can this be two bulbs burned out? Another thing to do list...

 

What year and headlamp type (quad or "Euro") are we talking about?

If you have quad lamps and no high beams *whatsoever*, then you have *four* bad bulbs....the inboard high beam bulbs and the high beam element of the outboard lamps. Four burned out elements seems unlikely.

What's more likely is a problem with the relay.

If you have the Euro style lamps, well, I'm not sure how high beams are configured and wired on those.

Cheers
DD

 

I had that issue with my old 96. Needed an new relay. Found one new for $150.

DAC6902, I believe was the part name. People on eBay wanted $200 for a used part, that would probably go bad in a short time as well. I sent them the link to the place that was selling it new, and he matched the price?

Figuring he wouldn't figure out the logic, I just spent the $150 for the new part.

 

My car is a '95 4.0 convertible...
It's DAC6902 Headlight Logic Module. It's on the left hand front wheel housing relay bank. It's the black box on the end toward the bulkhead. This module contains a circuit board and two relays. Usually the relays burn out - first one relay craps out and then the second.

 

my car is a 92 5.3 convertible.

 

Being a '92 it should have the Euro style lamps.

I guess the best thing to do is get out your test light or meter and see where the voltage begins and ends.

Go to section 4 of this diagram


http://www.captainjaguarscathouse.co...ec%20Guide.pdf

There is a "Headlamp Control Unit" which might be the same thing as the others have referred too.

Cheers
DD

 

My 92 had no high beams when I bought it. Replacing both bulbs fixed it. Pretty crazy.