OBD Guide

P1B95

Hybrid/Electric Vehicle Battery 59 Circuit High Voltage

P1B95 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 59 Circuit High Voltage. Common causes: high voltage battery fault, problems with the charging system (charger). 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
  • Hybrid system malfunction warning appears
  • Reduced power or hybrid system failure
  • The car goes into emergency mode
  • Possible problems with charging the high-voltage battery

Causes

  • High voltage battery fault
  • Problems with the charging system (charger)
  • Malfunction of the hybrid control module (HCU)
  • Damage to high voltage cables or connectors
  • Errors in the hybrid system software

How to Fix

  1. Diagnostics of a high-voltage system using a scanner
  2. Checking the condition of the high-voltage battery
  3. Charging system testing
  4. Checking the integrity of high-voltage cables and connectors
  5. Hybrid System Software Update
  6. Repair only from an authorized dealer

Related codes

FAQ

What does the P1B95 code mean?

P1B95 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 59 Circuit High Voltage

What causes a P1B95 error code?

The most common causes of P1B95 include: High voltage battery fault; Problems with the charging system (charger); Malfunction of the hybrid control module (HCU); Damage to high voltage cables or connectors.

How do I fix a P1B95 diagnostic trouble code?

To fix P1B95: Diagnostics of a high-voltage system using a scanner. Checking the condition of the high-voltage battery. Charging system testing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1B95?

Do not drive — repair immediately

How much does it cost to fix P1B95?

The estimated repair cost for P1B95 is $167–2778. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat