Ford Diesel DEF System WARNING ⚠️ | P21DD, P20BA, U02A2 Codes Explained + TSB 23-2161 Fix!
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YouTubeFixbook
Ford Diesel DEF System WARNING ⚠️ | P21DD, P20BA, U02A2 Codes Explained + TSB 23-2161 Fix!
If your Ford diesel truck is showing a Check Engine Light (MIL) with any of the following DTCs, you could be dealing with a known issue covered under Ford Technical Service Bulletin TSB 23-2161 (NHTSA ID 10236685). 💥 Full List of DTCs Covered: P21DD, P20BA, P20B9, P204C, P208A, P208B, P208C, P203B, P205B, P21CD, U02A2 This video breaks it ...
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