AutoCodes – Scion – B2790 Scion

B2790 Scion Code - ID Code Box EEPROM Malfunction

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when the ID Code Box (Immobiliser Code ECU) detects an internal malfunction. Common causes include Faulty ID Code Box (Immobiliser Code ECU), ID Code Box harness is open or shorted, ID Code Box 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: B2790 Scion indicates ID Code Box EEPROM Malfunction.
Common causes: Common causes include Faulty ID Code Box (Immobiliser Code ECU), ID Code Box harness is open or shorted, ID Code Box 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.

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Code Popularity 675

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Feb 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2790 Scion Description

This Diagnostic Trouble Code (DTC) is stored when the ID Code Box (Immobiliser Code ECU) detects an internal malfunction.

OBDII Code B2790 Scion - ID Code Box EEPROM Malfunction - AutoCodes.com — B2790 Scion Code - ID Code Box EEPROM Malfunction

What does this mean?

What are the Possible Causes of the DTC B2790 Scion?

Faulty ID Code Box (Immobiliser Code ECU)
ID Code Box harness is open or shorted
ID Code Box circuit poor electrical connection

How to Fix the DTC B2790 Scion?

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 B2790 Scion 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.

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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 B2790 Scion Code

1. What are the common symptoms of OBDII code B2790 Scion (ID Code Box EEPROM Malfunction)?

- Common symptoms include difficulty starting the vehicle, intermittent starting issues, and the engine stalling unexpectedly.

2. What causes the OBDII code B2790 in a Scion?

- The B2790 code is typically caused by a malfunction in the ID code box EEPROM, which stores key information for the vehicle's immobilizer system.

3. How serious is the ID Code Box EEPROM Malfunction in a Scion?

- The ID Code Box EEPROM Malfunction can be serious as it can prevent the vehicle from starting or cause it to stall unexpectedly, leading to potential safety concerns.

4. Can I still drive my Scion with the B2790 code present?

- It is not recommended to drive the vehicle with the B2790 code present, as it may result in starting issues or engine stalling while driving.

5. How can I diagnose the ID Code Box EEPROM Malfunction in my Scion?

- Diagnosis of the B2790 code typically requires a professional OBDII scanner to retrieve the specific trouble code and further testing to verify the issue with the ID code box.

6. Is it possible to repair the ID Code Box EEPROM Malfunction myself?

- Repairing the ID Code Box EEPROM Malfunction usually requires specialized knowledge and tools, so it is recommended to have a professional technician address the issue.

7. How much does it cost to repair the B2790 code in a Scion?

- The cost of repairing the B2790 code can vary depending on the extent of the issue and labor rates, but it may involve replacing the ID code box or reprogramming it, which can be costly.

8. Can resetting the OBDII codes clear the B2790 code in a Scion?

- Resetting the OBDII codes may temporarily clear the B2790 code, but if the underlying issue with the ID code box EEPROM is not addressed, the code is likely to return.

9. Are there any preventive measures to avoid the ID Code Box EEPROM Malfunction in a Scion?

- Regular maintenance of the vehicle's immobilizer system and key components can help prevent issues like the ID Code Box EEPROM Malfunction from occurring.

10. How long does it take to repair the B2790 code in a Scion?

- The repair time for the B2790 code can vary depending on the exact cause of the issue, but it may take several hours to diagnose and repair the ID Code Box EEPROM Malfunction.