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.
4-138 Powertrain DTC Charts and Descriptions
Diagnostic Trouble Code (DTC) Charts and Descriptions
P2510 - ECM / PCM Power Relay Sense Circuit Range/Performance (Continued)
Diagnostic Aids: The INJPWRM PID voltage reading should be 0 volts when the ignition is in the OFF, ACC or LOCK position.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test B.
P253x -
Description:
Possible Causes:
Diagnostic Aids: Refer to the Workshop Manual Section 303-14, Electronic Engine 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.
P25Bx -
Description:
Possible Causes:
Diagnostic Aids: Refer to the Workshop Manual Section 303-14, Electronic Engine 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.
P260F - Evaporative System Monitoring Processor Performance
Description: This DTC sets when a concern is detected internal to the PCM. The microprocessor that controls the engine off
natural vacuum (EONV) leak check monitor is separate from the main processor within the PCM.
Possible Causes: • Module communications network concerns
• PCM calibration level
• Damaged PCM
Diagnostic Aids: Verify the PCM is at the latest calibration level. Reprogram if necessary.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test HX.
P2610 - ECM/PCM Engine Off Timer Performance
Description: This DTC sets when the difference between the engine off time and the central processing unit (CPU) time
exceeds a calibrated limit for a calibrated amount of time.
Possible Causes: • Incorrect or intermittent battery cable connections
• KAPWR circuit to PCM concern
• Engine coolant temperature (ECT) sensor concern
• Engine cooling system concerns
• Electrical interference around vehicle or PCM
Diagnostic Aids: Verify the PCM, remote function actuator (RFA) and instrument panel control (IPC) module are at the latest
calibration level.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test QB.
P2626 - O2 Sensor Positive Current Trim Circuit/Open (Bank 1 Sensor 1)
Description: During deceleration fuel shut-off (DFSO) the PCM monitors the integrity of the UO2SPCT11 circuit by
comparing the actual oxygen sensor voltage signal to an expected oxygen sensor voltage signal. This DTC sets when the actual oxygen sensor voltage exceeds the maximum expected voltage threshold for a specified amount of time.
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.