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P3020 TOYOTA

P3020 TOYOTA - Battery Block 10 Becomes Weak

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty HV battery assembly
  • Faulty Battery ECU
  • Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • P3020 Toyota Description

    If there is an abnormal internal resistance or electromotive voltage in the hybrid battery blocks, the hybrid battery Electronic Control Unit (ECU) determines that a malfunction has occurred. When the malfunction detection condition is satisfied, the battery ECU illuminates the MIL and sets a Diagnostic Trouble Code (DTC).
    OBDII Code P3020 Toyota - Battery Block 10 Becomes Weak - AutoCodes.com

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