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Discussion Starter #1
Just go a 'Motion Control System Failure' warning on the car.

A bit of research says that one cause is a dying battery - which should be checked BEFORE taking it to a dealer - who may fail to diagnose it and think it is something like a faulty ECU.

So how can I check the general health of the battery?

The car is running fine.

I've have the glow plug warning light for a while now - with no problems.

I recently changed the MAP sensor - has been running fine.

Should I reset the ECU?

I need to drive to Gatwick this friday and leave it there for a week.....so don't want to mess it up before then.

cheers all :)
 

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Many places will perform a free battery check for you assuming you don't have a multimeter...
 

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Voltage wise, should be 12.5v engine off & 14.7v (ish) with engine running
 

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the MCSF could be many things it's probably best to go to an Alfa Specialist ( not a dealer ) to get a diagnosis Dealers will charge through the nose i'm sure there's a decent independent not far from you,
 

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For the cost of a diagnostic alone you could buy a cable and FIATECUScan and (provided you have a laptop) read the codes yourself. Every time thereafter you are saving money.....

(If the car is running fine then no harm in waiting for delivery of the ELM 327 interface)
 

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Discussion Starter #7
What happens if I reset the ECU?

Is there a link on how to do this on a 2004 facelift 1.9 JTD ( I've done it on earlier models but want to check the system is the same ).

cheers
 
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Had the same error message recently and was the crank sensor that needed replacing so could be an array of things
 

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'Resetting the ECU' as defined in the threads in here will not clear the part of the ECU memory that holds the fault codes. That can only be done by sending the required commands to the controller, and that can only be done using an OBDII compatible device.
 

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Discussion Starter #12
Well - it cleared itself :D Drove off this morning and no error warning.

I still decided to do a ECU reset...which all went fine.

Took her to Kall Kwik and they tested the battery FOC all fine & charging correctly. :)
 

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Either take it to a good independent or as r11co says get a free copy of FiatECUScan and either a 327ELM lead or a KKL lead and read the fault code.
The FiatECUScan site is very confusing with what leads are needed, there has got to be an easier way to identify what you need - just buy a single KKL or 327 and, for connecting to the engine ECU, you do not need any adaptors nor do you need to mess about with modifying pin connections.
You may find that the software fails to connect. If the car has never been on a computer reader the connections can get a bit dirty and the solution is to plug the socket in and take it out a few times, that is usually enough to clean the pins and get a connection between the car and computer.
The software will read the fault code and probably let you reset it and turn the light off. Though if there is a permanent fault on the car the code and light will quickly re-appear. Once you know what the fault is the first thing to try is just disconnecting and reconnecting at the sensors plug connection. Many "faults" are just the connectors getting a little corrosion and going high resistance. Unplugging the connection and putting it back can sometimes fix the fault and save quite a lot of money.

Finally, a voltmeter is a very basic test of battery condition. To test it properly you must put the battery under load and see how well it holds it voltage and for how long. To do that properly you need a load or "drop" tester for that. Take the car to a battery supplier and they will test the battery for you.
 

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+1 to r11co's comment or the next time you go to a dealer for a service they may try to stitch you for expensive parts. Also it may be worth knowing what the fault is so that, should the light return, you know whether or not it is a repeat of the previous failure.

Leads are about £10 from fleabay and the software is free - all you need is a laptop.
 

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no pc only

where in London are you ? If near to Canary Wharf I could bring my laptop into work and see if we can sort it
 

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Discussion Starter #18
Hi CJO - Thanks for the offer - I may take you up on that when I return in the new year.
I'm in Herne Hill ( SE24 ). Would be interesting to see what code gets thrown up :):eek:
 
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