OBD Guide
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P1BF2

Hybrid/Electric Vehicle Battery 90 Circuit High Voltage

P1BF2 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 90 Circuit High Voltage. Common causes: high voltage battery fault, problems with the charging system. Estimated repair cost: $167–2778.

Severity
🚨 Critical
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–2778 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced vehicle power
  • The car goes into emergency mode
  • Problems charging the hybrid battery
  • Warning messages on the dashboard

Causes

  • High voltage battery fault
  • Problems with the charging system
  • Battery controller malfunction
  • Damage to high voltage wiring
  • Software errors in the control system

How to Fix

  1. High voltage system diagnostics
  2. Checking the condition of the battery and its elements
  3. Charging system testing
  4. Checking the integrity of high-voltage wiring
  5. Control system software update
  6. Repair only from an authorized dealer

Related codes

P1BF0P1BF1P1BF3

FAQ

What does the P1BF2 code mean?

P1BF2 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 90 Circuit High Voltage

What causes a P1BF2 error code?

The most common causes of P1BF2 include: High voltage battery fault; Problems with the charging system; Battery controller malfunction; Damage to high voltage wiring.

How do I fix a P1BF2 diagnostic trouble code?

To fix P1BF2: High voltage system diagnostics. Checking the condition of the battery and its elements. Charging system testing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1BF2?

Do not drive — repair immediately

How much does it cost to fix P1BF2?

The estimated repair cost for P1BF2 is $167–2778. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat