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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41 views

Need help with my 2006 Saab 9-7x

My 2006 Saab 97x starts then stalls. I plugged in the OBDII reader and one of the codes is P0601 (Internal Control Module Memory Check Sum Error). How do I fix this?
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2007 Impala lights not come on

I have 2007 Impala. We crunk it one morning and it just cut off. Then it wouldn't crank and none of the lights inside or radio display would come on. Starter is good battery is good and fuses look ...
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Town and country 2008

My car won't start, I checked everything and still won't start. When I checked the fuses . The ignition fuse does not get any power. What else can I do?
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65 views

2004 Toyota Corolla No Crank No Start

Some recent history for this vehicle: The battery had stopped charging. Alternator bench test passed. Battery bench test passed, but "in late stage of life". Reinstalling the original alternator ...
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1answer
77 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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70 views

Why can't I get a spark?

I have an early 70's Honda SL125 engine and I'm trying to wire it up so that it can run without the battery. I found this guide http://waynescyclegarage.mysite.com/custom.html and I've followed it and ...
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423 views

2011 GMC Sierra 1500 low beams not working

The low beams on my 2011 GMC Sierra 1500 are not working. My high beams work in both switch positions. What is the simplest and cheapest way to fix this problem?
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54 views

Access to alternator output for powering a custom device

I have a custom made circuit (device) to be installed in my vehicle. This device is to work (power up) only when the engine has started. It consumes a reasonable amount of power hence do not want it ...
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1answer
12 views

06 Suzuki 250 gz electrical issue

I lost my keys and had to order a new ignition. When I got the new ignition I plugged it in and it shorted out. I've checked my fuse's they all look good. Do you think that it could be the relay or a ...
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24 views

Window switch works when it wants to

I bought an aftermarket window master switch for a Jeep Liberty it works most of the time when it stops working and all I do is unplug it and plug it back in and it works fine for about a week then ...
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203 views

'94 Kawasaki ZZR600: Electrical issues

first post here, be gentle :) I have an (presumeably) electrical issues with my '94 Kawasaki ZZR600 (ZX6). Two weeks ago, I was ready to go to work when suddenly the bike died on me, all electrical ...
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39 views

Hybrid Honda Fit 2014

I just did a transmission exchange, now the car starts for about 10 seconds then it shuts down, then the battery light comes on. What is causing this ?
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37 views

Interior lights aren't working, no power on ACC position

General Info: Car: Nissan Murano 2005 SL Crank + start: Yes Battery charged: Yes Battery terminals correct install/uninstall order: Yes Problem: No power on ACC position, no ignition key warning ...
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48 views

Blower motor running wide open after replacing resistor

After i replaced the resistor for the blower motor the fan runs continuously. It doesn’t respond to the fan control knob even to turn it off. Also now the the a/c compressor is not kicking on. Is it a ...
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1answer
49 views

Anti-static drag strips benefits of earthing?

I know this sounds like a stupid question but could an anti-static dragging strip have any benefits to a car attached to certain parts of a car in terms of galvanic corrosion or any other form of ...
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1answer
677 views

Mazda Axela 2009 Pioneer C9P5 Head Unit

My car is a Mazda Axela 2009,it has a Pioneer C9P5 Head Unit installed; a flat battery has wiped the settings for the backing camera, how do I restore it?
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brand new battery brand new alternator car will not start even with a jump

2001 Toyota Sienna. Had a blowout on the driver side which messed up the wires. Tape them up and lost hazards. Recently car died while driving took it to the mechanic and got a brand new alternator ...
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7k views

Low voltage at reversing light socket - is it the switch? What else could it be?

The car has a single reversing light in the bumper. The bulb doesn't light at all (tested, also tried spares). Measuring the voltage at the socket I get around 9V with no bulb in the circuit (with ...
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1answer
48 views

Jeep wont start when cold

This is weird never seen anything like it my 1991 jeep cherokee will crank over and start right up on any warm day but when it gets cold out it will crank over but no start? Now i tried giggling the ...
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1answer
54 views

Why doesn't polarity matter for fuel injectors?

Why doesn't polarity matter for fuel injectors? If they are essentially a solenoid, then it seems it would matter; swapping polarity would change the direction the electromagnet pulls or pushes.
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El wire inverter repair

How to repair el wire 12 v DC inverter....? While it's working, I heard a humming like noise. Now, it's not working and no such noise is heard. How to fix??
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Infiniti G37 Changes Settings on Power Off

2009 Infiniti G37 sedan. I'm losing audio and display settings every time I power off the car for more than a minute or two. I checked all the fuses (in the cabin and in the two under-hood fuse ...
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1answer
41 views

Why does a relay not short the battery?

I am planning on hooking up a 4-pin relay to supply power to ignition coils on a motorcycle. The on/off switch on the diagram below is the ignition switch operated by the key. Ignore the fact that ...
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2k views

1999 Ford Ranger Battery Drain

I have had a slight battery drain on my Ford Ranger, enough to kill the battery after a few days of sitting. The battery is new. This is the troubleshooting I have done so far: Tested the battery ...
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2answers
58 views

Improving conductivity of electrical connectors

Is there anything can do with this and similar connectors to improve the electrical quality of the connection and avoid intermittent disconnecting? I saw this thread but it seems to focus on other ...
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2answers
80 views

Electrical isues on j10 nissan qashqai

I have a problem with my Nissan Qashqai, its a late 2010 so its a facelift model. The lights flicker when I am driving, when im parked, basically all the time, my windows roll down slowly, some ...
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1answer
68 views

How about how many amps does a vehicle pull at idle

Assuming the lights and stereo are off, how many amps can you expect an idling vehicle to pull? In this particular case I'm wondering about an F350, with flexfuel engine?
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262 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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1answer
62 views

Bypassing immobiliser in a 1999 Subaru Forester

I have two paddock/farm vehicles. One is a 1998 Forester (black), auto, EJ20, no ignition immobiliser. The other is a 1999 Forester (green), manual, lo-range, immobiliser. Neither came with a FOB or ...
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342 views

Differences between drive by wire and drive by cable

What are the main differences, advantages, and disadvantages of using a drive-by-wire versus drive-by-cable system?
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2019 Kia Sorento annoying and now dangerous electrical issues

I had a 2013 and a 2016 Sorento and they always worked perfectly. Now I have a 2019 and have had annoying electrical issues from nearly the start, and today something very dangerous happened. The ...
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2answers
7k views

Wiring a 3 pin relay to power a dual horn from a stock switch (single-horn)

I am trying to implement a dual horn setup for my bike. The stock came with a single horn. I have with me a 3-pin relay(H-B-S) with me. I am connecting the positive from the battery to the B terminal, ...
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212 views

1999 Dodge Durango won't start after backwards jump

1999 dodge durango will turn over but not start after a friend put jumper cables on backwards.when i try to start vehicle security light blinks ,flashers and dashboard light blinks for approx a min ...
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15 views

DRL switch with headlights

I plan to replace my original fog lights with Osram "LEDriving FOG PL Silver Fog Light" kit, it's basically fog lights + DRL (Daylight Running Lights). Wiring the fog light part is easy as it will not ...
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2answers
871 views

No Power at All / Key Stuck in Ignition 2009 cobalt

went to start my Cobalt, turned the keys on, power flashed on for a second and then everything went out and keys got stuck in the ignition.
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1answer
158 views

How likely it is that low alternator voltage cause Xenon HID headlamps ballast to fail?

It seems that the alternator is producing a bit low voltage, about 13.4V max, while this should be over 14V AFAIK, undercharing the battery. The left Xenon HID headlamp ballast failed some time ago, ...
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1answer
85 views

2009 Suzuki LS650 Battery Problem/Question

I bought a new battery that had the same amp and voltage as my current battery that I was going to replace. I double checked via the website, and they confirmed it would fit my motorcycle. (Moto ...
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52 views

Electricity not working when car is off

2015 Honda Accord Replaced the battery in my wife's car. After replacing the battery, it seems as though none of these things work when the car is off - Headlights, Dome light, Power locks, key fob (...
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1answer
45 views

Diagnosing Short on Starter Circuit in 1995 Chevy Suburban

My 1995 Suburban K1500 has a shorting issue that drains the battery when left for long enough. I have isolated the problem to the fuseless starter circuit and I am 95% sure that the short is not ...
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3answers
54 views

My 1999 Toyota Sienna takes time to start and when I press accelerator it goes off

My 1999 Toyota Sienna will take time to start when it cools and when it eventually start and I want to raise it by pressing the accelerator, it goes off and I have to restart it again. And again if I ...
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2answers
4k views

EFI fuse blows randomly.

I am beating my head in with this issue. EFI fuse blows randomly, I have found no patter. When it blow, it will keep blowing them and not start. I have to disconnect the battery first and then replace ...
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1answer
528 views

Toyota picnic car

My Toyota picnic is giving me problem, when driving on motion the car fired well and after covering some kilometres it started jerking heavily on slow down mode either for pot holes on the road or ...
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2answers
305 views

Electrical issues with Mazda3 '07

Recently I started experiencing some weird electrical issues with my car: FM stations settings get lost My remote key gets unpaired The engine often shuts down at intersections (when stopping) as if ...
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1answer
40 views

(2004 Lincoln Navigator) How do I set up these screens in the back?

https://imgur.com/a/uzLyQpr They were like this when we bought it. I tried putting a DVD in it and it wouldn’t turn on at all. It came with extra cables and extra connectors.
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17k views

Is error code P1684 common when the battery is replaced?

I have 2002 Dodge Stratus and I replaced battery yesterday as my old one died. Sometime this afternoon I noticed that the check engine light was on. After "key dance" method, I got P1684 error code. ...
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347 views

2006 Buick Rendezvous 3.5 will not rev over 3500 rpm in park or driving with pedal to the metal. Any ideas?

3.5 will not rev over 3500 rpm. PO 449 is the only code stored. It will not rev over 3500 cold or hot. After driving 10-15 minutes seems like the transmission is searching for a gear, just ...
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1answer
217 views

Loss of power to the sound system. Can it be the ground?

I have a 2008 volkswagon rabbit. The sound system has stopped working completely. I've checked the fuses and none of them are blown. It is a stock 2008 vw rabbit 4 door which came with the ...
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1answer
232 views

Battery Draw while car is off at 3.24

I have a 2007 Saab 95 wagon... For about 6 months at random about once a month my car has been dead. After calling AAA and they told me there is a draw from the battery at apx 3.24 which is should be ...
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69 views

COP +12V short to ground?

I have here a 03 Durango 4.7L V8 with a COP ignition system. Each coil pack has 2 wires which according to FSM one wire feeds all injectors and coil packs from a relay and one is a "signal" from the "...
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98 views

1986 Nissan D21 Connector Part

What is this? As a hint, I'm losing about 2 volts between the alternator and the positive terminal of the battery here. It appears to be the last connection on the way back to the battery, just after ...