P2103 — Throttle Actuator A Control Motor Circuit High

What Does P2103 Mean?

P2103 is a diagnostic trouble code indicating: Throttle Actuator A Control Motor Circuit High. This code relates to the powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

Symptoms of P2103

⚠️ Check engine light illuminated

P2103 Reports by Year

2010

1

2017

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"INTERMITTENTLY MY 2006 TOYOTA MATRIX XR SUDDENLY SLOWS DOWN TO ABOUT 20 MILES PER HOUR AND WOULD NOT RESPOND TO PRESSING GAS PEDAL. WHEN THIS HAPPENS I WILL HAVE TO PULL UP TO THE SIDE AND TURN THE ENGINE OFF FOR COUPLE OF MINUTES AND THEN START. THEN IT WOULD BE FINE. IT HAS HAPPENED ON THE HIGH"
— Toyota Corolla owner, 05/01/2010

"TL* THE CONTACT OWNS A 2009 TOYOTA COROLLA. WHILE DRIVING 55 MPH, THE VEHICLE LOST POWER, STALLED, AND THE CHECK ENGINE INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED WITH ERROR CODE P2103. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNO"
— Toyota Corolla owner, 12/02/2017

Source: NHTSA Complaints Database

Most Reported Vehicles for P2103

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	TOYOTA COROLLA

P2103 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

TOYOTA COROLLA

2 NHTSA reports · Peak: 2006, 2009

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P2103: Throttle Actuator A Control Motor Circuit High