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Digital speedometer and odometer not working, along with antenna, horn and trunk pop?

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Old Jul 7, 2001 | 05:13 PM
  #1  
rondubbs's Avatar
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From: Staten Island, NY
Digital speedometer and odometer not working, along with antenna, horn and trunk pop?

ok so what fuse/relay blew??? the speedometer reads 0 km, and the odometer is totally blank..
the service thing reads "Pontiac systems normal" and it always used to say "F lamp out"(even though it wasnt),, so somethings wrong.. i think something blew when i was honking my horn today for a long time....
HELP.......
what controls the digital dash, horn, antenna and trunk pop??????
could all of these fuses blew out???

------------------
1988 GTA Trans Am 350tpi: 48k miles,3:27 BW rear, aftermarket t-tops
Hotchkis: subframe connectors & strut tower brace
Flowmaster: 3inch exhaust& dual chamber muffler
Accel: 8.8mm wires, cap&rotor, u-groove spark plugs
Edelbrock: 52mmTB, intake & runners
K&N: filtercharger
TPIS: 170* stat, afpr, mat relocation kit
March: performance crank and alternator pulleys
Hypertech: 176* fan switch
Other mods: ported plenum, gutted cat, tb coolant bypass, homemade cold air induction, flux capacitor@ 1.21jW, driver side floor mat removed
1/4 mile - 14.58
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Old Jul 8, 2001 | 11:50 AM
  #2  
rondubbs's Avatar
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From: Staten Island, NY
ok, i found the fuse, #11, it controls these things..
i tried to replace it and it sparks and blows out,, so whats wrong?

[This message has been edited by ron rizzotti (edited July 08, 2001).]
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Old Jul 8, 2001 | 12:49 PM
  #3  
AlkyIROC's Avatar
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Since it started when you were blowing the horn, I'd start there by disconnecting it and installing another fuse. If it blows then unplug the trunk. Insert another fuse and try again. If it pops then plug the trunk back in and go to the antenna. Something in that curcuit is going to ground and blowing the fuse.

You can make a short tester instead of blowing fuses to see if you fixed the problem. Get a headlight and connect some wires to it. Put some spade connectors on the other end and insert them where the fuse goes. The headlight will take the load of a short and be very bright. When you find and remove the cause of the short, the headlight will go dim.

------------------
Follow my racing progress on Stephen's racing page
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87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block

Best ET on a time slip: 11.242 altitude corrected to 10.89
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87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley
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Old Jul 8, 2001 | 03:08 PM
  #4  
rondubbs's Avatar
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From: Staten Island, NY
well for some reason there was a dime at the bottom of my cigarette lighter... i guess it was shorting things out..
i took it out, put in a new fuse and everything is cool.
hopefully the dime was causing the problem.
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Old Jul 8, 2001 | 03:20 PM
  #5  
AlkyIROC's Avatar
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
You never mentioned a cigirette lighter in the curcuit or I would have suggested that as the first thing to check. More fuses are blown because of a shorted out socket than anything else.

Now the big question is. How did the dime get in there? Someone wanted to blow the fuse.
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