What does P2442 mean on a TOYOTA TACOMA?

P2442 indicates: AIR System Switching Valve Stuck Open Bank 2. This is a powertrain code. 84 TOYOTA TACOMA owners have reported this to NHTSA.

What are the most common causes of P2442 on TOYOTA TACOMA?

Based on 84 NHTSA reports, the most commonly cited components are: Engine, Fuel/Propulsion System, Unknown Or Other. These percentages are based on the component field in owner complaints.

Is P2442 serious on my TOYOTA TACOMA?

Of 84 NHTSA reports for this code on TOYOTA TACOMA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my TOYOTA TACOMA shows P2442?

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

P2442 on TOYOTA TACOMA — AIR System Switching Valve Stuck Open Bank 2

What P2442 Means on Your TOYOTA TACOMA

Real TOYOTA TACOMA Owner Reports (Source: NHTSA Complaints Database)

"My 2012 tacoma warning light 1) engine and 2 trac off warning light came on and lost power going 65 mph on freeway and would not go over 25 mph (dangerous!). obd-ii scanner displayed error code check p2442 indicating faulty air injection pumps and/or air switching valves."

— 2012 TOYOTA TACOMA owner • ENGINE • Filed 05/07/2020

"On my 2012 tacoma the code p2440 and p2442 which represent a stuck open valve in the secondary air injection system. upon my research into this issue on forums i have learned this is a common problem with the toyota systems particularly the 2012 tacoma."

— 2012 TOYOTA TACOMA owner • ENGINE • Filed 04/10/2020

"Failure of the secondary air injection system p2440 and p2442, while the vehicle was moving onto a city street from a parking lot. when accelerating immediately there was a decrease in power and the check engine light along with the "trac off" light illuminating simultaneously."

— 2012 TOYOTA TACOMA owner • ENGINE • Filed 12/30/2019

"About 2 weeks ago my truck was hesitating and my check engine/off trac light was on. the car would not go above 40mph on city streets or highway. i went to a toyota dealer in puerto rico, they said the codes were p0052, p0456, p2140, p2442 secondary air injection system is bad and would cost $2,458."

— 2012 TOYOTA TACOMA owner • FUEL/PROPULSION SYSTEM • Filed 07/13/2019

"While on a road trip i had my check engine light come on while on the highway due to defective secondary injection valves being stuck closed/open. the codes i had for this issue is p2440 and p2442."

— 2012 TOYOTA TACOMA owner • ENGINE • Filed 04/25/2019

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P2442 on TOYOTA TACOMA

51.2%

11.9%

9.5%

6%

4.8%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2012

83

2015

1

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

What P2442 Means on Your TOYOTA TACOMA

Real TOYOTA TACOMA Owner Reports (Source: NHTSA Complaints Database)

Common Causes of P2442 on TOYOTA TACOMA

Complaint Trend by Year

What To Do Next

P2442 on Other Vehicles