P2442 — 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 P2442 across 12 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 P2442 12 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 Tacoma

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

2012 Toyota Tundra

powertrain — Secondary Air Injection System Water Intrusion / Relay & Valve Failure

2012 Toyota Tacoma

electrical — Secondary Air Injection System Failure

2011 Toyota Tundra

engine — Secondary Air Injection Pump / Valve Failure

2008 Toyota Tundra

cruise control — Unintended acceleration—stuck open or unresponsive brakes

2008 Toyota Tundra

powertrain — Secondary air injection system failure

2008 Toyota Tundra

engine — Secondary air injection pump and switch valve failure

2007 Toyota Tundra

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

2007 Toyota Tundra

brakes — ABS System Malfunction and Loss of Traction Control

2006 Subaru Impreza

engine — Secondary Air Injection (SAI) system valve failure

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 →