Ford Visteon EECIV SME-505 Engine ECU Repairs

Type: Visteon Engine Management
Fits: Ford
Engines:
Year:
Fuel: Petrol
Ref: ECUT32175

Note: This ECU may also fit other models.

The name in this page’s heading, SME-505, is on record printed on the same label as one of the Ford numbers we list here: 98AB-12A650-ASA. For the other three, the Ford number itself is what tells you whether a unit belongs on this page.

Whichever of the four you have, we repair it at component level, on the engine ECU you send us. The sections below show how to tell the four apart before you post it.

Where SME-505 appears on the record

Six independent sources show SME-505 on the same label as 98AB-12A650-ASA, which puts that number on record as an SME-505 unit. The record is not strong enough to say the same of the other three numbers here.

SLUG is the word printed beside 98AB-12A650-ASA, a pairing nine sources agree on, and our table also carries SLUG after the number. If your label shows SME-505 as well as the number and SLUG, all three point to the same row.

One 98AB-12A650 base, four three-letter endings

Every number on this page begins 98AB-12A650. Because that opening is shared, it brings you to this page but cannot choose a row for you.

The choice rests on the three letters at the end: ASA, AWA, AWB or BDB. AWA and AWB differ only in their final letter, which is easy to misread on a faded label, so check that character twice.

Our table prints each number without hyphens and follows it with a four-letter word, so 98AB-12A650-BDB appears as 98AB12A650BDB DARK. DARK is on record beside that number from eight sources, which makes it worth copying with the number rather than leaving it off.

What the Ford Escort does and does not settle

All four numbers are on record from the Ford Escort. The car is consistent with this page, but it cannot tell one row from another.

98AB-12A650-ASA is also on record from the Escort 1.8, a useful cross-check if that is the engine in your car. Whatever the engine, the three-letter ending on the label is what settles the row.

How the repair is carried out

The work is done by our own engineers, in our own UK workshop and on our own equipment, and nothing is sent elsewhere.

Each unit is logged on arrival, inspected visually and tested electrically, then taken through diagnostics aimed at the fault you described. We contact you with the findings and an estimate, and chargeable work begins only once you have authorised it.

Faults are repaired at component level under a microscope, with temperature-controlled rework equipment, and no unit leaves until it has passed final testing. Our 24-month warranty applies to the repair we carry out.

Sending your unit to us by post

We accept engine ECUs by post from anywhere in the UK. Before packing yours, set out the label and the fault on our Repair Form: the full Ford number with its three-letter ending, the word printed after it, and SME-505 if the label carries that name.

Tell us which car the unit came from and what the car was doing when you first suspected the engine ECU. That account is where our diagnosis starts.

If your number is not one of the four here, the broader Ford EEC-IV page lists further numbers. For other Ford units, see Ford engine ECU repairs that reach well past the Escort, and if the unit came from a different manufacturer, go to our engine ECU repairs page, the first stop for every other make.

The four numbers are listed below exactly as our table prints them, each followed by its word.

Common part numbers associated with this type of unit