AutoCodes – Buick – P1475 Buick

P1475 Buick 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 Buick 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 439

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 Sep 30, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1475 Buick 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 P1475 Buick - Particulate Matter Sensor Electrode Supply Circuit Low Voltage - AutoCodes.com — P1475 Buick Code - Particulate Matter Sensor Electrode Supply Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1475 Buick?

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 Buick?

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 Buick 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 P1475 Buick code?

Need more information on how to fix the P1475 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1475 Buick code diagnosed by a professional: Find a repair shop in your area

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 P1475 Buick Code

1. What are the common symptoms of OBDII code P1475 in a Buick related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage?

- Common symptoms include poor engine performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1475 in a Buick related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage?

- Possible causes include a faulty particulate matter sensor, damaged wiring or connectors, or a malfunctioning powertrain control module (PCM).

3. How can I diagnose OBDII code P1475 in a Buick related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage?

- Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, visually inspecting the sensor and its connections, and performing electrical tests to check for proper voltage.

4. What are the repair options for fixing OBDII code P1475 in a Buick related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage?

- Repair options may include replacing the particulate matter sensor, repairing or replacing damaged wiring or connectors, or reprogramming the PCM if necessary.

5. Can I continue driving my Buick with OBDII code P1475 related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further engine damage or emissions issues. It is best to address the problem promptly.

6. Will resetting the check engine light make OBDII code P1475 related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage go away?

- Resetting the check engine light may temporarily turn it off, but if the underlying issue causing the code is not addressed, the light is likely to come back on.

7. How long does it typically take to repair OBDII code P1475 related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage in a Buick?

- The repair time can vary depending on the exact cause of the code and the availability of parts, but it may take anywhere from a few hours to a full day to complete the repair.

8. Can a DIY enthusiast fix OBDII code P1475 related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage in a Buick?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code themselves. However, it is recommended to consult a professional if unsure.

9. Are there any recalls or technical service bulletins related to OBDII code P1475 in Buick vehicles?

- It is advisable to check with the manufacturer or a certified dealership to see if there are any recalls or technical service bulletins related to this specific OBDII code in Buick vehicles.

10. Is it necessary to have the particulate matter sensor calibrated after replacing it to address OBDII code P1475 related to the Particulate Matter Sensor Electrode Supply Circuit Low Voltage?

- Yes, it is important to follow the manufacturer's guidelines and have the particulate matter sensor calibrated properly after replacement to ensure accurate readings and optimal performance.