Honda Accord ECU 13259801 | Engine Control Module 3Y540004ZC / Y540004ZC OEM (2003–2004)
Honda Accord Engine Control Module 13259801 – OEM ECU 3Y540004ZC
The 13259801 Engine Control Module (ECU), also referenced as 3Y540004ZC / Y540004ZC, is a genuine OEM unit designed for the Honda Accord 2003–2004 models.
This ECU acts as the central control system of the engine, managing fuel injection, ignition timing, emissions, and overall engine performance. Built to Honda’s factory specifications, it ensures smooth driving, improved fuel efficiency, and reliable operation.
Replacing a faulty ECU with a genuine OEM unit restores engine functionality and prevents further performance issues.
Product Specifications
- Part Number: 13259801
- Alternate Numbers: 3Y540004ZC / Y540004ZC / Y5403Y540004ZC
- Vehicle: Honda Accord
- Model Years: 2003–2004
- Engine Type: 2.0L / 2.4L Petrol (varies by market)
- Transmission: Automatic / Manual
- Condition: Genuine OEM – Fully Tested Used Unit
- Warranty: 30 Days
- Shipping: Worldwide with tracking
Compatibility Table – Honda Accord ECU 13259801
| Make | Model | Engine | Transmission | Year |
|---|---|---|---|---|
| Honda | Accord | 2.0L Petrol | Manual / Automatic | 2003 |
| Honda | Accord | 2.4L Petrol | Manual / Automatic | 2004 |
Compatibility may vary depending on VIN, region, and engine variant. Always match part number 13259801 / 3Y540004ZC before purchase.
What Does the ECU Control?
The Engine Control Unit manages:
- Fuel injection system
- Ignition timing
- Air-fuel mixture ratio
- Idle speed control
- Emission systems
- Sensor communication (O2, MAP, TPS, etc.)
A properly functioning ECU ensures efficient engine performance and smooth operation.
Common Symptoms of a Faulty ECU
- Check Engine Light ON
- Engine starting problems
- Rough idle or stalling
- Poor fuel economy
- Loss of power
- Engine misfire
- Diagnostic communication errors
Replacing the ECU with a genuine OEM unit typically resolves these issues.
Why Buy from Automan Spare Parts?
Automan Spare Parts is a trusted supplier of genuine OEM automotive electronic components worldwide.
What You Get:
- 100% Genuine OEM Honda ECUs
- Fully Tested Units
- Competitive Wholesale Pricing
- Fast International Shipping
- Tracking Provided
- 30-Day Warranty
- Expert Compatibility Support
We specialize in ECUs, TCMs, BCMs, and hybrid modules for Japanese vehicles.
Installation & Programming Notes
This ECU may require:
- Immobilizer synchronization
- Key programming
- ECU reset or coding
- Diagnostic tool configuration
Professional installation is recommended for proper setup.
Order Honda Accord ECU 13259801 Today
Restore your vehicle’s performance with a Genuine OEM Honda Accord Engine Control Module 13259801 / 3Y540004ZC from Automan Spare Parts.
Contact us with your VIN or ECU image to confirm compatibility before ordering.
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