jumped with a jump pack now check eng, skid light, 4lo light flashing What did I do?

Battery went just low enough not to start used my jump pack. Started now skid light and check engine light or on and 4lo light flashing. I have never used the 4lo? I have a reader just in another town in another car. Truck seems to drive normal no issues. Tried cycling through 2wd 4hi 4lo and back. turned off and on twice. Haven't had a chance to remove battery lead. Any ideas? Did I fry something upon jumping?

 

If your battery is weak/ old, it can cause all sorts of weird stuff.

 

Thanks. There is that. I left a door open last night. I am not sure how old this battery is I would have to look. I cant remember if I replaced it since I bought this truck or not but haven't had any issues with it.

 

Solid check engine, vsc and a flashing 4lo indicates a weak battery. See if you can get the battery load tested?
If it has a good charge you can try disconnecting the battery terminals for 10 minutes to see if it clears. If you have a weak cell it will still keep the Christmas tree effect going.

 

Thanks!!! Will do!

 

If it's close to 3 years old or older, replace it. An old battery will quit on you very quick. It will start great one day, and the next day it's dead.

 

Thanks to everyone after it sat at work for the day everything was fine started right up no lights on or flashing. Thanks for all the info. I do love my jump packs for exactly the time you mention Tundra 234 I always try to get every day out of a battery.