147 electrical problem!!! help! - Alfa Romeo Forum
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Alfa 147

147 electrical problem!!! help!


Sorry for having an issue with my first post!

I have a 2001 146 1.6 and have not had any issues until today!

Basically, it started with the remote locking not functioning, but now I have ABS, EBD and ASR malfunction messages (amongst others) and the car won't start.

The battery is showing a green light and appears to be fine as the lights etc are working, but the car will only start when another car battery is used, and when i manage to do this, the engine management light comes on.

Is this simply a case that a new battery is needed, or do I have an electrical fault?

Thanks a million for any help

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Re: 147 electrical problem!!! help!

My name is Stefaan and my 2.5 year old 147 1.6 suffer a similar problem at the moment. It all happend two days ago after getting home of a 2500km vacation with the car. (without any probs)
The car was perfect and suddenly when I started the engine the ABS and braking light start to flash, the speedo dial went straight to 240km/h when I started to drive slowely... then it dropped to 0. Then the the light for engine management went on as well. the egnine and brakes behaved normal so I drove to the garage. They are still trying to solve it so I hope to give you some news soon. some ppl think it's the alternator/dynamo creating a higher voltage then requiered. Others suggest that the body computer is dieing. I'll let you know what it was.
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Re: 147 electrical problem!!! help!

The problem of my car was the ABS module failing.
I'm sure it's not the same problem your car is suffering.
Any news yet?

Stefaan (belgium)
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Re: 147 electrical problem!!! help!

Hi Guys,

I had the same problem. It all started when i finished work and went back to my car to find it didnt want to start, not even a click. I managed to get a jump start and then the lectrics went mad:

ABS failure,

The speedometer acting irratically. I drove home and then bought a new battery and since then its been fine. I had this problem a year ago and so far no problems.

The best thing to do is to change the battery, as it wont cost you much, start the engine and test the output of your alternator. with the car off the battery volt shoudl read on the multimeter 12v, but as soon as you turn the car on, the reading should be higher, i cant remember off teh top of my head what is the acceptable reading, but this can be found in the alfa maintenance cd manual which is widley available on the internet.

Hope this helps and good luck.

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Re: 147 electrical problem!!! help!

i would guess at a duff battery. ignore the green indicator, get it checked out. especially at this time of year, you dont want it failing and you being stuck at work or something!
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Re: 147 electrical problem!!! help!

Before doing anything check the battery without the car running. The voltage on the battery should read 12.5 minimum anything below that becomes suspect. On a daily used car I would expect 12.7 plus. Note if it is reading 12v it is dead. If the readings are ok get the battery load tested at a reputable battery/exhaust place. It is more than possible that the battery is on the way out and the symptoms match those that I had on the wifes 147. (If it does start with another battery in place you may want to check that the alternator is charging correctly, circa 14v plus with engine running.) Modern car engines are dependant on a steady electrical voltage, a old battery can cause loads of problems. Let us know how you get on.
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