HALP o6 runner Throwing Codes CEL LIGHT, VSC, And TRaction Light came on.

Chec engine and other lights came on this morning when my girlfriend was driving to work in her 4runner. hoping someone can give some insight as to what the codes could mean. showing up all at once.

C1201
C1223
C1241
C1256
P0456

I assumed it was an alternator/battery issue.

I've read elsewhere it could be a bad sensor or a gas cap.

Any input is greatly appreciated and any questions will be answered asap.


sorry for the limited info im posting this at work in free time.. ask away

 

Do you at least have what each code indicates?

Like: C1201engine control system fault? P0456 evaporative emission control system leak? C1223 fault abs control?

P designate power train & C is chassis...

They all occurs at the same time? Did you just kill it and start over?

 

im new to learning about 4runners but the very first common problem on all 4th gens I started to read about was if you have any type of CEL codes related to anything with the brake system, its not hard to fix but it can be a big issue because the master cylinder, ABS, brake pressure pump, or brake booster, its an all in one unit that must be replaced and its not cheap, $2500 from dealer or $500 for aftermarket at auto store or ebay.

google has a lot of info on the vsc abs traction control lights going off and I don't recall any solutions besides replacing that whole unit no matter which function goes bad.

if you are lucky its just telling you its low on brake fluid or that the gas cap is loose or defective