2014-2015 Honda Civic 1.8L AT LX SE ECM ECU Engine Computer OEM 37820-R1J-A55 133K Miles

🔧 Part #: 590-62336
📦 Stock #: MM0970

Genuine OEM Engine Control Module (ECM/ECU) removed from a 2014–2015 Honda Civic with 133,138 original miles. This factory engine computer has been professionally inspected and tested prior to removal to ensure proper functionality. It is an original Honda OEM component and is ready for installation.

Designed for 2014–2015 Honda Civic LX and SE models equipped with the 1.8L gasoline engine and automatic transmission (AT). The ECM is mounted behind the battery tray.

Vehicle Fitment

2014 Honda Civic

• LX Coupe – 1.8L, AT, Federal Emissions
• LX Sedan – 1.8L, AT, Federal Emissions
• LX – 1.8L, AT, Canada Emissions

2015 Honda Civic

• LX Coupe – 1.8L, AT, Federal Emissions
• LX Sedan – 1.8L, AT, Federal Emissions
• SE Sedan – 1.8L, AT, Federal Emissions
• LX Coupe – 1.8L, AT, Canada Emissions
• LX Sedan – 1.8L, AT, Canada Emissions

Module Location: Behind Battery Tray

OEM Part Numbers

• 37820-R1J-A51 (Early)
• 37820-R1J-A55 (Late)

Compatible / Interchange ID Numbers

• 37820R1JA51
• 37820R1JA52
• 37820R1JA53
• 37820R1JA54
• 37820R1JA55

Features

• Genuine Honda OEM Engine Control Module
• Fits 2014–2015 Honda Civic 1.8L Automatic
• Compatible with Federal and Canada emissions applications
• Fits LX and SE trim levels as listed
• Removed from a vehicle with 133,138 original miles
• Factory tested and inspected before removal
• Clean and ready for installation
• Direct OEM replacement when part numbers and calibration IDs match

Important Information

• Please verify that your original part number matches one of the compatible numbers listed above before purchasing.
• Fits only the vehicle applications listed.
• This module may require programming, VIN registration, immobilizer synchronization, or ECU initialization before installation.
• Professional installation is strongly recommended.

Package Includes

• 1 × Genuine OEM Engine Control Module (ECM/ECU) – Part #37820-R1J-A55

Need help confirming compatibility? Send us your VIN and original part number, and we'll be happy to verify fitment before you purchase.