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P3021 Lexus Code - Battery Block 11 Becomes Weak

- Code Popularity: 2,342 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P3021 Lexus?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty HV battery assembly
  • Faulty Battery ECU
⚠ Does your Lexus have Safety Recalls? → Check here

How to Fix the DTC P3021 Lexus?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P3021 Lexus code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P3021 Lexus 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 P3021 Lexus - Battery Block 11 Becomes Weak - AutoCodes.com
P3021 Lexus Code - Battery Block 11 Becomes Weak

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Code P3021 Lexus comments

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