"bush mechanic huh",
You did fine.
This might help next time in the "bush",
Cars use DC current,
DC current is produced by the movement of electrons,
And these are negatively charged particles.
Which means it all works by these things coming out of NEGATIVE TERMINAL of the battery.
So in this case that means battery to chassis through the lamps up the wires to the BSI then switched by the same then routed via the light switch back to the battery pos+,
Kind of counter intuitive as most folks when faced with electrical faults concentrate on the battery positive side first.
Switch you thinking and electrics become a lot easier to figure out.
Posted on Wednesday 7th of March 2018Don't understand this? Ask a question