OBD Guide
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P3013

Battery Block 3 Becomes Weak

P3013 is an OBD-II diagnostic trouble code meaning: Battery Block 3 Becomes Weak. Common causes: natural battery wear, imbalance between battery cells. Estimated repair cost: $167–889.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–889 (est.)

Symptoms

  • Reduced range of an electric vehicle
  • Increased charging time
  • Loss of power during acceleration
  • Frequent switching to internal combustion engines in hybrids
  • Warning messages on the dashboard

Causes

  • Natural battery wear
  • Imbalance between battery cells
  • Problems with the Battery Management System (BMS)
  • Damage to battery cells
  • Poor contact in battery circuit

How to Fix

  1. Diagnosing battery status using a scanner
  2. Checking the battery cell balance
  3. BMS calibration or flashing
  4. Replacing faulty battery cells
  5. Complete replacement of the battery pack if necessary

Related codes

P3011P3012P3014

FAQ

What does the P3013 code mean?

P3013 is an OBD-II diagnostic trouble code that indicates: Battery Block 3 Becomes Weak

What causes a P3013 error code?

The most common causes of P3013 include: Natural battery wear; Imbalance between battery cells; Problems with the Battery Management System (BMS); Damage to battery cells.

How do I fix a P3013 diagnostic trouble code?

To fix P3013: Diagnosing battery status using a scanner. Checking the battery cell balance. BMS calibration or flashing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3013?

Limited driving only, diagnose soon

How much does it cost to fix P3013?

The estimated repair cost for P3013 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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