How to choose ECU AU71-12A650-AA for your Ford
This is a Delphi DCM3.5 engine control unit with Ford number AU71-12A650-AA and number 28272293, used in Ford vehicles with the 2.0 TDCi engine. The unit is tested before dispatch.
Vehicle compatibility
ECU AU71-12A650-AA 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 AU71-12A650-AA and number 28272293 with your ECU. If in doubt, send us a photo of the label before buying.
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.
Numbers on the label
- Ford number: AU71-12A650-AA / AU7112A650AA
- Delphi number: 28272293
- ECU type: Delphi DCM3.5
What happens after purchase
Once you have placed your order, send us the car’s VIN. We prepare the ECU with data from the Ford server and load the latest software – this service costs nothing extra.
The ECU is not plug & play. After fitting, the keys and VIN must be assigned in the PATS procedure using FORScan or Ford IDS. The warranty is 6 months.
Looking for a different number? See also: AU71-12A650-AC (28367357), AG91-12A650-ABD (28264930), AG91-12A650-ABF (28270053), AG91-12A650-ABG (28278426). The full list is in the Ford DCM3.5 ECU collection.
Our guide Ford DCM3.5 ECU replacement and VIN programming explains the replacement and programming, and the Delphi page tells you more about the manufacturer.
See also the other items in the Ford Engine Control Units (ECUs) category.
Questions and answers – ECU AU71-12A650-AA
Does ECU AU71-12A650-AA fit my Ford?
Check the label of your ECU: Ford number AU71-12A650-AA and number 28272293. The same number is used in several Ford models, so the number decides, not the model and year.
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Is ECU AU71-12A650-AA 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 AU71-12A650-AA?
The warranty is 6 months. We test every unit before dispatch.
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Why give the VIN after ordering?
The VIN lets us prepare the ECU for your car with data from the Ford server and the latest software. The service is included in the price.
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