room fuse blowing short somewhere.... HELP!!
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room fuse blowing short somewhere.... HELP!!
hey everyone. i have an '05 RX8. i got the car about 10 months ago and havent had any problems with it until now. i will tell u whats wrong and if anyone had this problem also please let me know cuz i dont know what to do.
here is the problem....
i started my car and it started perfectly like always. then i look at my gauges and see that my check engine light is on. i pull over again and look at my radio and thats not working either. no electrical components work on the inside of the car. i get home real quick and check fuses. and the ROOM FUSE is blown. i was like ok this is the problem. i put in new fuse and that blows also..... there is a short happening somewhere and have no idea where. i took out my radio and is still blowing the fuse. when i shut the car off my gauges stop in the place they were. and when i turn the key to the on position all gauges rest themselves and go back to normal.
if anyone has any suggestions please let me know. i would really appreciate any help. thank you to anyone in advance.
here is the problem....
i started my car and it started perfectly like always. then i look at my gauges and see that my check engine light is on. i pull over again and look at my radio and thats not working either. no electrical components work on the inside of the car. i get home real quick and check fuses. and the ROOM FUSE is blown. i was like ok this is the problem. i put in new fuse and that blows also..... there is a short happening somewhere and have no idea where. i took out my radio and is still blowing the fuse. when i shut the car off my gauges stop in the place they were. and when i turn the key to the on position all gauges rest themselves and go back to normal.
if anyone has any suggestions please let me know. i would really appreciate any help. thank you to anyone in advance.
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the cigarette light lines r all good and still working. the one in front and in the middle still work. so thats not it. i will be connecting to a scan tool later today. the check engine light is on so i hope that will tell me whats wrong. i will keep everyone updated on what the promlem is.
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ok so i pluged in the scan tool. the is no comunication it the comp on the car. there is no power going to there. i am at a stand still. have no idea what to do. please if anyone knows anything please help.
#8
Certified Mazda Tech
most common room fuse problem is the visor like socket7 said. If your visor isnt broken tho i doubt thats the problem.
The reason you have no connection at the OBD port is because the room fuse provides power to the OBD connector, your CEL is most likely saying something to the effect of failure at comm. port.
The only way to find a short is with a multimeter realistically. Tracing shorts sucks.
My first guess would definitely be in the wiring of your radio/metra kit. Even with it unplugged a short in the wiring won't be effected, it'll still be shorting plugged in or not. Plus its the only mod you did, the stock wiring doesn't tend to have these problems when left alone.
kevin.
The reason you have no connection at the OBD port is because the room fuse provides power to the OBD connector, your CEL is most likely saying something to the effect of failure at comm. port.
The only way to find a short is with a multimeter realistically. Tracing shorts sucks.
My first guess would definitely be in the wiring of your radio/metra kit. Even with it unplugged a short in the wiring won't be effected, it'll still be shorting plugged in or not. Plus its the only mod you did, the stock wiring doesn't tend to have these problems when left alone.
kevin.
#9
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I saw an excellent device for tracing shorts when I had an issue a while back .
It was basically a row of lights on a board . You connect the two leads from the lights to either side of the fuse that keeps blowing . If it is a constant short the lights will come on all the time - if it is intermittant they only come on when the short occurs .
Now you go around the car fiddling with stuff trying to get the lights to either come on or go off .
In this way you can track down the problem very quickly - and you don't keep blowing fuses doing it ....
It was basically a row of lights on a board . You connect the two leads from the lights to either side of the fuse that keeps blowing . If it is a constant short the lights will come on all the time - if it is intermittant they only come on when the short occurs .
Now you go around the car fiddling with stuff trying to get the lights to either come on or go off .
In this way you can track down the problem very quickly - and you don't keep blowing fuses doing it ....
#10
Certified Mazda Tech
I saw an excellent device for tracing shorts when I had an issue a while back .
It was basically a row of lights on a board . You connect the two leads from the lights to either side of the fuse that keeps blowing . If it is a constant short the lights will come on all the time - if it is intermittant they only come on when the short occurs .
Now you go around the car fiddling with stuff trying to get the lights to either come on or go off .
In this way you can track down the problem very quickly - and you don't keep blowing fuses doing it ....
It was basically a row of lights on a board . You connect the two leads from the lights to either side of the fuse that keeps blowing . If it is a constant short the lights will come on all the time - if it is intermittant they only come on when the short occurs .
Now you go around the car fiddling with stuff trying to get the lights to either come on or go off .
In this way you can track down the problem very quickly - and you don't keep blowing fuses doing it ....
kevin.
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thanks everyone for ur help. i started following the wire that goes from the fuse to all the parts. and somehow it fixed itself. theres no more short in the car. the fuse doesnt blow anymore and everything back to normal. idk what happen there. but if it happens again i will let everyone know. thanks again for everyone help
#12
Certified Mazda Tech
thanks everyone for ur help. i started following the wire that goes from the fuse to all the parts. and somehow it fixed itself. theres no more short in the car. the fuse doesnt blow anymore and everything back to normal. idk what happen there. but if it happens again i will let everyone know. thanks again for everyone help
kevin.
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well everyone. the problem is fixed. permanently. haha just like socket7 said.... it was a broken wire in the sun visor. there was no problems and then i used the visor and it shorted. so took it apart and fixed the problem. its all good now. and to teknics no more fire hazard and no "BOOM" lol
Thanks again to everyone for ur help. beats goin to the stealership.
Thanks again to everyone for ur help. beats goin to the stealership.
#14
Certified Mazda Tech
well everyone. the problem is fixed. permanently. haha just like socket7 said.... it was a broken wire in the sun visor. there was no problems and then i used the visor and it shorted. so took it apart and fixed the problem. its all good now. and to teknics no more fire hazard and no "BOOM" lol
Thanks again to everyone for ur help. beats goin to the stealership.
Thanks again to everyone for ur help. beats goin to the stealership.
kevin.
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it wasnt in the visor itself. there is a connector for the wires. and just behind the connector on the car side is where the wires were a lil bit cut and touching the body of the car which started shorting everything out.
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kevin.
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#19
Short.
So I had a similar issue. I blew the room fuse. Its 15, I put a new one in and it blew right away with the car off. After I thought I'd put a 20 in. Around me seatbelt started smoking bad. Not sure if it caught on fire or.. what should i do next?
#21
You gonna eat that?
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You CAN start a fire.
#22
Registered
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The electrical components around the seatbelt the are on the Room fuse (as I recall) are the electric seat motors and airbags. I wouldn't mess with either. When you say seatbelt area, what do you mean exactly? There are other components under the center console and some wiring. I'd disconnect the battery and look for the source of the smoke. The interior is pretty easy to take apart. Just don't turn it on again until you know what's smoking.
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