P0C5C 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado?
- 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 2018 Chevrolet Silverado?
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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code
1. What does the OBDII code P0C5C mean on a 2018 Chevrolet Silverado?
The P0C5C code indicates a "Drive Motor Position Sensor Circuit 2 Low Voltage," meaning the vehicle's system has detected a low voltage issue in the second circuit of the drive motor position sensor.
2. What are the symptoms of the P0C5C code in a 2018 Chevrolet Silverado?
Common symptoms include reduced or no electric motor performance, poor acceleration, a check engine light, and possible activation of limp mode.
3. What causes the P0C5C code to appear?
Possible causes include a faulty drive motor position sensor, damaged or corroded wiring, a poor electrical connection in the circuit, or an issue with the vehicle's hybrid or electric drive control module.
4. Can I drive my 2018 Chevrolet Silverado with the P0C5C code?
It is not recommended to drive with this code active, as it may lead to reduced performance or potential damage to the drive motor or hybrid system.
5. How is the P0C5C code diagnosed?
A technician will use a scan tool to read the code, inspect the drive motor position sensor and its circuits for damage or loose connections, and test the sensor's voltage and resistance.
6. How do you fix the P0C5C code on a 2018 Chevrolet Silverado?
Repairs may involve replacing the drive motor position sensor, repairing damaged wiring or connectors, or reprogramming/updating the hybrid control module if necessary.
7. How much does it cost to fix the P0C5C code?
Repair costs vary but can range from $200 to $800 or more, depending on whether the sensor, wiring, or control module needs repair or replacement.
8. Can a low battery cause the P0C5C code?
A weak or failing high-voltage battery could contribute to voltage issues, but the specific issue is usually related to the sensor or its circuitry.
9. Is the P0C5C code specific to electric or hybrid Chevrolet Silverados?
Yes, this code typically applies to hybrid or electric versions of the Silverado, as it relates to the drive motor and its position sensor.
10. What happens if the P0C5C code is ignored?
Ignoring the P0C5C code may lead to further damage to the hybrid/electric drive system, reduced vehicle performance, or even complete loss of propulsion.
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