AutoCodes – Generic – C2308

C2308 Code - EEPROM Malfunction

Quick Answer

The Transmission Control ECU Assembly monitors its internal operation and it will set this Diagnostic Trouble Code (DTC) when it detects an Electronically Erasable Programmable Read Only Memory (EEPROM) malfunction. Common causes include Faulty Transmission Control ECU Assembly, Transmission Control ECU harness is open or shorted, Transmission Control 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: C2308 indicates EEPROM Malfunction.
Common causes: Common causes include Faulty Transmission Control ECU Assembly, Transmission Control ECU harness is open or shorted, Transmission Control 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.

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Code Popularity 1,511

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2308 Description

OBDII Code C2308 - EEPROM Malfunction - AutoCodes.com — C2308 Code - EEPROM Malfunction

What does this mean?

What are the Possible Causes of the DTC C2308?

Faulty Transmission Control ECU Assembly
Transmission Control ECU harness is open or shorted
Transmission Control ECU circuit poor electrical connection

How to Fix the DTC C2308?

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 C2308 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 C2308 code?

Need more information on how to fix the C2308 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C2308 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C2308 Hyundai — Front Left Inlet Valve Malfunction
C2308 KIA — Front Left Inlet Valve Malfunction
C2308 Lexus — EEPROM Malfunction
C2308 Toyota — EEPROM 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 C2308 Code

1. What are the common symptoms of OBDII code C2308 (EEPROM Malfunction)?

- Common symptoms include issues with the vehicle's electronic control module, such as difficulties starting the engine, rough idling, or poor performance.

2. What can cause the OBDII code C2308 (EEPROM Malfunction) to trigger?

- The code can be triggered by a malfunction in the EEPROM, which stores essential data for the electronic control module, or due to wiring issues or a faulty control module.

3. How serious is the OBDII code C2308 (EEPROM Malfunction)?

- While the code itself may not cause immediate harm to the vehicle, it can lead to performance issues and potential long-term damage if left unresolved.

4. Can I still drive my vehicle with the OBDII code C2308 (EEPROM Malfunction)?

- It is not recommended to drive the vehicle with this code present, as it may result in poor engine performance and potential safety risks.

5. How can I diagnose the cause of OBDII code C2308 (EEPROM Malfunction)?

- Diagnosing the issue typically requires using a diagnostic scanner to retrieve the code, followed by testing the electronic control module, wiring, and EEPROM for faults.

6. What are some repair options for OBDII code C2308 (EEPROM Malfunction)?

- Repair options may include reprogramming or replacing the EEPROM, repairing damaged wiring, or replacing the electronic control module if necessary.

7. Can resetting the OBDII code C2308 (EEPROM Malfunction) resolve the issue?

- Resetting the code may temporarily clear the error, but it is essential to address the underlying cause to prevent the code from reoccurring.

8. How much does it typically cost to fix OBDII code C2308 (EEPROM Malfunction)?

- The cost of fixing this code can vary depending on the extent of the issue and the specific repairs needed, but it may range from a few hundred to a few thousand dollars.

9. Are there any preventative measures to avoid OBDII code C2308 (EEPROM Malfunction)?

- Regular maintenance and inspections of the vehicle's electronic components can help prevent issues that may lead to the EEPROM malfunction code.

10. Can a DIY enthusiast fix OBDII code C2308 (EEPROM Malfunction) at home?

- While some basic troubleshooting steps can be taken at home, repairing the underlying cause of the code may require specialized tools and expertise best handled by a professional mechanic.