A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
Engine control unit Ford Mondeo 2.0 2S7A12A650AGB
Vendors's code: 2S7A12A650AGB
Product code: 2S7A12A650AGB
Barcode:
Code 39:
ISBN:
£138.75
Price
£138.75
£170.66
Price
£170.66
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Engine control unit Ford Mondeo 2.0 2S7A12A650AGB
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Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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What does number 2S7A12A650AGB on an engine control unit mean?
Used Ford engine control unit with number 2S7A12A650AGB. Send us the numbers from the label on your control unit.
Ford 2.0 engine control unit 2S7A12A650AGB: matching by part numbers
If the engine will not start or the engine warning light is on, one possible cause is the control unit. Control unit 2S7A12A650AGB for Ford Mondeo is a used original part, inspected before sale. The listing states that this control unit is for: Ford Mondeo. Engine given in the listing: 2.0. The listing also gives the markings 3UDA. They help tell the control unit versions apart, but the full part number is what decides compatibility.
Numbers to compare
Below are the numbers as they appear in the listing, together with the single-string form used in catalogues:
- 2S7A12A650AGB, car manufacturer's original number.
The ending of a number often indicates a different version of the control unit, so compare every character. If you are in doubt, write to us before buying.
Control unit variant
This listing is for a control unit in the following variant(s): Locked / Unlocked. We describe the differences between the variants (locked, unlocked, Virgin, IMMO OFF, Plug and Play, clone, full set) on the ECU preparation options page. Before buying, send us the numbers from the label and we will confirm which variant is available for that number.
Faults that call for checking the control unit
- the engine warning light comes on and does not go out,
- the car loses power or goes into limp mode,
- the engine jerks when accelerating,
- starting is blocked by the immobiliser after the electronics have been replaced or repaired.
Only diagnostics can confirm an engine control unit failure, so read the fault codes before buying. After replacement, the control unit may need to be programmed or adapted to the car.
Questions and answers
| What do the markings 3UDA in the listing mean? |
|---|
| They are markings of the version or type of the control unit. They help tell the units apart, but the full part number is what decides compatibility. |
| Does this control unit fit the 2.0 engine? |
| According to the listing it does, but confirm this with the numbers from the original control unit, because a single model comes with different versions. |
| How should I prepare for fitting the control unit? |
| Disconnect the battery, check the connector and the wiring, and after fitting read and clear the fault codes with a tester. Configuration is best carried out in a garage with suitable equipment. |
| Is this a new part? |
| No. We sell used original control units, each one inspected before sale. You will find the warranty period in the product features table. |
If the numbers on your control unit differ from those given, write to us. We will check whether the right version is available in our range.
