AutoCodes – GMC – P0C5C GMC

P0C5C GMC Code - Drive Motor 1 Position Sensor Circuit 2 Low Voltage

Quick Answer

The drive motor position sensor is monitored by the motor control module. Common causes include Faulty Drive Motor 1 Position Sensor, Drive Motor 1 Position Sensor harness is open or shorted, Drive Motor 1 Position Sensor 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 GMC indicates Drive Motor 1 Position Sensor Circuit 2 Low Voltage.
Common causes: Common causes include Faulty Drive Motor 1 Position Sensor, Drive Motor 1 Position Sensor harness is open or shorted, Drive Motor 1 Position Sensor 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.

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Code Popularity 1,275

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 07, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0C5C GMC Description

The drive motor position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed, and direction of the drive motor rotor based upon the signals of the resolver-type 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 drive motor. At vehicle ON, the motor control module outputs a 7 V AC, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular-shaped rotor. The motor control module then monitors the two driven coil circuits for return signals, often referred to as Sine and Cosine waveforms, abbreviated SIN and COS. 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 coil signals allows the motor control module to determine the exact position, speed, and direction of the drive motor rotor. The drive motor 1 position sensor is serviceable separately from the drive motor assembly. The Diagnostic Trouble Code (DTC) will be set when the circuit voltage is less than 0.5 V.

OBDII Code P0C5C GMC - Drive Motor 1 Position Sensor Circuit 2 Low Voltage - AutoCodes.com — P0C5C GMC Code - Drive Motor 1 Position Sensor Circuit 2 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0C5C GMC?

Faulty Drive Motor 1 Position Sensor
Drive Motor 1 Position Sensor harness is open or shorted
Drive Motor 1 Position Sensor circuit poor electrical connection
Faulty Power Inverter Module

How to Fix the DTC P0C5C GMC?

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 GMC 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 GMC code?

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Need Help with the Code?

Get the P0C5C GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P0C5C 2016 GMC Sierra — Drive Motor Position Sensor Circuit 2 Low Voltage
P0C5C 2017 GMC Sierra — Drive Motor Position Sensor Circuit 2 Low Voltage
P0C5C 2018 GMC Sierra — Drive Motor Position Sensor Circuit 2 Low Voltage

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0C5C GMC Code

1. What are common symptoms of OBDII code P0C5C GMC (Drive Motor 1 Position Sensor Circuit 2 Low Voltage)?

The common symptoms include check engine light illumination, reduced engine performance, and potential drivability issues.

2. What are the possible causes of OBDII code P0C5C GMC?

Possible causes may include a faulty drive motor position sensor, damaged wiring or connectors in the sensor circuit, or issues with the drive motor control module.

3. How can I diagnose OBDII code P0C5C GMC?

Diagnosis typically involves using a scan tool to retrieve the fault code, checking the drive motor position sensor and its circuit for faults, and testing the drive motor control module for proper functioning.

4. Can I continue driving my vehicle with OBDII code P0C5C GMC present?

It is not recommended to drive the vehicle with this fault code present, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

5. How can I repair OBDII code P0C5C GMC?

Repair options may include replacing the faulty drive motor position sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the drive motor control module.

6. Are there any DIY tips for addressing OBDII code P0C5C GMC?

While some basic troubleshooting steps can be performed by DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and repair of this code.

7. Can a faulty drive motor position sensor cause other issues in the vehicle?

Yes, a faulty drive motor position sensor can lead to drivability issues, reduced engine performance, and potential damage to other components if not addressed promptly.

8. How much does it typically cost to repair OBDII code P0C5C GMC?

The cost of repair can vary depending on the specific issue causing the fault code and the labor rates of the repair shop. It is advisable to get a diagnostic and repair estimate from a qualified mechanic.

9. Is OBDII code P0C5C GMC a common issue in GMC vehicles?

While this fault code may not be as common as some other OBDII codes, it can still occur in GMC vehicles equipped with drive motors and position sensors.

10. Can regular maintenance help prevent OBDII code P0C5C GMC from appearing?

Regular maintenance, including checking and servicing the drive motor components, can help prevent issues that may lead to this fault code.