Audio fuse power wire blown, suggestions?

[Didderson]

Hey everyone, when I bought my car back in April the 10amp radio fuse wiring was blown. Probably due to a bad radio install from the last guy GRRRR.

Anyway, when replacing the fuse, our circuit(s) still don't recieve power, so this was blown before the fuse... power wire is shot probably. I should also note when I put power to this fuse earlier in the year the wipers would go on when the car was off at random times I'll get a new timing control unit because I think it probably took a hit when this wiring was overloaded, speak up if you don't think i need to.

I want to run one of the 10gage power seatbelt constant power wires to the beginning of this fuse and nix the old power input for this fuse location.

I'll still be using the 10A fuse, but i'd like to have my wiper timing, clock, dome light work again, then I can install map lights as well .

Let me know if this is a bad idea, or what I should try to do to figure out where this wiring was burned up... at least its only for this circuit.

For referance, my blown wiring/ fuse diagram is on page 5, fuse R on the PDF file found here:http://www.nicoclub.com/FSM/24...2.pdf

Winter = less sun... and the dome light kinda needs to work now lol.Checked the dome light wiring today. runs up the roof just fine no problems.Feel free to move this mods if i'm wrong.
Modified by Didderson at 11:09 PM 11/23/2009

[OutToWinPAHC]

I looked at those prints, and then I looked at the real FSM which some say is less detailed, but I prefer that one. I

Also when you put the 10A fuse in did it blow immediately, or is the circuit just dead? Its the ignition power to the circuit, check power at the line side of the fuse box. If it is not there you will also not have hazard lamps.

The crappy part is those prints are not correct. If you look at the relays, they show ground, coil power, and two loads, but they don't show where the power being switched on via the relay comes from. Its not even on the relay according to the print.

From what I gather i sounds like you replaced the fuse, the fuse is still good, but the circuit is still dead. I would check the accessory relays for power and check the other fuses as well. Perhaps a relay is no good and not switching on, or the ignition switch is not sending a good contact closure to that point.

[OutToWinPAHC]

Check to make sure the 10A relay left side, 4th from the bottom (10A) is good too. It appears that this may power Accessory relay 1 which is the one I am questioning.

Did you happen to shot gun it an pull and test all fuses?

[Didderson]

Hey man thanks for the help. You are correct my hazards never worked either. I used a jumper wire from the cig fuse to that fuse to pass inspection, but Mrgreeneyes made me take it out.

The circuit is dead, you are correct in that assumption. All of my fuses are fine inside the cabin, but this accessory relay? My turn signal/hazard relay works, just the hazards dont work because the switch doesn't get power.

I was using that wiring diagram because I'm home for thanksgiving and left my external harddrive at the aptment.. with all my nissan fsm's inside lol.

I will bust out the multimeter tomorrow/today and check the fuses you suggested. Maybe the accesory relay that you're talking about is under the hood or maybe I'll find some under the dash I haven't given it a good look in awhile way up there. Hopefully it's the relay man, didn't know about those.

[OutToWinPAHC]

Yeah the accessory 1 relay is either not getting power, not closing, or the coil is open. I would first pull every damn fuse 1 by one and check them, then I would pull the relay and check the fuse sock for power on the pins with the key in the accessory position. There should be power to the coil and to one the load pins.

[Didderson]

ok well the 4th from the bottom fuse you're talking about gets power and is not blown, but the pin shows signs of overheating the plastic on the right side lol.

The bottom relay on the back of the fuse panel (the blue one?) is the accessory relay? I'm testing the pins for it now, replacing it with another blue relay in a few just to test

[Didderson]

ok the coil gets 12v. pins 1 and 2 on the blue relay. One pin on the relay switch gets power, other is ground with 1ohm resistance to firewall ground. Nothing wrong here... wtf!

Replaced the blue relay, nothing happened, nothing fixed. all fuses still ok.

Lmk, bbl

edit: maybe i'm checking the wrong relay. it could be the black round one above this blue one. there are 4 relays back there and the fsm doesn't help much with telling me which is which.


Modified by Didderson at 12:28 PM 11/24/2009

[Didderson]

the fuse with the burnt pin could cause the whole thing not to work? should i just cut the wires behind it and make my own fuse holder for them? the wiring is in tact back there.

i disconnected the battery since i pulled the dash harness plug off, i didnt want to f*** anything up. I will have to hook it back together and test it.

The little blue wire back there w/ the silver paint on it is the burnt fuse exit power wire, the large blue wire w/ red on it is the power input for that burnt fuse pin.

I need to punch s***

[OutToWinPAHC]

I don't know where the accessory relay is located, but it feeds the fuse that you originally replace via a white wire, it also feeds the hazards.

I would replace the fuse socket on the burnout out one. Did you check the under the hood relay and fuses too?

[Didderson]

yeah i checked under the hood and those fuses are ok. It's always been like this since I got the car so Idk man. both the audio and room lamp fuses get 12 power and a nice ground wire at the fuse box, but when i assess the dome light wiring all my power wires have grounded out somehow. The one more than the other but they're all somehow along the way... screwed up or burnt i assume and touching ground.

Since the power is still reaching the burnt pins for those fuses I won't be replacing those terminals or making new fuses. I'll just live with it yet again or until I have more time to think about it. I kinda have to drive my car.

Idk. If it's working fine with power at the fuse and it grounds out how come my battery never drains... I'm so confused I should just pull the dash off but I don't have time so fugly wiring wins. for now.

If I knew how to run my own wiring so the dome light would function with the doors opening I would but I don't lol.edit: shouldn't be a surprise but the hatch light has never worked either.

alright i'll wait n see your response til i quit lol. but the accesory relay is fine i know which one it is now.

Let's just say the big fat power wires go in to the box with 12v, and then the little wires coming out of the fuse spots for both resistors, room lamp and audio, are grounded... yeah. so I have to re wire.

Modified by Didderson at 1:39 PM 11/24/2009
Modified by Didderson at 2:28 PM 11/24/2009

[mrgreeneyes]

the dome lights/clock/acc relay all get feeds from the "room lamp" fuse.

check that too

[Didderson]

that room lamp fuse gets a 12v on the large wire i think its white, and comes out a red/blackstripe wire that's like 14gage. The outgoing wire has little resistance to ground... yeah

[OutToWinPAHC]

Not good, probably nicked to ground.