Running tail light does not work

GIL123

MEMBER
2001 CHEVROLET TAHOE
4WD
AUTOMATIC
175,000 MILES

My passenger rear running tail light won't go on but when I press the brakes it lights up only won't go on at night when I need them to what could it be

Thursday, May 14th, 2015 AT 10:08 AM

8 Replies

JOHNNYT73

MECHANIC
924 POSTS

Is it just one side that does not light up? Have you tried replacing the bulb? The bulbs should be double filament bulbs that are with running lights and brake lights.

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Thursday, May 14th, 2015 AT 10:49 AM

GIL123

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6 POSTS

Yes it only the passenger rear side tail light when I press the brake it lights up but the running light does not work change the bulb already still won't light up

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Thursday, May 14th, 2015 AT 11:50 AM

JOHNNYT73

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924 POSTS

Ok, you need to just replace the circuit board that all three bulbs plug into.

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Thursday, May 14th, 2015 AT 11:56 AM

GIL123

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6 POSTS

By chance were would I find the circuit board?

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-1

Thursday, May 14th, 2015 AT 12:13 PM

JOHNNYT73

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924 POSTS

Attached to the back of the tail light. Attached a photo.

Image (Click to make bigger)

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Thursday, May 14th, 2015 AT 12:19 PM

GIL123

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6 POSTS

My truck has individual ones

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Thursday, May 14th, 2015 AT 12:29 PM

JOHNNYT73

MECHANIC
924 POSTS

Ok, look inside the connector where the bulb goes into. Does it look burned or melted? What is the bulb number you have in there now to replace the old one?

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Thursday, May 14th, 2015 AT 12:36 PM

GIL123