P1476 2016 Chevrolet Silverado Code - Particulate Matter Sensor Electrode Supply Circuit High Voltage
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
- P1476 2016 Chevrolet Silverado indicates Particulate Matter Sensor Electrode Supply Circuit High Voltage.
- 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 P1476 2016 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 P1476 2016 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 P1476 2016 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 P1476 2016 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 P1476 2016 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P1476 in a 2016 Chevrolet Silverado?
Symptoms may include poor engine performance, decreased fuel efficiency, and the illumination of the Check Engine Light.
2. What does the OBDII code P1476 on a 2016 Chevrolet Silverado indicate?
This code indicates an issue with the Particulate Matter Sensor Electrode Supply Circuit showing high voltage.
3. What are some possible causes of OBDII code P1476 in a 2016 Chevrolet Silverado?
Potential causes include a faulty particulate matter sensor, wiring issues, a damaged sensor connector, or a problem with the sensor's electrode supply circuit.
4. How can I diagnose the OBDII code P1476 in my 2016 Chevrolet Silverado?
Diagnosis often involves inspecting the sensor and its wiring for damage, testing the sensor's voltage output, and checking for any loose connections.
5. Can I drive my 2016 Chevrolet Silverado with OBDII code P1476?
It is not recommended to drive the vehicle with this code present, as it can lead to further damage and decreased performance.
6. How serious is OBDII code P1476 in a 2016 Chevrolet Silverado?
While the code itself may not cause immediate drivability issues, it is important to address it promptly to prevent potential damage to the vehicle's emissions system.
7. Can I repair OBDII code P1476 in my 2016 Chevrolet Silverado myself?
Depending on your level of automotive expertise, you may be able to repair this issue yourself by replacing the faulty sensor or fixing any wiring/connectivity problems.
8. Is it safe to ignore OBDII code P1476 in my 2016 Chevrolet Silverado?
Ignoring this code can lead to increased emissions, reduced fuel efficiency, and potential long-term damage to the vehicle's emissions system.
9. How much does it typically cost to repair OBDII code P1476 in a 2016 Chevrolet Silverado?
The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the sensor, repairing wiring, or addressing other related components.
10. How can I prevent OBDII code P1476 from reoccurring in my 2016 Chevrolet Silverado?
Regular maintenance, such as checking the sensor and its connections for damage, can help prevent this code from reoccurring.
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