Skip to main content

Questions tagged [fuse]

An expendable (single-use) electrical component that safeguards an electrical circuit by melting or otherwise interrupting the flow of current if the current exceeds the designed limit.

Filter by
Sorted by
Tagged with
22 votes
6 answers
9k views

Why don't cars have circuit breakers instead of fuses?

While there are exceptions the majority of cars use fuses instead of circuit breakers to protect electronics and I'm wondering why circuit breakers are not more widely used. Is it practicality, cost, ...
GdD's user avatar
  • 17.1k
20 votes
3 answers
15k views

Should I replace fuses as a part of regular maintenance?

I've been having a few problems that might be electrical in my car. Seeing as mechanics always want to replace parts first, I'm having to diagnose this problem myself. It seems like replacing all ...
Betsy Dupuis's user avatar
16 votes
4 answers
3k views

40amp protection on 25amp rated wiring?

Q - why is the circuit described below protected with a 40amp fuse when the cable to the motor is 2mm² (I cut a bit of cable out and measured strand thickness and quantity, 37 * .26mm = 1.98mm²) and ...
Nathan's user avatar
  • 163
14 votes
5 answers
1k views

How do you test analogue electrical circuits?

When trying to diagnose problems with conventional analogue electrical circuits, such as lights, speakers, heated rear windows, etc, as well as short-circuits and unexplained current draws, it can be ...
Nick C's user avatar
  • 28.8k
13 votes
3 answers
14k views

How to test a bolted-in heavy duty 50a / 80a / 100a fuse with a multimeter without removing it?

I want to check if this particular 50 amp fuse on a RAV4 (1998 first generation) is blown or not. Just looking, it's hard to tell because of what I assume are blue-green deposits on copper (this is ...
user56reinstatemonica8's user avatar
12 votes
7 answers
56k views

Fuse box above battery melting

I have a 2001 VW Beetle which has a nasty habit of melting the above battery high voltage fuse box. I've replaced it three times already and replaced the alternator as well, but I'm at a complete loss ...
apaul's user avatar
  • 173
12 votes
5 answers
81k views

How can a fuse drain a car battery?

My car battery drained itself after a week of not being used. I was researching how to identify the cause, and saw a comment under this article saying: What if I am not detecting a reading but the ...
user56reinstatemonica8's user avatar
11 votes
1 answer
12k views

How to remove the 50 amp, 80 amp and 100 amp fuses from the positive terminal of a RAV4?

I want to check the fuses at the positive battery connection of my 1998 (first generation) Toyota RAV4. Visually, the 80a and 100a look fine, but the 50a has blue deposits and I can't tell if it's ...
user56reinstatemonica8's user avatar
9 votes
1 answer
33k views

Indicators Not Working But Hazard Lights Working

Vehicle: Mitsubishi Pajero 1994 I have a 1994 Pajero and had a strange problem happen this morning, in the middle of driving the indicators strangely stopped working but when I pulled up the hazard ...
Chris Rutherfurd's user avatar
8 votes
4 answers
56k views

Preventing Car Theft by Removing Fuses

My car was recently stolen in the middle of the night, and I just bought a replacement. I'd like a simple, cheap way of disabling the vehicle, and I was thinking of doing something like just pulling ...
Robert S. Barnes's user avatar
7 votes
3 answers
55k views

Cigarette lighter fuse repeatedly blows

I have a 2000 Toyota Corolla. Recently, the fuse for the cigarette lighter blew when I put in a car charger. The fuse powers the cigarette lighter as well as the radio and I think the backlighting on ...
Daniel's user avatar
  • 151
7 votes
1 answer
4k views

Does a constant blown fuse always indicate a short?

My wife was driving our 96 Ford Windstar recently and she said right after she hit a bump in the road the ac stopped working and the instrument panel lights went out. I found the fuse from the wiring ...
James-Jesse Drinkard's user avatar
7 votes
1 answer
398 views

Seat heater fuse at 12V even when ignition is off?

I'm looking for a fuse in my 2015 Honda Odyssey that is 0v when ignition is off. I thought the passenger side seat heater should be the one but I tested 12 V when ignition is off. Is this normal?
L l's user avatar
  • 71
7 votes
1 answer
99 views

Radio and Charging Outlet Stopped Working

I have a 2000 Honda Accord V6 LX. The radio was working yesterday and the charging outlet was working earlier today, but now neither are. Did some research and I'm assuming it could be a blown fuse. ...
Christopher Chipps's user avatar
6 votes
6 answers
36k views

Brake lights, but no tail lights

I've got a 2001 WJ 4.0, The right brake light wasn't working, so I installed a new bulb, but I must have done something in the process because now all my brake lights work but I have no running lights....
Scott Hillson's user avatar
6 votes
1 answer
786 views

Golf 7 key stolen, which fuse to remove to disable car key reprogramming?

My Golf 7 key was stolen. I have reprogrammed my keys to disable the stolen one. The thief could still reprogram the stolen key as he can open the door using the hidden emergency door lock. Which fuse ...
oxygen's user avatar
  • 171
6 votes
1 answer
252 views

Any reason I couldn't replace my entire fuse box with self-resetting breakers?

I'm always rewiring something or upgrading a component here or there on my vehicle. I recently discovered self-resetting breakers that can replace standard automotive fuses. This seems like a silver ...
Wilco's user avatar
  • 161
6 votes
1 answer
10k views

A fuse slot has disappeared

My 2003 Opel Agila has recently had a catastrophic electrical problem, and my electric mirrors do not work anymore. The recovery guy pulled out and replaced a few fuses, and I drove home all fine. ...
George's user avatar
  • 6,545
6 votes
1 answer
3k views

BMW E90 pre facelift - REST heat button / fuse

In my E90 I have a REST button: It seems not to work, when I press it, the LED won't light and the heating won't work. Could this be a defect fuse? And if yes, which one (could it be 15 and/or 67)? ...
D. Müller's user avatar
6 votes
1 answer
231 views

How to Track Down an Electrical Short

In a previous question regarding my dashboard lights not working I found that the "tail" fuse would burn out immediately upon turning on the headlights. This is after someone did repairs to the horn, ...
Robert S. Barnes's user avatar
5 votes
5 answers
4k views

Could corroded or incorrectly soldered battery teminals cause parasitic drain?

One of my friends has a 2007 Lincoln MKX that's been having some electrical issues lately, the battery drains to dead overnight. It's been looked at by several people (including dealership), the ...
krb686's user avatar
  • 153
5 votes
3 answers
11k views

Fault find blown cigarette lighter fuse

I have a 2005 ford focus mk2, nothing custom, nothing modified, all stock. The cigertte lighter has never worked so I thought it was about time I attempted to fix this. I removed the fuse (20amp) ...
Jamie_lee's user avatar
  • 153
5 votes
1 answer
23k views

Fuse box location for 2006 Renault Scenic

I've have a 2006 Renault Scenic 1.6 Liter. I can't seem to find where the fuse box is located as it's not where it says it is in the handbook. The cigarette lighter fuse has blown but cant find the ...
Clare 's user avatar
  • 51
5 votes
2 answers
3k views

1996 Toyota Camry unlocks and locks itself

my 96 Camry started locking and unlocking itself sometimes while driving and sometimes when not driving I will go to get into my unlocked car just to find it lock. It didn't really bother me til last ...
Lisa Kay's user avatar
5 votes
2 answers
572 views

Multimedia system fuse detach

I have a problem in the multimedia system in my car. Whenever I leave the car off for two days (like the weekends for example), the multimedia system drains the battery and, subsequently, I have ...
M.M's user avatar
  • 281
5 votes
1 answer
1k views

ECM Fuse Blown what to test next

Recently I was on the highway and suddenly my car broke down and it was cranking and all but not starting so I knew some fuse has blown. I removed the indicator fuse and used it for fuse which gave ...
Shobin P's user avatar
  • 8,936
5 votes
2 answers
16k views

Could a fuse be responsible for my VW Jetta not shifting while in drive?

Issue with my VW Jetta (2001) Automatic transmission, gasoline engine My tail lights were out because of a missing fuse. So in the dark I looked to find a good one to replace it with (of the ones ...
Yasmine's user avatar
  • 51
5 votes
2 answers
709 views

1993 Honda Civic keeps blowing the 50 amp fuse under the hood

I replaced the ignition switch first, since in my Haynes book, it is what is directly connected to the fuse. The car works fine for a day then blows the fuse again.
Dave's user avatar
  • 51
4 votes
1 answer
142 views

Wiper fluid sprayer no longer works on Nissan Sunny 1997. Could it be a blown fuse?

When I try to activate the wiper fluid spray on the front windscreen of my car, the sprayer pump no longer activates (the wipers do though, after a short delay). It's quite a noisy pump, so I'd hear ...
Highly Irregular's user avatar
4 votes
1 answer
547 views

Dodge 2006 Grand Caravan fuse F6

I have a 2006 Dodge Grand Caravan. I'm currently troubleshooting an issue with it not starting. As I was checking the fuses I came across fuse F6. According to the manual it is "12 Volt Out Ignition ...
Tobias's user avatar
  • 143
4 votes
1 answer
3k views

A back door power window on a 2012 Subaru Forester not rolling up

On our 2012 Subaru Forester, the back window doesn't roll up anymore. Neither the button on the driver's control switch, nor on the door itself has any effect. There's no response to the button and we ...
Wynne's user avatar
  • 141
4 votes
1 answer
838 views

Wiring Harness / Fuse Panel Repair

I have a 2006 Dodge Magnum and a friend of mine was changing the starter. Forgot to unhook the battery. And when the hot wire on starter grounded out it Melted the Negative battery cable until it ...
Big Al Ruby Newbie's user avatar
4 votes
2 answers
5k views

Jetta turns off immediately after starting

So I parked my Jetta ('06 2.5) 2 nights ago, when I went to start it yesterday morning, the starter seems to work fine- turns over, then instead of idling down, it turns off. Must have tried it 5 ...
therealsix's user avatar
4 votes
2 answers
31k views

Why does my ALT fuse keep blowing?

After grounding out my alternator lead battery wire, I had to replace the 120 amp fuse that connects to the alternator. After replacing the fuse the car started up fine but upon driving home and ...
Nathaniel Davidson's user avatar
4 votes
1 answer
2k views

How long should fusible links be?

I've installed a 12" fusible link as a replacement for a fusible link on the line that charges the battery from the alternator. I showed the OEM part to the guy at the parts store and he gave me a 12" ...
jonathanbell's user avatar
4 votes
3 answers
26k views

What's the correct fusing for a headlight relay?

Summary of the situation: I have a 1975 Ford truck that suffered from the "Ford flashing headlight problem". The factory wiring uses 18ga wires over a very long path and through an under-rated ...
Jay Bazuzi's user avatar
  • 2,437
4 votes
0 answers
716 views

Toyota Celica ST185 problem, doesn't start [closed]

Hello i have a problem i own a Toyota Celica ST185 Carlos Sainz Limited Edition. (btw. English is not my national language so sorry for eventual errors). The problem is that car has problems with ...
Kamil's user avatar
  • 41
3 votes
2 answers
975 views

I have a distribution block buried under my center console. Would getting 12v from that line vs directly from the battery present any fire hazard?

My car has an unfortunate lack of always-on 12v power points -- something I'd like to remedy. I want to add a new powerpoint in my center console hooked directly to an always on source, eg: the ...
Sidney's user avatar
  • 1,090
3 votes
2 answers
1k views

Lost electricity to cab and Engine won't turn over

My '94 mazda b4000 recently lost electricity to the cab and the engine won't turn over. I will get in, the seatbelt beeping will start, then that will stop. I will put the key in the ignition and ...
Chris's user avatar
  • 237
3 votes
1 answer
329 views

Power window switches stopped working 04 Chevy venture

I have a 04 Chevy venture. One day as I was rolling up my driver and passenger window from my driver side switch the driver window went all the way up but passenger stopped like 3 inches from closed. ...
Adam Hal's user avatar
  • 115
3 votes
3 answers
2k views

Connecting Fuse Tap to another Fuse location

This question is similar to can i split off another circuit from fuse box to run power to cigarette lighter?, however I want to know the mechanics of mismatching amperage when it comes to fuse tapping:...
Moshe's user avatar
  • 153
3 votes
1 answer
5k views

How to diagnose blown tail lamp fuse

Last night, the passenger-side tail-light on my step-daughter's 2004 Mitsubishi Lancer ES went out. After determining that the bulb was OK, we looked in the fuse box, and saw that one of the two 7.5 ...
Cognitive Hazard's user avatar
3 votes
1 answer
21k views

Toyota Tacoma 2007 fuse diagram

I am having bad luck searching online to find a concise fuse diagram for my Tacoma. I am a little frustrated with the abbreviations that are on the diagram on the box cover. In particular, I need to ...
amphibient's user avatar
  • 6,663
3 votes
1 answer
3k views

Given a fuse panel, which way should a fuse tap be facing?

I'm hardwiring my dashcam into my vehicle after getting sick of the power cable dangling down the center. I have everything run, but want to ensure that I am using the fuse tap (pictured below) ...
Sidney's user avatar
  • 1,090
3 votes
1 answer
2k views

Need urgent help - car cut out and instruments frozen and will not start

I have just broken down. I am safe. My car has suddenly cut out and my instruments are frozen. The car will turn over but it refuses to start. My fuel gauge is stuck as well. My engine is cold so I do ...
George's user avatar
  • 6,545
3 votes
4 answers
811 views

Replacing a boat's blown CDI fuse

Just rebuilt most of a 2 stroke jet boat. (if you need / want any boat details, see: this thread) Yesterday, she fired right up no problem, today she won't even turn over. After some basic ...
Calvin's user avatar
  • 489
3 votes
1 answer
333 views

Fuse will not stay in slot

I have a 2001 Ford expedition the Eddie Bauer edition four wheel drive the fuse for my power brakes is really loose and won't stay in the slot I've been having brake problems and I was it was ...
Kimberly's user avatar
3 votes
1 answer
812 views

Mercedes - What is this type of fuse?

The fuse in the picture seems to have a grounding cable: What is it called and can I purchase from other than Mercedes retail e.g. eBay? Note: I know it is housing a standard 15A fuse, but can I ...
faisalk's user avatar
  • 33
3 votes
1 answer
894 views

Blown fuse on K1 GSXR 600. Fuse replaced, but still no power

I have a GSXR 600, and the live side of a circuit touched the frame and blew a 30A fuse. I changed the fuse and now I have no power. Does any one now why? Thanks
Carl's user avatar
  • 31
3 votes
3 answers
1k views

Startup current DC motor - Fuse?

In my boat I have a 2.2 kW starter motor, last week the starter motor shorted and melted one of the cable lugs. The starter motor is connected directly to the battery without fuse, so now I want to ...
BufferOverflow's user avatar