P1474 2017 GMC Sierra Code - Particulate Matter Sensor Electrode Supply Circuit
Quick Answer
The P1474 diagnostic trouble code (DTC) for the 2017 GMC Sierra relates to the Particulate Matter Sensor Electrode Supply Circuit. Common causes include Wiring issues, Faulty particulate matter sensor, Blown fuse. 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 2017 GMC Sierra indicates Particulate Matter Sensor Electrode Supply Circuit.
- Common causes
- Common causes include Wiring issues, Faulty particulate matter sensor, Blown fuse.
- 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 2017 GMC Sierra Description
The P1474 diagnostic trouble code (DTC) for the 2017 GMC Sierra relates to the Particulate Matter Sensor Electrode Supply Circuit. This code indicates that there is an issue 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 particulate matter, such as soot and ash, in the exhaust gases. This information is crucial for the vehicle's emissions control system to function properly.
Common Causes of P1474 2017 GMC Sierra
- Wiring issues
- Faulty particulate matter sensor
- Blown fuse
- Poor connection to the vehicle's computer
- Corrosion or damage to the sensor's electrodes
Symptoms of P1474 2017 GMC Sierra
- Reduced engine power
- Increased fuel consumption
- Rough idling or stalling
- Failed emissions test
- Check Engine Light illuminated
How to Fix P1474 2017 GMC Sierra
- Diagnose the issue using a diagnostic scanner to confirm the P1474 code and pinpoint the exact cause of the problem.
- Inspect the wiring and connections related to the particulate matter sensor for any signs of damage or corrosion.
- Test the sensor itself to determine if it is functioning properly or needs to be replaced.
- Check the fuse related to the sensor and replace if necessary.
- Clear the code from the vehicle's computer after completing the repairs and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1474 2017 GMC Sierra
The typical repair costs for resolving a P1474 code can vary depending on the specific cause of the issue. In general, the cost of parts for this repair can range from $50 to $200, while the labor costs may range from $100 to $300. However, it's important to note that these estimates are rough approximations and actual costs can vary based on factors such as location, vehicle make and model, and labor rates at the repair shop. It's recommended to consult with a professional mechanic to get an accurate estimate for your specific situation.
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Frequently Asked Questions about P1474 2017 GMC Sierra Code
1. What does the OBDII code P1474 mean on a 2017 GMC Sierra?
P1474 indicates an issue with the Particulate Matter Sensor Electrode Supply Circuit, which monitors the exhaust system for particulate levels.
2. What are common symptoms of the P1474 code on a GMC Sierra?
Symptoms may include a check engine light, reduced fuel efficiency, decreased engine performance, or the vehicle entering limp mode.
3. What causes the P1474 code to appear on a 2017 GMC Sierra?
Potential causes include a faulty particulate matter sensor, damaged wiring or connectors, or issues with the sensor's power or ground supply.
4. Can I drive my 2017 GMC Sierra with a P1474 code?
While the vehicle may still be drivable, it is not recommended to ignore the issue as it could lead to further engine or exhaust system damage.
5. How is P1474 diagnosed on a 2017 GMC Sierra?
A mechanic typically uses a diagnostic scanner to confirm the code, inspects the particulate matter sensor and wiring, and tests the circuit for proper voltage and continuity.
6. How do I fix the P1474 code on my GMC Sierra?
Repairs may include replacing the particulate matter sensor, repairing or replacing damaged wiring, or addressing power supply issues in the circuit.
7. Is the P1474 code related to the diesel particulate filter (DPF)?
Yes, the particulate matter sensor works in conjunction with the DPF to monitor and manage exhaust emissions.
8. What tools are needed to troubleshoot the P1474 code?
You will need an OBDII scanner, a multimeter to check the circuit, and possibly wiring repair tools if there is damage.
9. How much does it cost to repair a P1474 code on a GMC Sierra?
Repair costs vary but may range from $200 to $600, depending on whether the sensor, wiring, or additional components need replacement.
10. Can a software update fix the P1474 code?
In some cases, a software update to the engine control module (ECM) may resolve the issue, but this depends on the specific circumstances and diagnosis.
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