P2004 — 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 P2004 across 7 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 P2004 7 patterns

2019 Subaru Forester

powertrain — Thermal Control Valve Assembly (TCVA) / Engine Coolant Bypass Valve

2017 Nissan Altima

engine — Intake Manifold Runner Control (IMRC) Valve Position Sensor Failure

2014 Nissan Rogue

engine — Intake manifold runner control (P2004) - plastic component failure

2008 Chrysler Sebring

powertrain — Brake Shift Interlock Failure (Stuck in Park)

2008 Dodge Avenger

engine — Engine Stalling - Intermittent and Unpredictable

2006 Volkswagen Passat

fuel system — Fuel pump failure causing engine stall

2005 Mazda Mazda3

engine — Fuel system failures and check engine light cycling

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 →