Dash Signal Lights

[HeisenBob]

I couldn’t get the right signal to work and took apart the steering wheel to diagnose. The switch was all gummed you with old fried grease and broken in one spot. I was able to force it to the right and the right turn signals worked. The light in the dash also worked. So I replaced the turn signal switch in the steering column and also took out the instrument cluster for a thorough cleaning. I was missing 7 bulb sockets and there was some corrosion but not terrible on the plastic circuit board. I cleaned with high grit sand paper and greased all connections with dialectic grease. I put in new bulbs and I checked all the connections with a 12v plug in before reinstalling the instrument cluster. I also cleaned the bus bar under the dash as well as the service switch and blackout switch.

Now, after reinstalling everything today, the right turn indicator light in the cluster isn’t working. The turn signals outside the truck work fine. I reached up behind the cluster and pulled the bulb socket out thinking I had a bad bulb or bad connection. I retested the bulb in the socket with the 12v plug and it lights up. But, after plugging back into the cluster, it still won’t come on when Ihit the right turn signal. I thought that maybe my switch might be faulty but I’m not sure if the switch effects the cluster light.

Any thoughts or suggestions?

 

[cucvrus]

Check the printed circuit board at the main plug connection. I think you have a slipped connection in the circuit board or a small break in the cooper band of the circuit board. Good Luck. Be Safe.

 

[HeisenBob]

Check the printed circuit board at the main plug connection. I think you have a slipped connection in the circuit board or a small break in the cooper band of the circuit board. Good Luck. Be Safe.

I was really dreading having to take that all back apart. The cluster was really a pain to get out.

 

[HeisenBob]

Turns out that I didn’t get the bulb socket seated correctly on both sides. The socket prong was under the panel instead of over the top to make connection to the copper. Glad it was a simple fix.