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Old 26-06-2008   #1
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earthing points on MK2 Punto - PLEASE!

Really need your help, guys

2002 Punto 1.2 8v

Weird problems - rear wiper operating with the hazard flashers, engine starts, but then cuts out at same time as dashboard 'lights on' light comes on.

Have checked all connections on back light clusters

It has to be earthing, hasn't it.

Small rectangular box below, and in front of engine compartment fusebox - is that an earthing point. Also at -ve terminal on battery.

Anywhere else I'm missing?

If I fail, should it go to Fiat dealer or independent auto electrician?
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Old 26-06-2008   #2
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Re: earthing points on MK2 Punto - PLEASE!

don't the rear lights earth somewhere in the boot?
Thanks kennethsross thanked for this post
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Old 26-06-2008   #3
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Re: earthing points on MK2 Punto - PLEASE!

You're absolutely right. Having checked all the earthing at the front, and having confirmed that none of the earth wires in the boot were actually grounded to chassis earth, I decided to create a new chassis earthing point in the boot.

Soldered a loop on the end of a peice of earth wire, secured it under the rear seat back securing pin bolt, and then set about finding a concealed point to connect it to the black/white earth wire coming from the lights.

As I folded back the carpet on the left side of the boot, I found.......

Multi-wire earthing connector sitting over the metal fixing stud, but no securing nut. Fixing stud a shiny shade of Teseo blue, and had clearly never had a nut on it since the Punto was fixed following a rear-end shunt in November 2006.

Quite how it has been making an earth connection up until now escapes me, but with the paint scraped off, and the correct nut tightened up, I think we have a FIX.
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Old 26-06-2008   #4
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Re: earthing points on MK2 Punto - PLEASE!

well i'm glad to hear it! I had a stupid earth thing on my car, something under that dash that should have been welded wasn't causing power steering failure and more, luckily was done under warrenty and wasn't anythign too serious but just goes to show what a bad earth can do!
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