Questions tagged [electrical]

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

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24 views

I have a 2008 Chevy Trailblazer, when I go over bumps my temp gauge drops to 40'C and my A/C goes warm

I have a 2008 Chevy Trailblazer 4x4, when I go over bumps my temp gauge drops to 40'C and my A/C goes warm air blowing. It's intermittent. Going over another bump will return it to normal. I took it ...
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My bike is dying on random

Okay so I’ve had this bike (2004 gs500) for roughly two weeks and it’s ran perfect. Today I was riding with perfect preformence when I throttled and noticed it waited a second before doing anything ( ...
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Dodge Grand Caravan Won't Turn Over

I have a Dodge Grand Caravan 2001 that was having running rough and the exhaust smelled like raw gas. I replaced some sensors and that didn't work so I decided to replace the ECU. I got a new ECU from ...
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65 views

In a moldy car with electrical problems, to protect the future technician, should the mold be cleaned before the electrical repairs are done?

I have a sedan that's been sitting in a parking spot since before Covid. It initially laid idle because of a battery drain. It killed 4 batteries in a year. Multiple service calls were unable to ...
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Chevrolet Matiz doesn't start first time in day

I have a 2008 Chevrolet Matiz car, 3-cylinder 0.8L engine with the following symptoms: Start hard the first start of the day (after 10-12 hours) then start each time from the first, if the interval ...
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Fuse for radio, 12v charger, internal lights 2006 vw LT35, where is it?

Fuse for radio, 12v charger, internal lights 2006 vw LT35, where is it? I can locate the fuse box on the driver's side seat, but this looks very different from Haynes Manual. It's a RHD. I cannot ...
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2012 VW Jetta SE battery cables hooked up wrong

my boyfriend hooked the jumper cables up backwards the electric systems lit up then went black and something started to smoke near the battery we have since had trouble with the battery keeping power ...
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28 views

I need to add an OBD-II based accessory to a OBD-port-less and ECU-less car

My guess is the accessory would work fine if only provided power (no need for it to receive diagnostics info, just to turn on to perform its function). Would it be possible to connect pins 16 and 4 to ...
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1answer
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Adding 12v anderson connector

I'm looking to add a 4awg cable from the battery up front to an anderson connector at the tail of the truck to provide additional power to my trailer. Normal power draw would be less than 50 amps. I ...
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My car wont start then a flame 🙃

Quick background info I have a 2010 lincoln mks , & it is push to start. I tried starting my car multiple times it wouldnt start, just clicking so i looked under the hood to look at my battery and ...
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Throttle Position Sensor Signals

I would like to study and discover more about the throttle position sensor that is installed in my car. The model of this tps sensor is called "cts 4089" and it has 6 pins. From what I read ...
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Van won't start, clicking sound

got a Toyota hiace from 98, we just accidentally caused a short by mis-connecting the batteries. Replaced one battery, both show a correct voltage, but the van won't start. Dashboard lights won't come ...
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How do I test the Door lock relay on a Dodge TIPM?

I have a 2011 Dodge Ram. The drivers door lock switch does not lock the doors. The passenger door lock switch will lock all doors, including the drivers. I replaced the drivers door switch with a new ...
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What is this electrical component circled in blue in this engine bay?

I was wondering what this component could be. i couldnt post full size picture since it was over 2mb but full picture also showed a part that looked similar to the part circled in blue. i think that ...
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1answer
164 views

Using OBD to control add-on lights

I have just purchased a 2021 Ram 1500 Bighorn and plan on adding side lights under running boards. These lights are led strips with amber for marker and turn, red for running lights and white for ...
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Suzuki SX4, P0134/ P0420, sensor or CPU?

So, my friend is having car trouble with their Suzuki SX4, 2007. I was told the car had some issue with the catalytic converter in the past. The mechanic told them it would cost $2000, but that it ...
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When I try starting my Honda it’s hestitant then it starts

I have a 2004 Honda Accord and when I go too start it, it doesn’t Just start right up like it stutters then starts. I took it too Autozone and had them check battery starter and alternator. They are ...
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What happens if the main battery gets connected backwards?

2008 Mitsubishi Nativa (Pajero?) now no power coming from alternator after my experienced mechanic hooked up the car's battery backwards. He saw the spark he said but didn't register as he was ...
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Air conditioner

I have a 2012 Ford Fusion. I just got my a/c recharge. The mechanic thought it was the compressor, but he put on a new fuse and it started to blow right out. But now, it blows out cold in one vent, ...
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25 views

Ford Focus DCT Acceptable Grounding

On a 2012 Ford Focus with the Dual Clutch Transmission, DCT, with a Fluke 75 Digital Volt Meter, battery disconnected, I initially read 2.6 ohms from the battery negative cable, past the negative ...
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25 views

2001 Toyota Highlander Limited DRL not working

I have tried the 7.5A fuse and the three relays without any success. What am I missing? What else could it be? The lightbulbs work. I’m out of ideas! They stopped working after a new battery was ...
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Saturn Aura Locking Issue

I have a 2008 Saturn Aura. I've recently run into an issue with my locking system. When the weather gets warmer, 3 out of 4 of my locks stop working. Sometimes it's all 4 locks that have the issue, ...
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GY6 scooter spark plug getting voltage, but no spark?

I have a gy6 scooter that's not getting any spark, but I've done troubleshooting on the whole system (except the stator) and I can't find anything wrong. Every part I've checked from the stator power ...
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1answer
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2007 Ford E350 electrical problem

My 12 passenger ford E350 2007 occasionally (random times while driving for random duration 5 -40 minutes) loses power to the: dashboard stero and windows. What can be wrong with my car? How do I ...
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GY6 with no spark

I have a GY6 chinese scooter with no spark. I went to get on it one morning and it wouldn't start, I assumed I needed to change the spark plug because I hadn't changed it for about a year. I put in a ...
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1answer
58 views

Something in car is interfering with iPhone GPS

This is going to sound ridiculous but there is no other explanation. I used phone GPS while driving in my car for the past 3 years. 3 different phones, that is, and they all worked fine. I was ...
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Remove Mood Lighting on 1994 Ford Econoline E150 Magnum van

I will be removing the Mood Lighting . Do I need to disconnect the battery for that? It is possible I might still use some of it and redirect it to my solar energy. I would appreciate any help I can ...
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Vehicle dies for a couple minutes when I try to start then turns back on

I have an 02 Chevy Trailblazer I went to start my vehicle up like normal before work. When it was in accessory it was fine but when I tried to turn it over, it all went black. There was no power at ...
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29 views

Blower motor resistor keeps blowing

I have a 2006 Jeep Liberty that has had blower problems for a while. It used to be that sometimes it wouldnt blow on any setting, and then randomly come on in a few minutes after I started driving. It ...
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48 views

I have a custom chopper motorcycle wiring issue

I have a custom chopper motorcycle. I have made a sequencing tail light system in the rear. The sequencing works fine until the brakes are applied. The brake lights causes the sequencing to pulse. I ...
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1answer
30 views

What is the name of a default closed switch?

I have a 2005 Ford Excursion. It has a parking sensor which beeps when it senses something close to the rear bumper. When pulling a trailer, it beeps every time I put it in reverse. I can turn it off, ...
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1answer
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How much electric power does my truck consume?

I have a 2011 Nissan Frontier Pro-4x. I want to get a general idea how much power I could draw from my alternator while driving. For that, I want to find out how much power my truck uses in the first ...
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Ride-On Mower only cranking once when starting

I have a Husqvarna TS 242 with a Briggs and Stratton 40N877-0016-G1 engine that I'm having some trouble with. My suspicion is something with the electricals - here's what I'm seeing. After a few weeks ...
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1answer
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Question about Ignition Systems ; The Amount of Contact Breaker Points inside the distributor

The distributor in Lamborghini Espada has 4 contact breaker points. Why is that? Couldnt a single point handle all 12 cylinders? I ve also heard they used twin points inside the distributors of some ...
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VW EOS ESC Error message

My VW 2015 EOS works great but since my last tire rotation, the ESC Stabilization Control Error appears while drive on dry roads at a constant speed. Engine slows, cannot accelerate. Must pull off ...
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1answer
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Can the OBD II used for emissions testing cause damage to engine or electrical system?

We recently took our 2016 Ford 10 cyl. (Motorhome) to our mechanic for oil change and check up, prior to big trip. Everything looked great and vehicle ran great before and after this visit. We then ...
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When my car warms up the dash lights dim badly, what could be the cause?

My son has a 2005 VW Jetta. It starts right up and drives good but when the car warms up the dash lights dim and it starts running differently. He is afraid to drive too far because once it left him ...
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2answers
49 views

Most Dash Lights (and Gauges) Turn on and off Periodically before Car Shuts Off Completely

Alright, I'll try to keep it snappy. 2005 Chevy Express 3500 4.8L V8. 130k miles. Most dash lights would turn on and gauges would go dead for a couple moments and then come back periodically. It's not ...
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1answer
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2013 impala brake lights

When I press my brake pedal when car is off the brake lights don’t come on. When I start the car the lights will come on when I hit the brake pedal. Is this normal or a problem I have never noticed ...
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Citroen c4picasso Automatic 2009 petrol

Brake lights stuck on , brake won’t go down , won’t start , changed brake light switch ,keeps coming up with different diagnostic troubles, wiped them clean , then different ones come up , taken ...
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1answer
58 views

1955 Chrysler No Crank No start

Hello everyone I have a 1955 Chrysler Windsor which does not run, the lights and horn work but when I crank the key the starter does NOT turn over but the lights do dim. I've replaced all the fuses ...
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1answer
27 views

Jeep Cherokee Electrical

I have a 1991 Jeep Cherokee Laredo 4x4. When im driving all my electrical stuff turns off but turn on right away but the engine keeps running. This only happens when im driving through rough terrain, ...
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2answers
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2012 Kia Forte Electrical? Power?

Audio cuts out when using turn signal or braking. Lights dim when using turn signal or braking. Headlights and interior lights have inconsistent brightness. A slow flicker. After parking and locking ...
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1answer
64 views

Headlights have to be switched off twice when vehicle isn't running for headlights to actually turn off

I have a 2006 Jeep Liberty with manual light switches. I noticed shortly after buying it several years ago that if I turn the car off before switching the headlights off, and then switch them off they ...
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3answers
92 views

Severe static shocks from car after driving

I know that you can get a static shock when exiting your car after driving for a while from the friction on the seat. However I do have my car for several years and since a week or so I am starting to ...
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1answer
70 views

What does the 'battery' light on the dashboard actually mean?

I know that when the battery symbol lights up on the dashboard it indicates a problem with the electrical system, which is commonly either an ageing battery or a broken alternator, but for the ...
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2answers
141 views

Toyota Tundra Brake Light Wiring

I recently got a cap for my 2012 Toyota Tundra and am wiring in the brake lights on it. I was planning on pulling off of the existing brake light but there are 3 wires going into it and only 2 going ...
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1answer
68 views

What does OBDII fault code P0120 really mean?

What does OBDII fault code P0120 mean? The device said: "TPS/Pedal Position Sensor A Circuit Malfunction". The problem is that TPS stands for: "Throttle-body Position Sensor, which sits ...
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1answer
45 views

Should I replace wiring harness? If yes, how to do it?

My Hyundai Tucson 2013's fog light is not working. Also a bulb in cabin which is supposed to stay steady is blinking. I suspect this could be because of the voltage drops and electrical faults. I ...
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Car not starting after week of sitting in cold temperatures

Three weeks ago I bought an '03 Honda Civic. It's been running well so far, but I let it sit outside without using it for a week and a half in 10 to -10 F temperatures. After this, the car wouldn't ...

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