Engine-CodesGeneric – P0B86

P0B86 Code - Hybrid/Electric Vehicle Battery 16 Circuit

Quick Answer

The diagnostic trouble code P0B86 refers to an issue with the Hybrid/Electric Vehicle Battery 16 Circuit. Common causes include Faulty battery module in the 16th circuit, Corrosion or loose connections in the circuit, Overcharging or undercharging of the battery. 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
P0B86 indicates Hybrid/Electric Vehicle Battery 16 Circuit.
Common causes
Common causes include Faulty battery module in the 16th circuit, Corrosion or loose connections in the circuit, Overcharging or undercharging of the battery.
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
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Code P0B86 Description

The diagnostic trouble code P0B86 refers to an issue with the Hybrid/Electric Vehicle Battery 16 Circuit. In hybrid and electric vehicles, the battery plays a crucial role in providing power to the electric motor and other components. The battery 16 circuit is a specific part of the battery system that is responsible for managing the flow of electricity within the battery pack.

OBDII Code P0B86 - Hybrid/Electric Vehicle Battery 16 Circuit
P0B86 Code - Hybrid/Electric Vehicle Battery 16 Circuit

Common Causes of P0B86

  1. Faulty battery module in the 16th circuit
  2. Corrosion or loose connections in the circuit
  3. Overcharging or undercharging of the battery
  4. Water or moisture damage to the battery pack
  5. Wiring harness issues

Symptoms of P0B86

  1. Reduced electric driving range
  2. Poor fuel efficiency
  3. Engine misfires or hesitation
  4. Illuminated check engine light
  5. Vehicle may not start in electric mode

How to Fix P0B86

  1. Begin by conducting a thorough inspection of the battery pack and the 16th module to identify any visible damage or corrosion.
  2. Test the voltage and resistance of the 16th circuit to determine if there are any electrical issues.
  3. Replace any faulty battery modules or damaged wiring in the 16th circuit.
  4. Clear the diagnostic trouble codes from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.
  5. Perform a battery system reset to recalibrate the battery management system and ensure proper functionality.

Cost to Fix P0B86

The cost of repairing the Hybrid/Electric Vehicle Battery 16 Circuit issue can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for a battery module replacement can range from $200 to $500, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue may range from $300 to $700. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.

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Code P0B86 Information for Specific Makes

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.

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