MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Powertrain Control-Emissions Diagnosis

P0107 - Manifold Absolute Pressure (MAP)/Barometric Pressure (BARO) Sensor Low

Powertrain Control-Emissions Diagnosis

Ford gasoline diagnostic supplementReference 4,809 / 6,619HTML edition
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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.

4-22 Powertrain DTC Charts and Descriptions

Diagnostic Trouble Code (DTC) Charts and Descriptions

P0107 - Manifold Absolute Pressure (MAP)/Barometric Pressure (BARO) Sensor Low (Continued)

Possible Causes: • MAP circuit short to ground

• VREF circuit open

• VREF circuit short to ground

• Damaged MAP sensor

Diagnostic Aids:

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test DM.

P0108 - Manifold Absolute Pressure (MAP)/Barometric Pressure (BARO) Sensor High

Description: This DTC sets when the manifold absolute pressure (MAP) sensor operating voltage is greater than the

maximum allowable calibrated parameter of 4.96 volts.

Possible Causes: • VREF circuit short to voltage

• MAP circuit open

• MAP circuit short to voltage

Diagnostic Aids:

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test DM.

P0109 - Manifold Absolute Pressure (MAP)/Barometric Pressure (BARO) Sensor Intermittent

Description: This DTC sets when the manifold absolute pressure (MAP) sensor signal is intermittent.

Possible Causes: • MAP circuit intermittent open

• MAP circuit intermittent short to voltage

• MAP circuit intermittent short to ground

• Damaged MAP sensor

• Incorrect harness connections

Diagnostic Aids: Check the harness and connection.

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test DM.

P0111 - Intake Air Temperature (IAT) Sensor 1 Circuit Range/Performance

For Vehicles With 2.7L And 3.5L GTDI Engines

Description: This DTC sets when either of the following conditions are present.

When the IAT sensor PID does not correlate with the charge air cooler temperature (CACT) sensor or the intake air temperature 2 (IAT2) sensor PIDs at ignition ON. When the IAT sensor PID exceeds the maximum calibrated temperature threshold while driving.

Possible Causes: • Slow responding IAT sensor

• Damaged IAT sensor

Diagnostic Aids: The IAT sensor is located on the air filter housing.

For All Others

Description: This DTC sets when the intake air temperature value is higher than a calibrated value indicating that the

rationality test has failed 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 to 8 hours). This soak period allows the intake air temperature (IAT) sensor and other temperature sensors to stabilize and not differ by greater than a calibrated value. DTC P0111 sets when the IAT sensor value at engine start exceeds the other temperature sensors by greater than a calibrated value, typically 17°C (30°F).

Possible Causes: • Damaged IAT sensor

Diagnostic Aids: Make sure the IAT reading and the other temperature sensor readings are similar when the engine is cold.

Application Key On Engine Off Key On Engine Running Continuous Memory

All GO to Pinpoint Test DA.

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

Source reference 4809

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.