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.
4-24 Powertrain DTC Charts and Descriptions
Diagnostic Trouble Code (DTC) Charts and Descriptions
P0116 - Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance (Continued)
Edge 2.7L, Escape/Kuga 2.0L, Explorer 2.3L, F-150 2.7L, Fiesta, Focus, Fusion 1.5L, Fusion 2.0L, KA, MKC, MKT 2.0L, MKX 2.0L, MKX 2.7L, MKZ 2.0L, Mustang 2.3L, Taurus 2.0L, Transit Connect 1.6L
All others GO to Pinpoint Test DL.
P0117 - Engine Coolant Temperature (ECT) Sensor 1 Circuit Low
Description: This DTC sets when the ECT sensor signal is less than the self-test minimum. The ECT sensor signal minimum
is 121°C (250°F).
Possible Causes: • ECT circuit short to ground
• Damaged ECT sensor
• Incorrect harness connection
Diagnostic Aids: A concern is present if the ECT (TEMP) PID reading is greater than 121° C (250° F) with the ignition ON engine
OFF or during any engine operating mode.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DX.
P0118 - Engine Coolant Temperature (ECT) Sensor 1 Circuit High
Description: This DTC sets when the ECT sensor signal is greater than the self-test maximum. The ECT sensor signal
maximum is -50° C (-58° F).
Possible Causes: • ECT circuit open
• ECT circuit short to voltage
• Incorrect harness connection
• Damaged ECT sensor
Diagnostic Aids: A concern is present if the ECT (TEMP) PID reading is less than -50° C (-58° F) with the ignition ON engine
OFF or during any engine operating mode.
Application Key On Engine Off Key On Engine Running Continuous Memory
All GO to Pinpoint Test DX.
P0119 - Engine Coolant Temperature (ECT) Sensor 1 Circuit Intermittent/Erratic
Description: This DTC sets when the ECT circuit is intermittently open or shorted while the engine is running.
Possible Causes: • Damaged ECT harness
• Damaged ECT sensor
• Damaged ECT harness connector
• Low engine coolant
Diagnostic Aids: Monitor the engine coolant temperature or the cylinder head temperature on a scan tool, look for sudden
changes in the reading when the harness is wiggled or the sensor is tapped.
Application Key On Engine Off Key On Engine Running Continuous Memory
EcoSport, GO to Pinpoint Test DX. Edge 2.0L, Edge 2.7L, Escape/Kuga 2.0L,
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.