P1479 2014 Chevrolet Silverado Code - Particulate Matter Sensor Sensitivity Factor Performance
Quick Answer
The Particulate Matter (PM) sensor monitors the amount of the particulates (soot) in the diesel exhaust gas exiting the tailpipe. Common causes include Faulty Exhaust Particulate Matter Sensor, Exhaust Particulate Matter Sensor harness is open or shorted, Exhaust Particulate Matter Sensor circuit poor electrical connection. 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
- P1479 2014 Chevrolet Silverado indicates Particulate Matter Sensor Sensitivity Factor Performance.
- Common causes
- Common causes include Faulty Exhaust Particulate Matter Sensor, Exhaust Particulate Matter Sensor harness is open or shorted, Exhaust Particulate Matter Sensor circuit poor electrical connection.
- 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.
Code P1479 2014 Chevrolet Silverado Description
The operation of the PM Sensor is based on the electrical conductivity characteristic of the diesel particulate. As the exhaust gas flows over the sensing element, soot is absorbed in the combs between the electrodes, eventually creating a conductive path. When the path is formed, it generates a current based on the voltage being applied to the element. The measurement process continues until a preset current value is reached. To avoid misleading readings, the sensor performs a regeneration where the soot is cleaned off by heating up the element before the measurement phase begins. The amount of regenerations is based on vehicle strategy; when the calibrated number of regenerations is reached, the cumulative current readings are used to determine the amount of soot concentration in the exhaust gas which in turn determines the collection efficiency of the Diesel Particulate Filter (DPF).
The Diagnostic Trouble Code (DTC) will be set when the particular matter sensor control unit detects a fault in the particulate matter sensor circuitry.
What are the Possible Causes of the DTC P1479 2014 Chevrolet Silverado?
- Faulty Exhaust Particulate Matter Sensor
- Exhaust Particulate Matter Sensor harness is open or shorted
- Exhaust Particulate Matter Sensor circuit poor electrical connection
How to Fix the DTC P1479 2014 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1479 2014 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1479 2014 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P1479 in a 2014 Chevrolet Silverado?
- Common symptoms include poor engine performance, reduced fuel efficiency, and possible black smoke emitting from the exhaust.
2. What does the OBDII code P1479 "Particulate Matter Sensor Sensitivity Factor Performance" indicate in a 2014 Chevrolet Silverado?
- This code indicates an issue with the sensitivity factor performance of the particulate matter sensor in the vehicle's emissions system.
3. What are the possible causes of OBDII code P1479 in a 2014 Chevrolet Silverado?
- Possible causes include a faulty particulate matter sensor, wiring issues, sensor calibration problems, or a malfunctioning sensor sensitivity factor.
4. How can I diagnose the OBDII code P1479 in my 2014 Chevrolet Silverado?
- Diagnosing this code typically involves using a diagnostic scan tool to retrieve the code, checking the particulate matter sensor and related wiring for any visible damage, and performing sensor calibration tests.
5. Can I continue driving my 2014 Chevrolet Silverado with OBDII code P1479?
- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the emissions system and potentially affect the vehicle's performance.
6. How can I reset the OBDII code P1479 in my 2014 Chevrolet Silverado?
- Resetting the code can be done using a diagnostic scan tool to clear the code after addressing the underlying issue with the particulate matter sensor sensitivity factor.
7. What are some repair tips for fixing OBDII code P1479 in a 2014 Chevrolet Silverado?
- Repair tips include checking and cleaning the particulate matter sensor, inspecting and repairing any damaged wiring, and performing sensor recalibration as needed.
8. Does fixing OBDII code P1479 require professional assistance?
- While some DIY enthusiasts may be able to address this code themselves, it is recommended to seek professional assistance, especially if dealing with sensor calibration or complex wiring issues.
9. How much does it typically cost to repair OBDII code P1479 in a 2014 Chevrolet Silverado?
- Repair costs can vary depending on the exact cause of the issue, but they may range from $200 to $500 or more, including parts and labor.
10. How can I prevent OBDII code P1479 from recurring in my 2014 Chevrolet Silverado?
- To prevent this code from recurring, it is essential to perform regular maintenance on the emissions system, including sensor inspections and ensuring proper calibration.
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