I have 2003 Dodge RAM 1500 4.7L V8
Battery is good Alternator new and been tested in the bench and it's working new PCM
still getting this code P0622
any idea how to fix this problem cause it seams like the alternator is not charging the battery which means i have to drive using the battery only.
Thank you in advance,
P0622 Generator field control circuit
If the alternaor and the PCM was replace this problem leaves you with a wiring problem, P0622 are mostly cause when there is a open in the field wire, Another form of P0622 is when the leak detection pump is shorting out,
36.2k questions
32.2k answers
1.3k comments
22.8k users