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P0098 - Intake Air Temperature Sensor 2 Circuit High

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0098 - INTAKE AIR TEMPERATURE SENSOR 2 CIRCUIT HIGH

Description:  Indicates the sensor signal is greater than the self-test maximum. The intake air temperature 2 (IAT2) sensor maximum is 4.6 volts.
Possible Causes: 
  • Open circuit in the harness
  • Sensor signal short to voltage
  • Incorrect harness connection
  • Damaged sensor
Diagnostic Aids:  Monitor the IAT2 PID value. A typical IAT2 temperature should be greater than the IAT1 temperature.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All   refer to PINPOINT TEST DU .
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