P0626 Volvo Generator Field Terminal Circuit High

Possible causes

– Faulty battery
– 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 Volvo Description

The ECM has detected a fault on the generator field circuit