Is there a fuse inline between the battery and the starter?

matthewmcdill · 06-29-2008, 09:55 PM

And if so where the eff is it?

My car died after trying to install some Hella fogs and I think I may have tripped this fuse. No power to anything in the car but the battery is fine. Any help would be appreciated.

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MasterKwan · 06-29-2008, 10:08 PM

Electical work with no wiring diagram? Not so smart.

1) Battery goes right to starter, no fuse.

2) There is a 120 amp fuse, probably in the underhood fuse box that comes off the battery. It powers much of the car. There's another line in parallel to that 120 amp circuit that powers some other parts of the car.

Yeah, 120 amp fuse is SBF-1.

matthewmcdill · 06-29-2008, 10:20 PM

ok, so it'd be inside the main fuse/relay box?

MasterKwan · 06-29-2008, 10:24 PM

There's multiple fuse boxes. This fuse is in the one under the hood. It's probably not cheap if it's blown.

Haelan · 06-30-2008, 12:46 AM

Quote:

Originally Posted by MasterKwan

1) Battery goes right to starter, no fuse.

Looking at the electrical schematic, SBF-1 is in series with SBF-4. These two provide power to the ignition switch and from there to the starter solenoid.

In parallel to those two is SBF-5, which provides power to the fuel pump control module, injectors, and a host of other sensors.

If you blew a 120A fuse you might have a dead short somewhere--I'd start ohming things out with the battery disconnected before you pop in a new fuse, start the car, and your battery explodes.

Edit: starter solenoid is fused--not the starter's dc motor.

MasterKwan · 06-30-2008, 12:55 AM

Look at page WI-111. If you look at your battery, there's a fat wire coming off the battery which goes directly to the starter and a skinny wire that goes to the under-hood fuse box. I do agree that, you can have power to the starter and the car still won't start. To test it, apply 12 volts directly to the skinny wire that goes to the solenoid. The skinny wire is what sends power to SB1.

Without knowing what's blown, it might be hard to trouble-shoot. I'd probably look at what circuits you tried to tie into and work backwards. As Haelan points out, any of the smaller fuses related to starting could be blown and there's nothing wrong with the 120 amp fuse.

matthewmcdill · 06-30-2008, 05:12 PM

I checked all of the fuses. Even the 120amp ones. Nothings blown. But I still have no power to ANYTHING!!!

03WRX-WRB · 06-30-2008, 05:52 PM

theres got to be something blown if you dont have any power to stuff or your not making a good connection someplace else

did you actually test all of the fuses ?
did you test the battery make sure it still good?

need to check eveything

MasterKwan · 06-30-2008, 05:52 PM

Then you have a bad ground.

How exactly are you testing whether you have power to a circuit? A light or a meter? What makes you think the battery's good?

Do you know how to troubleshoot electical problems?

matthewmcdill · 06-30-2008, 06:39 PM

Quote:

Originally Posted by MasterKwan

Then you have a bad ground.

How exactly are you testing whether you have power to a circuit? A light or a meter? What makes you think the battery's good?

Do you know how to troubleshoot electical problems?

I tested the battery (pos to neg) and got a signal. I tested from the battery to the alternator and got nothing. I am using a pretty good electrical meter fyi.

The fuses were tested visually but NOTHING works. Not just a couple of things.

Haelan · 06-30-2008, 06:52 PM

A 'signal'? What is the DC VOLTAGE of the battery?

MasterKwan · 06-30-2008, 07:29 PM

Battery connects directly to the alternator through the 120 amp fuse. I think it sounds more and more like you have a bad ground.

What's the model and brand of the meter?

1) Make sure the meter is set to DC volts. AC won't show anything. Black probe wire to common, red probe to V or OHM input on the meter. DO NOT use the current (AMP) inputs for this testing. AMP connections act like a dead short. You will blow fuses if you use the amp connectors.

2) Connect the red probe to positive, black probe to negative and you should see at least 12 volts. If you have 12 volts, go to step 3. If you don't have 12 volts, disconnect the battery cables and try again across the battery. Still no 12 volts? Dead battery.

3) Push the black probe to the ground on the battery. Press the red probe to the large ALT wire. What do you see?

06-29-2008, 09:55 PM	#1
matthewmcdill Scooby Specialist Member#: 161012 Join Date: Oct 2007 Chapter/Region: South East Location: Greenwood, SC Vehicle: '07 FXT Sports OBP '92 MR2 green?, '71 240Z	Is there a fuse inline between the battery and the starter? And if so where the eff is it? My car died after trying to install some Hella fogs and I think I may have tripped this fuse. No power to anything in the car but the battery is fine. Any help would be appreciated. * Registered users of the site do not see these ads.

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06-29-2008, 10:08 PM	#2
MasterKwan Scooby Guru Member#: 98961 Join Date: Oct 2005 Chapter/Region: MAIC Location: NOVA Vehicle: 2003 WRX Black	Electical work with no wiring diagram? Not so smart. 1) Battery goes right to starter, no fuse. 2) There is a 120 amp fuse, probably in the underhood fuse box that comes off the battery. It powers much of the car. There's another line in parallel to that 120 amp circuit that powers some other parts of the car. Yeah, 120 amp fuse is SBF-1.

06-29-2008, 10:20 PM	#3
matthewmcdill Scooby Specialist Member#: 161012 Join Date: Oct 2007 Chapter/Region: South East Location: Greenwood, SC Vehicle: '07 FXT Sports OBP '92 MR2 green?, '71 240Z	ok, so it'd be inside the main fuse/relay box?

06-29-2008, 10:24 PM	#4
MasterKwan Scooby Guru Member#: 98961 Join Date: Oct 2005 Chapter/Region: MAIC Location: NOVA Vehicle: 2003 WRX Black	There's multiple fuse boxes. This fuse is in the one under the hood. It's probably not cheap if it's blown.

06-30-2008, 12:55 AM	#6
MasterKwan Scooby Guru Member#: 98961 Join Date: Oct 2005 Chapter/Region: MAIC Location: NOVA Vehicle: 2003 WRX Black	Look at page WI-111. If you look at your battery, there's a fat wire coming off the battery which goes directly to the starter and a skinny wire that goes to the under-hood fuse box. I do agree that, you can have power to the starter and the car still won't start. To test it, apply 12 volts directly to the skinny wire that goes to the solenoid. The skinny wire is what sends power to SB1. Without knowing what's blown, it might be hard to trouble-shoot. I'd probably look at what circuits you tried to tie into and work backwards. As Haelan points out, any of the smaller fuses related to starting could be blown and there's nothing wrong with the 120 amp fuse.

06-30-2008, 05:12 PM	#7
matthewmcdill Scooby Specialist Member#: 161012 Join Date: Oct 2007 Chapter/Region: South East Location: Greenwood, SC Vehicle: '07 FXT Sports OBP '92 MR2 green?, '71 240Z	I checked all of the fuses. Even the 120amp ones. Nothings blown. But I still have no power to ANYTHING!!!

06-30-2008, 05:52 PM	#8
03WRX-WRB Scooby Specialist Member#: 167879 Join Date: Dec 2007 Chapter/Region: RMIC Location: severance, Colorado Vehicle: 2013 xv crosstrek orange	theres got to be something blown if you dont have any power to stuff or your not making a good connection someplace else did you actually test all of the fuses ? did you test the battery make sure it still good? need to check eveything

06-30-2008, 06:52 PM	#11
Haelan Scooby Specialist Member#: 151045 Join Date: Jun 2007 Location: Pennsylvania	A 'signal'? What is the DC VOLTAGE of the battery?

06-30-2008, 07:29 PM	#12
MasterKwan Scooby Guru Member#: 98961 Join Date: Oct 2005 Chapter/Region: MAIC Location: NOVA Vehicle: 2003 WRX Black	Battery connects directly to the alternator through the 120 amp fuse. I think it sounds more and more like you have a bad ground. What's the model and brand of the meter? 1) Make sure the meter is set to DC volts. AC won't show anything. Black probe wire to common, red probe to V or OHM input on the meter. DO NOT use the current (AMP) inputs for this testing. AMP connections act like a dead short. You will blow fuses if you use the amp connectors. 2) Connect the red probe to positive, black probe to negative and you should see at least 12 volts. If you have 12 volts, go to step 3. If you don't have 12 volts, disconnect the battery cables and try again across the battery. Still no 12 volts? Dead battery. 3) Push the black probe to the ground on the battery. Press the red probe to the large ALT wire. What do you see?