P16AA Chevrolet Code - Intake Air Heater Temperature Sensor Circuit Low Voltage
Quick Answer
The intake air heater has the ability to perform internal diagnostics for the temperature sensor circuit. Common causes include Faulty Intake Air Heater Temperature Sensor, Intake Air Heater Temperature Sensor harness is open or shorted, Intake Air Heater Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P16AA Chevrolet indicates Intake Air Heater Temperature Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty Intake Air Heater Temperature Sensor, Intake Air Heater Temperature Sensor harness is open or shorted, Intake Air Heater Temperature Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P16AA Chevrolet Description
What are the Possible Causes of the DTC P16AA Chevrolet?
- Faulty Intake Air Heater Temperature Sensor
- Intake Air Heater Temperature Sensor harness is open or shorted
- Intake Air Heater Temperature Sensor circuit poor electrical connection
How to Fix the DTC P16AA Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P16AA Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P16AA Chevrolet Code
1. What does the OBDII code P16AA mean on a Chevrolet?
The P16AA code on a Chevrolet indicates an issue with the Intake Air Heater Temperature Sensor Circuit, specifically low voltage detected in the circuit.
2. What are the symptoms of the P16AA code?
Common symptoms include an illuminated check engine light, poor cold-weather starting performance, reduced fuel efficiency, and possible engine hesitation.
3. What causes the P16AA code on a Chevrolet?
The code can be triggered by a faulty intake air heater temperature sensor, damaged wiring or connections, a malfunctioning intake air heater, or a failed engine control module (ECM).
4. Can I drive my Chevrolet with the P16AA code?
While the vehicle may still be drivable, it’s not recommended to ignore the code as it can affect engine performance, especially in cold weather conditions.
5. How do you diagnose the P16AA code?
Diagnosis involves checking the intake air heater temperature sensor, inspecting the wiring and connectors for damage, and testing the voltage and resistance of the circuit.
6. How do you fix the P16AA code?
Repairs may include replacing the intake air heater temperature sensor, repairing or replacing damaged wiring, cleaning corroded connections, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to fix the P16AA code?
Repair costs can vary but typically range from $100 to $300, depending on whether the sensor, wiring, or ECM needs replacement.
8. Can a dirty intake air heater cause the P16AA code?
No, a dirty intake air heater typically won’t cause this code, but issues with the heater’s electrical circuit or sensor can trigger it.
9. Will resetting the check engine light fix the P16AA code?
Resetting the check engine light may temporarily clear the code, but the underlying issue must be addressed to prevent the code from returning.
10. Is the P16AA code specific to Chevrolet vehicles?
The P16AA code is most commonly associated with Chevrolet vehicles, but similar codes may appear on other makes with intake air heater systems.
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