PCM is unable to regulate generator field current.
Check for 12 volts to alternator field.
Check for open field in alternator; connections, brushes,
alternator field winding continuity.
Check wiring between alternator field and PCM.
Possible bad PCM.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.