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Old 09-28-2013, 01:46 PM
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P21B0 on 2011 F250

P21B0 - Reductant Level Sensor C Circuit High Truck is throwing this code, any idea what it means and how it might be fixed???


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Old 06-05-2015, 08:41 AM
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P21B0 - Reductant Level Sensor C Circuit High


I have a Ford F250 2011 and a CEL showed up and the dealer after $120....
P21B0 - Reductant Level Sensor C Circuit High. Does anyone know the parts to fix this? Does it cause any issue for DIY? What are the part numbers for repair parts and where can they be ordered?

My truck is starting loose its appeal after the issues I have had after only 6 months of owning it. I am seriously considering going the DELETE route.
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