OBD Guide
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P1B24

Hybrid/Electric Vehicle Battery 31 Circuit High Voltage

P1B24 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 31 Circuit High Voltage. Common causes: high voltage battery fault, problems with the charging system. Estimated repair cost: $167–889.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–889 (est.)

Symptoms

  • Check engine light comes on
  • Hybrid system power reduction
  • The car goes into emergency mode
  • Problems with charging a high-voltage battery
  • Unusual sounds from the engine compartment

Causes

  • High voltage battery fault
  • Problems with the charging system
  • Battery management module malfunction
  • Damage to high voltage cables
  • Software errors

How to Fix

  1. Check the condition of the high-voltage battery
  2. Diagnose the charging system
  3. Check the integrity of high-voltage cables
  4. Scan the battery management module for errors
  5. Update software if necessary
  6. Repair only from an authorized dealer

Related codes

P1B23P1B25P0AA6

FAQ

What does the P1B24 code mean?

P1B24 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 31 Circuit High Voltage

What causes a P1B24 error code?

The most common causes of P1B24 include: High voltage battery fault; Problems with the charging system; Battery management module malfunction; Damage to high voltage cables.

How do I fix a P1B24 diagnostic trouble code?

To fix P1B24: Check the condition of the high-voltage battery. Diagnose the charging system. Check the integrity of high-voltage cables. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1B24?

Do not drive — repair immediately

How much does it cost to fix P1B24?

The estimated repair cost for P1B24 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat