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

learn more… | top users | synonyms

4
votes
3answers
2k views

Low beam headlights don't work, High beam headlights do

The vehicle is a 2003 Chevrolet Trailblazer. The low beams aren't working. High beams are. The fuse is perfectly fine (tested and swapped out). The bulbs are fine too. A mechanic told me it could be ...
4
votes
1answer
6k views

How should the lights for a trailer be hooked up?

I have a tent trailer and the lights don't work right. It has a 4 wire connector to my car but one of the wires on the trailer connector was worn out and probably not working. So I got a new 4 prong ...
4
votes
2answers
2k views

Possible short in reverse lights on 2003 Nissan Frontier Pickup Truck

When I engage reverse on the manual transmission of my 2003 Nissan Frontier pickup truck, the reverse lights tend to sporadically turn on and off. I'm trying to figure out what path to take to ...
4
votes
1answer
39 views

Alternative location for motorcycle ignition coils?

I recently replaced the ignition coils on my 81 Suzuki 450. The aftermarket coils are just large enough that the tank won't seat right, even after adjusting the bracket. Would there be any issue in ...
4
votes
1answer
61 views

Could 1.9 Nm be enough to accelerate 130kg electric go-kart?

I'll apologize in advance for a fuzzy question. My problem consists of two parts. For starters, I'm trying to buy a DC engine for learning purposes and most of them only specifies the watt (which I ...
4
votes
4answers
1k views

High Beam Indicator Problem

I have a situation where I'm doing wiring for the dashboard of a vehicle. For whatever reason, the turn signal/headlight switch on this vehicle outputs a 6 volt signal on the high beam wire when the ...
4
votes
2answers
200 views

Audi A6 : brighter reversing lights?

On my 2007 A6 the reversing lights are very feeble, enough to make it quite difficult to reverse in my own driveway in the dark. I understand that I can't simply use higher-wattage bulbs or LED ...
4
votes
2answers
5k views

How can I elegantly secure a USB charging cable to the dashboard?

In extension of this Q about the power outlet I have a related question about how to secure the USB charging cable that runs from the power plug in the cigarette lighter socket to the corner of the ...
4
votes
2answers
150 views

Intermittent stall at idle

I have a 98 Saturn sw2 with a recent problem. Two times now it has stalled while idling and when it doesn't stall it floats near 500 rpms (Usually 750 - 950). The first time, it would start and just ...
4
votes
2answers
3k views

Aux Audio Input for 2006 Honda Accord

I'd like to add an auxiliary audio input to my 2006 Honda Accord LX-SE: What parts do I need to purchase? Can someone with a rudimentary understanding of electronics perform the installation? What's ...
4
votes
1answer
38 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 ...
4
votes
1answer
371 views

2007 honda cr-v dead battery, electrical fuses blown

Honda CR-V 2007 I parked this car on Friday. It would not start on Sunday and the cd changer changed a bunch every time I tried and a few other dash lights came on. It was cold during the 2 days ...
4
votes
2answers
122 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 ...
4
votes
1answer
1k views

How to troubleshoot a fan that won't work unless it's on it's on the highest setting?

My car fan won't work unless it's on 4 (full power). I have 4 options of power for the fan 1 - 4 but nothing happens on options 1 - 3. I have taken the panel off and cleaned all the contacts for the ...
4
votes
1answer
1k views

Tail light is intermittently out on Dodge Caravan

I have a 2004 Dodge Grand Caravan. A couple of days ago, the right turn signal started flashing rapidly when turned on to indicate a burned out bulb. I checked and found the right tail light was ...
4
votes
2answers
2k views

What is the correct/factory wiring for a Suburban 1998 battery/alternator?

I have included a picture showing what I have now on this Suburban. Note that there is wiring not shown in the picture which is a second electrical connection to the positive side of the battery ...
4
votes
1answer
89 views

My drivers side window no longer closes with one press of the button 1

I share a similar plight with the guy before only difference is it's with an 04 Forester STi. I held the passenger front window switch up for a little too long next thing I know my driver side window ...
4
votes
1answer
246 views

What's the reason for a battery light coming on and becoming brighter as the engine revs higher?

The vehicle is a 1993 LandRover Discovery 3.5 V8. Today when I hopped in to drive home the battery light came on when I started up, and remained on. It gets brighter as the engine revs and just ...
4
votes
2answers
23k views

'01 Jeep Cherokee - Check Gauges light & low battery gauge

Bought my '01 Cherokee back in March & have had nothing but problems since; I've been slowly fixing them when I have the time/cash. However, this particular issue has me stumped (and it's happened ...
4
votes
1answer
38 views

Saturn Headlight Problem

I have a 2001 Saturn SL2 that is having a problem with one of its headlights. When I turn on the headlights, frequently one is not lighting. If I go to the front and give the lens a quick knock, it ...
4
votes
2answers
54 views

1998 BMW 318is excessive current draw - possible starter issue

My 1997 BMW 318is started making a whirring noise that varies with engine speed, and an electrical burning smell after driving, and the battery goes flat very quickly. I measured the current draw ...
4
votes
1answer
506 views

Why do the lights flicker when I accelerate?

I have a 2003 Ford Focus. Recently, I've noticed that when I accelerate (step on the gas), all the lights on the car flicker. This happens to both the dash lights in the car and the headlights ...
4
votes
1answer
615 views

Repair or replace frayed fuel injection wiring harness?

This is on a 2008 Chevy Impala, 3.5L V6, non-flexfuel. Recently got cylinder 1 misfire / ignition failure codes. An investigation revealed that mice had gotten into my garage, made themselves at ...
4
votes
2answers
473 views

2002 Saturn SL2 Stalls After Warmup No Spark

My SL2 stalls (it just cuts out, no warning) shortly after warmup (this all started right after I topped off the coolant after a low coolant light came on, although I don't know if they are related). ...
4
votes
1answer
105 views

01 Monte Carlo electrical gremlins

My wife has an 2001 Chevrolet Monte Carlo that sat for about 6 years before she got it 3 years ago. It’s having a few electrical problems. Temperature gauge doesn’t work. I replaced the sender with ...
4
votes
1answer
852 views

A/C electrical problem on 92 Civic

I've had intermittent A/C failure on my 92 Civic DX going on for a couple years now. It's clearly an electrical problem. Normally it's solvable by putting some pressure on the control panel, but ...
4
votes
1answer
723 views

1997 Geo Metro dies after driving for a short time. What next in diagnosing culprit

Back Story: I recently took my Geo Metro on a road trip. 2700 miles of road trip. The first 800 mile nothing happened. Then going up a hill it died, dropped from 75 mph to 55 mph then the engine ...
4
votes
1answer
191 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" ...
4
votes
1answer
588 views

Electrical issues: where are the grounds on a 1997 vw golf mk3 tdi

When I have the ignition switched on, if I press the brake pedal, or use the headlights, the foglight gets turned on. I think this is an earthing issues so I have checked the grounds in the two ...
4
votes
1answer
537 views

Vauxhall Vectra C Blower Motor Sqealing / Clunking

I have just replaced my Blower Motor Resistor as my fan wouldn't work on any setting other than 4 (in line with a previous post: How to troubleshoot a fan that won't work unless it's on ...
4
votes
1answer
392 views

Honda Prelude: digital fuel and temp gauges dimming and brightening repeatedly

I have noticed an annoying issue on my '94 (4th gen) Honda prelude. The digital petrol and temperature gauges appear very faint when starting the car. After about 5 mins they brighten again, only to ...
4
votes
1answer
788 views

Windshield wipers worked intermittently then quit altogether

The wipers on my 2000 Mazda Protege recently quit working. It wasn't an all-of-a-sudden thing, though. Every so often over the last few weeks they would stop for a few seconds, then start again. ...
4
votes
1answer
534 views

Misfiring Engine Hyundai Accent Executive

My Hyundai Accent Executive is 2001 model. Recently the engine started misfiring badly during idling with Air conditioner on. It is almost like the engine is going to turn off any moment. The ...
4
votes
1answer
90 views

Horn blows constantly and tail lights remain on

I was pulling up my drive this morning when my horn started blaring non-stop. I got out and pulled the horn relay to make it shut up. I tested the relay and determined that it was working fine, and ...
4
votes
1answer
57 views

Honda Accord 2000 V6, loses electrical although engine is still running - what could it be?

After driving about a mile with a cold engine, I lost power steering and all the dash lights came on (battery, oil, all the doors registered open, etc). I pulled off the road and turned the car off. I ...
3
votes
3answers
112 views

What are some typical maintenance things that every owner should do regularily?

Right now I just get a car wash every month, and my oil changed and whatever is included in that. Usually just a quick "inspection". Is there anything else I should be doing for my car? Or also, is ...
3
votes
1answer
86 views

Are there any modern diesel engines the 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 ...
3
votes
1answer
2k views

Battery dash light comes on when starting car then disappears while driving

2002 Honda Civic EX here. When I start my car, my battery dash light has been staying on usually until I get onto the highway, then it will turn off. If I hit a stop sign or red light, then it'll ...
3
votes
2answers
298 views

Writing CAN Messages

I want to know what should I write with the CAN ID to send it to ECU. I am using ELM327 and Raspberry Pi with all connections to OBD-ii. initially for sending general PIDs to the ECU through ELM327 ...
3
votes
2answers
680 views

Does length of jumper cable matter while jumpstarting a motorcycle from car battery as a booster?

I recently left my Harley Davidson 883 Superlow in ignition on for 8 hours, headlight drained all the battery. This was my first time jumpstart experiment. Had following few questions, happy to be ...
3
votes
3answers
206 views

possible alternator-battery mismatch if I replace the existing battery with a much higher CCA one?

I have a 2000 Audi A6 Avant 2.5 diesel whose current Audi battery (approx. 650 CCA) is dying. Am looking at an Exide X-Tra Plus at 900 CCA to replace it. However, should I be concerned that the ...
3
votes
3answers
65 views

How do I check that my battery receives enough power from generator?

I suspect that my battery does not receive enough power from the generator. How do I verify that? I know that involves a voltmeter, but what are the exact things I'm measuring and how? I have a Skoda ...
3
votes
1answer
152 views

98 Windstar: An 8x5x3 black plastic box fell off

When I got home from work yesterday and parked my '98 Ford Windstar next to the house, my wife pointed out that a 8"x5"x3" black plastic box was sitting at the end of the driveway, and a slightly ...
3
votes
2answers
5k views

Electrical problems due using battery charger as a jump starter

I have a 2003 honda civic, and the car battery went dead on me. I didn't have a jumper cable with me, but I had a car battery charger. So, I hooked it up to the battery and tried starting the car. ...
3
votes
3answers
312 views

How can I route power cables from my 2012 Kia Forte eco from the battery to the cabin?

I have a 2012 Kia Forte sedan with "eco" package. I'd like to mount my mobile amateur radio into the vehicle, however I'm having a hard time locating a grommet for passing power leads from the cabin ...
3
votes
3answers
3k views

Noise in stereo that changes pitch with engine RPM

This is a question of curiosity. I have a '98 Acura Integra, a cheap car stereo with a 3.5mm aux in, a cheap inverter and a smart phone. If I have the smart phone audio hooked up to the car stereo and ...
3
votes
5answers
4k views

2006 Kia Sedona intermittently not starting

What could be causing my (non-)starting issues? Occasionally (once every two weeks or so) when the keys are inserted and turned to the start position, nothing happens. No noise, no dome lights dimming ...
3
votes
1answer
175 views

89 jeep cherokee will run but when i turn it off and try to restart it the battery is dead

The battery is still good and the motor will keep running when you disconnect a terminal. Can my alternator be bad? If not I'm also thinking a dead short? What is the best way to find out?
3
votes
2answers
3k views

Could less than optimal battery charge prevent starter bendix drive from engaging flywheel?

With a less than optimal 12.2 volts at the battery terminals and the bendix drive at the starter failing to pop and engage the flywheel, would battery charge be a likely cause of such a failure? Or ...
3
votes
3answers
941 views

LED tail lights flashing at ultra high speed

I've just replaced the old tail lights on my 1993 Triton ute with LED ones. Now I have the issue where the indicators flash at such a high speed it may as well not be flashing at all. If I put the ...