P1472 2015 GMC Sierra Code - Particulate Matter Sensor Signal Message Counter Incorrect
Quick Answer
The diagnostic trouble code P1472 for a 2015 GMC Sierra indicates that the Particulate Matter Sensor Signal Message Counter is incorrect. Common causes include Faulty particulate matter sensor, Damaged wiring or connectors, Software glitch in the ECM. 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 2015 GMC Sierra indicates Particulate Matter Sensor Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty particulate matter sensor, Damaged wiring or connectors, Software glitch in the ECM.
- 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 2015 GMC Sierra Description
The diagnostic trouble code P1472 for a 2015 GMC Sierra indicates that the Particulate Matter Sensor Signal Message Counter is incorrect. This sensor is a crucial component of the vehicle's emissions control system, specifically designed to monitor the amount of particulate matter (PM) emitted by the engine. Particulate matter consists of tiny particles that are harmful to human health and the environment, so it is essential for the sensor to accurately measure and report this data to the engine control module (ECM).
Common Causes of P1472 2015 GMC Sierra
- Faulty particulate matter sensor
- Damaged wiring or connectors
- Software glitch in the ECM
- Issues with the diesel particulate filter (DPF)
- Environmental factors such as extreme temperatures or humidity
Symptoms of P1472 2015 GMC Sierra
- Check engine light illuminated
- Reduced fuel efficiency
- Increased emissions
- Poor engine performance
- Difficulty starting the vehicle
How to Fix P1472 2015 GMC Sierra
- Perform a diagnostic scan to retrieve the specific error codes and pinpoint the issue.
- Inspect the particulate matter sensor, wiring, and connectors for any signs of damage or corrosion.
- Test the sensor's functionality using a multimeter or diagnostic tool to determine if it is sending accurate data to the ECM.
- If the sensor is faulty, replace it with a new OEM part and reset the error codes.
- Clear the ECM's memory and perform a test drive to ensure that the issue has been resolved.
Cost to Fix P1472 2015 GMC Sierra
The typical repair costs for addressing a P1472 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty particulate matter sensor can cost between $200 and $500, including parts and labor. However, if additional components such as wiring or connectors need to be replaced, the total repair cost could be higher. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to obtain quotes from multiple sources to ensure a competitive price.
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Frequently Asked Questions about P1472 2015 GMC Sierra Code
1. What does the OBDII code P1472 mean on a 2015 GMC Sierra?
P1472 indicates an issue with the particulate matter (PM) sensor, specifically that the signal message counter is incorrect or not functioning as expected.
2. What are the common symptoms of a P1472 code in a 2015 GMC Sierra?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, or the vehicle entering limp mode.
3. What causes the P1472 code to appear?
Common causes include a faulty particulate matter sensor, wiring issues like damaged or corroded connectors, or a problem with the engine control module (ECM) communication.
4. Can a dirty DPF cause the P1472 code?
Yes, a clogged diesel particulate filter (DPF) can contribute to improper sensor readings, potentially triggering the P1472 code.
5. How is the P1472 code diagnosed?
A mechanic will typically use a scan tool to confirm the code, inspect the particulate matter sensor and wiring, and verify proper communication between the sensor and ECM.
6. Can I drive my 2015 GMC Sierra with a P1472 code?
While the vehicle may still be drivable, continuing to drive with this code can lead to further emissions system damage or performance issues. Prompt diagnosis and repair are recommended.
7. How do you fix a P1472 code on a 2015 GMC Sierra?
Repairs may involve replacing a faulty particulate matter sensor, repairing damaged wiring or connectors, cleaning the DPF, or updating/reprogramming the ECM.
8. How much does it cost to fix the P1472 code?
Repair costs vary but can range from $200 to $1,000 depending on whether the sensor, wiring, or DPF needs servicing or replacement.
9. Can a software issue cause the P1472 code?
Yes, outdated or corrupted ECM software can sometimes cause this code. A software update or reprogramming may resolve the issue.
10. How can I prevent the P1472 code from recurring?
Regular maintenance of the DPF system, timely sensor inspections, and addressing check engine light issues promptly can help prevent this code from recurring.
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