[Vwdiesel] Continued taillight trouble

[Tony and Lillie]

Kneale, check one thing real quickly. I've seen the harness get pinched in 
the front where it runs along the top of the radiator behind the grille. 
I've probably seen this three times on A3 Jettas/Golfs. It's the harness 
that goes to the front lights.

Tony

----- Original Message ----- 
From: "Kneale Brownson" <knealeski at sbcglobal.net>
To: <vwdiesel at vwfans.com>
Sent: Saturday, July 04, 2009 1:31 PM
Subject: [Vwdiesel] Continued taillight trouble


Chasing down the whatever causing my weird taillight performance:

I've cleaned up all the trunk grounds that a couple years ago caused a 
similar symptom with the tail lights without getting the solution I got 
then.

I've determined there is continuity between ground and the contacts of the 
bulb holders where the power goes to the bulb, as well as between the ground 
on the bulb holder and the power contacts.

What happens:

With the brake pedal depressed, both filaments of the tail light bulb light 
up, along with the bulb in the yellow turnsignal section at the rear and the 
yellow lights in the front of the bumper.

With the pedal still depressed and the light switch activated, both 
tail/brake bulb filaments stay on, but the rear yellow goes off and the 
front side marker comes on.

With the pedal still depressed and the key and lite switch on, when using 
either flasher activated, both tail/brake light filaments work and the 
yellows flash front and rear. I get a faint glowing of the green arrows on 
the instrument cluster between flasher uses.

With the brake pedal released, and key and lite switch on, rear brake/tail 
lights have just one filament lighted and rear yellows go off. Dash arrows 
go off too.

With the pedal reseased, the key off and the lite switch on, still one 
filament in the brake/tail bulb and front yellow lites.

Any suggestions to where the continuity between the grounds and the power 
contacts of the bulb holders comes from?

I do have a trailer lights setup with its own power supply installed. It was 
installed after solving the grounds issue a couple years ago and worked fine 
with the trailer until the current issue developed.


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