P2440 — 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 P2440 across 18 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 P2440 18 patterns

2012 Toyota Tacoma

engine — Secondary Air Injection Valve Stuck Open/Closed

2012 Toyota Tacoma

powertrain — Secondary Air Injection System Valve Failure (P2440/P2442)

2012 Toyota Tundra

engine — Secondary Air Injection (SAI) System Failure — Pump and Valve

2012 Toyota Tacoma

cruise control — Secondary Air Injection (SAI) System Failure – Valve Malfunction

2012 Toyota Tacoma

electrical — Secondary Air Injection System Failure

2011 Toyota Tundra

engine — Secondary Air Injection Pump / Valve Failure

2008 Toyota Tundra

powertrain — Secondary air injection system failure

2008 Toyota Tundra

engine — Secondary air injection pump and switch valve failure

2007 Toyota Tundra

cruise control — Acceleration loss / limp mode—secondary air injection failure

2007 Toyota Tundra

powertrain — Secondary air injection (air pump) system failure; limp mode activation

2007 Toyota Tundra

engine — Secondary Air Injection System Failure (Air Pump & Valve)

2007 Toyota Tundra

electrical — P2440 code with secondary air injection system fault

2007 Toyota Tundra

brakes — ABS System Malfunction and Loss of Traction Control

2007 Toyota Sequoia

engine — Secondary Air Injection Pump/System Failure

2006 Buick LaCrosse

electrical — Secondary Air Injection (P2440) Fault Light & Remote Starter Disable

2006 Subaru Impreza

engine — Secondary Air Injection (SAI) system valve failure

2006 Toyota Sequoia

cruise control — Air injection pump failure

2005 Toyota 4Runner

engine — Secondary Air Injection System Failure (Relay/Pump/Valve)

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 →