![\"P20B9](\"https:\/\/www.motoraudit.com\/wp-content\/uploads\/2021\/07\/P20B9-Code-On-6.7-Powerstroke.jpg\")
<\/figure><\/div>\n\n\nWhat Does P20B9 Code Means On 6.7L Powerstroke? <\/h2>\n\n\n\n
PD209 is one of the diagnostic trouble codes of the Ford 6.7L engine. By definition, this error code means Reductant Heater A Control Circuit\/Open. <\/p>\n\n\n\n
When the PCM (Powertrain Control Module) detects zero-voltage of the reductant heater A, it stores the DTC P20B9. You might be wondering, why is it marked with the letter \u201cA\u201d?<\/p>\n\n\n\n
Well, three on-board reductant heaters are located in the control circuit. To specify & navigate them correctly, they\u2019re named Reductant Heater A\/B\/C. <\/p>\n\n\n\n
The DEF (Diesel Exhaust Fluid) tank needs heater A to prevent the fluid from freezing up. When heater A cannot produce heat due to no voltage, the error code P20B0 shows up. <\/p>\n\n\n\n
Symptoms Of Getting The P20B9 Code On A 6.7<\/h2>\n\n\n\n
Just like every other DTCs of the Ford 6.7L engine, P20B9 comes with some visible symptoms. Expect to have a P20B9 error code if you\u2019re noticing some of these symptoms mentioned below:<\/p>\n\n\n\n
- \n
- Check Engine Light (CEL) is Active <\/strong><\/li>\n\n\n\n
- Excessive Black Smoke From Exhaust Panel<\/strong><\/li>\n\n\n\n
- Poor Fuel Economy or Mileage Per Gallon (MPG)<\/strong><\/li>\n\n\n\n
- Sluggish Driving Experience<\/strong><\/li>\n\n\n\n
- Other Selective Catalytic Reduction Related Codes <\/strong><\/li>\n<\/ol>\n\n\n\n
Be sure of getting this DTC if you\u2019re having three or more symptoms mentioned above. <\/p>\n\n\n\n
The Causing Factors Of The Error Code P20B9<\/h2>\n\n\n\n
This code is all about the heater A being defective. It\u2019s obvious that the causing factors of this error code will be related to the heater A, such as:<\/p>\n\n\n\n
- \n
- Faulty Reductant Tank Heater A<\/strong><\/li>\n\n\n\n
- Open or Shorted Harness Of Reductant Heater <\/strong><\/li>\n\n\n\n
- Poor Electrical Connection Related To The Heater <\/strong><\/li>\n\n\n\n
- Shorted or Failed DEF Supply Line <\/strong><\/li>\n\n\n\n
- Damaged PCM\/SCR (Rare Case)<\/strong><\/li>\n<\/ul>\n\n\n\n
Any of these mentioned causes is enough to bring up the DTC P20B9 & mess up your driving experience. <\/p>\n\n\n\n
How Seriousness Is Code P20B9 On 6.7L Powerstroke <\/h2>\n\n\n\n
The seriousness of this code depends on the weather condition. If you\u2019re living in a warm region & this code pops up, you won\u2019t have to be as panicked as someone from a cold region. <\/p>\n\n\n\n
In summary, fix this code as soon as possible if you\u2019re living in cold weather. If the DEF (Diesel Exhaust Fluid) freezes up, it can harm the DEF tank severely & you wouldn\u2019t want that to happen. <\/p>\n\n\n\n
How to Solve P20B9 Error Code On 6.7L Powerstroke?<\/h2>\n\n\n\n
You may think replacing the reductant heater A can only eliminate this code, but no \u2013 other ways of solving this code are also available. <\/p>\n\n\n\n
Before proceeding to the fixing operation, make sure to have your equipment ready. You\u2019ll need equipment, such as:<\/p>\n\n\n\n
- \n
- Safety Goggles, Gloves & Flashlight <\/strong><\/li>\n\n\n\n
- Scanner & DVOM (Digital Volt\/Ohm Meter)<\/strong><\/li>\n\n\n\n
- Correct Sized Socket, Ratchet & Extensions<\/strong><\/li>\n<\/ol>\n\n\n\n
If you\u2019re ready with the equipment, let\u2019s get started with the troubleshooting methods:<\/p>\n\n\n\n
Check The SCR Control System<\/h3>\n\n\n\n
You\u2019ll need the DVOM to test your SCR (Selective Catalytic Reduction) control system. First, test the fuses. Make sure the circuit is loaded to avoid misdiagnosis. <\/p>\n\n\n\n
If you\u2019re noticing reasonable battery voltage & ground circuits, head over to the next step. Activate the heater\/s with the scanner & check output control voltage. Replace the SCR controller if the voltage is insufficient. <\/p>\n\n\n\n
Replace The Temperature Sensor<\/h3>\n\n\n\n
It\u2019s possible that your temperature sensor is damaged & it\u2019s sending wrong information to the PCM. Later on, PCM is \u2018thinking\u2019 diesel exhaust fluid is about to freeze & splits the DTC P20B9. <\/p>\n\n\n\n
Consider replacing the temperature sensor & clear the code. If the code reappears after a few minutes of driving, suspect the reductant heater A. <\/p>\n\n\n\n
Replace Broken Glow Plugs <\/h3>\n\n\n\n
Broken glow plugs tend to reduce engine performance over time. If you\u2019re noticing your glow plugs broke, about to break \u2013 replace them with a new set of glow plugs. <\/p>\n\n\n\n
Doing this low-cost task can fix your P20B9 error code if you\u2019re lucky enough. If not, follow the next method & it should be the ultimate cure for this DTC. <\/p>\n\n\n\n
Check & Replace Reductant Heater A<\/h3>\n\n\n\n
Check wirings, hoses related to the reductant heater A. Don\u2019t forget to check the electrical connectors while visually inspecting. Use proper equipment to reach Heater A. <\/p>\n\n\n\n
If you determine the heater is the main culprit \u2013 replace it as soon as possible.<\/p>\n\n\n\n
How Much Does It Cost To Solve The Error Code P20B9?<\/h2>\n\n\n\n
Considering you need to replace the reductant heater A to solve this error code, you\u2019ll have to spend $300 to $500 on the heater itself. <\/p>\n\n\n\n
Additionally, you can choose to install this heater on your own to save another 150+ bucks on labor cost. If luck isn\u2019t in your favor, you may end up replacing the PCM for $500 (without labor cost). <\/p>\n\n\n\n
Common Mistakes While Solving The P20B9 Code<\/h2>\n\n\n\n
Be very careful while solving the P20B9 code. Don\u2019t make these common mistakes mentioned below:<\/p>\n\n\n\n
- \n
- Not Checking The Temperature Sensor Before Replacing The Heater <\/strong><\/li>\n\n\n\n
- Not Checking Everything Else Before Replacing The PCM<\/strong><\/li>\n<\/ul>\n\n\n\n
Additional Comments To Consider Regarding The P20B9 Code <\/h2>\n\n\n\n
The freezing point of diesel exhaust fluid is -11\u00b0 Celsius or 12\u00b0 Fahrenheit. If you\u2019re living somewhere warmer in comparison to the freezing point of DEF, you don\u2019t have to worry about it (initially). <\/p>\n\n\n\n
However, I highly recommend getting rid of this code as soon as possible despite your weather condition. If you keep ignoring this code for a longer period, your engine may catch bigger damages. <\/p>\n\n\n\n
Conclusion<\/h2>\n\n\n\n
I hope this article was informative enough to know the DTC P20B9 properly. Now you can inspect & repair this error code on your own. <\/p>\n\n\n\n
You can fix this error code even if you\u2019re new to the Ford 6.7L engine. Yes, you\u2019ll need to take professional help if your PCM is faulty & needs to be replaced.<\/p>\n\n\n\n
- \n
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Ford 6.7L engines throw a bunch of DTCs (Diagnostic Trouble Codes) to inform users about the irregularity…<\/p>\n","protected":false},"author":8,"featured_media":5847,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[9],"tags":[],"_links":{"self":[{"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/posts\/1073"}],"collection":[{"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/comments?post=1073"}],"version-history":[{"count":4,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/posts\/1073\/revisions"}],"predecessor-version":[{"id":7918,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/posts\/1073\/revisions\/7918"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/media\/5847"}],"wp:attachment":[{"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/media?parent=1073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/categories?post=1073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.motoraudit.com\/wp-json\/wp\/v2\/tags?post=1073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Read Also>><\/strong>What Is P1247 code on 7.3 Powerstroke: How To Fix?<\/a><\/li>\n\n\n\n
- Not Checking Everything Else Before Replacing The PCM<\/strong><\/li>\n<\/ul>\n\n\n\n
- Scanner & DVOM (Digital Volt\/Ohm Meter)<\/strong><\/li>\n\n\n\n
- Open or Shorted Harness Of Reductant Heater <\/strong><\/li>\n\n\n\n
- Excessive Black Smoke From Exhaust Panel<\/strong><\/li>\n\n\n\n