Something is going bad

[Old Hippy]

I took the Mastiff out today, and the headlight started going to high beam mode, all on it's own. At first, it was intermittently, but before I got home, it was staying on high beam all the time. Is it what I think it is???? If so, time for Wire Plus???





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[Top1371]

Could have swore I read on here that the high beam comes on if the low beam filament is burned out.

 

[IIWII]

Happened to me last fall.... It was just the bulb.

 

[BBChopper]

Could have swore I read on here that the high beam comes on if the low beam filament is burned out.

X2 Hip!:2thumbs:

 

[TheDeadOne]

deleted

Request For BDM/BDB Administrative Assistance!

 

[Old Hippy]

Hey Hip,
Very common issue for '04 thru '06 BDMs! :down:....:zzdisappointed:
Check for all of the following, that can cause your issue.
1- Headlight bulb (doubtful, but may be.)
2- Headlight Bulb H4 connector melted (likely) See Service Bulletin below
3- Intermittent Headlight wiring or connectors not making good contact or connection. (possible)

SERVICE BULLETIN issued for every unit built from '04 thru '06!

Make : BIGDOG Model : MASTIFF Year : 2004
Manufacturer : BIG DOG MOTORCYCLES, LLC
Service Bulletin Number : 1077 Date of Bulletin : JUN 16, 2006 (NOTE: See Post 9)
NHTSA Item Number : 10020065
Component : EXTERIOR LIGHTING:HEADLIGHTS
Summary :
HEADLAMP CONNECTOR MAY MELT, MAKING BULB REPLACEMENT DIFFICULT. *TT
Check to Request Research. Submit below.


Shot me a PM tomorrow afternoon or Monday if you find or don't find and I'll try and help out some more! :2thumbs:

dead

Hey Thanks Dead. I have had that headlight connector replaced already. I will do some diagnostics this week and get back with ya. I am always thinking EHC when anything goes wrong. Starter is also giving me a fit, and that just started today...AFTER the high beam issues. Woe is me...it's always something. And I gotta have the Scooter running for this pending wedding. Thanks for your kind offer. I will get back in touch.!!!

 

[chacha]

The 2004 and below EHC doesn't have the logic to switch to the highbeam if an open on the lowbeam is detected...only later models.

This symptom is not a guarantee the EHC is dying, but it has happened to a few in advance....me included.

 

[Old Hippy]

The 2004 and below EHC doesn't have the logic to switch to the highbeam if an open on the lowbeam is detected...only later models.

This symptom is not a guarantee the EHC is dying, but it has happened to a few in advance....me included.

Thanks Chach..I am going to try a new Braille battery first, then tackle other issues.!!!! If it is the EHC dying, Wire Plus will be the next move. Wire Plus was going to be a future move, but time may dictate otherwise.!!!

Happy Fathers Day Chach





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[TheDeadOne]

deleted

Request For BDM/BDB Administrative Assistance!

 

[jsub]

The 2004 and below EHC doesn't have the logic to switch to the highbeam if an open on the lowbeam is detected...only later models.

This symptom is not a guarantee the EHC is dying, but it has happened to a few in advance....me included.

Mine was the high beam circuit. Over 3,000 miles since & no problems with the wp.