About the main electric systems of the car. Consider a different tag for radios and other such systems.

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3
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1answer
2k 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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1answer
1k views

What is wrong with my 99 gsxr 600 when my regulator keeps burning out?

I recently had my clutch replaced and a new battery put in. Within a month my regulator/rectifier burnt out of it. So, I purchased a new one. After 2 weeks that one burned out also. I replaced the ...
1
vote
1answer
431 views

Honda Unicorn Electricals Problem due to water

I am using Honda CB Unicorn 150cc. Last day I had to ride my bike through water, after which none of the electricals were working. Only Head lamp will work while the engine is on. After when I ...
3
votes
2answers
2k 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 ...
2
votes
1answer
2k views

What might cause inconsistant ignition, an extemely loud bang but no visible damage?

I have an old 1993 Triton ute. It has a 4G54 carby engine. It's run as well as can be expected of an engine like that with nearly 400k on the clock. Just recently one day I jumped in to go for a ...
2
votes
1answer
122 views

Bounds and solution to electrical failure in a 2004 Grand Marquis

What follows is a simple problem with hopefully a simple solution. While mechanically-oriented, vehicle repair is not my specialty, so forgive me for any lapses in problem description and terminology. ...
3
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5answers
5k views

Keeping radio/stereo unit powered to save pre-set preferences?

In my previous cars I could save certain radio stations, volume levels, etc. on my stereo and they would stay saved (unless the battery went dead). I'm using the same stereo head unit in my latest ...
2
votes
1answer
98 views

Thieves tore out my ignition switch

I have a 2002 ford econoline van. They tore out the ignition switch and tried to steal it. I replaced the ignition switch but now it is like there is no power. I checked the regular fuses in the panel ...
1
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1answer
645 views

Blower resistor blowing on '02 Chrysler Voyager

We've got a 2002 Chrysler Voyager with something of an odd problem. The blower resistor likes to burn out. It's easy to replace, but after doing so, our vent speeds go out one by one, until all we ...
3
votes
1answer
1k views

Replacing Vauxhall Corsa C (2002) rear fog light

I need to replace the right rear fog light in a 2002 Vauxhall Corsa C; not just the bulb but the whole unit. I'm looking for instructions on how to replace the lamp preferably without removing the ...
2
votes
3answers
102 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 ...
8
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2answers
12k views

What is BCM(Body Control Module) in a car?

I own a Fiat Grande Punto. Recently I was told by the authorized auto workshop that the BCM in my car has failed and needs to be fixed. So i have two questions regarding that - What is a BCM and ...
2
votes
1answer
414 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 ...
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vote
2answers
115 views

Mazda Air Mass Meter - where can I buy one?

I have a 1993 Mazda 323 estate (GLXI 1.6l petrol). It's not been terribly reliable and has suffered from inconsistent idle - sometimes idling fast (~1500 rpm) and sometimes erratically and sometimes ...
0
votes
1answer
147 views

Connector for driver's side seat belt cable in KIA Soul

Make: KIA Model: Soul+ Year: 2012 There is a cable that runs from the dash, under the seat, to the driver's side seat belt buckle. Underneath the seat, there is an obscure wire-to-wire molex ...
2
votes
2answers
70 views

Turn Signal Malfunctioning

My left turn signal started malfunctioning the other day, here are the symptoms. left turn signal (on dashboard) clicks at roughly twice the rate as the right turn signal. rear turning light flashes ...
2
votes
3answers
295 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 ...
2
votes
2answers
83 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, ...
1
vote
1answer
273 views

Does anyone know of a commonly available DPDT or DPST relay? (For use as replacement starter relay)

I have a car (1971 Jaguar E-Type 6 cylinder) with a bad starter relay. The original relay is not available, and all of the specialty parts suppliers sell a generic replacement relay. I'd like to ...
1
vote
3answers
988 views

How do you test relays?

I have a Pontiac Grand Am. After getting a hose replaced, I noticed that my fans don't come on now. I checked the fuses and cooling fan #2's fuse is burnt out, which (I think) should be for AC only. ...
1
vote
1answer
543 views

Cruise Control and Brake Lights not Working

I recently fixed a problem where the cruise control and brake lights stopped working at the same time in my 2006 GMC Canyon. The question is not how to fix this, but how it broke to begin with. I ...
5
votes
2answers
2k views

Can an engine stop from a bad battery?

The car is a 2005 Toyota Corolla CE. Its engine is the 1ZZ-FE, a 1.8L straight four that runs on gas, not diesel. The alternator is stock, and tests out just fine on the multimeter in both voltage ...
2
votes
0answers
410 views

How do I fix an immobilizer problem on a 2006 Kia Sedona?

How do I fix a problem with my immobilizer? This is a follow up to this question: 2006 Kia Sedona intermittently not starting What parts (if any) do I need? What would be the best way to go about the ...
4
votes
1answer
205 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 ...
3
votes
3answers
2k 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 ...
2
votes
2answers
706 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 ...
3
votes
2answers
5k views

OBD-II reader/scan tool that can also diagnose air bag light

Is there an OBD-II reader/scan tool that can also diagnose air bag warning light? My 2004 Honda Element EX has a red air bag warning light that recently has turned on. The nearest Honda dealer wants ...
2
votes
2answers
91 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 ...
4
votes
4answers
5k views

What is the best overall ODB2 scan tool?

There are a number of different ODB2 scan tools out there, some PC based, some standalone units, some more for tuning and some more for diagnosing problems. What are the different features that these ...
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vote
1answer
2k views

Using an iPod / iPhone in a 2005 BMW 525i Sedan

I just purchased a BMW 525i (2005 model, automatic) and was wondering if this model supports an adapter like later models for an auxiliary or iPod cable integration? I did some Googling and found some ...
3
votes
2answers
515 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 ...
6
votes
3answers
5k views

What are the tradeoffs for positive vs. negative ground?

I just got a classic Ford 8N tractor running again. Someone trying to be helpful flipped the battery around, connecting negative to ground. This made the engine crank backwards! So I had spark, ...
3
votes
1answer
537 views

Battery replacement on 2001 Chevy Venture

I have a 2001 Venture that needs a battery replacement. Will disconnecting the battery activate the Theftlock system in my stereo? My impression is that the VIN is stored in flash memory, so a ...
2
votes
1answer
218 views

Power Inverters as Emergency Generators?

After being hit by Hurricane Irene last week, I happened to loose power for literally one week so rather than rely completely on batteries and being a nomad, I used my Cobra 400 watt power inverter ...
0
votes
1answer
64 views

What is you recommendation for a car antenna?

I recently bought a used car and it did not come with an antenna. There is a cap where one should be and a wire runs up to it. personlly I would like a short one (6" or less). What antenna would you ...
3
votes
3answers
180 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 ...
2
votes
2answers
244 views

What functions & features should I look for when buying a multimeter?

Going to be used for car maintenance/restoration work and around the house repairs.
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2answers
56 views

Left blinker quirky when braking

This is a bit of a strange problem but the left turn signal on my '98 Saturn SW2 is acting a bit funny. When braking the blinker will either simply not work or work very slowly. When not braking it ...
2
votes
3answers
5k 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 ...
3
votes
2answers
444 views

s60 won't start, no lights, nothing at all

I accidentally left my keys in ignition overnight - and now nothing. Have charged battery and tried spare key, but neither fixed the issue.
1
vote
1answer
874 views

reverse lights always on

I have an older 1993 Mitsubishi Triton ute. The issue is that the reverse lights are always on while the car is running regardless of gear position. The gearbox works, that is to say that the car ...
3
votes
1answer
363 views

2007 Nissan Maxima Windows and Sunroof are Unresponsive

All the windows will not go up or down including the sunroof. Everything else is working. The fuse under the hood looks ok. There no sign of it being bad. Can it still be the fuse and if not what else ...
1
vote
1answer
252 views

Concealing a radar detector [closed]

I've seen some guides online for hard-wiring a radar detector into the electrical system of the car via the moon-roof line or similar. But what about concealing the detector itself. I'd like to ...
2
votes
2answers
3k 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 ...
4
votes
2answers
133 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
1answer
510 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 ...
7
votes
1answer
215 views

Finding And Fixing A Short

Make: Chevy Model: Cavalier Year: 1993 (old I know) Symptoms Turn signal no longer works. The lights do not come on, and there is no "ticking" sound. New Fuse for signal blows as soon as the car ...
3
votes
2answers
3k 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 ...
5
votes
2answers
3k views

Manual horn switch

what are the pitfalls or things to look out for when manually wiring a switch from the battery to the horn? Some background: I just moved to texas where they require vehicle inspections. My horn ...
2
votes
2answers
250 views

Can I replace the glass mirror in my (wing) mirror?

A neighbour of mine hit my (wing) mirror with a sliotar and it's cracked/smashed. Can I replace just the glass (the actual mirror itself)? Preferably doing it myself. As oppposed to having to buy a ...