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.
4-2 Powertrain DTC Charts and Descriptions
Diagnostic Trouble Code (DTC) Charts and Descriptions
Diagnostic Trouble Code (DTC) Charts and Descriptions
NOTE: An X equals any number 0 through 9 or the letter A through F.
P0001 - Fuel Volume Regulator Control Circuit/Open
Description: This DTC sets when the PCM detects high or low voltage on the FVR and FVRRTN circuits.
Possible Causes: • FVR circuit open
• FVRRTN circuit open
• Fuel volume regulator solenoid coil open
Diagnostic Aids:
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test HP.
P0003 - Fuel Volume Regulator Control Circuit Low
Description: This DTC sets when the PCM detects high or low voltage on the FVR and FVRRTN circuits.
Possible Causes: • FVR circuit short to ground
• FVRRTN circuit short to ground
Diagnostic Aids: A FVRRTN circuit short to ground may damage the solenoid coil. If P0001 is retrieved after a circuit repair,
check the solenoid coil for an open circuit.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test HP.
P0004 - Fuel Volume Regulator Control Circuit High
Description: This DTC sets when the PCM detects high or low voltage on the FVR and FVRRTN circuits.
Possible Causes: • FVR circuit short to FVRRTN circuit
• FVRRTN circuit short to voltage
Diagnostic Aids:
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test HP.
P000A - Intake A Camshaft Position Slow Response Bank 1
Description: The PCM monitors and evaluates the response of the actual position on a target position change. The setpoint
and camshaft position are saved at the beginning of a setpoint change. If this change over time is large enough (gradient), the camshaft phasing change is evaluated. If the change after the diagnostic time is smaller than a threshold, a slow response is detected, and if the value is greater, then there is no concern. By detecting a concern, an antibounce counter is incremented otherwise the counter is decremented. This DTC sets when the counter exceeds an adjustable limit.
Possible Causes: • Variable camshaft timing (VCT) unit to camshaft alignment
• Erratic camshaft position due to low oil pressure
• Oil flow restriction in the oil passages or the VCT valve body
• Camshaft advance mechanism binding (VCT unit)
• Damaged VCT phaser
• Radio frequency interference
Diagnostic Aids: This DTC may be accompanied by other DTCs. Diagnose all camshaft position (CMP) sensor DTCs first. If no
CMP sensor related DTCs are present, continue to follow diagnosis for this DTC. This DTC is a functional check of the VCT unit. Diagnose any base engine concerns related to the engine oil pressure or engine timing. Refer to the Workshop Manual Section 303-00, Engine System, Oil Pressure Test, to check the engine oil pressure. Refer to the Workshop Manual Section 303-01, Engine, to check the engine timing and VCT phasers.
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.