[John Sweeney]

Originally Posted by TonyS9

Could well be the rectifier but just to check on the testing..

When you checked the voltage drops was this with a large load, or using the meter continuity?

The best sensitivity is to put the high beam headlights on with the engine running and measure the voltage across the cable.

Thanks all. Tony, I checked using the meter with a moderate load (I think it was heater fan on full and heated seats).

I'm planning to test the rectifier tomorrow and at least then I'll know what the problem is or be able to admit defeat!