OBD Guide
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P1BC1

Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage

P1BC1 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage. Common causes: hybrid battery malfunction, 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

  • Hybrid system power reduction
  • Warning messages on the dashboard
  • Battery charging problems
  • Reducing electric range

Causes

  • Hybrid battery malfunction
  • Problems with the charging system
  • Battery controller malfunction
  • Damage to the electrical circuit
  • Contact corrosion

How to Fix

  1. Check the condition of the hybrid battery
  2. Diagnose the charging system
  3. Check the integrity of the electrical circuit
  4. Clean contacts from corrosion
  5. Replace faulty components

Related codes

P1BC0P1BC2P0A80

FAQ

What does the P1BC1 code mean?

P1BC1 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage

What causes a P1BC1 error code?

The most common causes of P1BC1 include: Hybrid battery malfunction; Problems with the charging system; Battery controller malfunction; Damage to the electrical circuit.

How do I fix a P1BC1 diagnostic trouble code?

To fix P1BC1: Check the condition of the hybrid battery. Diagnose the charging system. Check the integrity of the electrical circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1BC1?

Do not drive — repair immediately

How much does it cost to fix P1BC1?

The estimated repair cost for P1BC1 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat