Defender

Wire Colour Guide

Function

Disco

EMS IV

Ignition

White/Green

Red

Ground

Black

Black

Oil Switch

White/Brown

Orange

Temp Sensor

N/A

Yellow

Water Level

N/A

Brown

Alternator

Brown/Yellow

Green

Speedo

Yellow/Pink

Purple

Good quality connections are vital to ensure reliable operation.

Temperature Adaptor and Sensor installed into Cylinder Head. Remove lower bracket bolt, clean hole and thread thoroughly to ensure a good thermal bond to the adaptor.

Float Switch installed into expansion bottle.

22mm hole required - tighten finger tight plus one turn. Connect one wire to EMS IV brown, other wire to good ground.