AutoCodes – Buick – P0C61 Buick

P0C61 Buick 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 Buick 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 880

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

What does this mean?

What are the Possible Causes of the DTC P0C61 Buick?

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 Buick?

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 Buick 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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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 Buick Code

What does the OBDII code P0C61 mean for a Buick?

P0C61 indicates a problem with the Drive Motor 2 Position Sensor Circuit, specifically that the voltage is too low, which can affect the vehicle's hybrid or electric drive system.

What are common symptoms of the P0C61 code?

Symptoms may include poor acceleration, reduced power output, warning lights on the dashboard, and the vehicle may enter limp mode to protect the engine and transmission.

What could cause the P0C61 code to trigger?

Causes can include a faulty position sensor, damaged wiring or connectors in the circuit, issues with the power supply to the sensor, or problems within the motor control module.

How can I diagnose the P0C61 code?

Start by visually inspecting the wiring and connectors for damage, then use a multimeter to check the voltage at the sensor. If the sensor appears fine, further testing of the motor control module may be necessary.

Can I drive my Buick with the P0C61 code?

While it may be driveable, it is not recommended as it can lead to reduced performance and could cause further damage to the vehicle's electrical systems.

What are some potential repair solutions for the P0C61 code?

Repairs may include replacing the faulty position sensor, repairing any damaged wiring or connectors, and reprogramming or replacing the motor control module if necessary.

Is the P0C61 code related to hybrid or electric vehicles?

Yes, this code is particularly relevant for hybrid or electric vehicles, as it pertains to the operation of the drive motors that are essential for their function.

How can I prevent the P0C61 code from recurring?

Regular maintenance of your vehicle's electrical systems, including checking wiring and connectors, can help prevent issues. Additionally, promptly addressing any warning signs or symptoms can reduce the risk of future codes.

Should I clear the P0C61 code after repairs?

Yes, after completing repairs, you should clear the code using an OBDII scanner to reset the system. Monitor the vehicle afterward to ensure the issue does not return.