CEL on my Dodge Ram

[Donald]

By mistake I left the truck in the ON position (engine not running) for about 1 day. I half noticed it the next day, started the truck, and saw what I thought was "check gauges" and assumed that would go out when the voltage stabilized on 14V. Then I noticed it was CEL. Temp, oil and voltage all fine. A 1999 has no pollution stuff. Engine seems to run OK. Have not read the code yet.

 

[SwampSurvivor]

There might not be a code.

My 2000 Cherokee had the battery drawn down quite a ways and the check engine light came on. No codes.

Chalk it up to a Chrysler-ism.

Is the truck heavy enough that it is exempt from emissions testing?

 

[Donald]

Originally Posted By: Miller88
There might not be a code.

My 2000 Cherokee had the battery drawn down quite a ways and the check engine light came on. No codes.

Chalk it up to a Chrysler-ism.

Is the truck heavy enough that it is exempt from emissions testing?


Cummins diesel. No emissions.

 

[DemoFly]

I believe you can cycle the ignition to on off on off on and the CEL code will show on the odometer.

 

[SwampSurvivor]

Originally Posted By: Donald
Originally Posted By: Miller88
There might not be a code.

My 2000 Cherokee had the battery drawn down quite a ways and the check engine light came on. No codes.

Chalk it up to a Chrysler-ism.

Is the truck heavy enough that it is exempt from emissions testing?


Cummins diesel. No emissions.


Right - but, my Cherokee being a station wagon, will fail its emissions inspection if the check engine light is on for something like a battery temperature sensor. Would a stored code cause the truck to fail?

 

[Donald]

I can read the code but am away on business right now.

 

[Donald]

In NY they do not connect to the OBDII to read anything on an old diesel, but you will fail if the CEL is on.

At this point I would like to know what would be related to leaving the vehicle in the "ON or RUN" position for a day.

 

[rjundi]

Just drive it for a few days(or drive cycles) it will go out.

 

[beast3300]

I would disconnect the neg on the battery for a little while.

 

[Clevy]

Originally Posted By: beast3300
I would disconnect the neg on the battery for a little while.



Why. He's got a code reader. Why not clear it with that and see if it returns.

 

[Donald]

The other odd thing is the time is messed up on the radio clock (more than daylight savings) so I am thinking the battery wore down. But it has 2 batteries and the engine started.

 

[KCJeep]

Chrysler products, well Jeeps anyway can get a little crazy with a poor battery or run down.

I imagine it will resolve itself just from normal use.

 

[Donald]

I assume you are correct that it will fix itself.

But if by coincidence there was a real code and it was for low lift pump pressure, then I would not want to run it. Possible damage to the VP44.

 

[The_Eric]

Chryslers can set a code for low battery voltage- maybe that's what's up?

 

[01rangerxl]

Check the code to see if anything set, clear it, and drive it. I bet the code won't come back.