Common Symptoms
- Check Engine Light illuminated
- HVAC system may not operate correctly
- Erratic temperature gauge readings
- Cooling fans may run continuously or not at all
- No noticeable drivability issues in most cases
Most Likely Root Causes
- Damaged or corroded wiring harness to ambient air temperature sensor
- Intermittent connection at sensor connector
- Failing ambient air temperature sensor
- Water intrusion or corrosion at sensor or connector
- Loose or broken sensor mounting bracket causing vibration
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Component Location
Ambient air temperature sensor is typically mounted in front of the radiator or behind the front bumper to measure outside air temperature.
Manufacturer Notes
This code typically indicates an intermittent fault requiring careful inspection of connectors and wiring rather than immediate sensor replacement.
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