P0073 2015 Chevrolet Silverado Code - Ambient Air Temperature Sensor Circuit High Voltage
Quick Answer
The P0073 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates that there is a high voltage condition detected in the ambient air temperature sensor circuit. Common causes include Faulty Ambient Air Temperature Sensor: The sensor itself may be malfunctioning, sending incorrect voltage signals to the ECM, Wiring Issues: Damaged or corroded wiring in the sensor circuit can lead to high voltage readings, ECM Malfunction: A malfunctioning ECM can also cause high voltage readings in the ambient air temperature sensor circuit. 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
- P0073 2015 Chevrolet Silverado indicates Ambient Air Temperature Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty Ambient Air Temperature Sensor: The sensor itself may be malfunctioning, sending incorrect voltage signals to the ECM, Wiring Issues: Damaged or corroded wiring in the sensor circuit can lead to high voltage readings, ECM Malfunction: A malfunctioning ECM can also cause high voltage readings in the ambient air temperature sensor circuit.
- 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.
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Code P0073 2015 Chevrolet Silverado Description
The P0073 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates that there is a high voltage condition detected in the ambient air temperature sensor circuit. The ambient air temperature sensor is a crucial component of the vehicle's engine management system, as it provides the engine control module (ECM) with information about the outside air temperature. This information is used by the ECM to adjust fuel delivery, ignition timing, and other parameters to optimize engine performance and efficiency.
Common Causes of P0073 2015 Chevrolet Silverado
- Faulty Ambient Air Temperature Sensor: The sensor itself may be malfunctioning, sending incorrect voltage signals to the ECM.
- Wiring Issues: Damaged or corroded wiring in the sensor circuit can lead to high voltage readings.
- ECM Malfunction: A malfunctioning ECM can also cause high voltage readings in the ambient air temperature sensor circuit.
- Environmental Factors: Extreme temperatures or exposure to moisture can also affect the sensor's performance.
Symptoms of P0073 2015 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with this DTC is the illumination of the check engine light on the vehicle's dashboard.
- Incorrect Temperature Readings: The vehicle may display incorrect outside air temperature readings on the dashboard.
- Poor Fuel Efficiency: The ECM may adjust fuel delivery based on incorrect temperature readings, leading to decreased fuel efficiency.
- Engine Stalling: In severe cases, the engine may stall due to incorrect sensor readings affecting engine performance.
How to Fix P0073 2015 Chevrolet Silverado
- Diagnostic Testing: Use a scan tool to retrieve the DTC and perform diagnostic testing to confirm the issue.
- Check Sensor Wiring: Inspect the wiring harness for any damage or corrosion, and repair or replace as needed.
- Replace Ambient Air Temperature Sensor: If the sensor is faulty, replace it with a new one following manufacturer's guidelines.
- Clear DTC: Clear the DTC from the ECM's memory using a scan tool after completing the repair.
- Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.
Cost to Fix P0073 2015 Chevrolet Silverado
The cost of repairing a P0073 DTC on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the cost of replacing an ambient air temperature sensor ranges from $50 to $150, while labor costs can range from $80 to $150 per hour. Additional costs may include diagnostic testing and any necessary wiring repairs. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on the specific circumstances of the vehicle.
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Frequently Asked Questions about P0073 2015 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P0073 in a 2015 Chevrolet Silverado?
- Common symptoms include inaccurate temperature readings on the dashboard, issues with the climate control system, and possible illumination of the check engine light.
2. What does the Ambient Air Temperature Sensor do in a 2015 Chevrolet Silverado?
- The Ambient Air Temperature Sensor measures the temperature of the air outside the vehicle and sends this information to the engine control module to assist in various functions like fuel delivery and climate control.
3. What are the potential causes of the Ambient Air Temperature Sensor Circuit High Voltage error code P0073?
- The error code P0073 can be triggered by issues such as a faulty ambient air temperature sensor, damaged wiring or connectors, a short circuit in the sensor circuit, or a malfunctioning engine control module.
4. How can I diagnose the Ambient Air Temperature Sensor Circuit High Voltage issue in my 2015 Chevrolet Silverado?
- To diagnose the issue, you can use a multimeter to test the ambient air temperature sensor's resistance, check the wiring and connectors for damage, and inspect the sensor for any physical defects.
5. Can I continue driving my 2015 Chevrolet Silverado with the P0073 error code?
- It is generally not recommended to drive with the P0073 code as it can affect the vehicle's performance and fuel efficiency. It is best to address the issue promptly to prevent further damage.
6. How can I reset the OBDII code P0073 in my 2015 Chevrolet Silverado?
- You can reset the P0073 code by using an OBDII scanner to clear the code after addressing the underlying issue with the ambient air temperature sensor circuit.
7. Is it possible to repair the Ambient Air Temperature Sensor Circuit High Voltage issue in my 2015 Chevrolet Silverado myself?
- Depending on your automotive repair skills and tools, you may be able to address the P0073 code yourself by replacing the ambient air temperature sensor, repairing damaged wiring, or fixing connector issues.
8. Can extreme weather conditions affect the Ambient Air Temperature Sensor in a 2015 Chevrolet Silverado?
- Yes, extreme weather conditions such as extreme heat or cold can affect the ambient air temperature sensor's performance, potentially leading to the Circuit High Voltage error code P0073.
9. Will fixing the Ambient Air Temperature Sensor Circuit High Voltage issue improve my 2015 Chevrolet Silverado's fuel efficiency?
- Yes, addressing the P0073 error code and ensuring the proper functioning of the ambient air temperature sensor can help improve fuel efficiency by allowing the engine to adjust fuel delivery based on accurate temperature readings.
10. How much does it typically cost to repair the Ambient Air Temperature Sensor Circuit High Voltage issue in a 2015 Chevrolet Silverado?
- The cost of repairing the P0073 error code can vary depending on the root cause of the issue. It may involve replacing the ambient air temperature sensor, repairing wiring, or addressing other related issues, with costs ranging from $50 to $200 or more.
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