Concerning the main electrical system of a motor vehicle or internal combustion engine. Consider using [tag:electronics] for radios and other such systems. Uses the [tag:electric-vehicle] for questions about electrical powered vehicles and their unique systems.

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Installing a 3rd party radio in a VW Polo

I am finding it hard to understand why I need run a 12v wire as well as use a Quadlock to ISO converter. The current VW radio clearly gets power from its connector and is able to tell if the engine ...
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4answers
3k views

How to amplify car speakers without stereo?

I have a 1980 VW Dasher with its original speakers but no radio. It has an unusual (erroneous?) electrical configuration where most accessories (e.g. lights, cabin fan, etc) still run even with the ...
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1answer
27 views

2002 Toyota Tacoma multiple issues?

2002 Toyota Tacoma low beams quit working, door locks won't work, no radio, no cruise control what could be the problem? Have checked the fuses and there doesn't appear to be a problem with them. ...
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1answer
72 views

I hate thieves - Ideas on DIY deterrents

My girlfriends car, along with another one in the same parking lot were broken into last night. They took her radio surprisingly without damaging the dash. From the neighbor's car they stole ID's and ...
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1answer
33 views

How to repair and clean alternator [duplicate]

My car won't start and it's because power steering pump slings oil on it. I was told that I had to clean it to be able to have it charge. I need to know if I clean my alternator from all that sludge ...
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3answers
77 views

VW Golf electrics problem with door closed

I have a VW Golf 1.9 TDi 55 plate MK VI. When the door is CLOSED (with the ignition on) : The mirrors do not adjust, the windows do not open, the fuel flap does not open and the child door lock does ...
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1answer
28 views

Draw more current than its original ouput

I am have a battery capacity of 9 Amps 12 V. Factory electrical system of the bike is DC (horn, indicator, etc.) + AC (head light). Now I have changed the remaining AC to DC. (light system with ...
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1answer
20 views

Terracan 2.9 crdi 2004 won't start

Wile driving i activated the high beam (headlights) and the rpm-meter started flickering for a moment and then dropped down to 0. Stopped the car and shut of the engine for 10 min for other reasons. ...
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13 views

tap dash start ford falcon el 4.0 95

I tap the left side of my steering wheel lightly and turn the ignition to start my car what can I do
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1answer
25 views

2001 Nissan Altima won't start

We got this car a month back, and haven't driven it much because we needed to notarize it. So it's been sitting in our back yard for a month. Yesterday we tried to start it up, but it is making a ...
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1answer
11k views

Why would my electrical systems cut out when I brake?

So I told this little story to the dealership service department, and they were baffled. Never heard of anything like it in ten years, said they'd have to examine it very closely. Here's what ...
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1answer
2k views

My motorcycle won't start at all why?

Something is draining my battery and my bike won't start. If it's the relays which one is it? My motorcycle doesn't crank at all. it makes a buzzy noise when I press the start button. It sounds like ...
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2answers
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How to diagnose if sporadic turn signal functioning is signal flasher or signal combo switch?

Symptom: When activated by the turn signal combo switch, turn signal goes on for about 5-10 seconds, and then turns itself off. Turn signal combo switch remains in the on position, but the turn ...
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0answers
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Zontes please help lol [on hold]

Hi guys just wondering if you can help when I put my key it none of the electrics come on no lights no nothing but it kick starts first time and everything works lights and all just wondering is it ...
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1answer
55 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. ...
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1answer
33 views

2010 Chevy Cobalt will not turn over

I have a 2010 Chevy Cobalt. I drove the car shut the engine off, when I went to restart the car it did nothing. All of my dash lights worked and my radio would play, but the car wouldn't turn over. ...
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1answer
87 views

What is the best way to repair these motorbike wires?

2 of the wires on my motorbike were cut and used to hotwire it. It's been recovered and I need to permanently connect these back together. What would be the best and easiest way to do this? An ...
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1answer
27 views

Sudden loss of some electrics whilst driving

Strange sequence of events, hoping someone can figure it out with me. I was driving home and first noticed after 30 mins of driving the temperature was very, very low. It is winter here in Aus but ...
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1answer
76 views

1988 Prelude guages stop working when hot

My tach,temp guage and fuel guage work fine when car is cool but when the car gets hot ( just sitting parked motor not running ) all 3 guages quit working . Any ideas ? Would deeply appreciate any ...
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0answers
50 views

Won't Start, No Crank, Lights Inside Work, Key Issue, Electric?

Details Chevy Malibu 09 Low on coolant (still visible in the tank so not entirely out) Belts are fine-Never overheated. Timeline One day it didn't start (don't remember it cranking) but then it ...
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1answer
200 views

Are there any modern diesel engines that require electricity to continue running?

I was reading this question about an owner checking the alternator by disconnecting the battery, which is an easy way to validate on a gasoline engine. The single answer assumes that the OP is ...
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6answers
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2000 Jetta runs rough, shudders on cold start only on wet days.

This is an issue I've had off and on for, embarrassingly, at least a year: On misty or wet mornings, everything starts out fine but, a few minutes into the drive (like clockwork. I even know the ...
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3answers
547 views

Driving electric cars through large pools of water

The state of California is expected to be hit by a large storm in the coming days and there are frequently clogged drains in my town. I have an electric vehicle that seemed to handle driving through ...
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0answers
54 views

Sudden change of the odometer reading in Perodua viva elite

I have a Perodua Viva Elite auto gear car from December 2011. It was manufactured in 2011. The odometer reading the day before yesterday was 72000 but I noticed yesterday morning it reads near 61000. ...
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5answers
51k views

Car won't start or stay running after a jump

I have a 2004 Kia Spectra 1.8, I have replaced the spark plugs, the alternator, and my battery is only about two months old. The car will start after a jump but it has to sit for about 10 minutes ...
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1answer
135 views

Low beam not working in headlight

I have a 1999 Miata, i bought the car for 750$ as a project car. it had some body damage but i figured i would fix it. The car is mostly done now, but i have one major issue. The low beams in my ...
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1answer
63 views

2006 Fusion, unplugged blue plug behind glovebox, now one headlamp and brakelight not working

06 Fusion SE 2.3L. AC wasn't working so I took advice from this instructables article and this video to do a quick temporary fix. I attached a 47kOhm resistor to the purple and yellow wires (top 4th &...
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1answer
11k views

Will a BCM prevent a car from starting?

I've been dealing with an issue for over a year wherein my 2005 Pontiac Grand Prix starts sometimes and does not start at other times. I had the issue diagnosed last year by the GM dealership. They ...
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2answers
50 views

What could be causing battery drain on a 2009 Honda Pilot?

My sister has a 2009 Honda Pilot that's got some issues with the electrical system. The battery frequently drains overnight (every other day or so). When driving a lot (several hours or more) the ...
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1answer
94 views

Alternator isn't charging battery properly. Replace or swap regulator only?

I have a 2015 Honda Fit EX. On my dashboard, there is a small screen that has been displaying "CHECK CHARGE SYSTEM" and displaying warning lights (TPMS, power steering, and stability control). I ...
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1answer
50 views

1988 RX7 not turning over

While trying to start my RX7 all I hear is a click coming from the dash when I turn the key. When I stop turning the key to start it I hear another click coming from a relay above the visor located ...
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1answer
40 views

WV Golf IV '98 - Right side blinkers not working on signal

I own a used VW Golf IV, 98, 1.4. I am facing a really strange issue the last few days. When I turn my hazzards on, every bulb works well and on time. When I signal left it works too. The problem is ...
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1answer
71 views

1988 RX7 not starting, buzzing

I recently obtained an RX7 and was told it worked fine but would not start due to the clutch going out while it was sitting some wires near the alternator were chewed by rats too, so after the wires ...
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3answers
44 views

Electrical - Low beams out, high beams still work

I have a 2001 Mitsubishi Lancer CE, unfortunately both low beam headlights don't work. However, high beams and parking lights both work. I've checked the fuse, relay and bulb, all appear to be working....
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3answers
232 views

Boat Not Getting Power to the Starter Motor

Just rebuilt most of a 2 stroke jet boat. ( if you need / want any boat details, see: this thread ) First day the boat started fine, no problems, next day I tried again and the CDI fuse had blown ( ...
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1answer
93 views

Effects of shutting off Nissan altima (or any car) while in drive

Every now and then when I get home after a long day, I pull into my driveway and while the car is stopped (foot on the brake), I turn the vehicle off without putting the vehicle in "Park". Car is ...
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1answer
21 views

Troubleshooting wires and fusable links in '96 Dodge Dakota 4 cyl. 5 speed manual

On the AC compressor, what wire is hot? Black with white stripe or solid black?
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1answer
2k views

Where is the coolant fan relay on a 2001 Monte Carlo SS

My check engine light is on. Shop failed the car for NY state inspection. Says I have a bad coolant fan relay. Where would this relay be located?
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1answer
48 views

Power to seperate starter switch only when motor isn't running

I need a circuit to disengage power to the start switch which is seperate from key switch when engine has started so there is no chance of accidentally engaging the starter with the already operating ...
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2answers
498 views

Can I avoid buying a ridiculously expensive replacement starter motor?

My situation can be described with a photo: That's my starter motor, which doesn't appear to be in a healthy condition. What I would like to know is, can I avoid spending over $500 on a new one in ...
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2answers
95 views

Electrical issue in vehicle - fuel gauge drops to zero when horn is activated

Here is what I have been dealing with. Posted over on my vehicle specific board, but no one seems to have any idea. Instead of reposting everything hashed over there, I will post the original question ...
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3answers
3k views

1997 Honda Civic won't start; stuck in park

Last Sunday I was driving home and noticed my dash had no lights and my power windows would not roll up. As I pulled into the driveway to park I tried to put the car in reverse. As I did so the ...
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2answers
15k views

why doesn't my motorcycle power on?

I have a Suzuki sv 650 2007. My bike recently turned on head lamps, tail, and gauges. Now it won't power on at all, not even a jump start can turn the power on. What can I do to solve the cause? Does ...
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1answer
33 views

Light bar vs Car battery

I have a light bar that pulls close to 22 amps how long can I have it on and my jeep off without hurting my battery?
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1answer
86 views

No power to my 1988 LS650 Suzuki with new charged battery

I have a 1988 Suzuki LS650 Savage from someone who jumped it off with running car. Put a new battery in it and now I can't get any power. No lights or anything. What do I need to check?
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1answer
36 views

1999 Katana 750 will not start

Rode it today ran fine. Come back home and I stalled it. 20 minutes later I turn the key to ride it again and nothing. I have no lights of any sort. I did check the fuses and they seem ok. What else ...
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2answers
60 views

Semi-permanent power inverter

I'd like to install a semi-permanent 500 watt inverter connected to the car battery for greater power delivery. The battery is in the passenger area, so there's no need to run wiring through the ...
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2answers
73 views

Why do the running lights turn on when the car is off?

I have two questions and they may be related, but I'll pose the most important question first. A friend owns a 2006 Chevy Malibu. Recently the running lights began randomly turning on when the car was ...
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1answer
88 views

Diagnosing fuel pump relay on 2004 Acura TSX

My wife's '04 Acura TSX began having issues starting towards the end of last summer. It would turn over just fine, but took 5-10 seconds to actually start running. The problem was intermittent - some ...
5
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1answer
34 views

Low beams don't work but the high beams work in a 2002 Toyota Tacoma

I have a 2002 Toyota Tacoma Pre-Runner where my low beams don't work but my high beams do work. I've replaced the headlight bulbs and relay switch, and still the low beams don't work. Any ...