OBD Guide

P1A2B

Hybrid Battery 2 Voltage

P1A2B is an OBD-II diagnostic trouble code meaning: Hybrid Battery 2 Voltage. Common causes: second hybrid battery malfunction, problems with the battery charging circuit. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Reduced vehicle power
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Problems charging the hybrid battery
  • The car goes into emergency mode

Causes

  • Second hybrid battery malfunction
  • Problems with the battery charging circuit
  • Energy management system malfunction
  • Wiring harness damage
  • Problems with battery contacts

How to Fix

  1. Check the voltage of the second hybrid battery
  2. Inspect the charging circuit for damage
  3. Check the energy management system
  4. Replace the faulty battery if necessary
  5. Check and clean battery contacts

Related codes

FAQ

What does the P1A2B code mean?

P1A2B is an OBD-II diagnostic trouble code that indicates: Hybrid Battery 2 Voltage

What causes a P1A2B error code?

The most common causes of P1A2B include: Second hybrid battery malfunction; Problems with the battery charging circuit; Energy management system malfunction; Wiring harness damage.

How do I fix a P1A2B diagnostic trouble code?

To fix P1A2B: Check the voltage of the second hybrid battery. Inspect the charging circuit for damage. Check the energy management system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1A2B?

Yes, but get it checked soon

How much does it cost to fix P1A2B?

The estimated repair cost for P1A2B is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat