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P0A84 OBD2: Hybrid Battery Pack Cooling Fan 1 Control Circuit Low

P0A84 OBD2: Hybrid Battery Pack Cooling Fan 1 Control Circuit Low

What Does the P0A84 Code Mean?

The P0A84 code is an OBD-II trouble code that indicates a malfunction in the Hybrid Battery Pack Cooling Fan 1 control circuit. This code is set when the Battery Control Module detects that the cooling fan responsible for regulating the temperature of the hybrid battery is not functioning correctly.

What Causes the P0A84 Code?

  • Battery Control Module Failure
  • Clogged battery airflow passageway
  • High voltage battery cooling fan issues

What Are the Symptoms of the P0A84 Code?

Drivers may notice the following symptoms when the P0A84 code is triggered:

  • High voltage system may not operate

How Serious Is the P0A84 Code?

The P0A84 code is classified as urgent, indicating that immediate attention is necessary. Ignoring this code can lead to severe damage to the vehicle’s hybrid system or pose risks to the safety of the driver and passengers.

How to Diagnose the P0A84 Code

Diagnosing the P0A84 code involves a complete diagnostic routine, which includes:

  • Using an OBD-II scanner to confirm the presence of the code.
  • Inspecting the battery cooling fan and airflow passageway for blockages or damage.
  • Testing the Battery Control Module for proper operation.

Common Repairs for the P0A84 Code

  • Replacing a faulty Battery Control Module
  • Clearing obstructions from the battery airflow passageway
  • Repairing or replacing the high voltage battery cooling fan

How Much Does It Cost to Fix the P0A84 Code?

The cost to repair the P0A84 code can vary significantly based on the underlying issue. Typical repair costs range from $100 to $1,500, depending on whether you need to replace the Battery Control Module or repair other components.

Can I Fix the P0A84 Code Myself?

While some basic troubleshooting steps can be performed by DIY enthusiasts, it is crucial to understand the complexities involved in hybrid systems. Unless you have advanced automotive knowledge and the necessary tools, it is recommended to seek professional assistance to ensure proper diagnosis and repair.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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