Weird issue

[loner5777j]

I got into my 2012 1500 the day before yesterday, and fired her up. EVERY mil light stayed lit, including all the gear indicators. Wouldn't let me put it in gear. Cycled on and off like 4 times, and then I was ok other than the check engine light. Yesterday, no check engine at all, until last night, same issue, all lights on, cycled it off 3-4 times and check engine stayed on, but ran fine. This morning, no engine light, then during driving it came on . I cycled her off, and fixed it. Anyone ever have this before?

 

[reek]

the only time I had weird electrical gremlins occur was when my battery was on its way out. My Pontiac G8 has a lot of computers running things. after about 3 years, odd electrical stuff started malfunctioning. after a while searching the web, I checked the battery. the on board info system said batt was at 75%. I disconnected the battery and let it sit for a few hours. still had issues. After changing to a new battery, all was fine. Not sure if the Rams are as finicky, but something to think about

 

[darthdzl]

Check engine light means codes. Get those codes read, whether at the dealer or at AutoZone or something.

 

[loner5777j]

Right, except the codes are nonsense. A few codes it throws are lost communication with drivetrain, body control module, airbag module, abs module and on and on. Then if you shut it off, turn it right back on, the check engine light is usually out, and NO CODES register. Makes it impossible to get to the heart of the issue, because it doesn't leave any evidence of the problem

 

[jwheeler]

The codes are not nonsense. The loss of comm codes will tell you when module is locking up and possibly bring down the bus. Sounds like that is what's going on.


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