P0C5C 2017 GMC Sierra Code - Drive Motor Position Sensor Circuit 2 Low Voltage
Quick Answer
The generator control module also called the starter/generator control module, is comprised of the following three control modules: the hybrid/EV powertrain control module 1, 14 V power module, and the drive motor control module. Common causes include Faulty Starter/Generator, Starter/Generator harness is open or shorted, Starter/Generator 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
- P0C5C 2017 GMC Sierra indicates Drive Motor Position Sensor Circuit 2 Low Voltage.
- Common causes
- Common causes include Faulty Starter/Generator, Starter/Generator harness is open or shorted, Starter/Generator 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 P0C5C 2017 GMC Sierra Description
The generator control module monitors the angular position, speed, and direction of the starter generator rotor based upon the signals of the resolver-type motor position sensor. The position sensor contains a drive coil, two driven coils, and an irregular-shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the starter generator.
At ignition ON, an AC voltage, 10 kHz excitation signal is output to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular-shaped rotor. The generator control module then monitors the two driven coil circuits for a return signal. The position of the irregular metallic rotor causes the magnetically induced return signals of the driven coils to vary in size and shape. A comparison of the two driven coils signals allows the generator control module to determine the exact position, speed, and direction of the starter generator rotor. The position sensor is a non-serviceable part of the starter generator.
The Diagnostic Trouble Code (DTC) will be set when the Drive Motor Position Sensor Circuit 2 reference voltage is less than 0.1 V.
What are the Possible Causes of the DTC P0C5C 2017 GMC Sierra?
- Faulty Starter/Generator
- Starter/Generator harness is open or shorted
- Starter/Generator circuit poor electrical connection
- Faulty Starter/Generator Control Module
How to Fix the DTC P0C5C 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 P0C5C 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 P0C5C 2017 GMC Sierra code?
Need more information on how to fix the P0C5C 2017 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0C5C 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0C5C 2017 GMC Sierra Code
1. What does the OBDII code P0C5C mean on a 2017 GMC Sierra?
P0C5C indicates a low voltage condition in Circuit 2 of the Drive Motor Position Sensor, which monitors the position of the electric motor in hybrid or electric vehicles.
2. What are the common symptoms of code P0C5C on a GMC Sierra?
Symptoms may include reduced engine performance, check engine light illumination, limited hybrid system operation, or difficulty shifting.
3. What causes the P0C5C code to appear on a 2017 GMC Sierra?
Common causes include a faulty drive motor position sensor, damaged wiring or connectors in Circuit 2, or issues with the hybrid control module.
4. Can a P0C5C code affect vehicle performance?
Yes, it can lead to reduced performance, limited hybrid capabilities, or even the vehicle entering a limp mode to protect the drivetrain.
5. How do you diagnose the P0C5C code on a GMC Sierra?
Diagnosis involves scanning for codes, inspecting wiring and connectors for damage, testing the drive motor position sensor, and checking the hybrid control module for faults.
6. Is it safe to drive with a P0C5C code on a 2017 GMC Sierra?
Driving with this code is not recommended as it may cause further damage to the hybrid system or lead to unsafe driving conditions.
7. How can you fix the P0C5C code on a GMC Sierra?
Repairs may include replacing the drive motor position sensor, repairing damaged wiring or connectors, or reprogramming/repairing the hybrid control module.
8. How much does it cost to repair the P0C5C code on a 2017 GMC Sierra?
Repair costs can vary, but replacing the drive motor position sensor typically ranges from $200 to $600, excluding labor.
9. Can a weak battery cause the P0C5C code in a GMC Sierra?
Yes, a weak or failing hybrid battery may contribute to low voltage conditions triggering this code.
10. Will clearing the code fix the P0C5C issue on a GMC Sierra?
Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return.
Discuss the causes and fixes for P0C5C 2017 GMC Sierra OBDII Code
Code P0C5C 2017 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
