P1663 FORD – Fuel Demand Command Signal Circuit Malfunction

P1663 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1663 FORD Possible Causes

Fuel Demand Command Signal open circuit,Faulty Injector Driver Module (IDM),Injector Driver Module (IDM) harness is open or shorted,Injector Driver Module (IDM) circuit poor electrical connection

P1663 FORD Description

The P1663 code indicates that the Powertrain Control Module (PCM) has detected a failure on the Fuel Delivery Command Signal (FDCS) line.