P0073 Buick Ambient Air Temperature Sensor Circuit High Input
Possible causes
– Faulty ambient air temperature sensor
– Ambient air temperature sensor harness is open or shorted
– Ambient air temperature sensor circuit poor electrical connection
– Ambient air temperature sensor harness is open or shorted
– Ambient air temperature sensor circuit poor electrical connection
What about the obd code?
The Engine Control Module (ECM) has detected an open or short circuit condition on the Ambient Air Temperature (AAT) sensor circuit.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
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