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.
Powertrain DTC Charts and Descriptions 4-141
Diagnostic Trouble Code (DTC) Charts and Descriptions
P26Bx -
Description:
Possible Causes:
Diagnostic Aids: Refer to the Workshop Manual Section 303-03, Engine Cooling to continue diagnosis.
Application Key On Engine Off Key On Engine Running Continuous Memory
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
P26EA - Fuel Pump Control Module B
Description: This DTC sets when the fuel pump control module 2 detects an internal concern.
Possible Causes: • Damaged fuel pump control module 2
Diagnostic Aids: Clear the PCM DTCs. Repeat the self-test. If the DTC is retrieved again, install a new fuel pump control module
2. Refer to the Workshop Manual Section 303-04, Fuel Charging And Controls.
Application Key On Engine Off Key On Engine Running Continuous Memory
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
P26xx -
Description:
Possible Causes:
Diagnostic Aids: Refer to the appropriate Workshop Manual Section or the Master DTC Chart on the Professional Technician
Society (PTS) web site to continue diagnosis.
Application Key On Engine Off Key On Engine Running Continuous Memory
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
P2A01 - O2 Circuit Range / Performance Bank 1, Sensor 2
Description: This DTC sets when the heated oxygen sensor bank 1, sensor 2 (HO2S12) voltage is out of range low for a
calibrated period of time.
Possible Causes: • Crossed HO2S12 and SIGRTN circuits
• Corrosion
• Incorrect connections
• Contaminated HO2S12
• Deteriorating HO2S12
• Damaged HO2S12
Diagnostic Aids: Inspect the connectors for signs of damage, water intrusion or corrosion.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DW.
P2A04 - O2 Circuit Range / Performance Bank 2, Sensor 2
Description: This DTC sets when the heated oxygen sensor bank 2, sensor 2 (HO2S22) voltage is out of range low for a
calibrated period of time.
Possible Causes: • Crossed HO2S22 and SIGRTN circuits
• Corrosion
• Incorrect connections
• Contaminated HO2S22
• Deteriorating HO2S22
• Damaged HO2S22
Diagnostic Aids: Inspect the connectors for signs of damage, water intrusion or corrosion.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DW.
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.