Questions tagged [wiring]

For questions about the wiring of a car(apparatus that connects electrical circuits).

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1answer
175 views

Intermittent Wiper Wiring Nomenclature

! I have drawn up a schematic using instructions and schematics from my car and components I am installing. My question is in regards to the gray wire at the left side pin 6 of the Rain & Light ...
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0answers
535 views

Mercedes Axor wiring diagram

How can I find the wiring diagram for a mercedes axor truck? Specifically im looking for the wiring for the instrument panel. Can anyone help? Thanks
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0answers
122 views

connecting led halo lights on 2006 accord

I am installing Spyder projector LED halo headlights on a 2006 Honda Accord. Following the install instructions I twisted together the two red wires and black wires respectively from the LED halo ...
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0answers
147 views

VW Wiring Harness Repair / Replacement

I've got an '02 Jetta TDI (diesel) with ongoing problems (DTCs and low fuel economy) that seem related to the engine electrical system. The codes are all intermittent shorts to ground on various ...
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0answers
161 views

Fresh battery, no lights on 1979 Honda CB125 [closed]

I have a 1979 Honda CB125 that was running consistently about 2 years ago. It then sat for two years and the battery was corroded so I replaced it. I've made sure the battery is charged (I have a ...
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0answers
497 views

Nuts for 2008 VW Jetta SE 2.5L battery terminal bolts: 1/4" or M6? [closed]

I want to use an external charger to charge the battery in my US-market 2008 Jetta 2.5L SE with an OEM battery. I need to figure out which nuts to get to fit the existing battery terminal bolt, in ...
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1answer
334 views

2004 renault megane grand scenic ii

I am currently having an issue with my car when I try to start I have the follow messages low oil pressure, low battery, parking brake fault I have inspected all wiring fuses in engine bay all fine ...
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3answers
99 views

troubleshoot a shorted trailer wire

There is a short in the wiring on my trailer that keeps blowing fuses, so that tells me it's grounding somewhere. What are some ways I could troubleshoot to find where it's grounding at? I definitely ...
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2answers
819 views

Car Stereo Forgetting Settings Upon Restart

I installed a car stereo a few months ago and it seems to forget all of its settings whenever it loses power. The stereo the car came with didn't have this issue. I am familiar with electronics so I ...
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1answer
71 views

Where do I find the fusible link in my 2001 Mitsubishi Eclipse V6?

The right headlight low beam circuit fails to provide power to the headlight; there was an intermittent short at the headlight connector between the ground and power leads. The relay is operational ...
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1answer
2k views

Something is causing my 12V ignition wire for the stereo not to function

I have 2002 ford focus and I installed a new stereo system it was working fine.... then I had to pull the stereo out again b/c I forgot to install Mic. and cig lighter.... after I hooked those things ...
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1answer
242 views

Ground wires for a 1992 Ford Ranger with a 2.3 engine

I'm changing out my pos and neg cables. The neg has one ground wire with two eyelets where the bolts go through, one is hooked to the frame but the other I don't know where it goes, can someone help ...
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2answers
2k views

Wiring harness splicing - Soldering or Crimping Method

I need to rebuild the injector harness on an old vehicle using Y-splices on the wire to reduce cable usage/lengths (V12 engine). My question now is how to to the Y-splice on the wires. Soldering ...
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1answer
1k views

Two 12 volt power sources into one device

How can I power one 12 volt outlet (feeding a XM radio transformer) from two separate 12 volt sources on a RV (ignition and coach power). Is it feasible to use 2 diodes?
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2answers
91 views

Honda Accord Coupe 1999 Overhead Lighting Keeps Blowing Out

The overhead lighting keeps blowing out and the fuses blow out about every day. I have used 4 so I don't know where to start looking. All of the inside lights Any ideas?
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2answers
44 views

Finding wire for “Unused Fuse”

There are many unused fuses populated in my 2010 Ford Fusion's interior fuse box. I've tested with a voltmeter and the fuse I have in mind turns on and off with the ignition, which is what I want. Now,...
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1answer
39 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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4answers
1k views

Does Electrical Corrosion Increase During Seasonal Change?

There seems to be an excessive number of Questions being posted where the issue seems to point to electrical issues due to corrosion. I am wondering if this is perhaps seasonally related? The influx ...
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5answers
9k views

Horn / hooter works when car is off, not when car is on?

I have a (South African) Opel (Chev? Vauxhall?) Corsa bakkie (ute?). But I think this is more a general question than specific to this type of car. However, this model I own does not have many onboard ...
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1answer
40 views

2002 Silverado 4.3l wiring question, MAF sensor and water temp sensor throwing intermittent codes

My truck had been throwing intermittent MAF codes for a month, P0102 "low or no voltage." I only noticed due to the rough idle and "stumbling" on acceleration. I finally got around to giving the MAF a ...
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1answer
58 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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1answer
27 views

Does anyone know the style of connector used on Ford CFI throttle body injectors?

I am trying to find the part number on a connector for the injectors used on Ford's throttle body injection. This connector is on a Bosch injector made for Ford's CFI throttle body injection used on ...
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1answer
28 views

2008 chevy 2500HD 6.0L

Rear O2 sensor plug on drivers side has been torn off of the main harness leaving only two wires left to go to the O2 sensor. O2 sensor appears to have had 4 wires coming from it. How do I rewire ...
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2answers
29 views

Can we connect mobile to reverse cam display output

My cars reverse camera's display break. I can see a mini USB cable was connected to the display. Can I connect my mobile phone to that output using mini USB female to micro USB male jack with any kind ...
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2answers
790 views

How to handle connecting multiple ground wires?

I want to refurbish the rear light wiring of a campervan. The wiring is a mess with way too many connectors and no labeling, and has intermittent connection issues (lights not working). On one end, ...
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1answer
103 views

Where I do find a 12v accessory power in a 2008 Pontiac G5?

I'm trying to install a cruise control in my 2008 Pontiac G5. It's made by Rostra. It needs 12v accessory power. I think I need to go to the fuse box, but does anyone have any idea which wire to tap ...
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1answer
936 views

Electrical power shutting off while driving. 2002 Buick Rendezvous CXL

I've had this problem for about a week now. While driving the car radio, instrument cluster, A/C and lights shut off intermittently and I can hear clicking from relays in the fusebox. The engine runs ...
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1answer
75 views

Repair spark plug wires instead of replace?

Shakes and misfires on 2004 Honda odyssey: I've just replaced spark plugs, a few faulty coils (had oil in them) and the front-side o-ring and gaskets. I don't want to spend more money. All DIY. I had ...
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1answer
48 views

Speaker bass buzz

I am having some major troubles. I installed a custom sound system into a C5 Corvette. The deck is a KVT-7012BT Kenwood ( I used speaker wire to ground the RCAs). The speakers are Pioneers; two ...
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2answers
2k views

Why are ground straps bare, and can I shield them?

So I have to replace a ground strap on my wife's car, which is a bare, braided copper wire that's tinned and solder blocked in the ends. Because this particular ground strap is on the bottom of the ...
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1answer
15k views

Spark plug wire resistance

Question(s): What should the Resistance be for spark plug wires on a 2000 Blazer? If they're supposed to be 2,000-3,000 Ohms, at what ohms should you look to replace them? Is the resistance of all/...
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0answers
22 views

'91 Ranger Radio Circuit Board

I want to disable the tape deck from my '91 Ford Ranger factory stereo, and solder an AUX cable in its place. I took the radio apart, and to to get to the top of the board and find the labeled ...
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0answers
21 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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0answers
13 views

I have problems with low beam and cruise control on my Holden Commodore VY

Headlights were working fine. Low beam is now too dim to see with ( Both sides) High beam still works well. Cruise Control was working well, but now works on and off, sometimes for a while, next time ...
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1answer
33 views

Spikes while observing my obd2 scan tool

I have a 2005 chevy avalanche 1500 4wd automatic. I bought this last summer and ever since I got it, it has had problems one after the other. I recently bought a OBD2 scan tool and started observing ...
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2answers
1k views

Need help wiring low beam and high beam headlights

New aftermarket headlights on my daughter's truck have separate lights for low and high beams. I would like to wire them together so the low beam will still work independently, but they both will come ...
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0answers
15 views

Stereo Headunit resets everytime its switched off/on

Car: Audi TT 2011 Stereo unit: Pioneer SPH DA120 New on here and dont usually need to ask but i cant find an answer to my problem anywhere. Had a huge headache installing my head unit and a new sub ...
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0answers
41 views

diagnosing battery drain -ford Taurus 97 - fuse 23

pulling out fuses one at a time, i isolated the leak to: fuse 23 - leaking off-scale (> 250mA at 12V) - "Wiper system,variable assist steering, remote entry, anti-theft" fuse 24 - leaking ~180mA - "...
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1answer
51 views

Put in aftermarket stereo and used aftermarket wiring harness adapter… won't work unless connect battery and ACC wire together? Draining battery

I have put an aftermarket Double Din stereo in my 2001 Nissan Xterra and used the correct aftermarket wiring harness adapter kit. I have wired it color for color with the exception of leaving the ...
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1answer
41 views

How to figure out wiring scheme of cars AC controls

I'm not sure if this is the right for for this, but my 2011 Nissan Maxima has it's AC controls in the same part as it's stereo controls (see here) and I would like to replace my stereo. This means I ...
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0answers
33 views

Open ground wire causing weird behaviour of combination meter

Few months ago, my combination meter suddenly start flicking then all the gauges stop working. After diagnosing it myself with multimeter and with the help of wiring diagram obtained from google ...
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0answers
78 views

2018 Dodge Journey Alarm System

I recently bought a new vehicle and had an audio shop put an alarm system and a remote start in the vehicle. Everything seems to be working just fine, except for an annoyance with the remote start ...
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0answers
31 views

Is it safe to attach a 8.5Amps device to a fuse tap?

Would it be safe to attach a device that pulls max 8.5A according to the manufacterer to a fuse tap? I'm scared that the wire will overload. I have my eyes on a 10A fuse for interior lights to tap ...
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0answers
62 views

03 BMW 540I M package Charging System issue

I purchased this vehicle in October 17, 90 thousand original miles 3 different owners according to carfax. Car was in perfect condition, I personally kept in garage and rarely got out for the first ...
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0answers
206 views

Nissan micra 1.1 engine management light on, common fault?

Is this a common fault on the micra? Will the light go out if battery is disconnected, as some people claim? Obviously it would come back if there is an actual fault.
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0answers
56 views

Can a “switched” automove circuit be re-routed to power devices currently wired to an “always-on” circuit, all just in the fusebox?

The reason behind this question has been asked (and answered) countless times: How to make an automotive dashcam, that plugs into a 12V accessory socket, switch off when the engine is not running. (Or ...
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0answers
39 views

73 F100 ignition

73 F100 Electronic distributor (no points) **NEED CORRECT WIRING FOR/TO EACH OF THESE DEVICES ** Ign switch (Blk w/grn, Yellow, Red, Pink & two Red w/grn - on one terminal ) ICM (2 + 4 w/Blue ...
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0answers
75 views

What type of pins do H13 headlight sockets use?

I'm changing out the headlights in my 2004 Jeep to something more modern that require H13 sockets. I purchased some OEM H13 pigtail connectors, but I would much rather prefer to cut off my H4 ...
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0answers
153 views

Car stereo wiring for illumination

A friend gave me the Toyota PZ071 stereo head unit. He installed a different set in his car and the original head unit he gave to me. Unfortunately, the installer left the original connector harness ...
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1answer
141 views

Missing fuses - is it OK?

I recently got the car horn replaced and the mechanic changed the 2xfuses for the horn from 7.5 amps to 15 amps each after installing the new horn. This is because when testing the horn, it blew a ...