Ford Ecosport: Engine Cooling - 2.0L Duratec-HE (129kW/175PS) / Diagnosis and Testing - Engine Temperature

Ford Ecosport 2014-2024 Service and Repair Manual / Engine / Engine Cooling - 2.0L Duratec-HE (129kW/175PS) / 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).

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	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	P0125:00	Insufficient Coolant Temp For Closed Loop Fuel Control: 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 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	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	P1285:00	Cylinder Head Overtemperature Condition: No Sub Type Information	GO to Pinpoint Test DL
PCM	P1299:00	Cylinder Head Overtemperature Protection Active: 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).

Symptom	Action
Start/Run/Move > Starting > Hard Start/Long Crank > Always	GO to Pinpoint Test DL
Start/Run/Move > Running > Smoke From Exhaust > Black	GO to Pinpoint Test DX
Driving Performance > Runs Rough > All Running Modes > 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 DX

Pinpoint Tests

PINPOINT TEST DL: CYLINDER HEAD TEMPERATURE (CHT) SENSOR

Introduction
Refer to Wiring Diagrams Cell 022 for schematic and connector information.

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 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 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 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 ECT and 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 P1299:00	Cylinder Head Overtemperature Protection Active: No Sub Type Information	Sets when the PCM detects an engine overheat condition was sensed by the CHT sensor.

Possible Sources

ECT sensor circuitry concern
CHT sensor circuitry concern
Base engine concerns
Engine cooling system concerns
ECT sensor
CHT sensor (6G004)
PCM (12A650)

PINPOINT TEST DX: ENGINE COOLANT TEMPERATURE (ECT) SENSOR

Introduction

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.

Refer to Wiring Diagrams Cell 022 for schematic and connector information.

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 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.

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)

Diagnosis and Testing - Engine Cooling

General Procedures - Coolant Hose

Special Tool(s) / General Equipment Hose Clamp(s) Hose Clamp Remover/Installer Repair WARNING: Always allow the engine to cool before opening the cooling system...

Other information:

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Removal NOTE: LH side shown, RH side similar. NOTE: Removal steps in this procedure may contain installation details. Remove the rear door window control switch. Refer to: Rear Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation)...

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Removal and Installation - Brake Disc Shield

Removal

NOTE: Removal steps in this procedure may contain installation details.

Remove the brake disc.
Refer to: Brake Disc (206-03 Front Disc Brake, Removal and Installation).
Remove the bolts and brake disc.
Torque: 80 lb.in (9 Nm)