Courtesy lights Bulb size ????

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Old May 17, 2013 | 08:30 PM
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55chevycraig's Avatar
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From: Wadsworth, Ohio
Question Courtesy lights Bulb size ????

I've got a 69 cutlass S installing under dash courtesy light harness. The new harness came with out bulbs what size or # bulbs are suppose to be in it ???
Thanks Craig
Old May 17, 2013 | 08:55 PM
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Your Chassis Service Manual (page 12-63) says 90 for "courtesy light."

If I recall, the 90s are the same ones used in the rear armrest lights of the convertibles, with two pins on the bottom that connect to the filament, and no connection to the base.
Check the configuration of the sockets to be sure this is accurate.

- Eric
Old May 17, 2013 | 10:47 PM
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69442C's Avatar
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90 is the correct bulb to use.
Old May 18, 2013 | 12:26 PM
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I threw in 1004's (modern number) and they worked perfect.
Old May 21, 2013 | 03:41 PM
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55chevycraig's Avatar
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Talking Bulb size

Thanks on the replies got 90 or 1004 update #.
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