Question

OK, I have a 1999 Plymouth Grand Voyager 3.3L and getting a p0622 code new and the bat tested fine now what I'm stumped

Answer 1

P0622 DODGE - Generator Field Not Switching

 

Possible causes

- Generator circuit short to ground.
- Generator circuit short to voltage.
- Generator circuit open.
- Battery-sense circuit open.
- Generator drive mechanism. (belt)
- Damaged generator/regulator assembly.
- Damaged PCM

 

Possible solution

- Battery
- Alternator

 

P0622 DODGE Description

The PCM monitors generator load from the generator/regulator in the form of frequency. The frequency range is determined by the temperature of the voltage regulator, where 97% indicates full load, and below 6% indicates no load.