Any one got a ecu pin wiring diagram for a 2007 grande punto, I'm want to trace the cable from the alternator to the ecu.

Thanks

What engine ? Am not back in work until thurs but will have a look then

1.2


Thanks

Plug a , green/black wire pin 19

Thanks for your help, its grey/black at the alternator, you sure this is right (please don't take this the wrong way, I really appreciate the help).

Could have been grey /black only had time to have a quick look whilst the boss was out of the workshop and autodata only abreviates the colour codes no doubt its the same colour at the ecu as the alternator , make sure you load test the wire if you suspect it's breaking down integrally

Thanks again for your help, what's the best way to load test the cable?

The way I do it is disconnect both ends of the cable to be tested ie unplug the plug from the ecu and disconnect the alternator earth one end make a lead with a croc clip for that then take a 477 headlight bulb put 2 wires on it connect one to the wire to be tested and the other to the battery + if the bulb lights good and bright its taking the load no problem a 55w bulb draws just under 5a which is more than any signal / sensing wire will take in normal operation
Hope that helps
Keifer