Engine-Codes - Chevrolet - P11CB Chevrolet

P11CB Chevrolet Code - Nox Sensor 1 Performance Signal High

- Code Popularity: 3,912 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P11CB Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Nox Sensor 1
  • Nox Sensor 1 harness is open or shorted
  • Nox Sensor 1 circuit poor electrical connection
  • Intake System Leaks
  • Exhaust System Leaks
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How to Fix the DTC P11CB Chevrolet?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P11CB Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P11CB Chevrolet Code Mean?

The Powertrain Control Module (PCM) monitors the Nox Sensor 1. The PCM sets the OBDII code when the Nox Sensor 1 is not to factory specifications.

P11CB Chevrolet Code - Nox Sensor 1 Performance Signal High

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