temp & gas gauge working on & off


Information and questions on GL1500 Goldwings (1988-2000)
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omarosses
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Joined: Thu Nov 24, 2022 5:24 pm
Location: United States
Motorcycle: 1997 Honda GL1500SE

temp & gas gauge working on & off

Post by omarosses »



Hello! I have a 1997 GL1500SE , temp and gas gauge working on and off, relay #3 has been replaced, it worked good for a little bit and now its doing it again. I've heard about a possible 7volt regulator going bad, if so, where is located at? any inputs are appreciated . Thanks


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DenverWinger
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Location: Denver, CO
Motorcycle: (s)
'80 GL1100 STD Vetter (2005-)
'93 GL1500 Aspencade (2017-)
'83 Trav-Lite Camper (2010-)
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Re: temp & gas gauge working on & off

Post by DenverWinger »

There is no 7v regulator on the 1500's only the 4 cylinder wings have them.

Since you already replaced relay 3, about the only other thing in common to the two gauges would be an intermittent ground to the instruments.
There are 10 types of people in the world, those that understand binary numbers, and those that don't. :lol:

♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:
~Mark
User avatar
DenverWinger
Posts: 2279
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
'80 GL1100 STD Vetter (2005-)
'93 GL1500 Aspencade (2017-)
'83 Trav-Lite Camper (2010-)
Past rides
'72 CL350 (1980-1988) sold
'78 Suzuki GS550 (1985-2005) sold
'77 GL1000 (2002-2006) sold

Re: temp & gas gauge working on & off

Post by DenverWinger »

Update -
I said a ground, but I retract that, I think the ground going to that gauge cluster is only for the lights in that cluster. Gauge grounds are separate, and pass thru the temp sensor/fuel sensor on the way to ground, so it must be a flaky power connection to the gauges. I doubt relay 3 is the issue because there's an awful lot of systems going thru that relay, if the relay were bad there'd be a lot more than just gauges not working.

Intermittent problems are the worst kind, you get in there with a test light on a connection and suddenly things are working again and of course you can't find a fault if there is none. I'd start troubleshooting by pulling plastic, the radio shelter and left side, and start wiggling wires to see if you can find a questionable connector somewhere in the wiring harness going between the relay and the gauges which causes the fault.
There are 10 types of people in the world, those that understand binary numbers, and those that don't. :lol:

♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:
~Mark
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