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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68 views

No power to instrument fuse

I have a 94 Oldsmobile Bravada and the digital dash quit working. I found that I do not have power to the instrument fuse but have power to all other fuses in the panel. I can not find an electrical ...
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0answers
323 views

Where is the “comfort relay” in a BMW 1992 325i AUTO?

Please advise where the Comfort Relay is positioned in my car which is right-hand drive. The problem is that the windows and sunroof do not open or close.
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0answers
52 views

Access OnStar Wires on 2012 Equinox

I've got a 2012 Equinox that I want to attach an inviscord to the Onstar wires, but I am not sure how to access the wires. There is a wide black plastic cover where the rear view mirror attaches to ...
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0answers
1k views

Mercedes Atego OBD2 live data codes

I have tried to connect an OBDII ELM327 adapter in Mercedes Atego. Somehow I managed to get it in that OBD2 connector. I can see that my adapter is receiving electricity. These are the PID's that I ...
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2answers
638 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 ...
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2answers
108 views

Turn lights are blinking at a different rate

I am rewriring my car with new harness and I noticed something strange. My left turn lights blink faster than my right turn lights. They are both routed through the same relay and I don't think they ...
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3answers
12k views

Can I charge a Car Battery with a Motorcycle charger?

Car battery to be charged is a DIN66 which I think is about 65ah. I have a Motorcycle charger which says it can be used on cars; it suits batteries from 4 ah to 40 ah. Does this mean that it can ...
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3answers
6k views

Radio Wiring diagrams and/or color codes?

I've got an older Nissan truck (1994) that did NOT come with a factory radio. A previous owner had an aftermarket style radio installed, and the installers used one of these universal radio ...
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2answers
547 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 ...
2
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1answer
461 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 ...
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3answers
326 views

Is my mechanic ripping me off?

My 2002 ford focus (built after may 23) died and the AAA and tow guy both said that it needs a new fuel pump. Anyway I went to the mechanic and he said it'll be 350 for the pump and 200 for labor. I ...
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2answers
102 views

How to run a 50 amps short term load off the car electrical circuit?

I window-shopped for a car air compressor and there's a variety of them with different performance levels. Low performance compressors (like 30 liters per minute) have a cigarette lighter connector, ...
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votes
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 ...
2
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2answers
83 views

Viable replacements for lead-acid batteries?

Given the state of battery technology, is it viable for either motorcycles or cars to replace the original spec 12V lead-acid battery with a different type of battery? My question comes about as I ...
2
votes
1answer
81 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. ...
2
votes
1answer
238 views

Negative-grounded vehicles: some switches on positive, some on negative, why?

As far as I can tell, on my van which is negative-grounded, all fuses are somewhere between the positive terminal and the load being protected by the fuse. However, some switches are on the positive, ...
2
votes
1answer
194 views

Car stalled and restarted after some minutes

I have a very old car which uses mechanical transmission (Maruti Zen) Recently while driving on the road, I switched off the engine because of heavy still traffic. I forgot to turn off the head ...
2
votes
2answers
36k views

Low beam headlights out, High beam working

The patient is a 1996 Chevrolet Caprice with dual-filament bulbs. Both filaments in both bulbs light up in high beam mode, but no filament on either bulb lights up in low beam mode. What could be ...
2
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1answer
685 views

1996 Chevy Tahoe Won't Start

My Tahoe won't turn over. There are no clicking sounds. Lights will turn on. Nothing happens when I turn the key.
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2answers
2k views

Aftermarket start-stop system

I am looking for an aftermarket device that turn off the engine when the car is in rest and turn on the engine when the throttle is pushed. Which are the producer? Where i can find it on internet?
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3answers
23k views

Can I disable antitheft (PATS) on 03 Mustang?

Just bought an 03 Mustang from an auction and took it on a trip. The anti-theft system kicked in and I had to disconnect/reconnect the battery to get it working again. That worked a few times and I ...
2
votes
2answers
1k views

What system should I inspect first for the following issues on a 2004 Chevy Aveo?

A 2004 Chevy aveo with around 78,000 miles has the following issues: The Daytime Running Light indicator (as well as the lights themselves) randomly turn on and off. This is a slow thing and has ...
2
votes
1answer
30 views

Will new 100 watt headlights be too much on battery?

I want to install these new powerful headlights but they use around 100 watts. I have a 12v 45Ah battery which gives me around 540wh. Now I know that's not even half but when you factor in all the ...
2
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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?
2
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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
75 views

Amplifier is causing battery drain

Okay I'm driving a 1998 Honda Civic EX and I have an audio system in my car that is about 7-8 years old now. I had done some work on one of the terminals on the subwoofers, and melted plastic in ...
2
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2answers
157 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 ...
2
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2answers
48 views

2006 Pontiac Solstice - Wipers turn on by themselves

Here's a new one: Three times in the past week, the wipers have randomly turned themselves on. Each time turning the switch on and back off has fixed the issue. I haven't seen anything else ...
2
votes
2answers
163 views

1987 Yamaha FZ700 headlights not working

I recently bought a 1987 Yamaha fz700, and the owner said the headlights didn't work, and I can't figure out what's wrong. We checked some of the wiring out, and the bulb connectors have no power ...
2
votes
1answer
245 views

Low beams don't work on VW Golf MK3

On my 1996 Golf MK3, the low beams stopped working. I checked the fuses, that's not it (swapped 1 & 2, low beams, for 11 & 12, high beams). I wiggled the ignition switch and the headlights ...
2
votes
2answers
434 views

What are the methods to improve headlights of a car?

I'd like to improve the headlight illumination on my Toyota Carina AT 150. It is equipped with square type 55W lamps, but it's difficult to drive in the city or rainy/misty conditions. What are my ...
2
votes
2answers
132 views

Getting power to phone kit by running a cable through the firewall

I am installing a phone kit in a Toyota Avensis '02. I am trying to get a cable through the firewall to the battery and I'm having difficulty. I saw someone on YouTube getting power from under the ...
2
votes
1answer
928 views

Series of troubling electrical problems in my '07 Mazda 3. Any ideas?

I'm having a series of what I will call electrical problems with my Mazda 3. I'm not sure if they are interrelated and wanted to get some advice or ideas from you guys. Apologies in advance for the ...
2
votes
1answer
476 views

Front grill electrical component near radiator

I have a 2008 Mazda 3, and unfortunately I ran over some road debris (probably a tire or something, I didn't get a good look at it). My local Mazda dealer checked it out and said there was nothing ...
2
votes
1answer
600 views

2004 Toyota Corolla breaker breaks when I use a power outlet

I have an 04 Corolla. If I plug anything into either of the 2 power outlets it destroys a breaker. I thought about replacing the power outlet, but since it happens to both outlets I think there's ...
2
votes
1answer
833 views

2002 Ford Focus CEL blinked for a minute and then turned off

I have a 2002 Ford Focus with around 100k miles on it. I just brought it back from the mechanic for a fuel pump replacement. As this question shows. Anyway I was driving around going uphill when I ...
2
votes
2answers
47 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 ...
2
votes
1answer
38 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 ...
2
votes
1answer
230 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
177 views

Which convenience features in a car affects fuel economy?

I understand that the A/C compressor runs with the engine belt, so it will always uses some HP when engaged, therefore it will have some effect on fuel consumption. What I want to know if there are ...
2
votes
2answers
38 views

Upsizing a hot rod cooling fan from 7a to 20a

12v car power supply with 160a alternator and 30a relay, will this system support upsizing the cooling fan from 7a to 20a?
2
votes
1answer
692 views

Chevy Malibu 2009 won't start

I have a 2009 Malibu, yesterday I was heading back from school, then I started hearing a bizare sound like a whining sound, 2 minutes afterwards the engine stopped. When I got off to check under the ...
2
votes
3answers
489 views

98 Tiburon won't start and doesn't make a noise

I have a 98 hyundai tiburon. recently the battery light went on when I was driving. the next day my girlfriend left the headlights on and the battery died. We tried to jump it with no luck. I got the ...
2
votes
1answer
4k views

2007 Jeep Commander left turn signal will not turn off

I made a left turn today and now my left turn signal will not turn off (i.e., the interior arrow is flashing and the exterior front/rear blinkers are flashing). Here is the current state of things: ...
2
votes
2answers
6k views

Newly self-installed stereo system quiet with poor, tinny sound quality

I recently bought a Pioneer stereo system (FH-X700BT) for my 2008 Hyundai Sonata. The Sonata still has its factory speakers. The factory stereo was working fine, I just wanted something other than a ...
2
votes
1answer
239 views

Opel Frontera Electrical Problem - can't access diagnostics

I have an Opel Frontera 1999 2.2 Diesel. It refused to turn over a couple of years ago and it's taken me this long to get to doing anything about it. I was advised that it was something wrong with the ...
2
votes
2answers
180 views

Flickering lights and volt light on 2004 PT Cruiser

My 2004 PT Cruiser just flashed the internal battery light. I was able to drive home, but I noticed that the LED lights on the clock were flickering. I played with the RPM of the motor a bit(manual ...
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2answers
3k views

2004 Kia sedona intermittently wont start

my 2004 kia Sedona intermittently refuses to start. I have light, radio, electric windows but just doesn't turn over at all. If I leave it a few hours and go back to it, it'll start first time as if ...
2
votes
3answers
2k views

2002 Hyundai Elantra power locks?

My friend just bought a 2002 Hyundai Elantra and neither of us can figure out how the door locks work. It doesn't have any separate lock/unlock button on the inside of the door like most vehicles have,...
2
votes
2answers
6k views

Car stereo lights dim/flicker

thank you for taking the time to read this. Last year I installed a car stereo head unit in my car. I did the installation myself rather than having it done professionally. I am no expert in that ...