AutoCodes – Toyota – B2782 Toyota

B2782 Toyota Code - Power Source Control ECU Malfunction

Quick Answer

The Certification ECU (Smart Key ECU Assembly) has a power source mode switching function. Common causes include Faulty Steering Lock ECU (Steering Lock Actuator Assembly), Steering Lock ECU harness is open or shorted, Steering Lock ECU circuit poor electrical connection. 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: B2782 Toyota indicates Power Source Control ECU Malfunction.
Common causes: Common causes include Faulty Steering Lock ECU (Steering Lock Actuator Assembly), Steering Lock ECU harness is open or shorted, Steering Lock ECU circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,140

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 16, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2782 Toyota Description

The Certification ECU (Smart Key ECU Assembly) has a power source mode switching function. This Diagnostic Trouble Code (DTC) is stored when the IGE input (the steering lock motor activation permission signal) sent directly from the Certification ECU (Smart Key ECU Assembly) to the Steering Lock ECU (Steering Lock Actuator Assembly) is determined to be abnormal.

OBDII Code B2782 Toyota - Power Source Control ECU Malfunction - AutoCodes.com — B2782 Toyota Code - Power Source Control ECU Malfunction

What does this mean?

What are the Possible Causes of the DTC B2782 Toyota?

Faulty Steering Lock ECU (Steering Lock Actuator Assembly)
Steering Lock ECU harness is open or shorted
Steering Lock ECU circuit poor electrical connection
Faulty Certification ECU (Smart Key ECU Assembly)

How to Fix the DTC B2782 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2782 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 B2782 Toyota code?

Need more information on how to fix the B2782 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2782 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

B2782 2013 Toyota RAV4 — Power Source Control ECU Malfunction
B2782 2014 Toyota RAV4 — Power Source Control ECU Malfunction
B2782 2015 Toyota RAV4 — Power Source Control ECU Malfunction
B2782 2016 Toyota RAV4 — Power Source Control ECU Malfunction
B2782 2017 Toyota RAV4 — Power Source Control ECU Malfunction
B2782 2018 Toyota RAV4 — Power Source Control ECU Malfunction

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 B2782 Toyota Code

1. What are the common symptoms of OBDII code B2782 in a Toyota related to Power Source Control ECU Malfunction?

- Common symptoms include issues with starting the vehicle, dim or flickering lights, and electrical system malfunctions.

2. What can cause the Power Source Control ECU Malfunction code B2782 in a Toyota?

- Possible causes can include a faulty power source control unit, wiring issues, or a malfunctioning battery.

3. How can I diagnose the B2782 code in my Toyota?

- Diagnosing the code involves using an OBDII scanner to read the code, checking the power source control unit and related wiring, and testing the battery's voltage.

4. Can I drive my Toyota with the B2782 code present?

- It is not recommended to drive your Toyota with the B2782 code present, as it can lead to further electrical issues and potential safety hazards.

5. How can I repair the Power Source Control ECU Malfunction code B2782 in my Toyota?

- Repairing the code typically involves replacing the faulty power source control unit, repairing any damaged wiring, and ensuring the battery is functioning properly.

6. Is it necessary to reset the OBDII system after repairing the B2782 code in a Toyota?

- Yes, it is recommended to reset the OBDII system after repairing the code to clear the error code and ensure the issue has been successfully resolved.

7. Are there any preventative maintenance tips to avoid the B2782 code in a Toyota?

- Regularly inspecting the vehicle's electrical system, ensuring the battery is in good condition, and addressing any warning signs promptly can help prevent the B2782 code.

8. Can a DIY enthusiast fix the B2782 code in a Toyota, or is professional help required?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the B2782 code. However, professional help is recommended for complex electrical issues.

9. How long does it typically take to repair the B2782 code in a Toyota?

- The repair time can vary depending on the exact cause of the code and the extent of the repairs needed, but it can range from a few hours to a day.

10. Will the B2782 code cause my Toyota to fail an emissions test?

- Yes, the B2782 code can cause your Toyota to fail an emissions test, as it indicates a malfunction in the power source control ECU, which is related to the vehicle's emissions system.