P0111 - Intake Air Temperature (IAT) Sensor 1 Circuit Range/Performance
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2014 Lincoln Navigator, 2014 Lincoln MKZ, 2014 Lincoln MKX, 2014 Lincoln MKT, and 2014 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
P0111 - INTAKE AIR TEMPERATURE (IAT) SENSOR 1 CIRCUIT RANGE/PERFORMANCE
| For Vehicles With 3.5L GTDI Engine | |||
| 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 (CAC_T) 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. |
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Possible Causes:
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| 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). |
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Possible Causes:
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| 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 |
| Explorer 3.5L GTDI, Flex 3.5L GTDI, MKS 3.5L, MKT 3.5L, Taurus 3.5L GTDI |
GO to PINPOINT TEST EA: PRESSURE AND TEMPERATURE SENSOR CORRELATION . | ||
| F-150 3.5L | GO to PINPOINT TEST DN: PRESSURE AND TEMPERATURE SENSORS . | ||
| All others | GO to PINPOINT TEST DA: INTAKE AIR TEMPERATURE (IAT) SENSOR . | ||