DTC P0074: Ambient Air Temperature Sensor Circuit Intermittent/Erratic
P0074 - AMBIENT AIR TEMPERATURE SENSOR CIRCUIT INTERMITTENT/ERRATIC
| Description: | The powertrain control module (PCM) continuously monitors the AAT circuit for concerns. This DTC sets if the PCM detects a sudden change in the ambient air temperature (AAT) sensor signal that changes beyond the minimum or maximum calibrated limit. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the harness and connection. Monitor the sensor PID while wiggling and bending the harness from the sensor to the PCM. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST FA . | ||