P0C5C 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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.
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Frequently Asked Questions about P0C5C 2016 GMC Sierra Code
What does the OBDII code P0C5C mean on a 2016 GMC Sierra?
The P0C5C code indicates a problem with the Drive Motor Position Sensor Circuit 2, specifically low voltage being detected in the circuit.
What are the symptoms of the P0C5C code on a 2016 GMC Sierra?
Common symptoms include reduced vehicle performance, illuminated check engine light, possible loss of hybrid or EV functionality, and unusual drivability issues.
What causes the P0C5C code on a 2016 GMC Sierra?
Typical causes include a faulty drive motor position sensor, damaged wiring or connectors in the sensor circuit, or issues with the hybrid/EV control module.
Can I drive my 2016 GMC Sierra with the P0C5C code active?
Driving with this code is not recommended, as it may lead to reduced performance or further damage to the hybrid/EV system.
How do I diagnose the P0C5C code on a 2016 GMC Sierra?
Diagnosis involves scanning for additional codes, visually inspecting the sensor wiring and connectors, and testing the drive motor position sensor for proper voltage and resistance.
How is the P0C5C code repaired on a 2016 GMC Sierra?
Repairs may include replacing the drive motor position sensor, repairing damaged wiring or connectors, or reprogramming the hybrid/EV control module if necessary.
What tools are needed to diagnose and repair the P0C5C code?
Key tools include an OBDII scanner, a multimeter for testing voltage and resistance, and potentially specialized hybrid system diagnostic equipment.
Can a faulty hybrid/EV control module cause the P0C5C code?
Yes, a malfunctioning hybrid/EV control module can occasionally cause the P0C5C code, but this is less common than sensor or wiring issues.
How much does it cost to repair the P0C5C code on a 2016 GMC Sierra?
Repair costs vary, but sensor replacement typically ranges from $200 to $500, while wiring repairs or module replacement could be more expensive.
Is the P0C5C code specific to the 2016 GMC Sierra?
No, the P0C5C code can appear on other hybrid or EV vehicles with similar drive motor position sensor systems, but the troubleshooting steps may differ.
Discuss the causes and fixes for P0C5C 2016 GMC Sierra OBDII Code
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