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7

The fastest, cheapest and easiest solution is to add a battery disconnect switch to the car. After placing the ignition switch into acc mode the open the hood and disconnect the switch. When you arrive at your destination, open the hood and reconnect the switch. This costs under $20. It also eliminates the need to run anything or calculate anything. Many ...


6

Basic Functionality Image In order to illustrate a typical Multimeter The Multimeter is specifically a multifunction tool. By definition it combines several, well defined instruments and multiplexes the controls for simplicity. Inputs Majority of Multimeters will have 3 input terminals. Typically you will only use COM and V/mA/Ohm input (often Black ...


6

I recommend you carry out the following steps: Have the starter relay tested. From the description provided (old starter was clicking) this may actually be fine but it is so easy to verify that it works it would be silly to not rule this out as the source of the problem. After locating the starter relay, have someone turn the key in the ignition to start ...


6

From underneath the car, you may be able to get access to the starter motor. It is then possible to connect jump leads from a charged battery to the car by connecting the positive lead to the the large connector on the starter motor and the negative lead to a suitable place on the engine. Once you have power, you may be able to open the car as usual.


6

The power of your compressor is given by P = V x I = 12 x 30 = 360 W. This sounds about right. It sounds as though your compressor is badly made and that the pressure switch is not adequate for the job. You could try to modify like this. Figure 1. Relay control of compressor motor. Rewire the unit as shown. Use a 12 V relay rated for > 40 A. Your ...


6

In an alternator there are two major components; the stator and the rotor. The rotor has a coil wound on it. By applying a current to that coil a magnetic field is formed and then spinning the rotor electricity is excited in the stator. Because the rotor needs to spin while mainaining electrical contact for the coil slip rings are used. There are ...


6

Two possible failed parts: The ignition switch or the starter relay. The ignition switch would be either not returning to run or has failed electrically. The relay would have to be stuck on or commanded on by the Security ECU. The security system is not supposed to turn on the starter only stop it from working. It is the least likely failure.


5

Testing Your Stator There are three yellow wires that come from your stator. They come out of the left side crankshaft cover and route into your sprocket cover and out along the cast bottom portion of your frame on their way to your rectifier. They connect directly to the rectifier. You can disconnect them from the rectifier and test them with a ...


4

Since the drain is very repeatable, connecting an ammeter in series with the battery and disconnecting each fuse in turn is a good idea as @jphil1618 suggested. You could find that the problem is associated with multiple fuses, for example it could be the fuel pump that is running (I know you would hear the pump) and while pulling the fuel pump fuse will ...


4

Checking the Key Off amperage draw is the standard test for this symptom. An ammeter that is very accurate in the Milliamp range is needed. Low quality meters are readily available and can quickly lead one to a false conclusion. The test: Remove ignition key, wrap in aluminum foil if Smart Key, Wait at least five minutes, newer smarter cars will need ...


4

adding a diode would probably be counterproductive as it will cause an extra voltage drop, I'd look into fitting a relay such that the socket was not connected during engine start.


4

A pretty safe fuse protected accessory circuit in your car is the one that powers your audio system. According to this information, you're looking for the following wires: Car Radio Switched 12v+ Wire: Violet Car Radio Ground Wire: Black By tapping into these wires, you can safely add a low power accessory circuit. Alternatively, if you need more ...


4

If the car is drive by wire it doesn't mean everything There are some cars that are drive by wire where it's the accelerator only. Brake by Wire If it's an electronic brake system the term EBS or electronic braking system may be thrown around. As the article states EBS systems are typically found on commercial vehicles. True brake by wire systems are in ...


3

It sounds like the shutting mechanism for the door is not quite getting the door closed, or maybe the switch which tells the door closer to do its thing is broke. As @NateEldredge says, get the battery recharged completely and investigate further. Once it's recharged, try to open and close the door from the side the noise is coming from (assuming it has two ...


3

On the starter there will be two connections. The smaller gauge wire (s terminal - blk/wht) will run from the starter to the neutral safety switch ( A/T only - right side of transmission) and then to the ignition switch. The larger gauge wire runs directly to the battery. On a M/T the wire runs straight to the ignition switch. The larger gauge wire will ...


3

I found a Toyota Technical Service Bulletin (TSB) #EG009-03 which talks about this very problem with the VVTi engines. The bulletin gives the following steps to diagnosing/fixing the issue: Inspect the condition of the valve cover oil baffle as per TSB EG007–02. If camshaft or camshaft position sensor damage resulting from a bent baffle is ...


3

That sounds like a loose connection at a specific wire. Car alternators have a control output to tell the instrument cluster or the ecu that the alternator is running and generating power. It there is voltage on that wire, the battery lamp is off and vice versa. In allmost all cars it's as simple as this. Most likely the wire on that terminal wasn't ...


3

Disconnecting the battery messes up your radio, etc. Instead of a diode which causes a voltage drop you could put a 55 W lamp in series. It will limit the current to the battery but as the battery charges up the voltage drop across the bulb will reduce and the battery gets full alternator voltage. When cranking the motor home its battery voltage may drop to ...


3

A lot of times, I use a "water in a pipe" analogy when I think about electricity. In order to explain why the lights dim when you start the car, consider the following: your car, on average, uses a reasonable amount of electricity. This electricity can be considered equivalent to water flowing through a pipe, let's say a 2-inch pipe. When you turn your ...


3

Root Cause: probably a couple of things Sadly, I feel that there isn't enough data here to uncover the smoking gun, but I have realized some things upon reflection that can indicate what is probably wrong with the vehicle: Question 1 If the front lambda sensor voltage is indicating rich, why is the fuel trim positive (indicating that the injector ...


3

Your vehicle is equipped with the Duratec 24 valve double over head cam 3.0 liter V6. In the descriptions where you see 24V, that stand for 24 valve. The car has a 12 volt electrical system and not a 24 volt one. The Mercury Sable has 2 different engine options. One is a 3.0 liter V6 overhead valve (OHV) 12 valve and the other is 3.0 liter V6 double ...


2

Afaik, the answer is no. Sorry. The climate control diagnostics mode was meant to be used for quick checks if no diagnostic cable is available. There is no possibility to turn it on permanently.


2

this war radio wiring diagram will help you :


2

It sounds like your starter solenoid is bad. You starter solenoid has two pieces to it. The signal it takes from your ignition switch triggers a magnet the turns another switch when the magnet is activated it closes another circuit for your starter. This gives your starter current from the battery to turn over your engine. If I get what your saying, ...


2

While your're checking fuses, don't overlook the connector(s) on the headlights themselves. Sometimes they fail over time and other times due to people putting higher wattage bulbs than the connectors can handle.


2

Wesayner explains how this works, but admits that the measurement is subjective. It's not a good way to tell the state of your battery, but it will tell you if a dead battery is the reason your engine won't start (or, more specifically, won't turn over.) The starter is connected to the battery by a relay: the keyswitch operates an electromagnet, that ...


2

Basic Functions A multimeter is an electrical device for measuring electrical Voltages (Volts, V), Currents (Amps, I) and Resistances (Ohms, Ω). Most are also capable of measuring continuity, and many have other functions such as testing diodes and transistors/ It is used by setting it to an appropriate range, and using the attached probes to check the ...


2

Looks more like 4 questions lol. But here goes. Basic Functions : Multiple Ranges for measuring Volts, Ohms (resistance), and Milliamps. Headlamd failure: Negative or black lead to a good ground (negative battery post,clean spot on the frame etc.) Red or positive lead to the terminals on the headlamp plug (headlight switch on). No voltage? Check for broken ...


2

I don't remember seeing that harness on my 2001 E46, but all the E90s have them. The general consensus is that it's used in shipping to ensure the battery remains charged. It is perfectly normal to have that harness sitting there unplugged.



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