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2004 Honda Civic 1.7L Engine Control Module | 37820-PLM-A76
The 2004 Honda Civic 1.7L Engine Control Module ECU ECM is a high-quality replacement for your vehicle’s original control module. Designed to enhance performance and efficiency, it’s compatible with various Civic sub models. Trust this genuine Honda part (37820-PLM-A76) for reliable engine management.
$324.00
Engine Computer (ECM, ECU, PCM) for a 2004 Honda Civic - 37820-PLM-A76
The 2004 Honda Civic 37820-PLM-A76 Engine Control Module ECU ECM is a crucial component that governs the performance of your Honda Civic. As the brain of your vehicle's engine, this control module ensures optimal fuel efficiency, smooth operation, and emission compliance. Crafted with precision and reliability, it replaces the original part numbers 37820-PLM-A76 and more. Trust this genuine Honda module to keep your Civic running at its best.
Fits Part Number(s): 37820-PLM-A76, p3780-plm-a72
Replaced By:
Common symptoms of a malfunctioning engine control module include:
- Check engine light stays on after reset.
- Engine shutting off for no reason.
- The apparent loss of spark
- The apparent loss of injection pulse or fuel pump.
- Intermittent starting problems.
- Loss of communication between the ECU and the scanning tool.
- Wait to start light stays on.
- Poor fuel efficiency.
Get your Civic back on the road quickly by purchasing a replacement OEM 37820-PLM-A76 Powertrain Control Module PCM/ECM from Auto Computer Performance.
We stock a large inventory of control modules for most makes and models from 1989 to 2021. We have over 17 years of experience repairing and selling engine control modules. Your PCM will arrive pre-programmed to your specific vehicle and is simple to install.
We offer PCM Repair Services!
For over 17 years we have been repairing and programming Engine Control Modules. Our repair facility is equipped with state-of-the-art diagnostic and OEM programming tools. Our friendly and knowledgeable technicians will quickly diagnose and repair any issues with your PCM.
All of our control modules undergo strict quality testing and are guaranteed to meet OEM specifications and pre-programmed to match your VIN for a true Plug-and-Drive installation.
NOTE: We will need your VIN number during the checkout process in order to program the unit.
FAQs
Q1. What is the 37820-PLM-A76 ECM for the 2004 Honda Civic?
The 37820-PLM-A76 is the Engine Control Module (ECM/PCM/ECU) designed for the 2004 Honda Civic 1.7L. It manages essential engine functions such as fuel injection, ignition timing, emissions control, and overall engine performance. Auto Computer Performance supplies genuine OEM refurbished ECMs that are professionally tested, updated with the latest software, and restored to OEM specifications for dependable performance.
Q2. Will part number 37820-PLM-A76 fit my 2004 Honda Civic?
Yes. This 37820-PLM-A76 ECM is a direct-fit replacement for the 2004 Honda Civic 1.7L. Before ordering, verify that the part number on your original module matches 37820-PLM-A76. If you're unsure, contact our U.S.-based support team at (954) 876-4662 with your VIN for compatibility verification.
Q3. Does the 37820-PLM-A76 ECM come programmed, or do I need dealer programming?
No dealer programming is typically required. We professionally program your 37820-PLM-A76 ECM before shipment using the information from your original module. Your replacement arrives loaded with the correct VIN-specific calibration and the latest software updates for a true plug-and-play installation.
Q4. Will the ECM arrive pre-programmed and ready to install?
Yes. Every ECM is professionally inspected, refurbished, programmed, and tested by our ASE-certified technicians before shipping from our Margate, Florida facility. Your module arrives ready for installation.
Q5. Do I need to send in my original ECM?
Yes. We require your original ECM because it contains important VIN-specific programming and immobilizer information. We use your original module to configure the replacement so it matches your 2004 Honda Civic 1.7L exactly. Detailed shipping instructions are provided after purchase.
Q6. Is there a core charge or core deposit?
No. We do not charge any core fee or refundable deposit. The price shown is the total price you'll pay.
Q7. What are the common symptoms of a failing ECM on a 2004 Honda Civic?
Common signs of a faulty 37820-PLM-A76 ECM include:
- Check Engine Light stays on
- No-start or hard-start condition
- Engine stalling
- Rough idle or engine misfires
- Poor fuel economy
- Communication failure with scan tools
- Random transmission or emissions fault codes
- Intermittent engine performance issues
Q8. Which diagnostic trouble codes (DTCs) indicate a failed ECM?
A failing ECM commonly triggers the following diagnostic codes:
- P0601 – Internal Control Module Memory Checksum Error
- P0602 – Control Module Programming Error
- P0603 – Internal Control Module Keep Alive Memory Error
- P0604 – Internal RAM Error
- P0605 – Internal ROM Error
- P0606 – ECM Processor Fault
- P0351–P0359 – Ignition Coil Circuit Faults that persist after component replacement
If these codes repeatedly return after repairs, the ECM is often the underlying cause.
Q9. Is the 37820-PLM-A76 an OEM or aftermarket ECM?
It is a genuine OEM Honda ECM, not an aftermarket replacement. Every unit is factory-original, professionally refurbished, fully tested, and restored to manufacturer specifications for proper fitment and reliability.
Q10. Can I install the 37820-PLM-A76 ECM myself?
Yes. Installation is straightforward for most DIY owners.
Basic installation steps include:
- Disconnect the battery.
- Remove the original ECM.
- Install the replacement module.
- Reconnect all connectors.
- Reconnect the battery.
Because the ECM is pre-programmed, most installations require no dealer visit.
Q11. Will I need an immobilizer or key relearn after installation?
Most customers do not require additional programming because we configure the ECM using your original module. However, some Honda vehicles may require a simple immobilizer synchronization or idle relearn procedure. Our lifetime technical support team can guide you if necessary.
Q12. What warranty and support are included?
Every ECM includes:
- OEM-quality testing
- Warranty coverage
- Lifetime U.S.-based technical support
- ASE-certified technicians available by phone
- Fast assistance whenever needed
Call (954) 876-4662 for current warranty information.
Q13. How quickly does the ECM ship?
Most in-stock ECMs ship the same or next business day from our Margate, Florida facility. Since all programming and testing are performed in-house, turnaround times remain among the fastest in the industry.
Q14. How do I verify my part number is 37820-PLM-A76?
Locate the label on your original ECM and confirm it reads:
37820-PLM-A76
Matching the exact OEM part number is the best way to ensure compatibility. If you're uncertain, simply send us a photo of your module or your VIN, and our technicians will verify it before you order.
Q15. What if replacing the ECM doesn't solve my problem?
If the replacement ECM does not resolve your issue, contact our technical support team before returning the unit. Many drivability problems are caused by damaged wiring, sensors, ignition components, or other vehicle systems. We'll help diagnose the issue and assist you under our published warranty and return policy.
Additional information
| Year | |
|---|---|
| Make | |
| Model | |
| Engine | |
| Manufacturers Part Number: | |
| Interchange Part Numbers: | 37820-PLM-A72, 37820-PLM-A73, 37820-PLM-A74, 37820-PLM-A75, 37820PLMA75, 37820PLMA76 |
| Transmission |
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Why Purchase Your ECM From Automotive Computer Performance?
- Your module will function like new; Unlike some of our competitors, we perform all of the testing and repair services ourselves. This means your module will arrive fully functional, pre-programmed and ready for installation
- We stand by our products - If it is going to fail, it'll fail within the first 6 months. That's why we got you covered with a 6-month warranty and lifetime phone support when you need us. Warranty is prorated after the first 3 weeks.
- Guaranteed OEM products; Refurbished and Tested to Meet Manufacturers Specifications
- Latest Software Updates
- Easy Installation: Get your vehicle back on the road quickly with a straightforward installation process. Module is pre programmed, however customers must perform a ABS initialization after install.
- ASE Certified In-House Automotive Electrical Technicians
- Readily Available Support Agents.
Unlike some of our competitors, we are a full-service automotive computer repair facility. That means we can control our quality standards and committed to providing a great customer experience and a module you can rely on. Each and every module that we sell has been professionally inspected, diagnosed, repaired in-house by one of our certified automotive and electrical engineers. This provides you with the peace of mind of unparalleled quality repairs and dedicated support for the life of your product.
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