Ford F-350: Common Codes & Fixes

Real-world diagnostic data for the Ford F-350. These are the codes techs see most often. Tap any code for the full vehicle-specific fix and the exact part.

9 codes have specific fixes for the Ford F-350
B1325 Ground circuit open is almost always a corroded ground strap or bolt. 2005-2018 · easy DIY · 30-45 min B1601 PATS (Passive Anti-Theft System) key not programmed. 2005-2018 · easy (with 2 keys), hard (with 1 key) DIY · 15-30 min (self-program), 1 hour (dealer) P0263 Cylinder 1 contribution/balance on the 6.7L Power Stroke means cylinder #1 is producing less power than the other cylinders. 2008-2019 · hard DIY · 2-3 hours P0263 On older 6.0L and 6.4L Power Stroke diesels, P0263 is often caused by worn injector o-rings or stiction (injectors sticking from oil… 2003-2018 · easy (additive) / hard (injector) DIY · 15 min (additive) / 3-4 hours (injector) P0269 Cylinder 5 contribution fault — on the 6.8L V10 this typically indicates a failed coil-on-plug or a fouled spark plug (common after 80K… 1999-2016 · Moderate DIY · 1-3 hr P2031 6.7L P2031 = EGT sensor position 2 fault. 2011-2016 · moderate DIY · 1-2 hours P2452 6.7L PSD P2452 = DPF differential pressure sensor. 2011-2016 · moderate DIY · 1-2 hours P2454 6.7L PSD P2454 indicates DPF pressure sensor low-side fault -- usually a broken/kinked pressure tube. 2011-2016 · moderate DIY · 1-2 hours P2455 6.7L PSD P2455 = DPF pressure high. 2011-2016 · moderate DIY · 1-3 hours U0645 Super Duty trucks set U0645 when the cluster or the cluster's CAN bus wiring fails. 2008-2016 · Advanced DIY · 2-4 hours

Frequently Asked Questions

What are the most common check engine light codes on a Ford F-350?

The most commonly reported OBD-II codes for the Ford F-350 include B1325, B1601, P0263, P0269, P2031. Each code indicates a specific issue -- tap any code above for the full diagnostic breakdown.

How much does it cost to fix a check engine light on a Ford F-350?

Repair costs vary by code. Many Ford F-350 fixes like gas cap replacement, sensor cleaning, or spark plug changes are under $50 in parts and can be done at home. More complex repairs like catalytic converter or transmission work can run $500-$2,000+ at a shop.

Can I drive my Ford F-350 with the check engine light on?

It depends on the code. A steady check engine light usually means you can drive short distances safely. A flashing check engine light means stop driving immediately -- continued driving can cause serious engine damage. Scan the code first to know what you are dealing with.

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