DTC P0204 - Cylinder 4 Injector A Circuit/Open

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

DTC DESCRIPTION P0204 - CYLINDER 4 INJECTOR A CIRCUIT/OPEN

Description: The comprehensive component monitor (CCM) monitors the operation of the fuel injector drivers in the PCM. This DTC sets when the fuel injector circuitry is inoperative.
Possible Causes: VPWR circuit open (if equipped) INJ4 circuit open INJ4 circuit short to ground (direct injection vehicles) INJ4 circuit short to voltage (direct injection vehicles) INJ4RTN circuit open (if equipped) INJ4RTN circuit short to ground (if equipped) INJ4RTN circuit short to voltage (if equipped) Damaged fuel injector 4
Diagnostic Aids: For direct injection vehicles, the INJ4_F PID flags a concern. For all others, the INJ4_F PID flags equals YES.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
Continental 2.0L, Continental 2.7L, Continental 3.0L, EcoSport 1.0L, EcoSport 2.0L, Edge, Escape/Kuga 1.5L, Escape/Kuga 2.0L, Expedition, Explorer 2.3L, Explorer 3.5L GTDI, F-150, Fiesta 1.0L, Fiesta 1.6L GTDI, Flex 3.5L GTDI, Ford GT, Fusion 1.5L, Fusion 2.0L, Fusion 2.7L, MKC, MKT 2.0L, MKT 3.5L, MKZ, Mustang 2.3L, Mustang 5.0L, Nautilus, Navigator, Ranger 2.3L, Taurus 2.0L, Taurus 3.5L GTDI, Transit 3.5L, Transit Connect 1.0L, Transit Connect 2.0L	GO to PINPOINT TEST DI .
All others	GO to PINPOINT TEST KG .