The "2012 Only" Rule

The 2012 Civic (9th Gen) was a "one-year wonder" for many parts because Honda did a refresh in 2013.

• Recommendation:  "2012 Only" . The 2013-2015 computers (usually 37820-R1A-A6...) are often different enough to cause issues if swapped

Title:

2012 Honda Civic 1.8L Engine Computer ECU PCM 37820-R1A-A56 Automatic - OEM

Item Specifics:

• Brand: Honda / Keihin (OEM)

• Model Year: 2012

• Model: Civic (DX, LX, EX, HF)

• Engine: 1.8L 4-Cylinder (R18Z1)

• Transmission: Automatic

• Part Name: Powertrain Control Module (PCM) / Engine Control Unit (ECU)

• Manufacturer Part Number (MPN): 37820-R1A-A56

• Interchange Part Numbers: 37820-R1A-A51 through A56 (Backwards compatible)

Description:

For sale is a genuine OEM Engine Control Module (PCM) removed from a 2012 Honda Civic 1.8L. This unit controls the engine and automatic transmission functions.

Compatibility:

• Vehicle: 2012 Honda Civic (Sedan & Coupe)

• Engine: 1.8L Non-Hybrid

• Transmission: Automatic Only (Will NOT fit Manual transmission models)

• Match Required: Please match the part number 37820-R1A-A56 (or previous revisions like A51-A55) to your existing unit.

Condition Notes:

• Used OEM part in good working condition.

• Pins are straight and clean.

• Case is free of corrosion.

Important Installation Note (Buyer Warning):

• Immobilizer Programming Required: This unit is NOT plug-and-play. The vehicle will not start until this computer is programmed to match your key's immobilizer chip and the VIN. This procedure must be done by a locksmith or dealership.

Shipping & Returns:

• Ships fast from Columbus, OH.

• (Add your standard MaddbuysStore return policy here).

The "2012 Only" Rule

The 2012 Civic (9th Gen) was a "one-year wonder" for many parts because Honda did a refresh in 2013.

• Recommendation: Be very specific about "2012 Only" in your title and compatibility. The 2013-2015 computers (usually 37820-R1A-A6...) are often different enough to cause issues if swapped.