Thanks for all the help.

The fog lights say "Packard" on the housing.

There is no label on the switch, I got it on E-bay. It only has two positions - on and off. The advertisement said it could be used to switch on the fog lights with the tails lights like the original switch worked. (I probably will not do this)

The relay is marked: 6V 20/30A
0332204001
BOSCH

974 (with a circle around it)
Made in Spain

I bought it from Fifth Avenue Internet Garage

It is similar to what is shown in the second diagram. but my car (49 Deluxe Eight - 23 Series) is positive ground.

If it is a fog light switch, the second terminal may be for a tail light feed. Several of the wiring diagrams with fog lights show a second wire from the fog switch to the headlight switch tie point to energize tail lights. Is that particular switch illuminated by chance?

The problem is that how do we know that hte dash sw. is actualy meant as a fog lite sw.????? Two terminals on the sw. and or relay (one for each lite) make me suspicous that niether relay nor sw. is actualy for fog lites but orignated for some other application.

My '01 Dodge Ram has aftermarket Foglites. Uses a relay.

It would be advantagous to know what kind of amperage each fog lite draws on his Packard.

Ok the fact he switch has a 20 amp use in it, plus two "output" posts, I bet the switch was designed to power the fog lights directly without a relay. That is the only reason a switch would need a 20 amp fuse.

So each of the two non-batt terminals on the switch powers its own fog light.

You can tell that my applying power to the batt terminal and then using a test light connected to ground and then testing each of the other two terminals. When the switch is on, both terminals should light up when touched. When switched off, both should turn not light up.

So if this is in fact the way the switch is built, you can still hook it up per the diagram I provided, just leave one terminal with nothing hooked up to it. If you have the part number on the bosch relay I can draw you an updated diagram.

Quote:

I had sent them an email back when the article was published, but never got a response. But I have been so busy that I forgot to follow up on it again, and it slipped my mind.

I will be visiting my 34 this weekend. I will take some photos and measurements. Mine is an 1104, so it might not match perfectly. Odd to have this much variation!

Tom

Ok, I merged the two topics together. Basically you have to merge the newer of the topics into the older topic.

Is there any name on the fog lites??? Packard, Unity, Bosch or what???? Any name on the dash sw. ????

It strikes me odd that there are 2wo posts on the relay, one for each lite???? Strange.