GMC Code P11CC is a diagnostic trouble code (DTC) that indicates an issue with the NOx Sensor 1 Performance – Signal Low. Many factors can lead to this issue, including P11CB or P11CC DTCs, the ECM receiving serial data messages from the NOx Sensor Module, the DPF Regeneration not being active, and a range of other conditions that must be met. Understanding the causes and solutions to GMC Code P11CC is essential for correctly diagnosing and repairing the issue.
Causes and Solutions for GMC Code P11CC
| Causes | Solutions |
|---|---|
| P11CB or P11CC | Check for any open recalls related to the DTCs as outlined in the related service bulletins. |
| The ECM receives a serial data message from the NOx Sensor Module | Replace the NOx Sensor Module. |
| The DPF Regeneration is not active. | Check the DPF Regeneration and reset the module. |
| 75-106 kPa (11-15 psi), -7 to +38°C (19-100°F), more significant than the 30s, -7 to +123°C (19-253°F), greater than 600 RPM, greater than 11 V | Check that all conditions are met. |
P11CB or P11CC
The first cause for GMC Code P11CC is the presence of P11CB or P11CC DTCs. If these codes are present, checking for any open recalls related to the DTCs, as outlined in the related service bulletins, is recommended. This can help to identify and resolve the issue quickly.
The ECM Receives a Serial Data Message from the NOx Sensor Module
The second cause of GMC Code P11CC is when the ECM receives a serial data message from the NOx Sensor Module. In this case, it is necessary to replace the NOx Sensor Module to resolve the issue.
The DPF Regeneration is not Active.
The third cause of GMC Code P11CC is when the DPF Regeneration is not active. To resolve this issue, it is necessary to check the DPF Regeneration and reset the module.
75-106 kPa (11-15 psi), -7 to +38°C (19-100°F), more significant than the 30s, -7 to +123°C (19-253°F), greater than 600 RPM, greater than 11 V
The fourth cause of GMC Code P11CC is when all the conditions listed above are unmet. If any of the conditions are not met, it is necessary to check them and make sure they are within the required range.
Conclusion: How to Resolve GMC Code P11CC
GMC Code P11CC is a diagnostic trouble code (DTC) that indicates an issue with the NOx Sensor 1 Performance – Signal Low. To resolve this issue, it is essential to understand the causes and solutions associated with GMC Code P11CC. The causes can include P11CB or P11CC DTCs, the ECM receiving serial data messages from the NOx Sensor Module, the DPF Regeneration not being active, and a range of other conditions that must be met. To properly diagnose and repair the issue, it is essential to understand the causes and solutions for GMC Code P11CC.