P1680 Subaru Control Module Not Programmed

Possible causes

– Engine Control Module (ECM) programm error
– Wrong Engine Control Module (ECM)
– Faulty Engine Control Module (ECM)

Symptoms

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

P1680 Subaru Description

The Engine Control Module (ECM) program does not recognize the vehicles id, or the id is missing in the ECM.