Where is the charge wire on a Dodge alternator?

There is a Black/Grey Wire between the Gen/Alt and the PDC which contains the 140amp fuse and then a red wire to the battery. This is the large charge wire that electricity flows from the Gen/Alt to the 140amp fuse in the PDC and onto the battery.

Why is my alternator not charging while the engine is running?

If you have power on the blue wire while the engine is running and can hook 12v to ground on the green wire while the engine is running and voltage on the large stud your alternator is bad, but if you don’t have one of the other………

Where is the PCM located on a Dodge alternator?

This is where the PCM lives behind your air filter box, notice I removed mine for better access, TURN THE KEY OFF before disconnecting. The connector closest to the passenger side is the Grey C3 connector. The Connector in the middle is the White C2 connector. Reference the wiring diagram at the PCM.

What kind of voltage does an alternator have?

– The dark blue wire is the voltage supply to the Generator fields. Meaning this is a positive wire and should have 12V on a meter or light a test light like this when the test light is hooked to battery negative as in the picture.

What happens when you have a bad alternator in a Dodge Ram?

As described above, a bad alternator will drain your Ram’s battery fast. When the battery gets so dead it will no longer be able to power your Ram’s ignition system. As the ignition system is no longer able to produce a full powered spark, the engine will begin to sputter and stall.

Why is my alternator not charging my battery?

I changed the alternator out, three times actually. O’reilly was thinking they gave me a bad remanufactured one. The batteries are far from new but they took a charge and showed they were good, O’reilly charged both batteries for me, trying to help where they can.

What are the symptoms of a bad alternator?

Outside of the battery warning light, a dead battery is the most common symptom of a bad alternator. As the alternator can no longer supply your Ram with an adequate power supply, it will begin to feed off of the reserve in the battery.

What should battery charge be on Dodge Charger?

Connect the digital voltmeter to your Dodge’s battery terminals. Be sure to connect the positive clip on the 12-volt voltmeter to the positive post and the negative clip to your battery’s negative post. The reading you receive will reflect the charge of the battery alone. A reading around 12.5 or 12.8 volts is normal.

What kind of alternator does a Dodge Ram have?

This 12V, 136A, alternator is a Direct replacement for your stock alternator on your Cummins engine in Dodge Ram (model years: 1989-2002), with no mounting bracket modifications. Our custom built Dodge Cummins One Wire Alternator does not require any connections to your vehicles computer to function, simplifying your charging system.

What should the volts be on a Dodge Ram?

It should be getting close to 14 volts when the alternator is charging it. If it’s any less, then you know that it’s not getting a charge and that the alternator has gone bad. Figure 5. Check the alternator.

What happens if the alternator on a Dodge truck is not working?

The alternator on your Dodge, whether it’s a car, truck or van, is an essential piece of its electrical system. In fact, if the alternator is not working perfectly, your Dodge will soon begin to experience serious problems. For example, with an improperly functioning alternator, the battery will quickly drain.

How to make an external voltage regulator to bypass a Dodge?

This can also be done to regulate any 12 volt battery alternator combination. It completely separates the voltage regulating from the computer . Here are the parts I use. A junk yard would also have these parts. Wire Nuts (I solder the connections together but some people use wire nuts.) Loading…

How to know if your alternator is charging or not?

This is the large charge wire that electricity flows from the Gen/Alt to the 140amp fuse in the PDC and onto the battery. This is the large wire on the large stud on your Gen/Alt and you should have battery voltage or alternator output voltage on this stud. Check the fuse if you don’t, or wires associated with that circuit. 2.

Can a bad battery cause a bad neutral switch?

Of course, you might not recognize this problem as being directly connected to your neutral safety switch because the same symptom can occur from a bad battery or starter motor. Sometimes the engine might crank in park but not in neutral. This is another possible symptom of a neutral safety switch problem.

Why is my starter motor not cranking up?

In this case, no power is flowing through the neutral safety switch to the starter relay. This prevents the starter motor from cranking the engine. This symptom indicates a completely open electrical circuit inside the neutral safety switch which may be due to a faulty relay, blown fuse, or electrical problem with the switch itself.

What happens when the ignition switch is in neutral?

When the driver turns the ignition switch and the automatic transmission is in park, or the manual transmission is in neutral and the clutch pedal is engaged, the car should trigger the starter to engage.

How does the computer work on a Dodge Ram 3500?

Sensors positioned throughout the Dodge Ram 3500 send trouble codes to the computer when they sense a malfunction. The computer illuminates warning lights and service lights on the instrument panel to alert you to have the vehicle looked at and repaired by a qualified mechanic.

Why is my alternator not charging on my Dodge truck?

Once we arrived home i realized the alternator had started whinning, had an electrical smell coming from under the hood, and running low voltage. We diagnosed the problem as a bad alternator. We ordered and alternator, and 3 days ater when it arrived and installed, i had the same problem.

What to do if your Dodge truck won’t charge?

Quick Tip: If your 1st or 2nd Gen Dodge truck won’t charge, don’t waste your money on a new ECU. Try installing an external voltage regulator! Watch more Quick Tips: https://www.youtube.com/playlist?list… Follow Rich on Car Throttle. https://www.carthrottle.com/user/debo…

How to test the voltage of a Dodge alternator?

There should be a connection between these two pins. Next test the Pin 10 of the White C2 connector to the GREEN wire pin at the alternator plug. There should be a connection between these two pins.

What causes an alternator to over charge a battery?

Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.

Where is the C3 connector on a Dodge alternator?

The connector closest to the passenger side is the Grey C3 connector. The Connector in the middle is the White C2 connector. Reference the wiring diagram at the PCM. We are concerned with pin 25 in the Grey C3 connector as it is the opposite end of the dark blue wire at the alternator.

Why is my alternator not charging my Truck?

I am not getting any charge from the alternator, it has failed the in truck tests several times. My two gauges are showing 11.4 down to 10.6 and then the check gauges light comes on and then the lightening bolt comes on. I have the regular dash gauge and the one on my Edge Insite CTS2 show the same voltage.

What to do if your Dodge Charger regulator is failing?

The 1969 Dodge Shop manual (available from Year One) details how to do this. If you think your regulator is failing, open it up and clean the “points” with some emory paper or light sandpaper. Sometimes these points get corroded and this stops them from working.

What does the regulator on a Mopar Charger do?

The other connection on the regulator is a blue wire with a female plug end. This is the “IGN” Ignition side. Basically, the voltage regulator completes the charging circuit and allows the alternator to charge the system.

Can you use an external voltage regulator on a 1987 Dodge alternator?

This kit can be used on Standard and High Output Alternators with External Voltage control. Also, this product can be used as a wiring harness and external voltage regulator replacement kit for any 1987 and earlier Chrysler Family vehicle alternator with dual insulated brushes.

What’s the voltage on a Dodge talk alternator?

Black lead from the meter is hooked-up to the battery ground. Then touch each end of the link with the red lead. Say you get 14.3V at the alternator post and then 13.1V at the Fuse Box/Battery end, then fusible link is bad.

Why is the alternator on my Dodge truck not working?

Purchased the vehicle a couple years back, and have enjoyed the vehicle touble free until a couple weeks back. A couple weeks ago my fiancé and I were trying to out run a storm to a local fishing area before the rain hit, and failed miserably, and drove straight into a down pour.

So basically the alternator is not charging the battery at all. Just a few minutes of driving kills my battery. I did try all the simple stuff already I’ll go ahead and type the whole timeline.

What should I do if my Dodge Ram battery is not charging?

Go to a local battery shop and have them do a load test on your battery. This will check if the battery is functioning under a heavy load. Also use your multi-meter to make sure there are 12 volts in the battery. Figure 2. Test if the battery retains a charge.

How to find a short in a wiring diagram?

Trace the wiring till you can see where a short may have taken place. Eliminate each portion of the diagram in sections until you find the short in the wiring. This makes knowing where to check connections easy with an automotive wiring diagram. SEARCH WIRING DIAGRAMS

How do I get a free wiring diagram?

This is not an automated service. Each Diagram that is requested has to be hand selected and sent. As this is a free service it receives an overwhelming amount of requests and may take up to a week or longer for a response. Just submit a request for the wiring diagram you want (ex. “Need wiring diagram for charging system”)

What should I do if my alternator is not charging?

Still no signal to tell the alternator to charge. They put the alternator on a bench charge and it was good, said they load tested the batteries and they were both fine. Powered the alternator up by an external power source??? and then he said the gauge went right up to 14.5v.

What should voltage be on Dodge Ram alternator?

Test it! There should be 12v there telling the alternator to activate the field and start charging. If you don’t have voltage here you can trace it back see if there are any chafged or broken spots. Once ur traced rohjt back check for voltage there. Truck running/or key on during all this testing.

What should the battery level be on a Dodge Ram?

The battery was too dead to start again so I Jumped it off of another car and busted out the meter. The battery started off at about 12.2v and slowly dropped down to under 8v but wouldn’t really drop past 7.3v.

What to do if your alternator is over charging the battery?

Ask an assistant to start the engine and hold engine speed at about 1500 RPM. Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty.

Why does my alternator get higher than base voltage?

You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.

What should I do if my Dodge alternator is not working?

Listen to the Dodge’s alternator while the engine is running. The alternator should be quiet. If you hear squealing, rattling or grinding coming from the alternator, it will need repair or replacement.

What does it mean when your alternator stops charging the battery?

Indicator Light On. Usually, the first sign that your charging system is in trouble is a “battery,” “ALT,” or “CHARGE” warning light illuminating on your instrument panel while driving. It means that for some reason, the alternator has stopped charging the battery and your car is running on battery power.

When to troubleshoot an unusual voltage system drop?

Troubleshooting for Unusual Voltage System Drops Usually, the first sign that your charging system is in trouble is a “battery,” “ALT,” or “CHARGE” warning light illuminating on your instrument panel while driving. It means that for some reason, the alternator has stopped charging the battery and your car is running on battery power.

What causes the charge indicator light to come on?

You may notice: your ALT or CHARGE indicator light comes on, your engine is hard to start and cranks slowly, or doesn’t crank, your battery demands lots of water, your alternator makes noises, or your headlights suddenly go dim. These and other problems may be caused by a fault in the charging system.

Where is the charge wire on a Dodge alternator?