P1160 2016 GMC Sierra Code - O2 Reference Voltage Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P1160 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the O2 reference voltage circuit being too high in voltage for the NOx sensor 1. Common causes include Faulty NOx sensor, Damaged wiring or connectors in the O2 reference voltage circuit, Malfunctioning engine control module (ECM). 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 GMC Sierra indicates O2 Reference Voltage Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty NOx sensor, Damaged wiring or connectors in the O2 reference voltage circuit, Malfunctioning engine control module (ECM).
- 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 GMC Sierra Description
The P1160 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the O2 reference voltage circuit being too high in voltage for the NOx sensor 1. The NOx sensor is responsible for monitoring the levels of nitrogen oxide in the exhaust gases to ensure compliance with emissions regulations. The O2 reference voltage circuit provides a stable voltage signal to the sensor for accurate readings.
Common Causes of P1160 2016 GMC Sierra
- Faulty NOx sensor.
- Damaged wiring or connectors in the O2 reference voltage circuit.
- Malfunctioning engine control module (ECM).
- Corrosion or contamination in the sensor connections.
- Electrical issues such as a short circuit or open circuit in the circuit.
Symptoms of P1160 2016 GMC Sierra
- Check engine light illuminated on the dashboard.
- Decreased fuel efficiency.
- Rough idling or stalling.
- Increased emissions output.
- Reduced engine performance.
How to Fix P1160 2016 GMC Sierra
- Begin by conducting a thorough inspection of the NOx sensor, wiring, and connectors for any visible damage or corrosion.
- Test the O2 reference voltage circuit using a multimeter to check for proper voltage levels.
- If the voltage is too high, replace the NOx sensor and clear the DTC from the ECM.
- Reset the ECM by disconnecting the battery for a few minutes to clear any stored codes.
- Perform a test drive to ensure the check engine light does not reappear and monitor the vehicle's performance for any abnormalities.
Cost to Fix P1160 2016 GMC Sierra
The cost of repairing a P1160 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. Typically, the cost of a new NOx sensor can range from $200 to $500, while labor costs can range from $100 to $200. Overall, the total repair cost could be between $300 and $700. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
Need more information about the P1160 2016 GMC Sierra code?
Need more information on how to fix the P1160 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1160 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1160 2016 GMC Sierra Code
1. What does the OBDII code P1160 mean on a 2016 GMC Sierra?
P1160 indicates an issue with the O2 reference voltage circuit, specifically a high voltage detected in the NOx Sensor 1.
2. What are the symptoms of code P1160 in a 2016 GMC Sierra?
Symptoms may include the check engine light, reduced fuel efficiency, rough idling, poor engine performance, and possibly entering limp mode.
3. What causes the P1160 code to appear?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the O2 reference circuit, or a malfunctioning engine control module (ECM).
4. Can I drive my 2016 GMC Sierra with the P1160 code active?
While it may be possible to drive, it is not recommended as the issue can lead to poor performance, increased emissions, and potential damage to other components.
5. How do you diagnose the P1160 code on a 2016 GMC Sierra?
Diagnosis involves checking the NOx sensor, inspecting the circuit wiring and connectors for damage, and using a diagnostic scanner to verify the fault.
6. What repairs are needed for a P1160 code?
Repairs may include replacing the NOx sensor, repairing or replacing damaged wiring or connectors, or updating/replacing the ECM if necessary.
7. How much does it cost to fix the P1160 code on a 2016 GMC Sierra?
Costs can vary but typically range from $200 to $600, depending on whether the NOx sensor or wiring needs replacement.
8. Will clearing the P1160 code fix the problem?
Clearing the code may turn off the check engine light temporarily, but the issue will return unless the underlying problem is resolved.
9. What tools are needed to fix the P1160 code?
You’ll need an OBDII scanner, a multimeter for circuit testing, and potentially a NOx sensor socket for removal and installation.
10. Can a dirty or clogged NOx sensor cause the P1160 code?
Yes, a dirty or malfunctioning NOx sensor can cause the code by sending incorrect voltage signals to the ECM.
Discuss the causes and fixes for P1160 2016 GMC Sierra OBDII Code
Code P1160 2016 GMC Sierra 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.