|P0074 – The sensor signal to the powertrain control module (PCM) is intermittent.|
|Description: The powertrain control module (PCM) continuously monitors the AAT circuit for concerns. If the PCM detects a sudden change in the AAT signal that changes beyond the minimum or maximum calibrated limit, the DTC sets.
Possible Causes: • Loose electrical connection
• Damaged AAT sensor
Diagnostic Aids: Check the harness and connection. Monitor the sensor PID while wiggling and bending the harness from the sensor to the PCM.