible.
You can go to the Ford Owner site and register your truck. It should tell you if you are eligible or not. But option is to call the dealer.
Official Ford, Lincoln & Mercury Owner Site Personalized Owner Information
You can go to the Ford Owner site and register your truck. It should tell you if you are eligible or not. But option is to call the dealer.
Official Ford, Lincoln & Mercury Owner Site Personalized Owner Information
service. Will it tell me on the website, if it's still covered?
More Turbo
Joined: Oct 2003
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From: Central Maine
Thread Starter
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Posting Guru
Joined: Jul 2006
Posts: 1,148
Likes: 13
From: Cleburne
You might still be within the warranty to get the DEF heater replaced. Ford recently extended the warranty. Contact your local dealer and see if your truck is eligible.
You can go to the Ford Owner site and register your truck. It should tell you if you are eligible or not. But option is to call the dealer.
Official Ford, Lincoln & Mercury Owner Site Personalized Owner Information
You can go to the Ford Owner site and register your truck. It should tell you if you are eligible or not. But option is to call the dealer.
Official Ford, Lincoln & Mercury Owner Site Personalized Owner Information
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Posting Guru
Joined: Jul 2006
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From: Cleburne
And are these 2 items something I should have looked at? The media system did quit working for about a month, then all of a sudden, it started working again? LOL..
Post Fiend
Joined: Nov 2001
Posts: 6,748
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From: Tallassee, ALabama
Apparently your truck falls into the void where the DEF sensor/heater was not covered under the extended warranty. Recently, there was another forum member who is in the same boat as you are. Not sure why Ford did not cover all the 2011-2016 trucks.
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New User
Joined: Jan 2019
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Good evening, all. I, too, have gotten the "P20BA – Reductant heater control A – circuit performance problem code," and I took my '14 F350 to the dealer for service. Of course, they found the same code. They ordered the heater (which is now on back order). Because I need the truck daily I could not let it sit. What I need to know is how careful do I need to be driving the truck without the DEF tank heater. We are not real cold and not below freezing often. Ideas?
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Senior User
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Good evening, all. I, too, have gotten the "P20BA – Reductant heater control A – circuit performance problem code," and I took my '14 F350 to the dealer for service. Of course, they found the same code. They ordered the heater (which is now on back order). Because I need the truck daily I could not let it sit. What I need to know is how careful do I need to be driving the truck without the DEF tank heater. We are not real cold and not below freezing often. Ideas?
I did just replace my DEF heater on the 5th, so I drove it a few months with this issue. Mine also lands outside of the CSP as well. It just doesn't make sense why 18M01 skips the 13-15 F250's and F350's.
I purchased the Dorman (904372) heater and takes about an hour to do. It's a straight forward replacement and the hardest part of this was disconnecting the electrical connector above the tank before you can drop it.
Others can chime in but all in all you should be fine driving it while you wait for the parts. If you want to do it yourself and save some $$$ there's some good youtube videos on dropping the tank and replacing the heater. If you're going to wait and it will be a while, I'd think about getting a code reader to reset the CEL if you don't have one.
New User
Joined: Jan 2019
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DEF Heater
Thanks, L3 for the input. So far I have not noticed any problems, but I thought it to my advantage to hear what the boards have to say on the matter. I am also thinking of getting the Dorman unit, and I have a friend who is good (younger) at getting under the truck when I need. I did purchase a code reader just for my own peace of mind.
Thanks, again for the input.
Ray
Thanks, again for the input.
Ray
Cargo Master
Joined: Jan 2009
Posts: 2,769
Likes: 8
From: Lubbock
Mine is doing this. From my searching it appears they clear the code amd wait fornit to come back. Called the dealership they need to the truck 3 days minimum since they are behind. Glad i bought a vehicle i didnt need to drive
Laughing Gas
Joined: Apr 2007
Posts: 871
Likes: 74
From: Houston TEXAS
Add me to the list of victims..... 2015 with 41000 miles.
My check engine light came on Saturday with code P20B9 ... Problem with the reductant heater.
Truck also feels like it's running on reduced power, like about 60%.
Yay, now I get to take it to the dealer which is always pleasant.
My check engine light came on Saturday with code P20B9 ... Problem with the reductant heater.
Truck also feels like it's running on reduced power, like about 60%.
Yay, now I get to take it to the dealer which is always pleasant.
FTE Legend
Joined: Mar 2017
Posts: 31,760
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From: Western NY
The first item is the module behind the 8" touch screen of your truck. The second is for the EGT sensors in your exhaust. You have 4 in the exhaust system. I'm imagining that the warranty just extends the warranty coverage for either the APIM module behind the screen and for the EGT sensors if something happens.
Cargo Master
Joined: Jan 2009
Posts: 2,769
Likes: 8
From: Lubbock
If you have the ability. Record and clear the code to restore the power. I did that for a week or so to make sure it was a actual issue. You outside the bumper to bumper warranty so likely it will cost you money unless its under emissions warranty. Im at 31k on my 16. They replaced the heater on mine
Laughing Gas
Joined: Apr 2007
Posts: 871
Likes: 74
From: Houston TEXAS
If you have the ability. Record and clear the code to restore the power. I did that for a week or so to make sure it was a actual issue. You outside the bumper to bumper warranty so likely it will cost you money unless its under emissions warranty. Im at 31k on my 16. They replaced the heater on mine
Apparently the truck knows the circuit is broken on the DEF heater in real time. Not just at startup.
