P1472 2016 GMC Sierra Code - Particulate Matter Sensor Signal Message Counter Incorrect
Quick Answer
The P1472 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the Particulate Matter Sensor Signal Message Counter is incorrect. Common causes include Faulty Particulate Matter Sensor: The sensor itself may be malfunctioning, providing inaccurate data to the ECM, Wiring Issues: Damaged or corroded wiring connections to the Particulate Matter Sensor can disrupt the signal transmission, Software Glitch: An issue with the ECM software can cause incorrect readings from the sensor. 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
- P1472 2016 GMC Sierra indicates Particulate Matter Sensor Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Particulate Matter Sensor: The sensor itself may be malfunctioning, providing inaccurate data to the ECM, Wiring Issues: Damaged or corroded wiring connections to the Particulate Matter Sensor can disrupt the signal transmission, Software Glitch: An issue with the ECM software can cause incorrect readings from the sensor.
- 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.
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Code P1472 2016 GMC Sierra Description
The P1472 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the Particulate Matter Sensor Signal Message Counter is incorrect. This code is typically related to the diesel particulate filter (DPF) system in vehicles equipped with diesel engines. The DPF is designed to capture and store soot particles from the exhaust gases to reduce emissions. The Particulate Matter Sensor monitors the efficiency of the DPF by measuring the amount of particulate matter in the exhaust stream.
Common Causes of P1472 2016 GMC Sierra
- Faulty Particulate Matter Sensor: The sensor itself may be malfunctioning, providing inaccurate data to the ECM.
- Wiring Issues: Damaged or corroded wiring connections to the Particulate Matter Sensor can disrupt the signal transmission.
- Software Glitch: An issue with the ECM software can cause incorrect readings from the sensor.
- Exhaust System Blockage: A clogged DPF or exhaust system can affect the sensor's ability to measure particulate matter levels accurately.
Symptoms of P1472 2016 GMC Sierra
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Engine Power: The vehicle may experience a decrease in power output, especially during acceleration.
- Increased Fuel Consumption: A faulty Particulate Matter Sensor can lead to inefficient DPF regeneration, causing the engine to consume more fuel.
- Poor Exhaust System Performance: The vehicle may emit excessive smoke or have a noticeable decrease in exhaust system performance.
How to Fix P1472 2016 GMC Sierra
- Diagnose the Issue: Use a diagnostic scan tool to retrieve the DTC and perform a thorough inspection of the Particulate Matter Sensor and related components.
- Replace the Particulate Matter Sensor: If the sensor is found to be faulty, it will need to be replaced with a new one.
- Check Wiring Connections: Inspect the wiring harness for any damage or corrosion, and repair or replace as needed.
- Perform DPF Regeneration: After replacing the sensor, perform a forced regeneration of the DPF to ensure proper functionality.
- Clear DTCs: Clear the DTC from the ECM memory and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P1472 2016 GMC Sierra
The typical repair costs for addressing a P1472 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. Replacement Particulate Matter Sensors can range from $200 to $500, with additional costs for labor and diagnostic time. Overall, the total repair cost could range from $300 to $800. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.
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Frequently Asked Questions about P1472 2016 GMC Sierra Code
What does the OBDII code P1472 mean on a 2016 GMC Sierra?
The code P1472 indicates an issue with the particulate matter (PM) sensor, specifically that the signal message counter is incorrect, which may impact emissions monitoring.
What are the common symptoms of the P1472 code in a 2016 GMC Sierra?
Symptoms include an illuminated check engine light, decreased fuel efficiency, possible engine performance issues, and the vehicle failing emissions tests.
What causes the P1472 code in a GMC Sierra?
Common causes include a faulty particulate matter sensor, wiring or connector issues, a malfunctioning control module, or software glitches in the engine control module (ECM).
Can I drive my 2016 GMC Sierra with the P1472 code?
While the vehicle may still be drivable, ignoring this code can lead to worsening emissions performance and potential damage to the exhaust system over time.
How do you diagnose the P1472 code?
Diagnosis typically involves scanning for codes, inspecting the particulate matter sensor and its wiring, checking for software updates, and testing the sensor's signal output.
What repairs are needed to fix the P1472 code?
Repairs may include replacing the particulate matter sensor, repairing damaged wiring or connectors, or updating/reprogramming the engine control module.
How much does it cost to fix the P1472 code on a GMC Sierra?
The repair cost varies, but replacing a particulate matter sensor typically costs $300–$600, depending on labor rates and parts pricing.
Can a dirty diesel particulate filter (DPF) cause the P1472 code?
A clogged or dirty DPF could potentially stress the particulate matter sensor, but the P1472 code specifically relates to a signal issue rather than filter clogging.
Is a software update required to resolve the P1472 code?
In some cases, a software update to the engine control module may be necessary to address communication or signal processing issues.
How can I prevent the P1472 code from recurring?
Regular maintenance, ensuring the DPF system is functioning properly, and promptly addressing any check engine light warnings can help prevent this code.
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