Delphi DCM3.5 ECU BG91-12A650-SF – what to know
Unit BG91-12A650-SF (Delphi 28306980) controls the 2.0 TDCi engine in Ford cars. We test every unit before sending it to the customer.
Typical symptoms of a faulty DCM3.5 ECU
A damaged ECU can stop the engine from starting because the injectors receive no signal. The tester then cannot connect to the unit, and a measurement may show no power at the ECU despite good fuses. The failure can follow water ingress or a short circuit in the wiring.
The same symptoms can, however, come from a fault in the harness, power supply or sensors, so run a diagnosis before you buy an ECU.
Fitting step by step
- After purchase, you send us the VIN.
- We prepare the ECU with data from the Ford server and the latest software – included in the price.
- You fit the ECU in the car.
- You carry out PATS programming (keys and VIN) with FORScan or Ford IDS, or have a workshop do it.
Warranty on the ECU: 6 months.
Numbers to compare with your label
The housing of the original ECU carries a sticker with its numbers. On this unit they are:
- Ford number: BG91-12A650-SF / BG9112A650SF
- Delphi number: 28306980
- ECU type: Delphi DCM3.5
Vehicle compatibility
ECU BG91-12A650-SF may have been fitted to different Ford models, so compatibility is decided by the numbers on the label, not by the model and year of the car. Compare Ford number BG91-12A650-SF and number 28306980 with your ECU. If in doubt, send us a photo of the label before buying.
We describe the replacement and programming in our guide Ford DCM3.5 ECU replacement and VIN programming. Other numbers are in the Ford DCM3.5 ECU collection, and more about the manufacturer on the Delphi page.
Other DCM3.5 ECUs in our range: BG91-12A650-SJ (28334098), BG91-12A650-FFD (28362908), BG91-12A650-FFF (28459226), BG91-12A650-FGB (28354071).
See also the other items in the Ford Engine Control Units (ECUs) category.
FAQ: Ford ECU BG91-12A650-SF (28306980)
How do I know that BG91-12A650-SF will fit?
Check the sticker on your ECU. If it shows BG91-12A650-SF and 28306980, the numbers match. The car model and year alone are not enough, as this number may have been used in several Fords. You can also send us a photo of the label.
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Is ECU BG91-12A650-SF plug & play?
No. After fitting, PATS programming is required – the keys and VIN are assigned with FORScan or Ford IDS.
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What is the warranty on ECU BG91-12A650-SF?
The warranty is 6 months. We test every unit before dispatch.
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What do I need to send after buying ECU BG91-12A650-SF?
Just your Ford’s VIN. Based on it, we prepare the ECU with data from the Ford server and the latest software.
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