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P0606 on TOYOTA COROLLA

Severity
Medium
NHTSA Reports
2
Most Affected
2005, 2011

What P0606 Means on Your TOYOTA COROLLA

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

"2005 toyota corolla. 3/1/2010-engine cuts out/stalls while driving and check engine light. retrieved codes p0606 and p0456. brought to local service and was diagnosed as ecm failure. service rep states that it has to go to toyota because ecm is on technical service bulletin extended warranty."

— 2005 TOYOTA COROLLA owner • ELECTRICAL SYSTEM • Filed 03/01/2010

"Vehicle fails to start. found codes p0606 (ecm/pcm processor error) and p0303 (random misfire) on obd 2 computer. vehicle towed to toyota dealership where they cleaned spark plugs and cylinders due to engine flooding."

— 2011 TOYOTA COROLLA owner • VEHICLE SPEED CONTROL,ENGINE • Filed 11/04/2013

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

Common Causes of P0606 on TOYOTA COROLLA

50%
50%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2005
1
2011
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.

P0606 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