Partial electrical failure
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From: Arlington, NoVA, USA
Partial electrical failure
Upon my visit to Safeway on the way home from work, I returned to my car, turned it on, and certain things failed to work. Everything works on the car, and the car still runs, but here is a list that has failed:
Tachometer, Speedo
SRS
ABS
parking brake light
Power windows, sunroof
Clock, cigarette lighter, ashtray
Rear defroster...
Everything else works, power mirrors, lights, dash illumination, stereo, VAFC, etc... all fuses have been checked and are ok... my windows and sunroof are stuck open... so i need to get this fixed ASAP... Is there a master relay that controls just these things? Help!?
Tachometer, Speedo
SRS
ABS
parking brake light
Power windows, sunroof
Clock, cigarette lighter, ashtray
Rear defroster...
Everything else works, power mirrors, lights, dash illumination, stereo, VAFC, etc... all fuses have been checked and are ok... my windows and sunroof are stuck open... so i need to get this fixed ASAP... Is there a master relay that controls just these things? Help!?
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From: Arlington, NoVA, USA
Re: Partial electrical failure (scrubachu)
If I'm trying to check relays, wouldn't there be a master relay that would control this... if so, wouldn't it control more things (ie power windows and power door locks should be on same relay, but door locks still work)
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From: Arlington, NoVA, USA
Re: Partial electrical failure (DunReit)
OK, I went back tot he car, and when I turned it on, I heard a spark... I checked the fuses again, and now the #1 fuse has burned out... it's normally a 7.5A fuse, which I replaced with a 30A fuse... and that one burned out too... any ideas? a faulty relay somewhere? I'm trying to make sense of the Helms electrical diagrams, but am making very slow progress...
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Re: Partial electrical failure (DunReit)
And now it's burnt out teh cooling fan fuse... arg! why is it arbitrarily burning out fuses that weren't burned out 15 minutes ago?!
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From: Arlington, NoVA, USA
Re: Partial electrical failure (kazmans94cord)
Well, it's difficult when I don't have a test light... and have you ever looked at the electrical diagrams for a newer car? It's a nightmare.
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From: Miami, FL
Re: Partial electrical failure (kazmans94cord)
theres your problem right there. when you replace a fuse of lower amperage with a higher one there is too much power going through the circuit. you may have fried one. the purpose of the low amp fuses is because that is the max power thats supposed to go through there. by putting in the 30 amp fuse you let too much current through there than the circuit was meant to handle. thats why they tell you to replace a burnt fuse with one of equal or lower amperage. another reason may be a short somewhere in your wiring. recheck all of your wiring that you have done: stereo and any mods that had electrical wiringto do with it.
Hopefully you havent burned any circuits.
Hopefully you havent burned any circuits.
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From: Peoria, IL, USA
Re: Partial electrical failure (scrubachu)
theres your problem right there. when you replace a fuse of lower amperage with a higher one there is too much power going through the circuit. you may have fried one. the purpose of the low amp fuses is because that is the max power thats supposed to go through there. by putting in the 30 amp fuse you let too much current through there than the circuit was meant to handle. thats why they tell you to replace a burnt fuse with one of equal or lower amperage. another reason may be a short somewhere in your wiring. recheck all of your wiring that you have done: stereo and any mods that had electrical wiringto do with it.
Hopefully you havent burned any circuits.
Hopefully you havent burned any circuits.
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From: Arlington, NoVA, USA
Re: Partial electrical failure (niedejb)
Well, there's something wrong somewhere (perhaps a bad ground) since it's blowing a fuse... I need to investigate the wiring from the C254 terminal to the source... since my cooling fan fuse blew, it's possible that a bad ground caused the surge in the circuit to jump to an adjacent circuit...
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From: Arlington, NoVA, USA
Re: Partial electrical failure (DunReit)
To make things more wierd, the intermittent windshield wipers don't work, yet the other settings on the wipers do work... it's not the key-in timer b/c my dome light shuts off the same way it always has...
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From: Miami, FL
Re: Partial electrical failure (DunReit)
yes it should. when the fuse breaks, the circuit is cut off fom power cause power overload. higher fuse means more power allowed to go through. its like hooking up a 12 volt object to a wall jack. too much power went through and even the 30 amp blew. im sayin bad ground or exposed wire like SOHC. check the wiring by the ecu and behoind the stereo, those would be my first places to look
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From: Fort Walton Beach, FL, USA
Re: Partial electrical failure (scrubachu)
putting the higher amp fuse in there was a major risk to say the least. I have seen people do this and the wires have caught on fire literally from the over amperage
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From: Arlington, NoVA, USA
Re: Partial electrical failure (CmptchAV6)
I'm going to have to inspect the grounds under the hood... I doubt it's the wiring inside the car since the cooling fan fuse (under the hood) burned out as well...
