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P1192 2017 Chevrolet Silverado Code - O2 Low Reference Circuit (NOx Sensor 1)

Quick Answer

The P1192 code on a 2017 Chevrolet Silverado indicates a problem with the O2 Low Reference Circuit related to the NOx Sensor 1. Common causes include Faulty NOx sensor, Damaged wiring or connectors in the O2 Low Reference Circuit, ECM software issue. 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
P1192 2017 Chevrolet Silverado indicates O2 Low Reference Circuit (NOx Sensor 1).
Common causes
Common causes include Faulty NOx sensor, Damaged wiring or connectors in the O2 Low Reference Circuit, ECM software issue.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1192 2017 Chevrolet Silverado Description

The P1192 code on a 2017 Chevrolet Silverado indicates a problem with the O2 Low Reference Circuit related to 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 Low Reference Circuit is a part of the sensor's circuitry that provides a reference voltage for accurate readings.

OBDII Code P1192 2017 Chevrolet Silverado - O2 Low Reference Circuit (NOx Sensor 1)
P1192 2017 Chevrolet Silverado Code - O2 Low Reference Circuit (NOx Sensor 1)

Common Causes of P1192 2017 Chevrolet Silverado

  1. Faulty NOx sensor
  2. Damaged wiring or connectors in the O2 Low Reference Circuit
  3. ECM software issue
  4. Exhaust system leaks
  5. Contaminated fuel

Symptoms of P1192 2017 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Check Engine Light illuminated
  3. Failed emissions test
  4. Rough idling or stalling
  5. Reduced engine performance

How to Fix P1192 2017 Chevrolet Silverado

  1. Use a diagnostic scanner to retrieve the specific trouble code and confirm the issue.
  2. Inspect the NOx sensor and its wiring for any visible damage or corrosion.
  3. Test the O2 Low Reference Circuit for proper voltage levels and continuity.
  4. Replace the NOx sensor if it is found to be faulty, and repair or replace any damaged wiring or connectors.
  5. Clear the trouble code and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1192 2017 Chevrolet Silverado

The typical repair costs for addressing a P1192 code on a 2017 Chevrolet Silverado can range from $200 to $500, depending on the extent of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates can vary, so it's recommended to check with local auto repair shops for a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1192 2017 Chevrolet Silverado Code

1. What does the OBDII code P1192 mean on a 2017 Chevrolet Silverado?

P1192 indicates an issue with the O2 Low Reference Circuit for NOx Sensor 1, which monitors nitrogen oxide levels in the exhaust system.

2. What are the common symptoms of code P1192 in a 2017 Chevrolet Silverado?

Symptoms may include reduced engine performance, increased emissions, a check engine light, and possible rough idling.

3. What causes the P1192 code on a 2017 Chevrolet Silverado?

Common causes include a faulty NOx sensor, damaged wiring or connectors, or issues with the vehicle's ECM.

4. Can I drive my 2017 Chevrolet Silverado with the P1192 code?

It’s possible to drive, but prolonged operation with this code may lead to increased emissions and damage to other components.

5. How do you diagnose the P1192 code in a 2017 Chevrolet Silverado?

Diagnosis involves inspecting the NOx sensor, checking wiring and connectors for damage, and scanning the ECM for additional related codes.

6. How do you fix the P1192 code on a 2017 Chevrolet Silverado?

Potential fixes include replacing the NOx sensor, repairing or replacing damaged wiring, or updating/reprogramming the ECM.

7. How much does it cost to repair the P1192 code on a 2017 Chevrolet Silverado?

Repair costs can range from $200 to $600, depending on whether the NOx sensor or wiring needs replacement.

8. What tools are needed to fix the P1192 code on a 2017 Chevrolet Silverado?

You may need an OBDII scanner, a multimeter, basic hand tools, and possibly a NOx sensor socket for removal.

9. Can a dirty exhaust system cause the P1192 code in a 2017 Chevrolet Silverado?

Yes, excessive carbon buildup or contamination in the exhaust system can affect the NOx sensor's performance.

10. Does the P1192 code affect fuel efficiency in a 2017 Chevrolet Silverado?

Yes, this code can lead to reduced fuel efficiency due to improper air-fuel mixture adjustments.

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