AutoCodes – Chevrolet – P0C11 Chevrolet

P0C11 Chevrolet Code - Drive Motor 'A' Inverter Phase U Over Temperature

Quick Answer

The Power Inverter Module, often referred to as the Drive Motor Generator Power Inverter Module, contains two motor control modules and the hybrid powertrain control module. Common causes include Low coolant level in the hybrid cooling system reservoir, Faulty coolant pump. 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: P0C11 Chevrolet indicates Drive Motor 'A' Inverter Phase U Over Temperature.
Common causes: Common causes include Low coolant level in the hybrid cooling system reservoir, Faulty coolant pump.
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 5,040

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 May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0C11 Chevrolet Description

The Power Inverter Module, often referred to as the Drive Motor Generator Power Inverter Module, contains two motor control modules and the hybrid powertrain control module. Each motor control modules operates its respective drive motor generator based upon hybrid powertrain control module commands. Each motor control modules controls the speed, direction and output torque of its respective drive motor generator through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors. Each drive motor generator operates utilizing 3 phase AC. Each insulated gate bipolar transistor operates a single phase of the drive motor generator. Each phase is individually identified as U, V and W. Each motor control modules monitors the temperature of each phase in order to detect power inverter module overtemperature conditions.

OBDII Code P0C11 Chevrolet - Drive Motor 'A' Inverter Phase U Over Temperature - AutoCodes.com — P0C11 Chevrolet Code - Drive Motor 'A' Inverter Phase U Over Temperature

What does this mean?

What are the Possible Causes of the DTC P0C11 Chevrolet?

Low coolant level in the hybrid cooling system reservoir
Faulty coolant pump

How to Fix the DTC P0C11 Chevrolet?

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 P0C11 Chevrolet 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 P0C11 Chevrolet Code

What does the OBDII code P0C11 mean in a Chevrolet?

Code P0C11 indicates that the vehicle's powertrain control module (PCM) has detected an over-temperature condition in the Drive Motor 'A' Inverter Phase U circuit.

What are the common symptoms of code P0C11 in a Chevrolet?

Symptoms may include an illuminated check engine light, reduced vehicle performance, limited acceleration, overheating warnings, or the vehicle entering a limp mode.

What causes the P0C11 code to appear in a Chevrolet?

Common causes include a malfunctioning inverter, cooling system issues, faulty temperature sensors, electrical wiring problems, or excessive heat due to driving conditions.

Is it safe to drive with the P0C11 code?

Driving with this code is not recommended, as overheating the inverter can lead to further damage to the drive motor or electrical components.

How do you diagnose the P0C11 code in a Chevrolet?

Diagnosis typically involves checking for additional codes, inspecting the inverter cooling system, testing the temperature sensor, and examining electrical connections for damage or corrosion.

Can low coolant levels trigger the P0C11 code?

Yes, low coolant levels in the inverter cooling system can cause overheating and trigger this code.

What repairs can fix the P0C11 code?

Repairs may include replacing a faulty inverter, fixing or replacing cooling system components, repairing damaged wiring, or replacing the temperature sensor.

How much does it cost to repair the P0C11 code in a Chevrolet?

Repair costs can vary widely, ranging from $100 for minor fixes like wiring repairs to over $1,000 for replacing the drive motor inverter.

Can a software update resolve the P0C11 code?

In some cases, a software update for the PCM may address issues related to this code, but this depends on the specific vehicle and circumstances.

How can I prevent the P0C11 code from occurring?

Regular maintenance, ensuring proper coolant levels, avoiding excessive heat exposure, and addressing any electrical issues promptly can help prevent this code.