P1474 2016 GMC Sierra Code - Particulate Matter Sensor Electrode Supply Circuit
Quick Answer
The P1474 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Particulate Matter Sensor Electrode Supply Circuit. Common causes include Faulty particulate matter sensor, Wiring or connector issues in the electrode supply circuit, Corrosion or damage to the sensor or circuit components. 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
- P1474 2016 GMC Sierra indicates Particulate Matter Sensor Electrode Supply Circuit.
- Common causes
- Common causes include Faulty particulate matter sensor, Wiring or connector issues in the electrode supply circuit, Corrosion or damage to the sensor or circuit components.
- 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 P1474 2016 GMC Sierra Description
The P1474 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Particulate Matter Sensor Electrode Supply Circuit. This code indicates a problem with the circuit that supplies power to the particulate matter sensor in the vehicle's exhaust system. The particulate matter sensor is responsible for monitoring the amount of soot and other harmful particles emitted by the engine. If the sensor is not functioning properly, it can lead to increased emissions, reduced fuel efficiency, and potential damage to the engine and emissions control system.
Common Causes of P1474 2016 GMC Sierra
- Faulty particulate matter sensor
- Wiring or connector issues in the electrode supply circuit
- Corrosion or damage to the sensor or circuit components
- Electrical system malfunctions
- Software or programming issues in the engine control module
Symptoms of P1474 2016 GMC Sierra
- Check engine light illuminated on the dashboard
- Decreased fuel efficiency
- Reduced engine performance
- Increased emissions
- Rough idling or stalling
How to Fix P1474 2016 GMC Sierra
- Begin by conducting a thorough inspection of the particulate matter sensor, wiring, and connectors to identify any visible damage or corrosion.
- Test the sensor's functionality using a multimeter to check for proper voltage and resistance readings.
- If the sensor is determined to be faulty, replace it with a new, OEM-quality part.
- Inspect and repair any damaged wiring or connectors in the electrode supply circuit.
- Clear the DTC from the vehicle's computer using a diagnostic scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1474 2016 GMC Sierra
The cost of repairing a P1474 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of parts for this repair could range from $100 to $300, with labor costs adding an additional $100 to $200. Overall, the total repair cost could be between $200 and $500. It's important to note that these estimates are approximate and actual costs may vary based on the location, vehicle make and model, and other factors. It's recommended to consult with a qualified mechanic for a more accurate cost estimate.
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Frequently Asked Questions about P1474 2016 GMC Sierra Code
What does the OBDII code P1474 indicate for a 2016 GMC Sierra?
Code P1474 refers to an issue with the Particulate Matter Sensor Electrode Supply Circuit, indicating a problem in the electrical circuit supplying power to the particulate matter sensor.
What are the common symptoms associated with the P1474 code?
Common symptoms include a check engine light, reduced engine performance, increased emissions, and possible issues with the vehicle's fuel economy.
What could cause the P1474 code to trigger?
The P1474 code can be triggered by a faulty particulate matter sensor, wiring issues, poor electrical connections, or a malfunctioning Engine Control Module (ECM).
How can I diagnose the P1474 code?
To diagnose the P1474 code, use an OBD-II scanner to confirm the code, visually inspect the wiring and connections to the particulate matter sensor, and check the sensor’s functionality with a multimeter.
What are some common repairs for the P1474 code?
Common repairs include replacing the particulate matter sensor, repairing or replacing damaged wiring or connectors, and reprogramming or replacing the ECM if necessary.
Can I drive my 2016 GMC Sierra with the P1474 code?
While it may be possible to drive with the P1474 code, it is not recommended as it may lead to decreased performance and increased emissions.
How much does it cost to fix the P1474 code?
Repair costs can vary widely depending on the underlying issue, but you may expect to pay anywhere from $100 to $500 or more, depending on whether you need to replace the sensor, repair wiring, or address ECM issues.
Is the P1474 code serious?
Yes, the P1474 code can indicate a serious issue that affects the vehicle's emission system and overall performance, so it should be addressed promptly.
Will clearing the P1474 code reset the check engine light?
Clearing the P1474 code may reset the check engine light temporarily, but if the underlying issue is not fixed, the code will likely return.
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