Description
3964402 D12 ECM Repair for Trucks, Buses and Equipment
3964402 D12 ECM Repair is the bench service we offer for Volvo control module 3964402, fitted to the Volvo D12 engine. You ship the module to us and we return the same unit repaired. First, we diagnose it. Then we replace the failed components and recondition the board. Finally, we run a full test before the module goes back to you.
What the Volvo ECM Does
Volvo engines carry an ECM, or electronic control module, manufactured by Volvo. It manages and controls various engine functions, including fuel injection timing, air intake and emissions control.
Moreover, it reads the sensors fitted throughout the engine and adjusts the operating parameters accordingly.
Because so much depends on that module, a fault in it can look like a mechanical problem. Therefore, it is worth diagnosing the unit before replacing anything else.
Applications Covered by This 3964402 D12 ECM Repair
- Part number: 3964402.
- Engine: Volvo D12.
- Applications: heavy-duty trucks, buses and construction equipment.
- Service: repair and return of your own ECM, with the original programming kept.
Common Problems This Repair Service Solves
- Blowing fuses.
- No communication with the module.
- Engine shutting down.
- Fault codes stored in the unit.
- Intermittent faults.
- Oil intrusion.
- Water damage.
- Injector driver faults.
Diagnosis and Cost if the Unit Is Not Repairable
We first diagnose the unit. However, if it is not repairable, or if no problem is found, the cost is $200 plus shipping. In that case we process a partial refund with the difference.
Warranty on the 3964402 D12 ECM Repair
Every service carries a one-year warranty. In addition, our technicians recondition the whole board, so the module leaves the bench ready for years of service.
What You Get Back
- Your own original Volvo module, not an exchange unit.
- The original programming kept intact, so no extra coding is needed.
- A unit our technicians have tested against the fault you reported.
- A one-year warranty on the work.
How the Repair Process Works
All you need to do is ship your unit to us. We then diagnose the faults and ship the fixed unit back to you free of shipping cost.
Frequently Asked Questions
Do I need to reprogram the ECM after the 3964402 D12 ECM Repair?
No. We repair your own module, so it keeps its original programming and goes straight back on the same engine.
Is this a new module or an exchange unit?
Neither. This is a repair service on the ECM that you ship to us.
What happens if the module cannot be repaired?
The cost is $200 plus shipping, and we then process a partial refund with the difference.
Is there a warranty on the 3964402 D12 ECM Repair?
Yes. Every repair includes a one-year warranty.
Why Trust ECM Repair USA
Our engineering team has over 15 years of experience, more than 10K repaired ECMs and the latest simulation technology. Therefore, feel free to contact us if you wish to discuss the faults you are experiencing before sending in your parts. ECM Engineering USA / ECM Repair USA Facebook | Linkedin | Twitter
