P1475 2017 Chevrolet Silverado Code - Particulate Matter Sensor Electrode Supply Circuit Low 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
- P1475 2017 Chevrolet Silverado indicates Particulate Matter Sensor Electrode Supply Circuit Low 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 P1475 2017 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 P1475 2017 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 P1475 2017 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 P1475 2017 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 P1475 2017 Chevrolet Silverado Code
What does the OBDII code P1475 mean on a 2017 Chevrolet Silverado?
P1475 indicates a low voltage issue in the particulate matter sensor electrode supply circuit, which monitors soot levels in the exhaust system.
What are the symptoms of code P1475 in a 2017 Chevrolet Silverado?
Common symptoms include the check engine light turning on, reduced engine performance, poor fuel economy, and excessive exhaust smoke.
What causes code P1475 in a 2017 Chevrolet Silverado?
Possible causes include a faulty particulate matter sensor, damaged wiring or connectors in the sensor circuit, or an issue with the engine control module (ECM).
Can I drive my 2017 Chevrolet Silverado with code P1475?
Driving with code P1475 may lead to reduced performance and increased emissions. It's best to address the issue promptly to avoid potential damage to the exhaust or emissions systems.
How do you diagnose the cause of code P1475?
A technician will inspect the particulate matter sensor, wiring, and connectors for damage, use a multimeter to check the circuit voltage, and possibly test the ECM for faults.
What repairs are needed to fix code P1475?
Repairs may involve replacing the particulate matter sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
How much does it cost to fix code P1475 on a 2017 Chevrolet Silverado?
Repair costs vary but can range from $200 to $600 depending on whether the sensor, wiring, or ECM needs replacement or repair.
Can a clogged diesel particulate filter (DPF) cause code P1475?
While a clogged DPF typically triggers other codes, it can indirectly affect the particulate matter sensor's performance and should be inspected.
How can I prevent code P1475 from occurring again?
Regular maintenance, such as inspecting the DPF and ensuring the sensor wiring is intact, can help prevent this code from reoccurring.
Does the particulate matter sensor need to be calibrated after replacement?
Yes, recalibration or reprogramming of the ECM may be required after replacing the sensor to ensure proper functionality.
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