Possible causes
– Faulty battery
– Generator drive belt missing or loose
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection
– Generator drive belt missing or loose
– Faulty Generator
– Generator harness is open or shorted
– Generator circuit poor electrical connection
Tech description
If the battery is OK then the alternator is more than likely the problem.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0626 MAZDA OBD Code Description
The ECM has detected a fault on the generator field circuit