[Ryanogawa]

Hi there,

I recently picked up a 77’ 280z coupe and it seems to have been pretty well taken care of, only there have been a few wiring mods, and there is a crack in the lead joint at rear hatch.

at the moment I’m trying to pin point why the front side marker lights don’t work, I’ve cleaned the connectors with no luck. All other lights seem to work perfectly fine and I checked and replaced most of the original fuses.
Any suggestions?
I'm going to keep on trying to track it down.

-Ryan

 

[oregonipa]

Have your verified the bulbs work and are correct? There can also be issues with the blinker wand and combination switch (headlight switch/controls). Lastly, I recently somewhat refurbished the side marker lights on my '77. The inside of the bulb housing on one of my lights had enough corrosion that the bulb wasn't able to make a connection. A few minutes of scuffing up the contact points in the housing and it was good to go.

 

[Ryanogawa]

First of all thanks for the quick response. I put my good rear marker bulbs in the front with no luck, also gave the bulb contact points a light sand. Looks like I’m going to start at the light combo switch next and see what things look like there. I’ll post any findings. Thanks again!

 

[oregonipa]

I'll admit, it was slightly more than a "light sand" in order for me to reestablish the contacts points inside the bulb housing. If you have the housing out, you can use a multimeter to check where the wires meet the housing. Anyway, it's always an easter egg hunt!

 

[Ryanogawa]

So did a pretty good sanding inside the bulb housings, no luck. Also checked the wiring at the bulb housing with a multimeter and show no power. Lastly cleaned the connectors for the side markers.
Going to crack open the steering column now and check that combo light switch.

 

[steve240Z73]

Go to Xenonzcar.com and find the 77 FSM. There is a link in my signature. On page BE-13 (509 of 681 in the PDF) there is a circuit break out for the running lights. The front side markers and front markers are on the same circuit.