High beam woes

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Dec 20, 2018 | 08:04 PM

woody367

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More Turbo

Joined: Nov 2004

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From: Denver, NC

High beam woes

Ok sorry in advance if this has been asked but have not found the answer. My high beams do not work. With lights on the low beams work fine, flip to high and lows stay on but no highs. The high beam indicator on the dash lights. When the lights are off the flash to pass work. I changed the fuse for the high beam and it is ok. Is there another fuse or relay to try? Any other thoughts? Thank you

Dec 20, 2018 | 09:03 PM

projectSHO89

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Joined: Jan 2004

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From: St Louis

Are we supposed to guess what you're working on?

Dec 20, 2018 | 10:13 PM

woody367

Thread Starter

More Turbo

Joined: Nov 2004

Posts: 515

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From: Denver, NC

Sorry it's a 04 F250.

Dec 20, 2018 | 10:20 PM

99f350sd

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Joined: May 2003

Posts: 9,303

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From: Lyndonville, Vermont

Try toggling the 4 ways a few times. Other than that it may be your Multi-function switch..

Dec 21, 2018 | 05:56 AM

projectSHO89

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From: St Louis

Is the truck equipped with either autolamps and/or DRLs? You cannot expect to get solid technical assistance without full identification of what is under discussion. Details matter.

Quote:

My high beams do not work. With lights on the low beams work fine, flip to high and lows stay on but no highs. The high beam indicator on the dash lights. When the lights are off the flash to pass work.

This is an illogical set of symptoms for a conventional (basic system). The high-beam indicator in the cluster is in parallel with the high-beams well downstream of the MFS. It would be impossible for the FTP function to work correctly but to then have a high-beam indicator ON with high-beams off.

Recheck your configuration and symptoms and restate them, if necessary.