OBD Guide

P1BAC

Hybrid/Electric Vehicle Battery 67 Circuit Low Voltage

P1BAC is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 67 Circuit Low Voltage. Common causes: worn or damaged high-voltage battery, damaged wiring harness or contacts. Estimated repair cost: $167–889.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$167–889 (est.)

Symptoms

  • Reduced performance of the hybrid system
  • Warning messages on the instrument panel
  • Reducing electric range
  • Problems with charging a high-voltage battery
  • The car goes into emergency mode

Causes

  • Worn or damaged high-voltage battery
  • Damaged wiring harness or contacts
  • Corrosion of connectors
  • Battery management module malfunction
  • Problems with the battery cooling system

How to Fix

  1. Check the condition of the high-voltage battery
  2. Inspect the wiring harness and contacts for damage
  3. Check connectors for corrosion
  4. Test the battery management module
  5. Check the battery cooling system

Related codes

FAQ

What does the P1BAC code mean?

P1BAC is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 67 Circuit Low Voltage

What causes a P1BAC error code?

The most common causes of P1BAC include: Worn or damaged high-voltage battery; Damaged wiring harness or contacts; Corrosion of connectors; Battery management module malfunction.

How do I fix a P1BAC diagnostic trouble code?

To fix P1BAC: Check the condition of the high-voltage battery. Inspect the wiring harness and contacts for damage. Check connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1BAC?

Yes, but get it checked soon

How much does it cost to fix P1BAC?

The estimated repair cost for P1BAC is $167–889. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat