P16AA
Intake Air Heater Temperature Sensor Circuit Low Voltage
P16AA is an OBD-II diagnostic trouble code meaning: Intake Air Heater Temperature Sensor Circuit Low Voltage. Common causes: open or short circuit in the sensor circuit, intake air heater temperature sensor malfunction. Estimated repair cost: $17–44.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Problems starting the engine in cold weather
- Increased fuel consumption
- Unstable engine operation at idle
Causes
- Open or short circuit in the sensor circuit
- Intake air heater temperature sensor malfunction
- Connector problems or contact corrosion
- Intake air heater malfunction
- Problems with the engine control unit (rare)
How to Fix
- Check the integrity of the sensor circuit and connectors
- Check the resistance of the temperature sensor
- Clean connector contacts from corrosion
- Replace the intake air heater temperature sensor if necessary
- Check the operation of the intake air heater
Related codes
FAQ
What does the P16AA code mean?
P16AA is an OBD-II diagnostic trouble code that indicates: Intake Air Heater Temperature Sensor Circuit Low Voltage
What causes a P16AA error code?
The most common causes of P16AA include: Open or short circuit in the sensor circuit; Intake air heater temperature sensor malfunction; Connector problems or contact corrosion; Intake air heater malfunction.
How do I fix a P16AA diagnostic trouble code?
To fix P16AA: Check the integrity of the sensor circuit and connectors. Check the resistance of the temperature sensor. Clean connector contacts from corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P16AA?
Yes, but get it checked soon
How much does it cost to fix P16AA?
The estimated repair cost for P16AA is $17–44. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat