07-21-2012 | #1 |
Join Date: May 2011
Location: Sydney, Australia
Posts: 2,479
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Electrical Short.
Is there any other fuse panel other than the panel on the right side of the dash?
I am almost positive the 93 has a short. I disconnected the negative terminal off the battery and connected a meter between the Negative wire and the negative on the battery there is 12vdc present on the meter. I pulled every fuse in the fuse panel and I still have 12vdc on the meter. I checked to see if there was any aftermarket wiring that I could see and I didnt see any. Any Ideas?
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Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car |
07-21-2012 | #2 | |
Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
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Re: Electrical Short.
Quote:
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Scott Vett owner since 1979._It's about the car and the people |
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07-21-2012 | #3 |
Join Date: May 2011
Location: Sydney, Australia
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Re: Electrical Short.
Where would the live circuit be? The ignition is off and all of the fuses are pulled. There should be no circuit unless there is a short.
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Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car Last edited by cvette98pacecar; 07-21-2012 at 08:46 PM. |
07-21-2012 | #4 |
Join Date: Jun 2012
Location: PA
Posts: 772
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Re: Electrical Short.
I know on the 1990 " there is a fuse holder located behind the instrument panel, below and to the right of the glove compartment. To access the the fuse holder, you must remove the cover under the instrument panel on the passenger's side." That's straight from the owner's manual with a pic and an arrow pointing under the glove box. Hope that helps.
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Joe 1990 Bright Red ZR-1 #2599 |
07-21-2012 | #5 |
Join Date: Jan 2006
Location: Niceville
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Re: Electrical Short.
Check amperage for a current draw, vs voltage. That will show if there's a parasitic draw. There should be a small bit for powered items with key off.
Ted |
07-21-2012 | #6 | |
Join Date: Mar 2009
Location: Orlando, FL
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Re: Electrical Short.
Quote:
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2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold) |
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07-21-2012 | #7 |
Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,207
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Re: Electrical Short.
Putting the reason why you'd see 12v on the neg side of the pulled battery wire, why do you think there is a short?
What is the original symptom? Battery runs down ?
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Scott Vett owner since 1979._It's about the car and the people |
07-21-2012 | #8 |
Join Date: May 2011
Location: Sydney, Australia
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Re: Electrical Short.
Battery is on a tender always and it is dead, The tender can keep up with the drain.
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Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car |
07-21-2012 | #9 |
Join Date: May 2011
Location: Sydney, Australia
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Re: Electrical Short.
That was the next step after checking for a closed circuit, when the circuit should be open.
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Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car |
07-22-2012 | #10 |
Join Date: Jun 2005
Location: CenCoast California
Posts: 899
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Re: Electrical Short.
If you connect a volt meter between the batter and ground it will read whatever the battery voltage is.
If you connect an amp meter between the battery and ground you'll read current flow. There should be only a few hundred milamps. From reading the other posts, I think you understand the procedure of using either a test light or an ammeter then pull fuses. You might also have a battery which is, itself, shorted.
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Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878 |
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