Questions tagged [electrical]

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

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21 views

Load resistor heat issue from front turn signal lights serving as parking lights at night

Thinking of switching all 4 turn signal lights to LED from halogen and I will more than likely need some resistors due to notorious hyperflash or LEDs with built-in resistor as I prefer not to splice ...
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38 views

12V 10A outlets: Slight smell of burnt copper at 8A. Is the outlet still safe now?

When I accidentally depleted our car battery, I charged it's battery from the inside outlets, using a 0-30V 0-10A bench power supply device. The car has 3 outlets. One individual outlet is rated for ...
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38 views

Electrical issue - Honda

A few things recently happened. About a week ago I drove through some flood water, probably high enough to out the exhaust system under water. There are also a few things I've noticed while at work ...
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41 views

Intermittent loss of electrical power on a Ford Mustang

This is a 1999 Ford Mustang GT 4.6. Electrical power completely shuts down and comes back on, the dashboard lights and gauges go crazy. I put in a new battery, alternator and negative cable and ...
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46 views

Rewiring an engine

I have a 1987 Ford Ranger with an LL23 engine in the garage. I've been able to short the starter to the battery and get a compression test done. Mechanically the engine is good. The problem is, ...
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37 views

Transistor as a switch?

I want to use transistor or the like as a switch to close and open a ciruit whose voltage is 12 volt DC. Also, the transistor under same 12 v DC source must be operable at max 0.03 amps or 30 mAmps to ...
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17 views

volkswagen passat 2002

I have a passat and the previous owner fitted a DEFA alarm system which is pretty useless. It appears to interfere with the central locking and wing mirror electric control. I have removed it and ...
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27 views

Ford mondeo mk3, obd not connecting to computer

I have an Ford mondeo mk3 where the air con isn't working and there is no voltage to the pressure sensors. So I was going to look for error codes. However when I connected the obd it can't connect to ...
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1answer
205 views

VW Golf Mk7 TSI Electronic Stabilty Control (ESC) error light on

I have a VW Golf Mk7 TSI Comfortline 1.4. My ESC error light is on, though I've had no recent work done on the car. I have taken the battery out and sent the car to a super service technician who ...
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37 views

Honda City S ivtec 2009 Electric Power Steering light coming up with Engine Check light

My Honda City S ivtec 2009 has a power steering issue When i start my Car there is no power steering But when the car starts to move in a speed of upto 20 kmpl the power steering starts automatically ...
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23 views

1997 Honda Civic DLC not communicating

I have a p28 ecu with a obd2 to obd1 jumper harness, i have no check engine lights but im trying to get my inspection but the DLC does not want to communicate, I checked the pins of the DLC and the ...
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25 views

After a fuse box replacement the car doesnt start

My ac was not working and I took the dealership and they told me the fuse box needs to change, so I got a fuse box and took the negative battery cable out and replaced the fuse box but my car doesn't ...
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14 views

Battery drain suspected from door locking system

I have a Mitsubishi L300 van 2005 and one of the doors is not closing properly, hence the light of "opened door" is constantly on. This drains my battery in two days, which I suspect that is way too ...
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17 views

Replacing a 1985 Fiero GT Tachometer

I am working on a 85 Fiero GT which has had its tachometer go bad. I have managed find the signal wire coming from the Ignition coil producing AC voltage bottoming out a 7v while idling, increasing ...
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1answer
43 views

Fuse box replacement - will it work?

As per the advice of my mechanic, I am replacing the engine fuse box of my 2011 Mazda 6 3.7L V6. I have ordered a fuse box from a donor vehicle - a 2011 Mazda 6 with a 2.5L 4-cyl engine. The only ...
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28 views

2015 Honda Accord Dashboard lights won't turn off after draining the battery

I'm a fairly new driver and I have zero knowledge of cars in general, today I made the mistake of sitting in my car with the ignition on but the motor not running, thus causing the battery to die. ...
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86 views

Tachometer/Speedometer drop to zero and engine wont accelerate

today my car had the following problem: I was driving with about 80 km/h (ca. 50 mph) when suddenly my Motor didn't react to the gas-penal anymore and I wasn't able to accelerate. The tachometer and ...
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18 views

Electrical wires worked with a melting connector but when I cut them and tested by twisting them together it wont work

So, like the title said I had a 3 wire connector plug which I assumed had wires grounding in it which was causing it to overheat and melt, when i clipped the wires and twisted them together to see if ...
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1answer
22 views

1986 G30 Motorhome

I just replaced my parking lights. (the ones on the top front of the motor home. I got three of them replaced and they were working. Then when I got to the fourth one my tail light fuse started ...
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2answers
23 views

Help!! Earthing an Engine Coil

30+years ago I ran a wire from the coil (can’t remember which HT/LT) via a on/off switch to a earthing point, effectively immobilising the vehicle. Q: is this still possible to do on modern day ...
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42 views

Why are dashboard lights sometimes delayed

After turning on the headlights during driving it sometimes takes a while for the dashboard and tail lights to come on. I tested the tail light fuse which was good. Noticed that when the dash and ...
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7 views

F150 Tachometer backlight always on

My 2013 Ford F150 somehow does not switch off completely. The tachometers used to stay on light blue, then for a while red and now bright blue. Looking on the net there seem to be people that fix it ...
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1answer
67 views

2011 Mazda 6 3.7L V6 - Intermittent no-crank after Injen SRI install

My 2011 Mazda 6 3.7L V6 does not always crank the first time, especially after sitting overnight or a few hours. The car seems to operate perfectly other than that. It's a push-to-start. Once I press ...
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13 views

Car alarm not chirping

I have a Prestige APS25e car alarm in my car and recently I had a mechanic service the car. Now the car alarm is acting in a mediocre way, sometimes it would self arm, other times it wont. Sometimes ...
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39 views

Relay coil resistance measurements?

My relay 5 pin has 12v 10 amps input rating. And, I measured its coil voltage with multimeter giving about 650 ohms. Now, I connect the relay to car battery 45 ah. Surprisingly, the current through 86 ...
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20 views

Trailer tail lights go dim with hazards on

I've wired up a 13 pin trailer plug to my 1996 Defender 90. When I connect a trailer board and I put the headlights on (tail lights come on) and put the hazard lights on, the tail lights go dimmer ...
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18 views

No start problem

I packed the car for about 4 to 5 weeks without driving it but it was still in good condition.so after that when I try to start the car it only cranked but won't run the engen until now I do not know ...
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15 views

Dodge Journey Speedometer Drop and Oil Light with Dinging

2010 Dodge Journey r/t 3.5 L Why does my speedometer drop and my oil warning light come on with the dinging?
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1answer
33 views

No electric power on my motorcycle

I bought a 2001 Yamaha roadmaster silverado 1600 yesterday. At the guys house it fired up fine. I went back a couple of hours later and bought it. I fired it up and drove it about 30 miles home. ...
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16 views

2010 Mazda CX-9 - Low voltage to high-mount LED 3rd brake light

2010 Mazda CX-9 failed inspection for a dead high-mount LED 3rd brake light. I bought a new light from the dealer - it doesn't work either. Checked voltage coming from the connector into the light - ...
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6 views

S550 Mustangs - route wire from fuse panel to center console?

Are there any tip and tricks to routing wire from the passenger footwell fuse panel and into the center console? I'm looking to add an accessory that would require a power cord to pop out right below ...
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25 views

Will a magnet mount affect the performance of a radar detector?

I am in the market for a Uniden R3 radar detector but I'm not really enthused by most of the mirror mounts out there. It distracts from my line of sight to have something up on my mirror like that so ...
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10 views

Trailer tail lights still on when ignition is off

After having attaching a trailer hitch to a Volvo V70 2005 the tail lights keep glowing even when ignition is off. Therefore I have two questions: Is it normal on some cars? If not any ideas what ...
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2answers
135 views

ABS and Brake light fault after battery disconnected

I bought a new battery that ran flat after two weeks. Took it back to the garage and they disconnected negative from my battery whilst the engine was running to check my alternator but now I have ...
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18 views

Nissan Micra 2001 start up problem. Just screeching

I find that in the morning when my car is cold and I try to start it. It doesn't make the turning over noise. It just screeches. I'm not sure how to describe it. Sorta like a belt or fan noise. I ...
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15 views

Honda cb 400 sf (nc31) ignition fail

The bike have new spark plugs, clean carbs, healthy battery, starting motor always cranks and working but SOMETIMES there is no ignition but when i push softly with 2nd gear even for 20 cm it starts ...
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13 views

Astra h 1.9 88kw 2006

I am having problems with Astra h 1.9 88kw 2006, it's constantly going in limp mode during driving, once I put it on diagnostics it's saying gas pedal, I change it and still have a problem, can ...
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56 views

Electrical Issue Mustang, Check charging system FUEL LEVEL LOW DTE ODO DATA ERR

So about two weeks ago I was driving my mustang (2005 V6 Convertible) when an a couple of strange things happened in the instrument cluster. The screen displayed the message "Check Charging System" ...
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8 views

2010 ford transit remote only works after being driven for a while

I have a 2010 Ford Transit it has a new key with a new battery. remote won't work of a morning but once driven for a while it will work. if not used for an hour or so remote will go flat again. any ...
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32 views

KTM electrical system fried

So a week ago I put in a LED bulb in my KTM 450 headlight. It turned on working fine, then everything just shut off. I took it to a dealership and they told me that you need a LED conversion kit for ...
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9 views

2014 Subaru Forester

My 2014 Subaru Forester is having bad audio connection issues. I successfully linked, via Bluetooth, to my iPhone 7+ but any time I give a command: Call Mom, assign contact, etc. it's as if the ...
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1answer
44 views

What's the function of the two trailer sockets?

Simple question folks. There are two trailer sockets on my Rangerover, one has a white cap, the other black. What is the difference and what are they for?
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2answers
58 views

2006 Chevy Impala dying while driving

I have a 2006 Chevy Impala LS (flex fuel) while I'm driving the dashboard sends off a warning of "reduced engine power" as my car loses power and I lose the ability to use my gas pedal. Meaning that ...
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53 views

Battery Charging Fault

Renault Grand Scenic 2010 MKIII (I believe). I've had this problem for 2 years now, I had battery replaced and had it tested several times but no one seems to find the issue. There is no clear ...
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13 views

How to replace a coil on my Vulcan s

Rode it in some heavy rain, now it starts for a minute then starts running like half poweruntil it dies Took the gas tank off and found the rubber boot for my electronics laid flat by previous owner. ...
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1answer
44 views

Car battery charger not working on one battery, but works on another

I'm using a friend's car battery charger on my 2016 Mazda 3, and the amperes meter alternates between max (8) and zero every 5 or 6 seconds. Normally it goes to about half way (3ish) and slowly ...
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18 views

Convertible's motor (likely) damaged

I own a 2013 Convertible Mustang. A couple of months ago, it had been raining heavily where I live. I started seeing water near the panel near the passenger seat whenever I'd drive. I was later told ...
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33 views

Car losing power on turning key, but returns shortly after

I drive a 2014 Chevy Spark. Before turning the key even to the accessory position everything works perfectly, as soon as I get to the ignition position all the electronics die and the motor doesn't ...
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1answer
47 views

**SOLVED** Right head lamp full beam not working

SOLVED Any help appreciated!! Both head lights are working as normal when on low beam. The moment I switch to high beam the left headlight goes to full and the right lamp goes out entirely. I've ...
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33 views

What is the best practice for securing screw terminals on amps and distribution blocks?

So I installed a small underseat subwoofer (pictured below) in my car. Everything was good, but when I pushed the sub under my seat the power wire was strained due to a tight squeeze between the two ...