AutoCodes – Generic – P0DE6

P0DE6 Code - Hybrid / EV Battery Cell Voltage Low

Quick Answer

The Battery Pack Control Module (BPCM) is contained within the High Voltage Battery Pack. Common causes include Faulty High Voltage Battery Pack, High Voltage Battery Pack harness is open or shorted, High Voltage Battery Pack circuit poor electrical connection. 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
P0DE6 indicates Hybrid / EV Battery Cell Voltage Low.
Common causes
Common causes include Faulty High Voltage Battery Pack, High Voltage Battery Pack harness is open or shorted, High Voltage Battery Pack 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 1,514
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 26, 2024
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Code P0DE6 Description

The Battery Pack Control Module (BPCM) is contained within the High Voltage Battery Pack. The BPCM provides battery management and system functionality in conjunction with Cell Supervision Circuits (CSCs) that monitor and balance the battery cells. The CSCs are also located within the High Voltage Battery Pack. The BPCM is the High Voltage Interlock (HVIL) power source and communicates with the vehicle via CAN-C bus. The main functions of the BPCM are high-voltage bus and pre-charge contactor control, battery pack current, voltage and temperature sensing, CAN communication, fault detection and reporting. The Diagnostic Trouble Code (DTC) will be set when the Battery Pack Control Module detects a single cell voltage that is less than a calibrated low threshold. EVS lamp illuminated, contactors are open and vehicle is disabled.
OBDII Code P0DE6 - Hybrid / EV Battery Cell Voltage Low - AutoCodes.com
P0DE6 Code - Hybrid / EV Battery Cell Voltage Low

What are the Possible Causes of the DTC P0DE6?

  • Faulty High Voltage Battery Pack
  • High Voltage Battery Pack harness is open or shorted
  • High Voltage Battery Pack circuit poor electrical connection

How to Fix the DTC P0DE6?

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 P0DE6 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.

Need more information about the P0DE6 code?

Need more information on how to fix the P0DE6 code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about P0DE6 Code

No Frequently Asked Questions about P0DE6 Code found.

Discuss the causes and fixes for P0DE6 OBDII Code

  • I have a Honda fit GP6 hybrid of 2014. It shows that,it is not charging

    • The P0DE6 - Hybrid/EV Battery Cell Voltage Low code indicates that one or more cells in the hybrid battery pack are reporting a lower voltage than expected. This can result in the hybrid system not charging properly and reduced overall performance.

      Possible Causes:

      1. Battery Cell Degradation: Over time, individual cells can wear out and lose capacity, leading to imbalances in the battery pack.
      2. Faulty Battery Management System (BMS): The BMS monitors and controls battery performance; if it malfunctions, it may report incorrect voltage readings.
      3. Corroded or Loose Connections: Poor electrical connections at the battery terminals or within the battery pack can result in low voltage readings.
      4. Hybrid Battery Cooling Issues: A blocked or failing cooling fan can cause the battery to overheat, which impacts charging efficiency and voltage levels.
      5. Software Issues: The hybrid control system may require an update or recalibration after battery-related faults.

      Troubleshooting Steps:

      1. Check for Additional Trouble Codes:

        • Use an OBDII scanner capable of reading hybrid system codes to check for related faults (e.g., battery temperature, BMS faults).
      2. Inspect Hybrid Battery Connections:

        • Ensure all battery pack connections are clean and secure.
        • Look for signs of corrosion or damage on the terminals.
      3. Test Individual Battery Cells:

        • A professional hybrid battery diagnostic tool can measure the voltage of each cell/module. Significant imbalance may indicate a failing cell that needs replacement.
      4. Check Battery Cooling System:

        • Inspect and clean the battery cooling fan and ducts to ensure proper airflow.
        • A clogged or malfunctioning cooling system can contribute to low voltage conditions.
      5. Perform a Battery Recalibration:

        • Some hybrid systems require a recalibration process using specialized tools to rebalance the battery and restore charging performance.
      6. Consider Battery Reconditioning or Replacement:

        • If the battery pack is severely degraded, a professional hybrid technician can attempt reconditioning to restore some capacity or replace faulty cells/modules.
        • In severe cases, replacing the battery pack may be necessary.

      Next Steps:

      If you're comfortable with DIY troubleshooting, start by checking battery connections and cooling components. However, for deeper diagnostics, it’s recommended to visit a hybrid specialist or Honda dealership to evaluate the battery pack's health and potential repair options.

      Let us know if you need more details or guidance on any of these steps!

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