AutoCodes – Buick – P0C01 Buick

P0C01 Buick Code - Drive Motor High Current

Quick Answer

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. Common causes include Faulty Starter Generator Control Module, Starter Generator Control Module harness is open or shorted, Starter Generator Control Module 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: P0C01 Buick indicates Drive Motor High Current.
Common causes: Common causes include Faulty Starter Generator Control Module, Starter Generator Control Module harness is open or shorted, Starter Generator Control Module 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 630

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 Nov 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0C01 Buick Description

The generator control module also called the starter generator control module is comprised of the following three control modules; the hybrid powertrain control module, 14 volt power module and the drive motor control module. These three control modules are non serviceable and are part of the generator control module.
The drive motor control module operates the starter generator, also referred to as the drive motor based upon hybrid powertrain control module commands. The drive motor control module controls the speed and output torque of the starter generator through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors. Each insulated gate bipolar transistor assembly is monitored for overcurrent conditions.

OBDII Code P0C01 Buick - Drive Motor High Current - AutoCodes.com — P0C01 Buick Code - Drive Motor High Current

What does this mean?

What are the Possible Causes of the DTC P0C01 Buick?

Faulty Starter Generator Control Module
Starter Generator Control Module harness is open or shorted
Starter Generator Control Module circuit poor electrical connection

How to Fix the DTC P0C01 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 P0C01 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.

Need more information about the P0C01 Buick code?

Need more information on how to fix the P0C01 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0C01 Buick code diagnosed by a professional: Find a repair shop in your area

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 P0C01 Buick Code

1. What does the OBDII code P0C01 mean for a Buick?

P0C01 indicates that the vehicleâ€™s powertrain control module (PCM) has detected a high current condition in the drive motor circuit, which could affect the electric motor's performance.

2. What are the common symptoms of the P0C01 code on a Buick?

Symptoms may include reduced performance, illuminated check engine light, poor acceleration, unusual noises from the motor, or the vehicle entering limp mode.

3. What causes the P0C01 code to appear in a Buick?

Common causes include a faulty drive motor, damaged wiring or connectors in the motor circuit, a failing inverter, or a malfunctioning PCM.

4. Can I continue driving my Buick with the P0C01 code?

Itâ€™s not recommended to continue driving, as the issue can lead to further damage to the electric motor or related components, and the vehicle may experience reduced performance.

5. How is the P0C01 code diagnosed in a Buick?

A technician will use a scan tool to confirm the code, inspect the motor circuit wiring and connectors for damage, and test the drive motor and inverter for faults.

6. How do you fix the P0C01 code on a Buick?

Repairs may include replacing the drive motor, repairing or replacing damaged wiring or connectors, or replacing the inverter or PCM if they are faulty.

7. How much does it cost to fix the P0C01 code on a Buick?

Costs can vary widely depending on the issue. Wiring repairs may cost a few hundred dollars, while replacing the drive motor or inverter could cost several thousand dollars.

8. Can a dead battery cause the P0C01 code in a Buick?

While unlikely, a severely drained or malfunctioning high-voltage battery could potentially cause issues with the motor circuit, leading to this code.

9. Is the P0C01 code specific to electric or hybrid Buicks?

Yes, this code is specific to vehicles with an electric drive motor, such as hybrid or fully electric Buick models.

10. Can clearing the P0C01 code fix the issue in my Buick?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be addressed to prevent the code from returning and to ensure safe operation.