I turn on the lights and the dims work, but not the brights. Neither does the dash indicator light work.

A few weeks ago the dims went out in a similar fashion (no dims working, but bright were working). I noticed I was getting power to & from dash switch, also to and from the dimmer switch under the hood. I figured it was a good time to go ahead and install relays, using the dimmer switch out line as the relay's activator. Really enjoy the improved power to the dims.

I am capable and ready to install relays for the brights. But, how do I wire this to ensure that the dash indicator also lights up?

Does this condition indicate a problem with the Bulb-Integrity Sensor?
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rich - '85 244DL with 302k

gunked up and loose connector for dimmer switch under hood

thanks Evan
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rich - '85 244DL with 302k

first off, the bulb fail sensor does NOT monitor the high beams.

coming off the underhood switching relay are 3 wires in red, off of one terminal. one for each high beam, one for the dash light.

super, thank you - i have tried to understand the Bentley wiring diagram, but understand just a bit too little

so, does this indicate, then, that i have a mucked contact in the dimmer switch (click-clack) under the hood? - it does still go click-clack and turn off the dims

hmm, i guess a multimeter, a wrench, and a phillips may tell me the answer to that
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rich - '85 244DL with 302k