OBD Guide
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P1B58

Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage

P1B58 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage. Common causes: degradation of battery cells in circuit 39, poor contact in battery connectors. Estimated repair cost: $167–889.

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

Symptoms

  • Hybrid system power reduction
  • Increased fuel consumption
  • Check Engine Light Illuminated
  • Error message on the dashboard
  • The car goes into emergency mode

Causes

  • Degradation of battery cells in circuit 39
  • Poor contact in battery connectors
  • Faulty cell balancing system
  • Damage to monitoring circuit wiring
  • Problems with the battery management module

How to Fix

  1. Diagnosis of high-voltage battery condition
  2. Checking connections and contacts in the circuit 39
  3. Testing the cell balancing system
  4. Checking wiring integrity
  5. Repair only from an authorized dealer

Related codes

P1B57P1B59P0A7F

FAQ

What does the P1B58 code mean?

P1B58 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage

What causes a P1B58 error code?

The most common causes of P1B58 include: Degradation of battery cells in circuit 39; Poor contact in battery connectors; Faulty cell balancing system; Damage to monitoring circuit wiring.

How do I fix a P1B58 diagnostic trouble code?

To fix P1B58: Diagnosis of high-voltage battery condition. Checking connections and contacts in the circuit 39. Testing the cell balancing system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1B58?

Limited driving only, diagnose soon

How much does it cost to fix P1B58?

The estimated repair cost for P1B58 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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