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P0204 - Cylinder 4 Injector Circuit/Open

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2016 Lincoln Navigator, 2016 Lincoln MKZ, 2016 Lincoln MKX, 2016 Lincoln MKT, and 2016 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P0204 - CYLINDER 4 INJECTOR 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
  • Damaged PCM
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 
Edge 2.0L,
Edge 2.7L,
Escape/Kuga 1.6L,
Escape/Kuga 2.0L,
Expedition,
Explorer 2.3L,
Explorer 3.5L GTDI,
F-150 2.7L,
F-150 3.5L GTDI,
Fiesta 1.0L,
Fiesta 1.6L GTDI,
Flex 3.5L GTDI,
Focus,
Fusion 1.5L,
Fusion 2.0L,
MKC,
MKS 3.5L,
MKT 2.0L,
MKT 3.5L,
MKX 2.0L,
MKX 2.7L,
MKZ 2.0L,
Mustang 2.3L,
Navigator,
Taurus 2.0L,
Taurus 3.5L GTDI,
Transit 3.5L,
Transit Connect 1.6L		 GO to Pinpoint Test DI .
All others GO to Pinpoint Test KG .
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