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.
4-86 Powertrain DTC Charts and Descriptions
Diagnostic Trouble Code (DTC) Charts and Descriptions
P0627 - Fuel Pump A Control Circuit/Open
Description: The fuel pump control module monitors the fuel pump module and secondary circuits for a concern. If the fuel
pump control module detects a concern with the fuel pump module or secondary circuits, the fuel pump control module sends an 80% duty cycle signal on the fuel pump monitor (FPM) circuit to report the concern to the PCM. This DTC sets when the fuel pump control module is still reporting a concern with the fuel pump module or secondary circuits after a calibrated amount of time.
Possible Causes: • FPPWR circuit open
• FPPWR circuit short to ground
• FPRTN circuit open
• FPPWR circuit short to voltage
• FPRTN circuit short to voltage
• Damaged fuel pump assembly
• Damaged fuel pump control module
Diagnostic Aids: Check for any harness concerns. The fuel pump control module controls the speed of the fuel pump module by
supplying a variable voltage to the fuel pump module on the FPPWR circuit.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test KC.
P062B - Internal Control Module Fuel Injector Control Performance
Description: This DTC sets when an error occurs in the PCM.
Possible Causes: • Damaged PCM
Diagnostic Aids:
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test QE.
P062C - Internal Control Module Vehicle Speed Performance
Description: This DTC sets when a network communication error occurred in the PCM.
Possible Causes: • Module communications network concerns
• Output shaft speed (OSS) sensor concern
• Anti-lock brake system (ABS) concern
Diagnostic Aids: Repair any ABS or TCM DTCs, ABS or TCM related DTCs in other modules, or vehicle communication
concerns.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test QE.
P062F - Internal Control Module EEPROM Error
Description: The PCM read only memory (ROM) has been corrupted.
Possible Causes: • Aftermarket performance products
• An attempt was made to change the calibration
• PCM programming error
• PCM internal software error
• Damaged PCM
Diagnostic Aids: Reprogram or update the calibration. Check for other DTCs or drive symptoms for further action. Check for
aftermarket performance products before installing a new PCM. If it is necessary to install a new PCM, refer to Section 2, Flash Electrically Erasable Programmable Read Only Memory (EEPROM), Programming the VID Block for a Replacement PCM.
Application Key On Engine Off Key On Engine Running Continuous Memory
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
P062x -
Description:
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.