P01AA
Alternative Fuel Tank Temperature Sensor Circuit
P01AA is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank Temperature Sensor Circuit. Common causes: faulty alternate fuel tank temperature sensor, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Difficulty starting the engine
- Check Engine Light Illuminates
Causes
- Faulty alternate fuel tank temperature sensor
- Open or short circuit in wiring harness
- Poor connection in the sensor connector
- Problems with the engine control unit
How to Fix
- Check the integrity of the wiring harness and connectors
- Check the resistance of the temperature sensor
- Replace temperature sensor if necessary
- Clean or replace connectors if corroded
Related codes
Error P01AA by Vehicle Brand
FAQ
What does the P01AA code mean?
P01AA is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank Temperature Sensor Circuit
What causes a P01AA error code?
The most common causes of P01AA include: Faulty alternate fuel tank temperature sensor; Open or short circuit in wiring harness; Poor connection in the sensor connector; Problems with the engine control unit.
How do I fix a P01AA diagnostic trouble code?
To fix P01AA: Check the integrity of the wiring harness and connectors. Check the resistance of the temperature sensor. Replace temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P01AA?
Limited driving only, diagnose soon
How much does it cost to fix P01AA?
The estimated repair cost for P01AA is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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