P2103 on TOYOTA COROLLA — Throttle Actuator A Control Motor Circuit High

Q: "What does P2103 mean on a TOYOTA COROLLA?"

"P2103 indicates: Throttle Actuator A Control Motor Circuit High. This is a powertrain code. 2 TOYOTA COROLLA owners have reported this to NHTSA."

Q: "What are the most common causes of P2103 on TOYOTA COROLLA?"

"Based on 2 NHTSA reports, the most commonly cited components are: Engine And Engine Cooling, Engine. These percentages are based on the component field in owner complaints."

Q: "Is P2103 serious on my TOYOTA COROLLA?"

"Of 2 NHTSA reports for this code on TOYOTA COROLLA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my TOYOTA COROLLA shows P2103?"

"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."

What P2103 Means on Your TOYOTA COROLLA

P2103 is a diagnostic trouble code indicating: Throttle Actuator A Control Motor Circuit High. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 TOYOTA COROLLA owners have reported this issue to NHTSA across model years 2006-2009. Most reports come from the 2006, 2009 model years. The most commonly reported component is Engine And Engine Cooling (50.0% of reports).

Real TOYOTA COROLLA Owner Reports

Source: NHTSA Complaints Database

"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."

— 2006 TOYOTA COROLLA owner · ENGINE AND ENGINE COOLING · Filed 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."

— 2009 TOYOTA COROLLA owner · ENGINE · Filed 12/02/2017

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'06

1

'09

Common Causes on TOYOTA COROLLA

Based on NHTSA complaint component analysis for this vehicle.

ENGINE and ENGINE COOLING 50%

ENGINE 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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.

Frequently Asked Questions

What does P2103 mean on a TOYOTA COROLLA? ▾

P2103 indicates: Throttle Actuator A Control Motor Circuit High. This is a powertrain code. 2 TOYOTA COROLLA owners have reported this to NHTSA.

What are the most common causes of P2103 on TOYOTA COROLLA? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Engine And Engine Cooling, Engine. These percentages are based on the component field in owner complaints.

Is P2103 serious on my TOYOTA COROLLA? ▾

Of 2 NHTSA reports for this code on TOYOTA COROLLA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my TOYOTA COROLLA shows P2103? ▾

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.

P2103 on Other Vehicles

→ All codes reported on TOYOTA COROLLA