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Old 1 Week Ago   #1
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Testing body control unit

Hi all.
Can someone offer some advice on testing the body control unit for my punto.
I've (what seems a common problem) with the indicator only working with the highbeams on. From some previous threads and a little testing of earths, switches etc it seems the body control unit is the culprit. I found one company that says it can repair and another company that would clone to a second hand unit, both cost around 200.

I would like to do a final test to check the power from the bcu to the column switch to make sure (as best I can) that the problem is the bcu before I send it away. Also I have had the unit out and open and cant see any obvious damage, so I am not 100% sure.
Ive got a wiring diagram and think I know what wires I am looking for, but a little unsure of how to test the connections when they are plugged in and with power.
Does anyone have any advice?
Thanks
Luke
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