Electrical Problem?

[6.7 larimie longhorn]

I got a 2011 RAM 2500 just recently all the lights would pop up on the dash, the ABS parking brake exhaust brake coolant light, battery light, a lightning bolt, etc.

The P, N, and D lights will turn green, while the reverse is red.

Oil pressure won’t read on the dash.

While it is doing this, the truck will not start but if it is already started and this happens, it runs fine.

Besides, the fan starts up and acts like the truck is overheating.

It did throw a check engine light, and the codes I got are P2509, U010c, U0141, U0001, and P0381; I checked all my grounds, cleaned them with a wire brush, replaced batteries, and checked the fuses.

I'm still having the problem and figuring it out.

Any help is appreciated.

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[Corkey]

On the monitor, do you always see two green lights on the corner of the dashboard screen?

If you have the MM3.

If you do, I wonder if you are getting a lousy signal from the connection to the OBD2 port or a bent prong.

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[AK Bob]

See attached troubleshooting information. Keep in mind this is for my 2014.

Your 2011 circuit may differ.

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[northstarfire0693]

I wonder if he has bad batteries.

I know low voltage will cause some funky stuff to happen.

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[NovaNewfie]

I had something similar happen in 2017.

Once my batteries needed to be replaced, 2nd time my key fob battery was dead.

I had my Edge CTS monitor go bad as well.

It made my tire pressure light come on in my truck.

I have a 3500, so it's just a monitoring system, not a warning system.

It was the only time the light had ever come on.

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[6.7 larimie longhorn]

I replaced both batteries when it first started happening cleaned all the grounds and positive.

It’s still doing the same thing.

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[6.7 larimie longhorn]

The OBD port works when there are no lights on the dash or the p,n, and d lights change from white to green.

When no lights are on the dash, everything works as it should.

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[AK Bob]

The OBD port works when there are no lights on the dash or the p,n, and d lights change from white to green.

When no lights are on the dash, everything works as it should.

Verify all good powers and grounds at the PCM.

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