AutoCodes – GMC – P0C61 GMC

P0C61 GMC Code - Drive Motor 2 Position Sensor Circuit 2 Low Voltage

Quick Answer

The drive motor generator position sensor is monitored by the motor control module. Common causes include Faulty Drive Motor Generator, Drive Motor Generator harness is open or shorted, Drive Motor 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: P0C61 GMC indicates Drive Motor 2 Position Sensor Circuit 2 Low Voltage.
Common causes: Common causes include Faulty Drive Motor Generator, Drive Motor Generator harness is open or shorted, Drive Motor 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.

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Code Popularity 1,002

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 Mar 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0C61 GMC Description

The drive motor generator position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed and direction of the drive motor generator 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 generator. At vehicle ON, the motor control module outputs a 7 volt 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 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 motor control module to determine the exact position, speed and direction of the drive motor generator rotor. The position sensor is a non-serviceable part of the drive motor generator.

OBDII Code P0C61 GMC - Drive Motor 2 Position Sensor Circuit 2 Low Voltage - AutoCodes.com — P0C61 GMC Code - Drive Motor 2 Position Sensor Circuit 2 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0C61 GMC?

Faulty Drive Motor Generator
Drive Motor Generator harness is open or shorted
Drive Motor Generator circuit poor electrical connection

How to Fix the DTC P0C61 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 P0C61 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 P0C61 GMC code?

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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 P0C61 GMC Code

What does the OBDII code P0C61 mean on a GMC vehicle?

P0C61 indicates that the Drive Motor 2 Position Sensor Circuit 2 is experiencing low voltage, which may affect the performance of the hybrid or electric drive motor system.

What are the common symptoms of the P0C61 code in a GMC?

Symptoms may include reduced power, erratic or limited acceleration, warning lights such as the check engine light or hybrid system malfunction, and possible stalling.

What causes the P0C61 code to be triggered?

Common causes include a faulty drive motor position sensor, damaged or corroded wiring, poor electrical connections, or issues with the hybrid drive motor control module.

How can I diagnose the P0C61 code?

Start by scanning the vehicle with an OBDII scanner, inspect the wiring and connectors for damage or corrosion, and test the position sensor's functionality using a multimeter.

Can I drive my GMC with the P0C61 code active?

It is not recommended to drive with this code active, as it can lead to reduced performance, safety concerns, and potential damage to the hybrid or electric drivetrain.

How much does it cost to fix the P0C61 code?

Repair costs can vary but may include $100â€“$300 for a diagnostic check and $200â€“$700 or more if the drive motor position sensor needs replacement.

Is the P0C61 code related to the hybrid or electric drive system?

Yes, this code specifically pertains to the hybrid or electric drive motor system and its position sensor, which monitors motor rotation for proper operation.

What tools are needed to troubleshoot the P0C61 code?

Common tools include an OBDII scanner, a digital multimeter for testing voltage, and possibly wiring diagrams for the specific GMC model.

Can a software update fix the P0C61 code?

In some cases, a software update to the hybrid control module may resolve the issue if it is related to a programming glitch, but this is less common.

What should I check first when diagnosing the P0C61 code?

Begin by inspecting the wiring and connectors associated with Drive Motor 2 Position Sensor Circuit 2 for visible damage, looseness, or corrosion.