P0151 2016 GMC Sierra Code - HO2S Circuit Low Voltage Bank 2 Sensor 1
Quick Answer
The P0151 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the HO2S (Heated Oxygen Sensor) Circuit Low Voltage for Bank 2 Sensor 1. Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0151 2016 GMC Sierra indicates HO2S Circuit Low Voltage Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty oxygen sensor, Wiring or connector issues, Exhaust leaks.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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 P0151 2016 GMC Sierra Description
The P0151 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the HO2S (Heated Oxygen Sensor) Circuit Low Voltage for Bank 2 Sensor 1. This sensor is responsible for measuring the oxygen content in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.
Common Causes of P0151 2016 GMC Sierra
- Faulty oxygen sensor
- Wiring or connector issues
- Exhaust leaks
- Vacuum leaks
- ECM malfunction
Symptoms of P0151 2016 GMC Sierra
- Decreased fuel efficiency
- Rough idling or stalling
- Engine misfires
- Check Engine Light illuminated
- Poor acceleration
How to Fix P0151 2016 GMC Sierra
- Diagnose the issue by using a scan tool to confirm the P0151 code and check the oxygen sensor's voltage readings.
- Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
- Check for exhaust leaks and repair them to ensure accurate oxygen sensor readings.
- Test the oxygen sensor's heater circuit to ensure proper operation. Replace the sensor if needed.
- Clear the code and perform a test drive to verify that the issue has been resolved.
Cost to Fix P0151 2016 GMC Sierra
The typical repair costs for addressing a P0151 code on a 2016 GMC Sierra can range from $150 to $400, including parts and labor. This estimate may vary depending on the specific diagnosis time and labor rates at auto repair shops, which can be influenced by factors such as location, vehicle make and model, and engine type. It is recommended to inquire about local rates for a more accurate estimate.
Tech Notes for P0151 2016 GMC Sierra
Need more information about the P0151 2016 GMC Sierra code?
Need more information on how to fix the P0151 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0151 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0151 2016 GMC Sierra Code
What does the OBDII code P0151 mean for a 2016 GMC Sierra?
P0151 indicates that the oxygen sensor (HO2S) on Bank 2, Sensor 1 is detecting a voltage that is lower than expected, suggesting a lean fuel condition or sensor malfunction.
What are the common symptoms of the P0151 code on a 2016 GMC Sierra?
Symptoms may include poor fuel economy, rough idle, hesitation during acceleration, or the Check Engine Light being illuminated.
What causes the P0151 code on a 2016 GMC Sierra?
Common causes include a faulty oxygen sensor, damaged wiring, exhaust leaks, or issues with the fuel delivery system, such as low fuel pressure or clogged injectors.
How do I locate Bank 2 Sensor 1 on a 2016 GMC Sierra?
Bank 2 refers to the side of the engine opposite the cylinder with the #1 piston, and Sensor 1 is the upstream oxygen sensor located before the catalytic converter on that side.
Can I drive my 2016 GMC Sierra with the P0151 code?
While the vehicle may still run, driving with this code can lead to reduced performance and fuel efficiency. Prolonged operation may cause further damage, especially to the catalytic converter.
How do you fix the P0151 code on a 2016 GMC Sierra?
Repairs may include replacing the oxygen sensor, repairing damaged wiring, fixing exhaust leaks, or addressing issues with the fuel system.
How do you diagnose the P0151 code on a 2016 GMC Sierra?
Diagnosis involves using a scan tool to monitor sensor data, inspecting wiring and connectors, checking for exhaust leaks, and verifying proper fuel pressure.
What tools are needed to repair the P0151 code on a 2016 GMC Sierra?
You may need an OBDII scanner, basic hand tools, a voltmeter for testing wiring, and potentially replacement parts like an oxygen sensor or wiring harness.
How much does it cost to fix the P0151 code on a 2016 GMC Sierra?
The cost can vary, but replacing an oxygen sensor typically costs $100-$300, plus labor. Wiring repairs or fuel system fixes may increase the price.
Can a P0151 code cause long-term damage to my 2016 GMC Sierra?
If unaddressed, P0151 can lead to poor engine performance and potentially damage the catalytic converter, which is costly to replace.
Discuss the causes and fixes for P0151 2016 GMC Sierra OBDII Code
Code P0151 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.