P1160 2016 Chevrolet Silverado Code - O2 Reference Voltage Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P1160 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates an issue with the O2 reference voltage circuit, specifically high voltage detected in the NOx (Nitrogen Oxide) Sensor 1. Common causes include Faulty NOx Sensor: A malfunctioning NOx sensor can cause high voltage in the O2 reference circuit, Short Circuit: A short circuit in the O2 reference voltage circuit can lead to high voltage readings, ECM Malfunction: A faulty engine control module (ECM) can cause incorrect voltage signals to be sent to the NOx sensor. 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
- P1160 2016 Chevrolet Silverado indicates O2 Reference Voltage Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty NOx Sensor: A malfunctioning NOx sensor can cause high voltage in the O2 reference circuit, Short Circuit: A short circuit in the O2 reference voltage circuit can lead to high voltage readings, ECM Malfunction: A faulty engine control module (ECM) can cause incorrect voltage signals to be sent to the NOx sensor.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1160 2016 Chevrolet Silverado Description
The P1160 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates an issue with the O2 reference voltage circuit, specifically high voltage detected in the NOx (Nitrogen Oxide) Sensor 1. The NOx sensor is responsible for monitoring and regulating the levels of nitrogen oxide emissions in the vehicle's exhaust system. The O2 reference voltage circuit provides a stable voltage signal to the NOx sensor for accurate readings.
Common Causes of P1160 2016 Chevrolet Silverado
- Faulty NOx Sensor: A malfunctioning NOx sensor can cause high voltage in the O2 reference circuit.
- Short Circuit: A short circuit in the O2 reference voltage circuit can lead to high voltage readings.
- ECM Malfunction: A faulty engine control module (ECM) can cause incorrect voltage signals to be sent to the NOx sensor.
- Wiring Issues: Damaged or corroded wiring connecting the O2 reference circuit to the NOx sensor can trigger the P1160 code.
- Sensor Contamination: Contaminants such as oil or coolant can interfere with the NOx sensor's operation, leading to high voltage readings.
Symptoms of P1160 2016 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with the P1160 code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Fuel Efficiency: High voltage in the O2 reference circuit can lead to incorrect fuel mixture adjustments, resulting in decreased fuel efficiency.
- Engine Misfires: Incorrect sensor readings may cause the engine to misfire or run rough.
- Increased Emissions: The vehicle may fail emissions tests due to the NOx sensor not functioning properly.
- Rough Idle: The engine may experience rough idling or fluctuations in RPM due to the faulty sensor readings.
How to Fix P1160 2016 Chevrolet Silverado
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform further testing to pinpoint the exact cause of the high voltage in the O2 reference circuit.
- Inspect Wiring: Check the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
- Test NOx Sensor: Test the NOx sensor's functionality and replace it if it is found to be faulty.
- Check ECM: Verify the ECM's operation and reprogram or replace it if necessary.
- Clear Codes and Test Drive: Clear the DTC from the ECM memory, then test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1160 2016 Chevrolet Silverado
The typical repair costs for addressing a P1160 code on a 2016 Chevrolet Silverado can range from $200 to $600, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of diagnostic testing, replacement of the NOx sensor or ECM if needed, and any necessary wiring repairs. It's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and the complexity of the repair can also impact the final cost. To obtain a more accurate estimate, it is recommended to consult with local auto repair shops.
Need more information about the P1160 2016 Chevrolet Silverado code?
Need more information on how to fix the P1160 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1160 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1160 2016 Chevrolet Silverado Code
1. What does the OBDII code P1160 mean on a 2016 Chevrolet Silverado?
P1160 indicates an issue with the O2 reference voltage circuit for NOx Sensor 1, meaning the sensor is detecting a higher-than-expected voltage.
2. What are the common symptoms of code P1160 on a 2016 Chevrolet Silverado?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, and possible limp mode activation.
3. What causes code P1160 to appear on a 2016 Chevrolet Silverado?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning powertrain control module (PCM).
4. Can I drive my 2016 Chevrolet Silverado with a P1160 code?
Driving with a P1160 code is not recommended, as it may lead to reduced engine performance and potential damage to the emissions system.
5. How do I diagnose the P1160 code on my 2016 Chevrolet Silverado?
Diagnose the issue by checking the NOx sensor and its wiring for damage or corrosion, testing the reference voltage, and using a scan tool to monitor sensor data.
6. How can I fix the P1160 code on a 2016 Chevrolet Silverado?
Repairs may involve replacing the faulty NOx sensor, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
7. How much does it cost to repair the P1160 code on a 2016 Chevrolet Silverado?
The cost can vary, but replacing a NOx sensor typically ranges from $300 to $600, including parts and labor. Wiring repairs or PCM replacements may cost more.
8. Can a bad NOx sensor cause the P1160 code on a 2016 Chevrolet Silverado?
Yes, a faulty NOx sensor is one of the most common causes of the P1160 code.
9. What tools are needed to troubleshoot a P1160 code on a 2016 Chevrolet Silverado?
Tools include an OBDII scan tool, a multimeter for voltage testing, and possibly a wiring diagram for the NOx sensor circuit.
10. Will clearing the P1160 code on my 2016 Chevrolet Silverado fix the problem?
Clearing the code will turn off the check engine light temporarily, but the issue will return unless the underlying problem is resolved.
Discuss the causes and fixes for P1160 2016 Chevrolet Silverado OBDII Code
Code P1160 2016 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.