Under dash wire identification help?

[fly_25]

In my 1985 cutlass supreme I have these 2 wire taped off with electrical tape under the dash, one grey and one tan, anybody have an idea what these are for? Thank you.

 

[383_StealthRam]

Courtesy light would be my guess...

1984 1985 1986 1987 1988 Buick Grand National GNX T Type Turbo Regal 3.8 L Aftermarket LED Under-the-Dash Interior Lights Bulbs (3) Set

www.kirbanperformance.com

Usually the door pin/jamb switch wire is white, but I think can also be grey. Simple test is put a test light across the two wires (assuming the orange is 12V+) and operate the pin switch in the door jamb to see if it goes on/off.

HTH

 

[fly_25]

I have the courtesy light hooked up already (unless there are 2) and the door jamb button works, turns the lights on and off. I will see if the voltage changes depending on the position of the door jamb switch

 

[383_StealthRam]

Does the car have (or used to have) a CONSOLE (and console shifter indicator bulb)? I think that might be for that bulb that lights up the PRNDL indicator on the console shift cars, or part of the console glove box light?

 

[5spdCab]

I would have to go out to the garage to check my service manual, but I think gray is for dimmable dash/panel lighting.

 

[383_StealthRam]

I would have to go out to the garage to check my service manual, but I think gray is for dimmable dash/panel lighting.

Yeah....I think that's correct, and the "console" PRNDL bulb dims with the other dash/radio, ashtray, HVAC controls, etc. backlight bulbs?

The Orange wire could be for the console glove box light which has it's own PIN switch to ground I believe.

 

[fly_25]

The car currently has a console shift without the prndl indication on the dash, it also has the rally pack gauge cluster

 

[fleming442]

Left front speaker, if it doesn't work.

 

[5spdCab]

Flemming442 is on to something here, trace those wires up a little farther to see if they join as a single peel and split cable. If so Flemming442 is correct, and the opposite speaker wire pair would be a two tone green peel and split.