P0C87 DTC Code: An In-Depth Analysis


In the world of automotive diagnostics, DTC codes play a crucial role in identifying and resolving technical issues within vehicles. One such code is the P0C87 DTC code. In this article, we will delve into the details of the P0C87 DTC code, its meaning, causes, symptoms, and potential solutions. So, if you’re facing this particular DTC code on your vehicle’s diagnostic system, read on to gain a comprehensive understanding.

Understanding the P0C87 DTC Code

The P0C87 DTC code specifically relates to hybrid, plug-in hybrid, or electric vehicles. It indicates a problem with the cooling system performance of the vehicle’s high voltage battery. When this DTC code shows up on your diagnostic scanner, it implies that the cooling system is not functioning properly, potentially leading to overheating of the battery, which can have severe consequences if not addressed promptly.

Possible Causes of the P0C87 DTC Code

There are several potential causes for the P0C87 DTC code to appear. Some of the common culprits include:

  1. Faulty Coolant Pump: A malfunctioning coolant pump can result in insufficient circulation of coolant within the high voltage battery cooling system, triggering the P0C87 DTC code.

  2. Coolant Leakage: If there is a leak within the coolant system, it can cause a drop in coolant levels, leading to improper cooling and activating the P0C87 DTC code.

  3. Faulty Temperature Sensor: A faulty temperature sensor in the coolant system may provide inaccurate readings, causing the diagnostic system to throw the P0C87 DTC code.

  4. Clogged Coolant Passages: Accumulation of dirt, debris, or mineral deposits within the coolant passages can restrict the flow of coolant, resulting in ineffective cooling and the appearance of the P0C87 DTC code.

Recognizing Symptoms of the P0C87 DTC Code

Identifying the symptoms associated with the P0C87 DTC code is crucial for prompt diagnosis and resolution. Some common signs that may indicate the presence of this code include:

  • Illuminated Check Engine Light: The appearance of the P0C87 DTC code is usually accompanied by the check engine light turning on, serving as an initial indicator of the problem.

  • Overheating Battery: If the high voltage battery becomes excessively hot, it may result in reduced performance or even complete failure of the battery, indicating the need to address the cooling system issue indicated by the P0C87 DTC code.

  • Reduced Fuel Efficiency: In some cases, a faulty cooling system can lead to increased energy consumption, causing a decrease in fuel efficiency. Keep an eye on your vehicle’s MPG to detect any unusual drops.

Resolving the P0C87 DTC Code

Now that we have explored the meaning, causes, and symptoms of the P0C87 DTC code, it’s time to move on to potential solutions. Here are some steps you can take to address this issue:

  1. Inspect the Coolant System: Start by visually inspecting the coolant system for any visible leaks, damaged hoses, or loose connections. Repair or replace any components that show signs of damage or leakage.

  2. Check Coolant Levels: Ensure that the coolant levels are at the appropriate level. If it’s below the recommended levels, add the necessary coolant and monitor for any changes.

  3. Verify Coolant Pump Operation: Test the functionality of the coolant pump by listening for any unusual noises or vibrations. If the pump is not operating correctly, it may need to be repaired or replaced.

  4. Clean Coolant Passages: In case of suspected blockages or restrictions within the coolant passages, perform a thorough cleaning to remove any dirt, debris, or mineral deposits. This can improve coolant flow and resolve the P0C87 DTC code.

Frequently Asked Questions

1. Can I continue driving with the P0C87 DTC code?

It is not recommended to continue driving with the P0C87 DTC code present. The code indicates a problem with the high voltage battery cooling system, which may result in overheating of the battery. Continued driving can lead to severe damage or failure of the battery, resulting in costly repairs.

2. Can I reset the P0C87 DTC code myself?

While it is possible to reset the DTC codes using a diagnostic scanner or by disconnecting the vehicle’s battery, it is essential to address the underlying issue causing the P0C87 code first. Resetting the code without resolving the problem will only cause it to reappear, potentially leading to further complications.

3. Do I need to take my vehicle to a professional mechanic for P0C87 code diagnosis and repair?

While it is possible to perform some basic inspections and maintenance tasks yourself, it is generally recommended to consult a professional mechanic for accurate diagnosis and repair. They have the expertise, tools, and experience to identify the root cause of the P0C87 DTC code and ensure a thorough resolution, minimizing the risk of further damage.

In conclusion, the P0C87 DTC code signals a problem with the cooling system performance of hybrid, plug-in hybrid, or electric vehicles’ high voltage battery. By understanding the causes, symptoms, and potential solutions outlined in this article, you can address this code promptly, ensuring the proper functioning and longevity of your vehicle’s cooling system. Remember to consult a professional mechanic if you need assistance with diagnosis or repair.

About author


Meet Sam Mitchell, your experienced and reliable guide in the complex world of car fault codes. With a robust career spanning over 15 years as a professional car mechanic, John has the skills, knowledge, and practical experience to help you navigate car fault issues with confidence.


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