Why does my ABS ECU keep failing? - Alfa Romeo Forum
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Hmmm Why does my ABS ECU keep failing?

I know this is a technical issue but seeing as most Alfas use the same ABS system I didn't want to hide it away in the GTV/Spider section...

I've now gone through two ABS units in 18 months. The original one and the replacement I had fitted.

Both times it failed with the following error code
15 Rear left load solenoid valve.

MutliEcuScan also gives the following additional information:
Anomaly of the charge solenoid valve circuit of the indicated wheel
Possible causes:
- inside wiring interrupted or in short circuit
- absent of insufficient positive power supply (from the hydraulic unit relay)
- ECU connection wiring

I tried to have my unit repaired by an ECU repair specialist but they say it can't be fixed.

I'm in the process of sourcing another part but I suspect it will also fail with the same fault. I need to find out what is cause of the problem otherwise there simply won't be enough second hand ABS units to keep me on the road!
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Worth changing the rear left sensor surely?
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Unfortunately certain ABS modules are prone to failure (as are certain airbag ECUs) while other ABS modules seem to go on and on forever. I've got about a hundred varieties in stock on the shelf at work and probably 3/4s of our ABS module sales are from only around 6 or 7 specific part numbers. I think your second failure is just down to bad luck most probably.
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Hi Pud, do you have a definitive list of the worst offending part numbers?

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