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P2103 on TOYOTA COROLLA

Severity
Medium
NHTSA Reports
2
Most Affected
2006, 2009

What P2103 Means on Your TOYOTA COROLLA

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

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

Common Causes of P2103 on TOYOTA COROLLA

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2006
1
2009
1

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 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. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P2103 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026