On a landcruiser you have to earth the relay through the headlight circuit rather than just to ground.

Has something to do with the grounding in the engine bay.

So basically say on an 80 series.....

85 to high beam positive feed
86 to headlight negative feed
87 to positive feed + Fuse + Relay(to protect switch contacts) + Switch
30 to Driving lights positive

Driving light negative goes to battery not to body.

Other cars such as Mitsubishi Tritons and Pajero's are the same.

This works Ive just recently done a set on an 80 series.

If you mount it all at the battery tray on the left side it is all easilly accessable to the left headlight wiring and you only have to run a wire feed to the switch.

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