Possible causes

– Faulty battery
– Generator drive belt missing or loose
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection

Tech notes

If the battery is OK then the alternator is more than likely the problem.

When is the code detected?

The Engine Control Module (ECM) has detected a fault on the generator field circuit

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)