Engine-CodesGeneric – P0C49

P0C49 Code - Hybrid Battery Pack Coolant Pump Control Circuit High

Quick Answer

The diagnostic trouble code (DTC) P0C49 indicates a problem with the Hybrid Battery Pack Coolant Pump Control Circuit being too high. Common causes include Faulty Coolant Pump: The most common cause of this code is a malfunctioning hybrid battery pack coolant pump that is not operating within the specified parameters, Wiring Issues: Problems with the wiring harness or connectors related to the coolant pump control circuit can also trigger this code, Software Glitch: An issue with the hybrid system's software or control module can cause erroneous readings and trigger the code. 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
P0C49 indicates Hybrid Battery Pack Coolant Pump Control Circuit High.
Common causes
Common causes include Faulty Coolant Pump: The most common cause of this code is a malfunctioning hybrid battery pack coolant pump that is not operating within the specified parameters, Wiring Issues: Problems with the wiring harness or connectors related to the coolant pump control circuit can also trigger this code, Software Glitch: An issue with the hybrid system's software or control module can cause erroneous readings and trigger the code.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0C49 Description

The diagnostic trouble code (DTC) P0C49 indicates a problem with the Hybrid Battery Pack Coolant Pump Control Circuit being too high. In hybrid vehicles, the battery pack coolant pump helps maintain the optimal temperature of the battery pack to ensure efficient operation and prevent overheating. When this code is triggered, it means that the control circuit for the coolant pump is reading a voltage or signal that is higher than the specified range, indicating a potential issue with the pump or its control system.

OBDII Code P0C49 - Hybrid Battery Pack Coolant Pump Control Circuit High
P0C49 Code - Hybrid Battery Pack Coolant Pump Control Circuit High

Common Causes of P0C49

  1. Faulty Coolant Pump: The most common cause of this code is a malfunctioning hybrid battery pack coolant pump that is not operating within the specified parameters.
  2. Wiring Issues: Problems with the wiring harness or connectors related to the coolant pump control circuit can also trigger this code.
  3. Software Glitch: An issue with the hybrid system's software or control module can cause erroneous readings and trigger the code.
  4. Low Coolant Level: Insufficient coolant in the battery pack cooling system can lead to overheating and trigger this code.
  5. Sensor Malfunction: A faulty temperature sensor or coolant level sensor can misread the data and cause the code to be set.

Symptoms of P0C49

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Overheating: The hybrid system may experience overheating due to the ineffective cooling of the battery pack, leading to decreased performance.
  3. Reduced Power: The vehicle may go into a reduced power mode to prevent further damage to the battery pack.
  4. Battery Pack Issues: The hybrid system may experience issues related to the battery pack, such as reduced range or power output.

How to Fix P0C49

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the specific code and perform a thorough inspection of the coolant pump, wiring, and sensors to identify the root cause of the problem.
  2. Replace Coolant Pump: If the coolant pump is found to be faulty, it will need to be replaced with a new unit that meets the manufacturer's specifications.
  3. Check Wiring and Connectors: Inspect the wiring harness and connectors for any damage or corrosion, repairing or replacing as necessary.
  4. Reset Codes: After completing the repairs, clear the DTCs from the vehicle's computer using the diagnostic scanner to reset the system and ensure the issue has been resolved.
  5. Test Drive: Take the vehicle for a test drive to confirm that the repair has fixed the issue and that the check engine light does not come back on.

Cost to Fix P0C49

The cost of repairing a Hybrid Battery Pack Coolant Pump Control Circuit High issue can vary depending on the extent of the problem, the specific components that need to be replaced, and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $800 for parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's best to get a quote from a reputable auto repair shop in your area.

Need more information about the P0C49 code?

Need more information on how to fix the P0C49 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0C49 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 P0C49 Code

No Frequently Asked Questions about P0C49 Code found.

Discuss the causes and fixes for P0C49 OBDII Code

Code P0C49 comments

No comments found for this page.