Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
4-38 Powertrain DTC Charts and Descriptions
Diagnostic Trouble Code (DTC) Charts and Descriptions
P0192 - Fuel Rail Pressure Sensor A Circuit Low (Continued)
Diagnostic Aids: A FRP PID value during ignition ON, engine OFF or ignition ON, engine running less than 0.3 volt indicates a
concern is present.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DD.
P0193 - Fuel Rail Pressure Sensor A Circuit High
Description: This DTC sets when the PCM detects the FRP circuit is open or shorted to voltage.
Possible Causes: • FRP signal short to voltage
• FRP signal open
• Damaged FRP sensor
Diagnostic Aids: An FRP signal high condition can be caused by any number of conditions, including a short on FRP signal to
VREF, an open FRP signal or signal return. The FRP signal line is pulled up by the PCM and VREF at the sensor, and down by the sensor through SIGRTN.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DD.
P0201 - Cylinder 1 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)
• INJ1 circuit open
• INJ1 circuit short to ground (direct injection vehicles)
• INJ1 circuit short to voltage (direct injection vehicles)
• INJ1RTN circuit open (if equipped)
• INJ1RTN circuit short to ground (if equipped)
• INJ1RTN circuit short to voltage (if equipped)
• Damaged fuel injector 1
• Damaged PCM
Diagnostic Aids: For direct injection vehicles, the INJ1_F PID flags a concern. For all others, the INJ1_F PID flags equals YES.
Application Key On Engine Off Key On Engine Running Continuous Memory
Edge 2.0L, GO to Pinpoint Test DI. 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
2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.