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2021
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Cherokee Trailhawk
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Repair and Diagnosis
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Engine Performance
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System
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3.2L - DTCS P0073 To P0298
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DTC Troubleshooting
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P0073-Ambient Air Temperature Sensor Circuit High
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Set Condition
Set Condition
The Powertrain Control Module (PCM) detects that the Ambient Air Temperature Sensor input voltage is above approximately 4.9 volts depending on calibration for 3.84 seconds.