Check Engine Light - P147E & U00AC

[Overland Hunter]

About 600 miles in, check engine light comes on with these codes. (U00AC &P147E) Went to start up Rig this AM and it stated Battery was low with check engine light on and these codes. I have made sure to check nothing was left on overnight and the overhead panel main power switch was off. Has anyone ever encountered this? Additionally now the Battery screen on the display is blank without any readings. Thanks

 

[Stu_Barnes]

I know that codes starting with a 1 are manufacturer specific. P usually designated power train.

 

[Stu_Barnes]

Also a charge overnight wouldn’t go amiss if it thinks the battery charge is low.

 

[Overland Hunter]

Also a charge overnight wouldn’t go amiss if it thinks the battery charge is low.

Thanks, now I cant get any read on the battery at least on the display. Sounds like I'll be calling the dealer in the AM.

 

[Tazzieman]

System reset worth a try?

 

[Stu_Barnes]

If you have access to a multi meter it may be worth getting a reading. Could just be a flat battery or loose battery clamps on the terminal posts?

 

[landmannnn]

The U codes are normally a network/communication error, suggesting a canbus device is not communicating.

 

[Overland Hunter]

If you have access to a multi meter it may be worth getting a reading. Could just be a flat battery or loose battery clamps on the terminal posts?

Thanks, I'll check the multi meter. Dealer was perplexed and have not come across these codes yet. Tried dealer suggestion of disconnecting the battery for 30 min and reconnecting for a reset. Cleaned terminal posts and made sure things were tight, that didnt work either