Explain if possible?

[99_SilvrCummins]

My batteries were on their way out for a little bit and I replaced them after it threw P1693 and P1682. Cleared the codes was all set for a while now it is flaring the codes back up pretty consistently. What is it doing?

Also I replaced the alternator last year in the spring. I am just wondering what is causing this and if it is something I need to fix soon.

Side Note: I also pulled the p0602 code last time, it is the first time that code has popped up but I read here that it is common when running a Smarty.

Thanks in advance for your help everyone.

 

[aircop]

0602 common with Smarty. Try checking and cleaning all your grounds.

 

[pushlar84]

definately the smarty for 1693 and 1602. start checking connections for voltage drop or too high resistance and or the green disease