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Discussion Starter · #1 ·
I know we got people here that work on a lot more than just our crx's besides me so I figured this was worth a shot.
My girlfriends 93cx hatchback now blows the #15 fuse, back up light ?(at least that's the fuse I think it is since she lost the clear fuse label that was there, found a pic online of it so thats why I think it's that one) which also kills the speedo, water temp and fuel gauges & the blinkers[hazzards still work though]. It did it tues or wed night, changed the fuse and it lasted till tonight. now it blows them immediately. Nothings been worked on recently.
I found one back up bulb coming apart but that wasn't it.
Obviously there's a short, I just haven't found it.
Anyone have anything similar happen, or any directional ideas?
 

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after looking at the wiring diagram i would recomend to disconnect the gauge cluster and see if it still blows the fuse.

did the fuse blow?
yes- continue to step two.
no - try known good guage cluster

step 2
there is a yellow wire that goes from in dash fuse box #15 fuse location to the guage cluster in the wiring harness it splits into two wires, and goes to connector on gauge cluster C9 and then to connector A3 test that yellow wire for short to ground.

connector c is a 14 pin connector a/t only.
connector a is a 10 pin

is there continuity to ground?

yes - find were wire is bad and replace. sodier and heat shrink
no - then its most likely in the fuse box try known good fuse box.

you can download the 92-95 civic shop manual from www.hondahookup.com

hope that helps you out.

scarponze

edit - shop manual says #15 fuse in dash is for gauge and warning lights, clock.
 

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Discussion Starter · #3 ·
Thank you very much for that info, I'm going to try to check it before work tonight. I was thinking of puling the cluster last night but got tired of messing with the car around 5:30am (I started fooling with it around 3:30-4am)
 

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Discussion Starter · #4 ·
Well, it's not the cluster or fuse box. I actually completely dissasebled the fuse box, that thing looks like a crazy puzzle inside, but fine.
Narrowed it down to a yellow wire coming off the rear of the fuse box in a green 22 pin connector on the upper corner, from there it goes into the big loom of wires going over to the passenger side under the firewall mat/insulation stuff. But I cant find where that wire goes. All I have is a haynes manual and I can't seem to find that connector in there.

I tried downloading the manual from that site but I get a invalid zip file or some message like that. For now I just de-pinned that wire and she has blinkers and speedo again, not sure on the fuel and temp gauges, I didn't go for a drive in it yet.
 

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the honda shop manual isnt much better the only other thing i can find is a list of exactly what all that fuse controls... there are 3 wires coming out of the fuse box for the #15 fuse

first wire
intigrated control module

second wire
gauge and indicator lights
cruise control indicator light
shift lever position indicator (a/t only)
turn signal/hazard relay
clock

third wire
back-up lights
shift lock solonoid a/t
interlock control unit
shift position consol switch
lock up solonoid

now if she has gauge controls and turnsignals back i would venture to say that the wire that you de pinned is for the back up light switch. pending the vehicle isnt and automatic... i dont think cx's came with autos...

next i would say disconnect yellow back up light wire from the switch on the tranny check continuity with the pin u pulled from the fuse box. to make sure thats were the wire is going... if it is then check for a short to ground in that wire. if it is shorted to ground repair wire. if not try a new switch. any d/b series switch will work i do believe.

let me know what you find...

scarponze
 

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Discussion Starter · #6 ·
Manual trans, no cruise, no clock. Control module looks fine inside and out and no short there.
And all the gauges work, hazzards worked even with the blown fuse.
The problem I have with checking continuity is anything with ground has continuity. Unless I'm supposed to be using one of those other settings on the meter and getting different amounts of it. Didn't try that.

I'm starting to think back up lights are not that important.... :lol:

Thanks again for all the help. Probly the most indepth I've gotten yet on any matter.
 
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