P0070

Ambient Air Temperature Sensor Circuit

Q: What does fault code P0070 mean?

Ambient Air Temperature Sensor Circuit. The ambient air temperature sensor signal is outside the reasonable range or shows an unreasonable difference compared to other temperature sensor readings.

Q: What are the possible causes of P0070?

Ambient temperature sensor failed (internal open or short); Sensor wiring harness poor contact; Sensor obstructed or improperly located; ECM fault.

Severity: Low Fuel & Air Metering Generic Code

Detailed Description

The ambient air temperature sensor signal is outside the reasonable range or shows an unreasonable difference compared to other temperature sensor readings.

Possible Causes

Ambient temperature sensor failed (internal open or short)

Sensor wiring harness poor contact

Sensor obstructed or improperly located

ECM fault.

Solutions & Repair Guide

Measure sensor resistance at different temperatures and compare with standard values; Check connector for corrosion or looseness; Confirm the sensor installation location is well-ventilated; Check wiring if the sensor is normal.

Disclaimer: The information above is for reference only and does not constitute professional repair advice. Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.