AutoCodes – Chevrolet – P1476 2015 Chevrolet Silverado

P1476 2015 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 2015 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.

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Code Popularity 282

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 01, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1476 2015 Chevrolet Silverado Description

The Particulate Matter (PM) sensor monitors the amount of the particulates (soot) in the diesel exhaust gas exiting the tailpipe. The PM sensor is similar to the heated oxygen sensor with a ceramic element but also includes an individually calibrated Sensor Control Unit (SCU). The sensing element includes comb-shaped Interdigital Electrodes (IDE), a heater and a positive temperature coefficient resistor for temperature measurement.
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.

OBDII Code P1476 2015 Chevrolet Silverado - Particulate Matter Sensor Electrode Supply Circuit High Voltage - AutoCodes.com — P1476 2015 Chevrolet Silverado Code - Particulate Matter Sensor Electrode Supply Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1476 2015 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 2015 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 2015 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.

Need more information about the P1476 2015 Chevrolet Silverado code?

Need more information on how to fix the P1476 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1476 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P1476 in a 2015 Chevrolet Silverado?

The common symptoms of P1476 in a 2015 Chevrolet Silverado include the check engine light being illuminated, reduced engine performance, and potential issues with the vehicle's emissions system.

2. What does the OBDII code P1476 on a 2015 Chevrolet Silverado indicate?

OBDII code P1476 on a 2015 Chevrolet Silverado indicates a problem with the Particulate Matter Sensor Electrode Supply Circuit High Voltage.

3. What are the possible causes of OBDII code P1476 in a 2015 Chevrolet Silverado?

Possible causes of P1476 in a 2015 Chevrolet Silverado include a faulty particulate matter sensor, damaged wiring or connectors in the electrode supply circuit, or a malfunctioning engine control module (ECM).

4. How can I diagnose the OBDII code P1476 on my 2015 Chevrolet Silverado?

Diagnosing P1476 in a 2015 Chevrolet Silverado involves using an OBDII scanner to retrieve the code, inspecting the particulate matter sensor and its wiring for damage, and testing the electrode supply circuit for proper voltage.

5. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P1476?

It is not recommended to continue driving your 2015 Chevrolet Silverado with OBDII code P1476, as it can lead to further damage to the emissions system and potentially affect the vehicle's performance.

6. How can I repair OBDII code P1476 in my 2015 Chevrolet Silverado?

Repairing P1476 in a 2015 Chevrolet Silverado may involve replacing the faulty particulate matter sensor, repairing or replacing damaged wiring or connectors, and resetting the ECM to clear the code.

7. Is it necessary to take my 2015 Chevrolet Silverado to a mechanic for OBDII code P1476?

While diagnosing and repairing P1476 in a 2015 Chevrolet Silverado may require specialized tools and knowledge, you can attempt to address the issue yourself if you have experience working on automotive electrical systems.

8. Will resetting the OBDII code P1476 on my 2015 Chevrolet Silverado solve the issue?

Simply resetting the code may temporarily turn off the check engine light, but it will not fix the underlying problem causing P1476 in your 2015 Chevrolet Silverado.

9. Can extreme weather conditions cause OBDII code P1476 in a 2015 Chevrolet Silverado?

Extreme weather conditions are unlikely to directly cause P1476 in a 2015 Chevrolet Silverado, but they may exacerbate existing issues with the particulate matter sensor or electrode supply circuit.

10. How long does it typically take to repair OBDII code P1476 in a 2015 Chevrolet Silverado?

The time it takes to repair P1476 in a 2015 Chevrolet Silverado can vary depending on the specific cause of the code and the complexity of the repair process, but it may take a few hours to a full day to complete the necessary repairs.