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Pillar Mount Instrument Lighting/Power

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Dead truck-need help!

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I've seen serveral post concerning a power source for pilliar mount instrument lighting that can be controlled by the "Instrument Dimming switch".



The post have correctly identified the "brn" (actually "light tan")wire off the "Headlight"/"Dome"/"Dimmer" switch. However, there are two "brn" wires comming off this switch.



The one you want is on the corner of the connector and is labeled "14" on the connector. NOTE: If you test this wire for power (i. e. with a meter) you must have the instrument lights turned on (i. e. the headlight switch in "park" or above) to get a reading. The voltage varies from about 5V to 12V depending on the position of the variable dimmer switch. NOTE: This connector may be different on pre 1999 models, especially if you don't have the newer light switch with the fog light switch built in.



As noted in other threads, a good place for 12V power (that is on in the "accessory" or "on" position only) is the #8 fuse. If you don't have power seats, you can also get it off the empty "power seat" relay holder on the inside fuse box. Use your meter to determine the power side of the fuse, relay. NOTE: The #8 fuse and power seat relay may be different in pre 1999 models. ;)
 
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