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Wiring diagram for plug in back of stereo

Need diagram of connector, so i don't have to do it the old fashioned way with a multi-meter and circuit tester . bascially that page from the user guide

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  • C Graber May 18, 2008

    Left front speakers suddenly stopped working.  This happened about 18 months ago, and I found the wire harness that plugs into the back of the radio/cd player was not making good connections.  I jerry rigged something together with toothpicks and epoxy to make the pins from the player connect securely with the harness, and it worked until about a week ago, when the left side went out again.  Can I get a new harness, or do I have to **** around with this one again, or do you have other suggestions?  
      Please reply.    - CGraber

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Posted on Nov 24, 2007

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94 Corvette. Windows don't roll down or up button on Side door not working either. Hatch Button works on Center Console. Are there fuses under hood causing this? The Stereo Amp behind Seat BAD, water


Are there fuses under hood causing this? Without looking at wiring diagrams to see what all is involved in the power window electrical circuit would be guessing as to what the problem is . An looking at a wiring diagram I see a circuit breaker supply's B+ voltage for the window's . Circuit breakers very rarely go bad . I would look for broken wire's inside the rubber flex boot from the body to the door. Or maybe the power window control module is bad . If you know nothing of automotive electrical systems , wiring diagram's ,an how to test with a DMM - digital multi-meter ,your best bet mite be to take it to a qualified repair shop .

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Hi. I have 2006 VW Jetta 2.0 TDI .I don't know why my car injectors socet hasn't got power electric? I changed Crankshaft sensor I changed camshaft sensor I changed injectors wiring harness.


Those sensors wouldn't affect power to the injectors.

You need a voltmeter, it's an electrical problem, so you need a digital volt/ohm meter (DVOM), or also called a multi-meter, and digital because many car circuits that are computer related operate at very low voltages or power demands, from milliamps to thousands of volts, like the ignition delivers to the spark plugs. So you buy a cheap multi-meter, then you also need a wiring diagram for your car to see how the fuel injector circuit works. but start there where you plugged in the new injector harness.

You are looking for power to the injectors, with key on. The injector harness has 8 wires; each injector has a power wire and a ground wire, so 4 of the wires in the harness should have power. At least on most American cars, the injector works by having the ecm control the ground for the injector . The power is constant. It is only when the ecm momentarily internally grounds the injector circuit that the injector fires. On your VW, the injector power wires and ground wires both go to the ecm.

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1 Answer

Need a wireing diagram for 149 cub cadet mower tractor it does not charge


The Battery Won't Charge or stay charged.
Several possibilities
  1. Key switch doesn't turn off the system and the battery drains while it's parked.
  2. Bad insulation on the wiring somewhere and the battery drains down.
  3. The alternator is not putting out enough power or no power at all.
  4. The battery is bad.
Let's consider the battery first. This is an easy check if you have a cheap, simple volt meter. It's much better to have an old fashioned needle meter rather than a digital. The needle is more sensitive, much quicker, and makes a clearer diagnostic tool. But not to worry, for you fancy folks a digital still works (sometimes the results are not as easy to decipher).
  1. Set the meter to DC Volts.
  2. Attach the red and black leads of the meter to the positive and negative posts of the battery. Most modern day digital meters don't care if the polarity is correct or not. However, if you have a needle meter, best to put the positive of the battery with the red wire of the meter; otherwise the needle will not be happy with you.
  3. Note voltage. It should read near or above 13 volts if the battery is good and fully charged. If it reads below 12 volts the battery needs charged or it has bad cells. If after charging a few hours, the voltage is still below 12 volts then the cells are bad, replace it. That should solve your problem. If not...continue.
  4. "Load Test". Turn the key to crank the engine while keeping your eyes on the meter. Whether the engine cranks (turns over) or not, the meter should not fall much below 11 Volts. If it falls below 10 volts or worse yet below 9 volts, the battery has a bad cell or two. Replace the battery, charge it, and repeat the test.
  5. If the engine starts, rev it up and watch the meter.
    1. If the charging system is working the voltage on the meter should quickly rise above 13 volts.
    2. If it rises up strongly towards the 14 volt range this indicates the charging system of the machine is working.
    3. If it plays around down near 12 volts you are reading the recovered voltage of a good battery, but the charging system is not working.
    4. If it simply stays below 11 volts, the battery and the charging system are both suspect.
      1. Charge you battery.
      2. Repeat the test.If you get the same results...continue
      3. Replace the battery.
      4. Fully charge it,
      5. Repeat the tests before worrying about the charging system.
Note: if the battery falls below 9 volts the fuel cut off, a black cylinder on the bottom of the carburetor (if your model has this), will cut off the gas supply to the carburetor.

If the battery passes all the tests and you still don't get 13-14 volts of charge it's time to test the charging system.

Small engines have 3 different possible alternators, standard circuit, dual circuit, tri circuit. I would need the exact engine model numbers in order to precisely answer your question. Often mower models have choices for the engine they come with. In this situation the engine model is more important than the model of the mower.

Testing an alternator is fairly simple; all you need is the same multi-meter used for battery testing. Do take note: The settings for battery testing are DC Volts. The Settings for Stator or Alternator testing are AC Volts (in the 50 Volt range).
  1. Disconnect the connector from stator. The stator is right there on top of the engine under the plastic/metal fan guard. Take this off and look for a pigtail wire with a connector. Don't get the coil wire with the spark plug end.
  2. Set multi-meter for AC volts.
  3. Attach RED test lead to either pin on stator side of stator connector. (On single wire leads, attach RED test lead to the single pin.) On AC output alternators there is no positive or negative because both wires alternate from positive to negative, so either pin will do.
  4. On two wire lead models, attach Black test lead to the other pin. On single wire stator connectors attach the Black test lead to the engine or other ground.
  5. Prepare the lawn tractor for engine start (set parking brake). Start engine and run at full throttle.
  6. Check output. Output for engines of this general size run in the 30 to 50 volt range. For instance the B&S V twin 22 hp AC output at full throttle is 30 Volts minimum. Other B&S on these machines spec 40 Volt minimum.
If your voltages are not in the manufacturers range (too low), or non-existent, your stator is partly shorted or completely burnt out (open circuit). Either way you have to replace it.
A. In the picture is a single lead stator connector.
B .In the picture is a two wire lead stator connector.
25588487-nduycjuiiqtqizufokyqk0fw-3-0.jpg

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1 Answer

Electrical short in 2000Corvette, drains battery


Hi. Best way to find it is old fashioned leg work and an amp meter. You need a cheap multi meter with a 10 amp range. turn everything including ignition off and connect multi meter. You disconnect neg terminal and put amp/multimeter in line between the negative wire and battery. A good reading drain will be around 0.3 amps.
if it is higher than about 0.5 amps remove then refit one fuse at a time until the drain disappears, That's the guilty circuit. Jon

Dec 09, 2013 | 2004 Dodge Stratus

1 Answer

Installing aftermarket stereo, but van does not have acc position on ignition switch. Factory radio has power button, but also turns off after van has been turned off and driver's side door is opened. The...


Take a multi meter and find an open slot in the fuse panel use a bus connector and a piece of yellow 14 gauge wire and feed it up to the deck area .

Aug 17, 2013 | Cars & Trucks

1 Answer

Turn signals lights don't work on 1994 silverado chevrolet 3/4 ton. I tried new light bulbs, flasher and checked all fuses. hazard lights work.


well you need to test for power on the circuit that the turn signals are on, youll need a diagram of the circuit/harness and a multi-meter with the probe attachments that pierce the wire, start at the begging and work back to the lights, when you lose power you find your break in the circuit.

the method you would be using is voltage drop testing. and u can search it for more details on the process

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2 Answers

Im installing a new stereo and need a wireing digram


Hi there,

You'll need to determine which of these connectors match yours, then follow the appropriate diagrams:

Nissan Audio Wiring - 1985 to 1994:

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Nissan Audio Wiring - 1995 onwards:

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Let me know how you get on...

Cheers,

Scott

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Wiring diagram for accessory plug needed.


I am looking for the same wiring diagram. The headset Moto sells is a single earpiece with microphone, so how does that end up being a stereo connection Neto? Just curious how, or is there also a full headset with microphone? ( I dont' know, just asking)

Would this be a 4 ring TRS connector? Sleeve = ground, then left, right, and the tip as the microphone??

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Error code 224 I replaced one coil, the spark plugs and wires. No spark from 2 of the front coil connectors


No fault checking of almost anything, especially an ignition system, can be done without checking circuits and coils with a test lamp and a good ohm meter.

It is also a big help to have a circuit diagram - making it easier to know what should be happening.

Back to basics and systematic checking is the way forward...

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Wire harness diagram


www.scosche.com will give you the cars wires, u may want to just by a harness adapter, cutting wires=bad


Don

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