LET into corsa

[Adam]

Is 12v getting to the starter motor?

[let_nova]

must be, dont have a multimeter but i caught the red wire with the earth and it sparked.

[let_nova]

just tried -onto box and -v of battery
and +from battery to thick red on starter still no joy

[david dixon]

the black wire on the corsa loom is ignition live

David

[let_nova]

this needed for just turning the engine over? i have joined that to the single pin plug above box.

[MattBrown]

IIRC the blue with a white trace isnt needed for turning over.

And im sure its the alternator light, as opposed to the starter?

Take this off, and try it.

[let_nova]

the blue with white trace i have onto the alternator.

[Adam]

Just the red to the starter and the red/black to the solenoid is enough to get it turning over.

(Assuming its got a engine to chassis earth connection)

[MattBrown]

Big red to the big plug, black with red trace to the solenoid, there is no other wires needed to turn it over let.

Try a jump lead to the small red

[david dixon]

it shouldn't stop it turning over but it gives the ecu its signal, it connects to the clet loom black wire (single plug) the only starter wires are the black/red striped like nova, thick red to starter and maybe the thick brown from battery to block

David.