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P06B8 Powertrain · manufacturer code
P06B8 fault code: what 3 Ford owners reported
P06B8 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition belongs to the carmaker and is not in the generic OBD-II list. What it meant in practice is below, from 3 complaints owners filed with NHTSA. Updated November 3, 2026.
- 3owner reports
- 2car models
- 0mention a crash
- 0mention a fire
- 2014–2016model years
Which cars get code P06B8?
Every model whose owners mentioned P06B8 in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.
Ford Fiesta
1 reportWhere does P06B8 show up?
By brand
- Ford3
Component the owner filed it under
Is there a recall for P06B8?
As of November 3, 2026, no NHTSA recall on the cars reporting P06B8 names this code or its most-reported component. Recalls can be issued at any time: check your VIN at nhtsa.gov/recalls.
What happened when owners saw P06B8?
3 of the 3 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
NHTSA RECALL 18V-735 AND CODE P0606 INDICATES A FAULT IN THE ECM/PCM /P06B8 INTERNAL CONTROL MODULE TRANSACTION.
The vehicle is experiencing a common know issue with the TCM. After power loss, after having the battery replaced, the vehicle was having transmission issues. The Codes pulled from the car were P06B8 and P0606. These codes are well know with the Ford Fiesta for failure of the TCM. There is an extended warranty coverage for 2011-2015 Fiestas that should clearly extend to this year as well. It has the same transmission. Ford claims they corrected the issue with new parts. The part number on the cars PCM matches those of the extended warranty. The warranty is to extend to 100,000 miles or 10 years. The vehicle meets both those requirements. The vehicle was manufactured in the same facility in…
The contact owns a 2014 Ford Focus. The contact stated that the vehicle failed to start as needed. The contact used an OBD scanner to retrieve DTC: P06B8. The vehicle was diagnosed by an independent mechanic, who determined that the TCM needed to be replaced. The vehicle was not repaired. The contact related the failure to Customer Satisfaction Program: 14M02 (Transmission Control Module Extended Warranty Coverage); however, the vehicle was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 128,000.
P06B8: questions drivers ask
What does code P06B8 mean?
P06B8 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition depends on the carmaker and is not in the generic OBD-II list. 3 owners reported it to NHTSA, most often for the Ford Focus (2), Ford Fiesta (1); their reports describe what happened.
Which cars get code P06B8 most often?
In NHTSA owner complaints, P06B8 is mentioned most for the Ford Focus (2), Ford Fiesta (1), across 2 models and model years 2014 to 2016. Popular models collect more reports because more of them are on the road.
Is there a recall for code P06B8?
As of November 2026, no NHTSA recall on the cars reporting P06B8 names this code or its most-reported component. Recalls can be issued at any time, so check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P06B8?
Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.
How this page was made
CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P06B8. Manufacturer codes have no public standard definition, so CarHooq shows only what owners reported. Nothing here is a diagnosis. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 3, 2026. How CarHooq reports are made.
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