OBD Guide
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P1BF9

Hybrid/Electric Vehicle Battery 93 Circuit Performance

P1BF9 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 93 Circuit Performance. Common causes: battery cell failure 93, problems with wiring to the battery cell. Estimated repair cost: $167–889.

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

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • Reducing electric range
  • The car goes into emergency mode
  • Unusual battery level readings

Causes

  • Battery cell failure 93
  • Problems with wiring to the battery cell
  • Battery management system (BMS) malfunction
  • Corrosion of contacts in the battery circuit
  • Damage to the insulation of high-voltage wires

How to Fix

  1. Diagnosis of battery cell condition 93
  2. Checking the integrity of wiring and contacts
  3. Testing the Battery Management System
  4. Replacing a faulty battery cell if necessary
  5. Repair or replace damaged wiring

Related codes

P1BFAP1BF8P0AA6

FAQ

What does the P1BF9 code mean?

P1BF9 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 93 Circuit Performance

What causes a P1BF9 error code?

The most common causes of P1BF9 include: Battery cell failure 93; Problems with wiring to the battery cell; Battery management system (BMS) malfunction; Corrosion of contacts in the battery circuit.

How do I fix a P1BF9 diagnostic trouble code?

To fix P1BF9: Diagnosis of battery cell condition 93. Checking the integrity of wiring and contacts. Testing the Battery Management System. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1BF9?

Limited driving only, diagnose soon

How much does it cost to fix P1BF9?

The estimated repair cost for P1BF9 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat