P165C 2017 GMC Sierra Code - Sensor Reference Voltage Status Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Sensor Reference Voltage. 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
- P165C 2017 GMC Sierra indicates Sensor Reference Voltage Status Message Counter Incorrect.
- Common causes
- Common causes include Faulty Sensor Reference Voltage.
- 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 P165C 2017 GMC Sierra Description
What are the Possible Causes of the DTC P165C 2017 GMC Sierra?
- Faulty Sensor Reference Voltage
How to Fix the DTC P165C 2017 GMC Sierra?
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 P165C 2017 GMC Sierra 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 P165C 2017 GMC Sierra code?
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Frequently Asked Questions about P165C 2017 GMC Sierra Code
1. What does the OBDII code P165C mean on a 2017 GMC Sierra?
P165C indicates that the sensor reference voltage status message counter from the Engine Control Module (ECM) is incorrect, suggesting a communication or voltage issue.
2. What are the common symptoms of code P165C on a 2017 GMC Sierra?
Symptoms may include a check engine light, reduced engine performance, erratic sensor readings, or difficulty starting.
3. What causes the P165C code on a 2017 GMC Sierra?
Possible causes include a faulty ECM, damaged wiring or connectors in the reference voltage circuit, or a malfunctioning sensor.
4. How do I diagnose the P165C code on my 2017 GMC Sierra?
Start by inspecting the wiring and connectors for damage, checking the reference voltage circuit, and using a diagnostic scanner to confirm ECM communication issues.
5. Can a bad sensor cause the P165C code on a 2017 GMC Sierra?
Yes, a malfunctioning sensor that uses the reference voltage circuit can cause this code if it disrupts the voltage signal.
6. Is the P165C code serious on a 2017 GMC Sierra?
Yes, it can be serious as it may affect engine performance and lead to unsafe driving conditions if not addressed promptly.
7. How much does it cost to fix the P165C code on a 2017 GMC Sierra?
Repair costs can vary but may include $50-$150 for diagnostics and additional costs for wiring repairs, sensor replacement, or ECM repair if necessary.
8. Can I drive my 2017 GMC Sierra with a P165C code?
It’s not recommended as it could lead to further damage or erratic engine behavior. Address the issue as soon as possible.
9. What tools are needed to troubleshoot the P165C code on a 2017 GMC Sierra?
You’ll need an OBDII scanner, a multimeter to check voltage, and possibly a repair manual for wiring diagrams.
10. Can clearing the P165C code fix the problem on a 2017 GMC Sierra?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning.
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