P2104 — OBD-II trouble code

A manufacturer-specific powertrain OBD-II trouble code. Below are the vehicles and failure patterns where owners report it, drawn from NHTSA complaints.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P2104 across 15 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P2104 15 patterns

2011 Ford Fusion

electrical — Electronic Throttle Body Malfunction / Throttle Stuck Open or Closed

2009 Ford Fusion

cruise control — Throttle Body Malfunction / Reduced Acceleration

2009 Ford Fusion

engine — Electronic throttle body malfunction

2009 Ford Fusion

powertrain — Powertrain control module failure

2008 Ford F-150

cruise control — Unintended acceleration while braking

2006 Ford Freestyle

electrical — Electronic throttle body malfunction—surging, lunging, stall, loss of acceleration

2006 Ford Explorer

cruise control — Engine stalling or loss of power while driving

2005 Ford Expedition

electrical — Electronic Throttle Control (ETC) System Failures – Loss of Power/Acceleration

2005 Ford Five Hundred

cruise control — Unintended acceleration while stopped or at low speed

2005 Ford F-150

electrical — Engine Failsafe Mode / Stalling and Loss of Power

2005 Ford F-150

cruise control — Unintended sudden acceleration when braking

2005 Ford Expedition

powertrain — Electronic Throttle Control (ETC) Loss of Acceleration

2005 Ford Expedition

cruise control — Complete engine stall with loss of power

2005 Ford Explorer

electrical — Total electrical power loss and engine stalling while driving

2005 Ford F-250

powertrain — Engine stalling on deceleration with throttle body code

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →