P1472 2014 Chevrolet Silverado Code - Particulate Matter Sensor Signal Message Counter Incorrect

P1472 indicates an issue with the particulate matter (PM) sensor, specifically that the sensor's signal message counter is delivering incorrect or invalid data to the engine control module (ECM).

Symptoms may include the check engine light turning on, reduced engine performance, increased exhaust emissions, and potentially triggering the vehicle to enter limp mode.

Common causes include a faulty particulate matter sensor, wiring or connector issues, software glitches in the ECM, or an exhaust system issue affecting sensor readings.

While the truck may still be drivable, it’s not recommended to ignore the issue, as it can lead to reduced fuel efficiency, higher emissions, and potential long-term damage to the exhaust or emissions system.

A technician will use a diagnostic scanner to confirm the code, inspect the particulate matter sensor and its wiring, check for exhaust leaks, and ensure the ECM is receiving correct data from the sensor.

Repairs may include replacing the particulate matter sensor, repairing or replacing damaged wiring or connectors, updating the ECM software, or addressing any exhaust system issues.

The cost can vary depending on the root cause, but replacing the particulate matter sensor typically costs between $300 and $600, including parts and labor.

Yes, excessive soot or blockages in the exhaust system can disrupt the particulate matter sensor’s readings and trigger this code.

Clearing the code might temporarily turn off the check engine light, but it won’t resolve the underlying problem. The code will likely return until the issue is properly addressed.

It may be covered under the emissions warranty, depending on your vehicle's mileage and warranty terms. Check with your dealership or warranty documentation for details.