Engine-CodesToyota – P0A79 Toyota

P0A79 Toyota Code - Drive Motor 'B' Inverter Performance

Quick Answer

The P0A79 code for Toyota vehicles specifically relates to the Drive Motor 'B' Inverter Performance. Common causes include Faulty inverter circuitry, Overheating of the inverter system, Loose or damaged connections. 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
P0A79 Toyota indicates Drive Motor 'B' Inverter Performance.
Common causes
Common causes include Faulty inverter circuitry, Overheating of the inverter system, Loose or damaged connections.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code P0A79 Toyota Description

The P0A79 code for Toyota vehicles specifically relates to the Drive Motor 'B' Inverter Performance. This code indicates a potential issue with the inverter system responsible for controlling the drive motor 'B' in hybrid vehicles. The drive motor in a hybrid vehicle works in conjunction with the gasoline engine to provide power and improve fuel efficiency. The inverter plays a crucial role in converting the DC power from the hybrid battery into AC power for the drive motor.

OBDII Code P0A79 Toyota - Drive Motor 'B' Inverter Performance
P0A79 Toyota Code - Drive Motor 'B' Inverter Performance

Common Causes of P0A79 Toyota

  1. Faulty inverter circuitry
  2. Overheating of the inverter system
  3. Loose or damaged connections
  4. Inverter cooling system issues
  5. Electrical issues within the hybrid system

Symptoms of P0A79 Toyota

  1. Decreased power output
  2. Reduced fuel efficiency
  3. Inability to operate in electric mode
  4. Illumination of the check engine light
  5. Unusual noises coming from the drive motor or inverter system

How to Fix P0A79 Toyota

  1. Diagnose the specific cause of the inverter performance issue using a diagnostic scanner.
  2. Inspect the inverter circuitry, connections, and cooling system for any faults or damage.
  3. Repair or replace any faulty components such as the inverter, wiring, or cooling system parts.
  4. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
  5. Perform a recalibration of the hybrid system to ensure proper functionality.

Cost to Fix P0A79 Toyota

The typical repair costs for addressing a P0A79 code on a Toyota vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, repairing the drive motor 'B' inverter performance issue can range from $500 to $1500, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local repair shops for a more accurate estimate of the repair costs.

Need more information about the P0A79 Toyota code?

Need more information on how to fix the P0A79 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0A79 Toyota code diagnosed by a professional: Find a repair shop in your area

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 P0A79 Toyota Code

No Frequently Asked Questions about P0A79 Toyota Code found.

Discuss the causes and fixes for P0A79 Toyota OBDII Code

Code P0A79 Toyota comments

No comments found for this page.