AutoCodesToyota – P0A80 Toyota

P0A80 Toyota Code - Replace Hybrid Battery Pack

Quick Answer

The HV battery uses nickel metal-hydride batteries and does not require external charging. Common causes include HV battery assembly, Battery smart unit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0A80 Toyota indicates Replace Hybrid Battery Pack.
Common causes
Common causes include HV battery assembly, Battery smart unit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 47,763
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jul 20, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0A80 Toyota Description

The HV battery uses nickel metal-hydride batteries and does not require external charging. The power management control ECU controls the SOC (state of charge) of the HV battery at a constant level during driving. The HV battery is composed of 28 modules, and each module consists of eight 1.2 V cells in series. The battery smart unit monitors battery block voltage at 14 locations. Each battery block is composed of 2 modules in a set.
The battery smart unit, which monitors the voltage of the battery blocks, determines that malfunction has occurred if a voltage difference between the battery blocks exceeds the standard. When the malfunction detection condition is satisfied, the power management control ECU (HV CPU) will illuminates the MIL and sets the P0A80 code.
OBDII Code P0A80 Toyota - Replace Hybrid Battery Pack - AutoCodes.com
P0A80 Toyota Code - Replace Hybrid Battery Pack

What are the Possible Causes of the DTC P0A80 Toyota?

  • HV battery assembly
  • Battery smart unit

How to Fix the DTC P0A80 Toyota?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0A80 Toyota code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0A80 Toyota code?

Need more information on how to fix the P0A80 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0A80 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0A80 Toyota Code

No Frequently Asked Questions about P0A80 Toyota Code found.

Discuss the causes and fixes for P0A80 Toyota OBDII Code

  • On dash board, "check VSC system", " check hybrid system ", maintainance required", appears. Engine starts only after disconnecting & replacing battery heads, but stops shortly before bigger engine starts, so motor cannot move. What do I do?

  • If you get the P0A80, besides all the symptoms you described, then the problem is the hybrid battery assembly. What model and year is your Toyota?

  • 2007 Toyota Camry Hybrid with 124K miles.
    I have the same problem.
    I add brake fluid because it was on minimum, that seems to fix the VSC part.
    I still getting the Battery Hybrid light and P0A80 code.

  • 2007 Camry

  • Have you look at the Factory Service bulletin listed above? the bulletin recommend Clean HV Battery Cooling Fan, Replace HV Battery Assembly, and Install HV Battery Cooling Fan Intake Filter

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play