P21AB error code
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P21AB error code
My 2015 F350 threw a check engine light last week. I used a scanner to read the code and it was P21AB - Reductant level sensor. I was able to turn it off, but it came back on a day later. Bit the bullet and took it to the dealer to have it checked. I figured I was in for an $800+ repair fix to the DEF tank. Dealer called today and confirmed the DEF tank heater was bad and needed to be replaced. To my surprise, they said it was covered under warranty by Ford and would be zero dollars to me. I will take that any day of the week.
Thank you Bob Tomes Ford in McKinney Tx.
Thank you Bob Tomes Ford in McKinney Tx.
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