P1014 - Wastegate Control Pressure Circuit Intermittent/Erratic

4-98 Powertrain DTC Charts and Descriptions

Diagnostic Trouble Code (DTC) Charts and Descriptions

P1014 - Wastegate Control Pressure Circuit Intermittent/Erratic (Continued) Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test HN.

P1015 - Wastegate Control Pressure Lower Than Expected

Description: This DTC sets when the measured wastegate vacuum sensor reading is less than the expected reading by

greater than the calibrated threshold and the fault timer has exceeded the calibrated time threshold.

Possible Causes: • Restricted vent tube from the turbocharger wastegate regulating valve to the intake air tube

• Damaged turbocharger wastegate regulating valve

• Contaminated or restricted wastegate vacuum sensor

• Damaged wastegate vacuum sensor

Diagnostic Aids: The typical difference threshold is 16.93 kPa (2.46 psi) and time threshold is 5 seconds.

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test HN.

P1016 - Wastegate Control Pressure Higher Than Expected

Description: This DTC sets when the measured wastegate vacuum sensor reading is higher than the expected reading by

greater than the calibrated threshold and the fault timer has exceeded the calibrated time threshold.

Possible Causes: • Leak in control tube between the turbocharger wastegate regulating valve and the wastegate actuator

• Leak in the tube between the vacuum reservoir and the turbocharger wastegate regulating valve

• Damaged turbocharger wastegate regulating valve

Diagnostic Aids: The typical difference threshold is 16.93 kPa (2.46 psi) and time threshold is 5 seconds.

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test HN.

P101F - Cylinder Head Temperature Sensor 1 Out Of Self-Test Range

Description: This DTC sets when the cylinder head temperature (CHT) sensor is out of self-test range. The engine is not at a

normal operating temperature.

Possible Causes: • Cold engine

• Engine overheating

• Low engine coolant level

Diagnostic Aids: Bring the engine to operating temperature and repeat the self-test. If the engine overheats, check the cooling

system. Refer to the Workshop Manual Section 303-03, Engine Cooling, to diagnose the engine overheats symptom.

Application Key On Engine Off Key On Engine Running Continuous Memory

All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.

P1021 - Cylinder Head Temperature Sensor 2 Circuit Range/Performance

Description: This DTC sets when the cylinder head temperature value is higher than the calibrated value and could prevent

one or more on board diagnostic (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.

Possible Causes: • Cylinder head temperature 2 (CHT2) sensor

• Coolant system concern

Diagnostic Aids: 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.

2016 Powertrain Control/Emissions Diagnosis, Gasoline Engines, 3/2015