Lincoln Aviator: Engine Cooling - 3.0L EcoBoost / Diagnosis and Testing - Engine Temperature

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


  Diagnostic Trouble Code Chart


Module   DTC Description Action
  PCM P0116:00 Engine Coolant Temperature Sensor 1 Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test DL
  PCM P0116:00 Engine Coolant Temperature Sensor 1 Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test DX
  PCM P0117:00 Engine Coolant Temperature Sensor 1 Circuit Low: No Sub Type Information   GO to Pinpoint Test DX
  PCM P0118:00 Engine Coolant Temperature Sensor 1 Circuit High: No Sub Type Information   GO to Pinpoint Test DX
  PCM P0119:00 Engine Coolant Temperature Sensor 1 Circuit Intermittent/Erratic: No Sub Type Information   GO to Pinpoint Test DL
  PCM P0119:00 Engine Coolant Temperature Sensor 1 Circuit Intermittent/Erratic: No Sub Type Information   GO to Pinpoint Test DX
  PCM P011E:00 Engine Coolant Temperature 1 / Ambient Air Temperature Correlation: No Sub Type Information   GO to Pinpoint Test DX
  PCM P0125:00 Insufficient Coolant Temp For Closed Loop Fuel Control: No Sub Type Information   GO to Pinpoint Test DL
  PCM P0125:00 Insufficient Coolant Temp For Closed Loop Fuel Control: No Sub Type Information   GO to Pinpoint Test DX
  PCM P0128:00 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature): No Sub Type Information   GO to Pinpoint Test DL
  PCM P0128:00 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature): No Sub Type Information   GO to Pinpoint Test DX
  PCM P017C:00 Cylinder Head Temperature Sensor Circuit Low: No Sub Type Information   GO to Pinpoint Test DL
  PCM P017D:00 Cylinder Head Temperature Sensor Circuit High: No Sub Type Information   GO to Pinpoint Test DL
  PCM P017E:00 Cylinder Head Temperature Sensor Circuit Intermittent/Erratic: No Sub Type Information   GO to Pinpoint Test DL
  PCM P101F:00 Cylinder Head Temperature Sensor 1 Out Of Self Test Range: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1021:00 Cylinder Head Temperature Sensor 2 Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1022:00 Cylinder Head Temperature Sensor 2 Circuit Low: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1023:00 Cylinder Head Temperature Sensor 2 Circuit High: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1024:00 Cylinder Head Temperature Sensor 2 Circuit Intermittent/Erratic: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1025:00 Cylinder Head Temperature Sensor 2 Out Of Self Test Range: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1026:00 Engine Coolant Temperature 1 / Cylinder Head Temperature 2 Correlation: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1116:00 Engine Coolant Temperature Sensor Out Of Self Test Range: No Sub Type Information   GO to Pinpoint Test DX
  PCM P1117:00 Engine Coolant Temperature Sensor Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test DX
  PCM P111B:00 Engine Coolant Warm-Up Not Detected: No Sub Type Information   GO to Pinpoint Test DX
  PCM P1285:00 Cylinder Head Over Temperature Condition: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1288:00 Cylinder Head Temperature Sensor Out Of Self Test Range: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1289:00 Cylinder Head Temperature Sensor Circuit High: No Sub Type Information   GO to Pinpoint Test DL
  PCM P128A:00 Cylinder Head Temperature Sensor Circuit Intermittent/Erratic: No Sub Type Information   GO to Pinpoint Test DL
  PCM P1290:00 Cylinder Head Temperature Sensor Circuit Low: No Sub Type Information   GO to Pinpoint Test DL

Global Customer Symptom Code (GCSC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


  Global Customer Symptom Code Chart


Customer Symptom Action
Start/Run/Move > Running > Smoke From Exhaust > Black   GO to Pinpoint Test DL
Start/Run/Move > Running > Smoke From Exhaust > Black   GO to Pinpoint Test DX
Driving Performance > Idle Quality > Rough > Always   GO to Pinpoint Test DL
Driving Performance > Idle Quality > Rough > Always   GO to Pinpoint Test DX
Driving Performance > Poor Fuel Economy > Combined > Loaded   GO to Pinpoint Test DL
Driving Performance > Poor Fuel Economy > Combined > Loaded   GO to Pinpoint Test DX

Pinpoint Tests


PINPOINT TEST DL : CYLINDER HEAD TEMPERATURE (CHT) SENSOR

NOTE: On a typical vehicle, the CHT sensor is located in the cylinder head and the CHT2 sensor is located in the exhaust manifold.

Normal Operation and Fault Conditions

On applications that do not use an ECT sensor, the CHT sensor is used to determine the engine coolant temperature. To cover the entire temperature range of both the CHT and ECT sensors, the PCM has a dual switching resistor circuit on the CHT input. A graph showing the temperature switching from the COLD END line to the HOT END line, with increasing temperature and back with decreasing temperature is included. Note the temperature to voltage overlap zone. Within this zone it is possible to have either a COLD END or HOT END value at the same temperature. For example, at 90C (194F) the voltage could read either 0.60 volt or 3.71 volts. Refer to the table for the expected values.

Voltage values calculated for VREF = 5 volts. These values can vary by 15% due to sensor and VREF variations.

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0116:00 Engine Coolant Temperature Sensor 1 Circuit Range/Performance: No Sub Type Information Sets when the PCM detects the engine coolant temperature or cylinder head temperature value is higher than the calibrated value and could prevent one or more OBD monitors from completing. The PCM runs this logic after an engine off and a calibrated soak period (typically 6 hours). This soak period allows the intake air temperature and the engine coolant temperature or cylinder head temperature to stabilize and not differ by greater than a calibrated value. This DTC sets when all of the following conditions are met:
  • The engine coolant temperature at engine start exceeds the intake air temperature at engine start by greater than a calibrated value, typically 17°C (30°F).
  • The engine coolant temperature exceeds a calibrated value, typically 107°C (225°F).
  • The fuel system, heated oxygen and misfire monitors have not completed.
  • The calibrated time to set this DTC has expired.
  • Make sure the intake air temperature and the engine coolant temperature or cylinder head temperature are similar when the engine is cold. Also make sure the ECT or CHT sensor and the actual engine operating temperatures are the same.
PCM P0119:00 Engine Coolant Temperature Sensor 1 Circuit Intermittent/Erratic: No Sub Type Information Sets when the PCM detects the ECT circuit is intermittently open or shorted while the engine is running.
PCM P0125:00 Insufficient Coolant Temp For Closed Loop Fuel Control: No Sub Type Information Sets when the PCM detects the ECT or the CHT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting the engine. Compare the thermostat specification to the actual engine coolant temperature using the engine temperature PID ( ECT or CHT. The temperature reading should be similar when the engine is at a normal operating temperature.
PCM P0128:00 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature): No Sub Type Information Sets when the PCM detects the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time. Refer to the Thermostat Monitor description for additional information.
PCM P017C:00 Cylinder Head Temperature Sensor "A" Circuit Low: No Sub Type Information Sets when the PCM detects the CHT circuit is shorted to ground. The DTC P0117 may also be reported when this DTC sets. Either of these Diagnostic Trouble Codes (DTCs) illuminates the MIL.
PCM P017D:00 Cylinder Head Temperature Sensor "A" Circuit High: No Sub Type Information Sets when the PCM detects a CHT circuit concern is detected. The DTC P0118 may also be reported when this DTC sets. Either of these Diagnostic Trouble Codes (DTCs) illuminate the MIL.
PCM P017E:00 Cylinder Head Temperature Sensor "A" Circuit Intermittent/Erratic: No Sub Type Information Sets when the PCM detects the CHT circuit becomes intermittently open or short while the engine is running.
PCM P101F:00 Cylinder Head Temperature Sensor 1 Out Of Self Test Range: No Sub Type Information This DTC sets when the CHT sensor is out of self-test range. The engine is not at a normal operating temperature.
PCM P1021:00 Cylinder Head Temperature Sensor 2 Circuit Range/Performance: No Sub Type Information Sets when the PCM detects the cylinder head temperature value is higher than the calibrated value and could prevent one or more OBD monitors from completing. The PCM runs this logic after an engine off and a calibrated soak period (typically 6 hours). This soak period allows the intake air temperature and the cylinder head temperature to stabilize and not differ by greater than a calibrated value. This DTC sets when all of the following conditions are met:
  • The cylinder head temperature at engine start exceeds the intake air temperature at engine start by greater than a calibrated value, typically 17°C (30°F).
  • The cylinder head temperature exceeds a calibrated value, typically 107°C (225°F).
  • The fuel system, heated oxygen and misfire monitors have not completed.
  • The calibrated time to set this DTC has expired.
  • Make sure the intake air temperature and the cylinder head temperature are similar when the engine is cold.Make sure the intake air temperature and the cylinder head temperature are similar when the engine is cold.
  • Also make sure the CHT sensor and the actual engine operating temperatures are the same. Also make sure the CHT sensor and the actual engine operating temperatures are the same.
PCM P1022:00 Cylinder Head Temperature Sensor 2 Circuit Low: No Sub Type Information Sets when the PCM detects a Cylinder Head Temperature 2 (CHT2) circuit concern is present.
PCM P1023:00 Cylinder Head Temperature Sensor 2 Circuit High: No Sub Type Information Sets when the PCM detects a Cylinder Head Temperature 2 (CHT2) circuit concern is present.
PCM P1024:00 Cylinder Head Temperature Sensor 2 Circuit Intermittent/Erratic: No Sub Type Information Sets when the PCM detects a Cylinder Head Temperature 2 (CHT2) circuit concern is intermittently present while the engine is running.
PCM P1025:00 Cylinder Head Temperature Sensor 2 Out Of Self Test Range: No Sub Type Information Sets when the PCM detects the CHT 2 sensor is out of self-test range. The engine is not at a normal operating temperature. Bring the engine to operating temperature and repeat the self-test. If the engine overheats, check the cooling system. Refer to the appropriate 303-03 section, Engine Cooling, to diagnose the engine overheats symptom.
PCM P1026:00 Engine Coolant Temperature 1 / Cylinder Head Temperature 2 Correlation: No Sub Type Information Sets when the PCM detects the ECTand Cylinder Head Temperature 2 (CHT2) sensor readings differ by greater than a calibrated value. Make sure the ECT and CHT 2 sensor readings are within 17ºC (30ºF) of each other after 6 hours at ambient temperature.
PCM P1285:00 Cylinder Head Overtemperature Condition: No Sub Type Information Sets when the PCM detects an engine overheat condition was sensed by the CHT sensor.
PCM P1288:00 Cylinder Head Temperature Sensor Out Of Self Test Range: No Sub Type Information Sets when the PCM detects the CHT sensor is out of self-test range. The engine is not at a normal operating temperature. Bring the engine to operating temperature. If cold, repeat the self-test. If the engine overheats, check the cooling system. Refer to the appropriate 303-03 section, Engine Cooling, The Engine Overheats for cooling system diagnosis.
PCM P1289:00 Cylinder Head Temperature Sensor Circuit High: No Sub Type Information Sets when the PCM detects a CHT circuit open concern is present. The DTC P0118 may also set when this DTC sets.
PCM P128A:00 Cylinder Head Temperature Sensor Circuit Intermittent/Erratic: No Sub Type Information Sets when the PCM detects the CHT circuit is intermittently open or short while the engine is running.
PCM P1290:00 Cylinder Head Temperature Sensor Circuit Low: No Sub Type Information Sets when the PCM detects a CHT circuit short to ground concern is present. The DTC P0117 may also set when this DTC sets.

Possible Sources

  • ECT sensor circuitry concern
  • CHT sensor circuitry concern
  • Base engine concerns
  • Engine cooling system concerns
  • ECT sensor
  • CHT sensor (6G004)
  • PCM (12A650)
 Internet Explorer version 11 or greater is required to perform this Pinpoint Test.
PINPOINT TEST DX : ENGINE COOLANT TEMPERATURE (ECT) SENSOR

NOTE: Engine coolant temperature must be greater than 10°C (50°F) to pass the KOEO self-test and greater than 82°C (180°F) to pass the KOER self-test.

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

Voltage values calculated for VREF equals 5 volts. These values may vary by 15% due to sensor and VREF variations.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0116:00 Engine Coolant Temperature Sensor 1 Circuit Range/Performance: No Sub Type Information Sets when PCM detects the engine coolant temperature or cylinder head temperature value is higher than the calibrated value and could prevent one or more OBD monitors from completing. The PCM runs this logic after an engine off and a calibrated soak period (typically 6 hours). This soak period allows the intake air temperature and the engine coolant temperature or cylinder head temperature to stabilize and not differ by greater than a calibrated value. This DTC sets when all of the following conditions are met:
  • The engine coolant temperature at engine start exceeds the intake air temperature at engine start by greater than a calibrated value, typically 17°C (30°F).
  • The engine coolant temperature exceeds a calibrated value, typically 107°C (225°F).
  • The fuel system, heated oxygen and misfire monitors have not completed.
  • The calibrated time to set this DTC has expired.
Make sure the intake air temperature and the engine coolant temperature or cylinder head temperature are similar when the engine is cold. Also make sure the .ECT or CHT sensor and the actual engine operating temperatures are the same.
PCM P1116:00 Engine Coolant Temperature Sensor Out Of Self Test Range: No Sub Type Information Sets when the PCM detects the ECT sensor is out of self-test range. The correct range is 0.3 to 3.7 volts. The engine coolant temperature must be greater than 10°C (50°F) to pass the KOEO self-test and greater than 82°C (180°F) to pass the KOER self-test.
PCM P0117:00 Engine Coolant Temperature Sensor 1 Circuit Low: No Sub Type Information Sets when PCM detects the ECT sensor signal is less than the self-test minimum. The ECT sensor signal minimum is 121º C (250º F). A concern is present if the ECT (TEMP) PID reading is greater than 121º C (250º F) with the ignition ON engine OFF or during any engine operating mode.
PCM P0118:00 Engine Coolant Temperature Sensor 1 Circuit High: No Sub Type Information Sets when PCM detects the ECT sensor signal is greater than the self-test maximum. The ECT sensor signal maximum is -50º C (-58º F). A concern is present if the ECT (TEMP) PID reading is less than -50º C (-58º F) with the ignition ON engine OFF or during any engine operating mode.
PCM P0119:00 Engine Coolant Temperature Sensor 1 Circuit Intermittent/Erratic: No Sub Type Information Sets when PCM detects the ECT circuit is intermittently open or shorted while the engine is running.
PCM P011E:00 Engine Coolant Temperature 1 / Ambient Air Temperature Correlation: No Sub Type Information Sets when PCM detects the ECT and ambient air temperature sensor readings differ by greater than a calibrated value. Make sure the ECT sensor, ambient air temperature sensor and IAT sensor readings are within 18ºC (32.4ºF) of each other after 6 to 8 hours at a stabilized ambient temperature and the vehicle has not been in direct sunlight.
PCM P0125:00 Insufficient Coolant Temp For Closed Loop Fuel Control: No Sub Type Information Sets when PCM detects the ECT or the CHT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting the engine. Compare the thermostat specification to the actual engine coolant temperature using the engine temperature PID( ECT or CHT). The temperature reading should be similar when the engine is at a normal operating temperature.
PCM P0128:00 Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature): No Sub Type Information Sets when PCM detects the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time. Refer to the Thermostat Monitor description for additional information.
PCM P1117:00 Engine Coolant Temperature Sensor Circuit Intermittent: No Sub Type Information Sets when PCM detects the ECT circuit is intermittently open or short while the engine is running.
PCM P111B:00 Engine Coolant Warm-up Not Detected: No Sub Type Information Sets when PCM detects the the engine coolant temperature does not rise by a calibrated threshold value when compared to the inferred ECT. Verify the engine cooling system is operating correctly. Refer to the appropriate 303-03 section, Engine Cooling.

Possible Sources

  • Low engine coolant
  • Cooling system concern
  • ECT or CHT sensor circuitry concern
  • Coolant bypass valve
  • Thermostat
  • Ambient air temperature sensor
  • CHT sensor
  • ECT sensor (12A648)
  • PCM (12A650)
 Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

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