Rear light exterior circuit diagram and color code needed

WILLIAM KING2

MEMBER
2004 DODGE RAM
5.7L
V8
2WD
AUTOMATIC
259,000 MILES

I am installing led replacement bulbs and have hyper flash so I am installing a resistor. When I check for continuity it shows 3 different wires on the left side and I need to know which wire to hook up to the resistor.

Thursday, July 22nd, 2021 AT 10:59 PM

3 Replies

CARADIODOC

MECHANIC
33,873 POSTS

Here's everything related to the rear lights. There's two bulbs on the left side. Both share a circuit for the tail lights, but the larger filaments are on separate circuits. One bulb is for the brake light and the other one is for the turn signal. The blue arrow shows the white / dark green wire is for the left turn signal.

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Friday, July 23rd, 2021 AT 11:12 AM

LMACKSAND61

MEMBER
4 POSTS

On my 1997 I had to take that resistor out so my turn signal lights would flash properly. And just used a flasher in the fuse box. I did that over 2 years ago and it works fine.

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Monday, May 9th, 2022 AT 5:16 PM

KASEKENNY

MECHANIC
18,907 POSTS

That is great. Thanks for the info on this as I am sure that info will help others.

Clearly a relay would cause this so it always helps when we get confirmed fixes which will help others.

Thanks again.

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Monday, May 9th, 2022 AT 6:36 PM