AutoCodes – Buick – P0C47 Buick

P0C47 Buick Code - Hybrid/EV Battery Pack Coolant Pump Control Circuit

Quick Answer

What it means: P0C47 Buick indicates Hybrid/EV Battery Pack Coolant Pump Control Circuit.
Common causes: Common causes include Faulty Hybrid/EV Battery Pack Coolant Pump, Hybrid/EV Battery Pack Coolant Pump harness is open or shorted, Hybrid/EV Battery Pack Coolant Pump 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 1,018

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 Apr 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0C47 Buick Description

The hybrid/EV battery pack coolant pump circulates coolant through the drive motor battery coolant radiator, drive motor battery coolant cooler and the hybrid/EV battery pack to control the temperature of the hybrid/EV battery pack. An enable signal from the hybrid/EV powertrain control module 2 to the hybrid/EV battery pack coolant pump provides overall control of the pump. When this circuit is high, the pump can operate. The pump is controlled with a pulse-width modulated signal from the hybrid/EV powertrain control module 2 to the hybrid/EV battery pack coolant pump. The higher the duty cycle the higher the pump speed. The hybrid/EV battery pack coolant pump provides a hard-wired pulse-width modulated feedback signal to the hybrid/EV powertrain control module 2. During normal operation, this feedback signal provides pump speed information to the hybrid/EV powertrain control module 2. The hybrid/EV battery pack coolant pump has some self-diagnostic capability. If the hybrid/EV battery pack coolant pump determines there is an internal fault it provides this information on this same feedback circuit instead of pump speed information.

OBDII Code P0C47 Buick - Hybrid/EV Battery Pack Coolant Pump Control Circuit - AutoCodes.com — P0C47 Buick Code - Hybrid/EV Battery Pack Coolant Pump Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0C47 Buick?

Faulty Hybrid/EV Battery Pack Coolant Pump
Hybrid/EV Battery Pack Coolant Pump harness is open or shorted
Hybrid/EV Battery Pack Coolant Pump circuit poor electrical connection

How to Fix the DTC P0C47 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 P0C47 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.