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Author Topic:   Connecting Gauge Lights
cwolf posted 05-25-2006 12:34 PM ET (US)   Profile for cwolf   Send Email to cwolf  
Some of my gauges have backlighting but I unsure how to connect. They all seem to have just one brown wire. Is this the hot wire for the light and the ground is shared by the gauge's primary function wire (black)? In other words the gauges all have 3 wires (Red & Black and Brown). Also, can I connect all these gauge lights to one master switch. Thanks in advance for any help.
jimh posted 05-25-2006 09:06 PM ET (US)     Profile for jimh  Send Email to jimh     
The lamps for gauge illumination are usually wired in parallel and connected to a single switch. Often the compass illuminatioin is also controlled by this switch. The lamp circuit does not have a separate return; it uses a common return in the instrument wiring.

According to the usual color code, the gauge illumination circuit is normally wired with wire having insulation of BLUE color.

Wire with BROWN insulation is normally used to control PUMPS.

Jakwolf posted 05-30-2006 12:06 AM ET (US)     Profile for Jakwolf  Send Email to Jakwolf     
Wow, learn something everyday. Thanks, jim. Can you direct me to an area to find this color code? I'm assuming we're talking marine color code.
Chuck Tribolet posted 05-30-2006 12:12 AM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet


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