OBD Guide
ENFRDEESPT

P1B89

Hybrid/Electric Vehicle Battery 55 Circuit High Voltage

P1B89 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 55 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
  • The car goes into emergency mode
  • Hybrid system power reduction
  • Problems with charging a high-voltage battery
  • Malfunction warning on the dashboard

Causes

  • High voltage battery fault
  • Problems with the charging system
  • Damage to high voltage wiring
  • HPCM control unit malfunction
  • Short circuit in high voltage circuit

How to Fix

  1. Carry out diagnostics of the high-voltage system
  2. Check the condition of the high-voltage battery
  3. Inspect the integrity of high-voltage wiring
  4. Check the operation of the charging system
  5. Diagnose the HPCM control unit

Related codes

P1B88P1B8AP0AA6

FAQ

What does the P1B89 code mean?

P1B89 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 55 Circuit High Voltage

What causes a P1B89 error code?

The most common causes of P1B89 include: High voltage battery fault; Problems with the charging system; Damage to high voltage wiring; HPCM control unit malfunction.

How do I fix a P1B89 diagnostic trouble code?

To fix P1B89: Carry out diagnostics of the high-voltage system. Check the condition of the high-voltage battery. Inspect the integrity of high-voltage wiring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1B89?

Do not drive — repair immediately

How much does it cost to fix P1B89?

The estimated repair cost for P1B89 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat