Gbos1

Thanks will try this too!

Ivan J

Are you sure that you didn't mix-up the wiring harness connections between the turn signal and the side marker?

Based on your description, it sounds like the bulb socket for the turn signal is open, and your bulb is installed in the socket for the side marker.

Gbos1

No. The front turn signal has a "Dual Filament Bulb." It comes on as a running light and flashes as a turn signal. Currently, it's not flashing only comes on if I turn all the lights on and stays solid. If I turn the turn signal stock to the right on that side it flashes like crazy and is not lit only the rear bulb flashes rapidly. If I turn the Hazards on only the Front Passenger WILL NOT LIGHT OR FLASH all other three will blink.

TMc993

This makes sense. The hazard switch just activates a relay that flashes all four turn signal filaments at the same time.

It still seems to me that you're having an issue getting juice to the passenger side front turn signal filament.

One other suggestion...I can't remember if the contacts in the bulb socket are the thin metal type that can be bent upward. If they are, reach in with a pick or small screwdriver and bend them so that they stand up "prouder." It may just be something as simple as a flattened contact not touching the bulb base.

OverBoosted28

Not sure if it could occur, but is it possible for relay (up under LH corner of dash) to malfunction (as opposed to complete fail) and cause the 3 only to work? I know a rapid flash, of any sort, usually means one corner needs addressing, and may NOT be the corner that's not working. I love old electronics 😖

TMc993

From the 928 forum. Same problem, just on left rear instead of right front:

I wanted to update this thread for reference in case someone has a similar issue. As with many issues, the devil is in the details. I started to trace the wiring and couldn't find any area that appeared to be significantly worn or shorted. So i started over again from the beginning, starting with the fuse panel. It occurred to me that even though the fuse was still operational for the left rear turn signal - the fuse visually was fine and I had voltage at the socket - I went ahead and just swapped in a new fuse and lo and behold the signal started working again.

My guess is that there was enough surface corrosion to cause enough of a voltage drop that would keep the bulb from lighting. So definitely a lesson learned for me - fully run down the simple problem areas before trying to over complicate issues. And also make sure your connections are cleaned.

Gbos1

Thanks again guys. I swapped out the existing turn signal fuses with all new ones. Still nothing.

I am betting the Relay has failed partially. When I originally put in the "single filament incorrect 1156 bulb" vs the correct 1157 Dual Filament bulb it jacked / shorted the relay. Just ordered a new Turn Signal / Hazard Relay from Suncoast. I have exhausted every other possible option. I deserved this one! My fault! Argh!

Guessing popping out the Gas / Oil gauge is the best way to access the damn Relay buried behind the dash from a few threads I have read on here. Will report back. Son of A! I could just kick myself for not checking they were the correct bulbs!!

TMc993

If the incorrect bulb did in fact blow the relay, then the relay was definitely on its last legs and you just helped it along a little bit. These things happen when you work on your own stuff and in the end you (And hopefully others) will have learned something. Let us know when you get it repaired.

mpruden

Crazy as this sounds, the alarm module actually plays a part in controlling the turn signal bulbs.

While I doubt it is causing your problems, don't ignore it in your troubleshooting.

Foxman

Sorry for your troubles GBos. Hope you have small hands to fit though the oil gauge opening.

Check out this thread, and my post at #116 for images of the gauge and relay being removed. Now would be a great time to install Tore's LED lights and this LED flash relay. https://rennlist.com/forums/993-forum/812306-led-turn-tail-brake-lights-kit-from-tore-8.html

Gbos1

Ha! I read a few threads here and they didn't have any issues reaching in to swap it out. Shall see! Yeah I hear you about the LEDs. Maybe next Spring when I get some more time. Will report back on my findings. This is a last ditch effort and already have an appointment with my mechanic if this doesn't work.

Gbos1

**UPDATE**

Got the new Turn Signal Relay

Popped out the Gas / Oil Gauge inside dash .....easy as pie to replace. Hand fit fine. NOTHING has changed! Old Relay was good! Passenger Right Front Blinker WILL NOT BLINK! Will come on as driving light but will not flash. Inside when put on right turn signal it flashes fast and rear passenger light flashes. Fuse is good and tested. I checked every fuse in the fuse box and all are good.

I have exhausted all options at this point and it's going to my mechanic next Monday. "I GIVE UP!"

Gbos1

**UPDATE**

Took my car to my mechanic yesterday. Gets the car up on the lift..removes front passenger wheel. Traces Passenger Turn signal wire.... LOW AND BEHOLD at some point before I got the car a rodent chewed the wire... literally like little teeth marks! When I went to remove / change out the lens and bulb it must have been enough to pull the wire apart thus causing the connection to fail! So anyways he went in and replaced everything and checked everything else and all looks great. BIZZARRE!!!

pp000830

Yes the little f,,k,rs love the taste of premium vinyl wire insulation!

AZ Targa

lol I would never have thought to look for that, at least it was easy to fix.