Fault codes P04db & P20ba - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 10-26-2019, 01:46 PM Thread Starter
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Fault codes P04db & P20ba

I have the Google definitions of these, but don't understand them. Does anyone have experience with these?

1997 F250 4x4 ext cab 5spd

2015 F350 lariat fx4 cc drw
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post #2 of 5 Old 10-26-2019, 02:02 PM
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http://www.fordservicecontent.com/fo...DOBDSM1401.pdf

Page 108 for code P04DB

P20BA code is for "Reductant Heater A Control Performance". I believe its the heater in the DEF tank. May still be covered under warranty

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post #3 of 5 Old 10-30-2019, 11:53 AM
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If you're going to get the P04DB "Crankcase Ventilation System Disconnected" code fixed, there's a Consumer Satisfaction Program (17M04) that's still open. The dealership should replace/repair the CCV oil separator assembly for free...
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post #4 of 5 Old 10-30-2019, 05:13 PM Thread Starter
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This is good information, thank you guys

1997 F250 4x4 ext cab 5spd

2015 F350 lariat fx4 cc drw
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post #5 of 5 Old 11-04-2019, 10:49 AM
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Originally Posted by Henry5105 View Post
If you're going to get the P04DB "Crankcase Ventilation System Disconnected" code fixed, there's a Consumer Satisfaction Program (17M04) that's still open. The dealership should replace/repair the CCV oil separator assembly for free...
My f450 threw a CEL bout a month ago on a friday....stopped by AZ and they hooked up a scan tool and said it was the P04db code...come monday when got back in the truck no more CEL ... called my service adviser at dealership....said to bring it in when I had the time... kinda forgot about it then bam got same code last Tuesday, took it in to the dealer and reads same code.... took about 90 minutes and on the service ticket $0 cost done under 17M04 ...pleasant supprize indeed

In the mean time i ordered an ODB Link MX+ scan tool so i can read my own codes....and do other things

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