Concerning the main electrical system of a motor vehicle or internal combustion engine. Consider a different tag for radios and other such systems.

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3
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0answers
44 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 ...
3
votes
2answers
1k views

8th Gen Honda - No Start, No Crank (down the rabbit hole)

This one should be fun for any Honda aficionados out there. I have a 2007 Honda Civic. Some days it does not start or crank; seems related to the temperature. When the car starts, it runs fine and ...
2
votes
2answers
84 views

Subaru Forester XT 2002 driver power window malfunctioning

My driver side power window does not go down automatically but will go down if you keep the switch depressed. On the other hand the up function only work by continuously pulling and releasing the ...
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vote
1answer
47 views

How to wire trailer brake to 2014 Ford Focus ST

I am in the process of wiring in a universal trailer light controller into my 2014 Focus ST. In doing so, I've run into a very strange issue which is just beyond my electrical knowledge and I'm ...
2
votes
0answers
30 views

loss of gauges on a 2003 Ford Escape

My son has a 2003 Ford Escape V6, that will all of a sudden have a loss of all gauges while he is driving and then they will come right back up with no loss of power. There has been times he has ...
4
votes
1answer
5k views

When I set the air flow to Defrost, it turns on the A/C?

On a 2001 Honda Civic. Having the temp dial to HOT. When I turn the air flow dial from FRONT to Defrost (windshield), it turns on the A/C button and the A/C motor kicks in also. It just started doing ...
4
votes
6answers
18k views

Charger doesn't stay put in cigarette lighter outlet

The cigarette lighter outlet was never designed to be an electrical outlet the way it's commonly used today. Even so, I've yet to find a plug for charging USB devices that fits and doesn't fall out. ...
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1answer
1k views

requirements upgrading of headlamp from 35/35w to 60/55w on bullet 350 uce

I own a Royal Enfield Bullet (std) 350cc 2013 uce model. The bike is fitted with a 35/35w HS1 PX43t halogen bulb. I want to replace it with a 60/55w halogen H4 bulb. Earlier I had installed the ...
4
votes
1answer
27 views

Have a 2000 Jeep XJ Cherokee Sport with Electrical issues

I have replaced computer, starter, alternator and battery twice in the last 2 years. The other day when I turned the key the lights cut off and no attempt to start. I removed battery connections and ...
0
votes
1answer
67 views

1996 Ford Explorer Speedometer and Shifting issues, O/D light flashing

My 1996 Ford Explorer began having issues at the end of a moderately long drive home while going approximately 60 miles per hour (not sure if related; I drive that speed often). The speedometer ...
3
votes
0answers
55 views

Wire front camera+sensors+display on SINGLE Ignition switched 12V wire

I want to install front parking sensors & camera (+display). So I have: Kit of 4 sensors + controller Camera Display Basically I know how to install & wire them, the thing I don't sure is: ...
4
votes
2answers
1k views

When reconnecting a battery, why connect the positive first? [duplicate]

When reconnecting a battery, why is it recommended to connect the positive lead first, and the negative lead last? What difference does it make if they are connected in the opposite order?
3
votes
1answer
62 views

Brake light connector drops to 0v when bulb is in, 12v without bulb

I'm stuck with a basic electric problem, on my honda cb500. The rear light bulb is a twin-filament for position/brake, 12v 5/21w. It's brand new and tested. The battery has 11.9v. On the rear light ...
3
votes
0answers
27 views

2009 Toyota Camry's brand new OEM power window master switch won't control the drivers window

Why would the driver's side window operate perfect with the original master switch but not work when I install a new power window master switch? I purchased 2 new aftermarket power window master ...
2
votes
1answer
31 views

Odd Dashboard Cluster and Control Behavior

Car: 2005 Dodge Grand Caravan Problematic behavior About this time last year is when this all started. It first surfaced in that when I went to startup the car it started but after about a second ...
2
votes
1answer
43 views

positive ground / neg. ground

With a/c current in a home rather than a vehicle, I don't think one would ever get a positive ground. Electricity always flow from the positive to the negative from what I have been learning about a/c ...
1
vote
1answer
64 views

Dodge Caravan headlights; 1 on with running lights, other on with headlights

I have a 2002 Dodge Caravan. When the running lights are on, one of the headlights is on. When I turn the headlights on, they switch; the one that was on with the running lights turns off, and the ...
0
votes
1answer
58 views

Starter or Electrical?

My 2007 Mustang GT makes funny noise when starting, and lately disconnects my Clock and radio. Would that mean that I need a new starter or do I have electrical problems?
15
votes
8answers
42k views

Battery drains by itself when vehicle is parked (parasitic draw)

A 1998 Jeep Grand Cherokee has gone through 3 batteries in the last 3 months. While they have all been replaced by warranties, it'd be nice to get the problem solved permanently. I've tested the ...
2
votes
1answer
101 views

2006 Solstice - CEL, no DTC, won't crank

Drove the car to work yesterday, made a few stops along the way with no issues. When I got out of the office, the car would no longer crank. I have a CEL, but no DTC (checked with HP Tuners). No ...
2
votes
1answer
46 views

electric windows broken

Can anyone help just got home and have gone to do my electric windows up and non of them will go up I had an issue with the passenger side switch not doing the window up but would do it down but now ...
6
votes
2answers
7k views

How do you remove or even get to the car battery on a 2012 Honda Odyssey?

Summary How do you get to the battery on a 2012 Honda Odyssey, given that it is blocked by some type of intake tube**? **Edit: this used to say exhaust but I changed it to intake tube, given ...
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vote
2answers
106 views

Is it ok to start the car with my GPS, cell phone, etc. plugged into the 12V port?

I remembered reading somewhere that we shouldn't start our cars with devices (GPS, cell phone, video game device, etc.) plugged into the cigarette lighter port. This is because when we start our car, ...
3
votes
0answers
39 views

Highest Fan Speed on AC/Heater Blower no longer works.

I've found a couple of posts here about blower fans that only operate on high speed, but the issue I'm having is the opposite. All of the fan speeds work except for the highest speed (really the only ...
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vote
1answer
115 views

Mazda 323P,Electrical circuit of engine control

For me is necessary the electric diagram of engine control Z5 and the procedure regulation of throttle position sensor.
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2answers
253 views

Interpreting ABS/DSC fault code

I have an ABS, DSC and handbrake warning light (the latter telling me it's likely from one of the rear wheels) on my BMW E46 320d from 2001. The warning used to be intermittent (it would go away, then ...
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vote
1answer
53 views

Does fire damage the electrics of a vehicle?

I have a bike but the question is also for a car of my neighbor. Both are parked in the garage where, sadly, some moron proved his moronity by doing something moronic, which caused a fire to flame. ...
3
votes
2answers
666 views

How to simulate that automatic-engine stop feature?

I have a brand new Honda Vezel (Japanese market only). It has this fanciful but useless and nuisance feature that shuts down the engine when I come to a stop and automatically restarts the engine ...
3
votes
1answer
31 views

Utility trailer lights issue

My small utility trailer has sit here for more than a year. Now I found its lights don't work anymore. I used my multimeter to test the four wire harness and find the following: Connect any other ...
1
vote
1answer
40 views

I have a 1993 GMC sierra 1500 and I have some questions about the grounding

When we bought the truck the original battery was grounded to the alternator and my dad told me I should remove the ground and put it to the frame. Well after we did that all of my gauges started ...
2
votes
1answer
31 views

1999 Yamaha 80hp Outboard Electrical Problem (Rectifier Overheating)

I recently purchased a pontoon boat and on day #3 my motor died, I'm hoping to get some help from the community with correctly diagnosing and fixing the problem. The motor - 1999 Yamaha 80hp four ...
2
votes
3answers
194 views

Pontiac Sunfire mysteriously won't start

So, here's the deal: -No lights, no noise, no clicking. -Battery voltage reads fine on multimeter. Terminals are very clean and not corroded. -But it won't jump start. -Headlights turn on. -Fuses are ...
5
votes
4answers
340 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 ...
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vote
2answers
51 views

2003 Jeep Liberty 3.7 v6 misfire

I have a misfire on all 3 cylinders 1, 3 & 5, all on the same side of motor. It seems more likely to be an electrical problem than coil packs since all are on same side. Is this a problem anyone ...
3
votes
0answers
54 views

Wrongly plugged battery terminals

I inter-switched my battery wires, positive to negative. Now the car moves but does not accelerate with the pedal to the floor. What have I done to the car? The car is a Toyota land cruiser v8 2006. ...
2
votes
1answer
34 views

Automotive electrical question

I would like to hook up a under hood lamp to my Cadillac Escalade. A TSB (Technical Service Bulliten) from Cadillac says to never connect accessories to the vehicles wiring without using a diode to ...
3
votes
0answers
206 views

Car Stereo and separate clock keep resetting when car is turned off

Car Stereo and separate clock keep resetting when car is turned off. I bought recently a 2005 Kia Spectra. Car had several previous owners. Stereo is aftermarket pioneer. The stock clock in the car ...
3
votes
1answer
43 views

CanBus - monitoring

My Volvo (2002) uses CANBus to monitor various lamps (I assume its current that's monitored). I intend to splice into one of the headlamps and one of the sidelamps and use those live feeds to dim ...
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vote
0answers
34 views

Merdeces stalls after 30sec-1min, and battery warning light is on [duplicate]

I've got an old but low mileage Mercedes and This problem puzzles me. The car stalls after a short time(30 seconds to 1 minute) after start up and the battery warning light on the dash lights up. I ...
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0answers
16 views

Automatic A/C recirculation problem [closed]

I have a Toyota 2014 4-Runner limited and I have a problem where the recirculation button will automatically turn off. It works fine when it's on, but is there a way to turn off the auto turn off?
3
votes
1answer
47 views

High idle, not shifting gears - 1995 Mercury Mystique

My friend has a 1995 Mercury Mystique that was suffering from low idle problems (stalling out at stoplights, etc). He replaced the throttle position sensor, and after that the low idle problem was ...
3
votes
2answers
522 views

Will an auxiliary battery hurt a vehicle's alternator?

I am going to be road tripping and living out of my SUV for a while. I need a way to power a tiny portable cooler/fridge 24/7 and would like to be able to power my cell phone, laptop, and maybe a few ...
3
votes
4answers
3k views

Alternative reverse light switch

I am about to take me ute to get a "safety" certificate so that I can get it registered (QLD, Australia) and I have one issue left that is still a possible problem. The switch that operates the ...
1
vote
1answer
119 views

Car radio stopped working

Hi I'm 16 years old and have just bought my first car. It's a 2001 Mazda protoge. Today while I was driving I plugged in a USB charger for my phone and the radio shut off. Now the radio won't turn on ...
1
vote
1answer
26 views

Low idle and tacho twitching after electrical cut out

The car is a 93 VW Cabriolet (Mk1 Golf/Rabbit). I was parked with the engine on lowering the hydro/electric roof when the engine and power cut out. I couldn't restart the car so checked the battery ...
5
votes
4answers
1k views

How does a lightbulb with two filaments know which one to light up?

I need to replace the taillight/brake light on my car, and it's a bulb with two filaments (known as 12V P21/5W - see pic) My car has two taillights on each side. A standard 5W bulb for the top half, ...
3
votes
3answers
4k views

Should only the left “Rear Fog Light” actually light up in a pair?

On a 2003 Saab 9-5 Aero, only the left rear fog light lights up. The right side has a bulb but when I switch the bulbs, the left still is the only side that lights up. I thought it might be a wiring ...
3
votes
1answer
56 views

Fluctuating amp meter on 1948 automobile

On an old auto 6 volt (generator/regulator) system, what causes the ammeter to fluctuate between zero and -35 amps? Seems acceptable at idle but fluctuates on the discharge side when driving. Will ...
2
votes
2answers
300 views

What's wrong if I replace a signal light bulb, but it still acts as if it's burnt out?

I hit the ditch the other day and got towed out. There was no physical damage as far as I can tell, but whenever I indicated right, it would blink fast as if a bulb was burned out. I replaced the ...
2
votes
1answer
425 views

Daughter's 2005 Nissan Sentra 1.8 SE - No Low Beams - High Beams Fine

Daughter was driving home last night from work and noticed "it was very dark" on the way. Turns out low beams won't come on at all. High beams, parking, tail, turn signal and flashers all fine... just ...