OBD Guide
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C2308

EEPROM Malfunction

C2308 is an OBD-II diagnostic trouble code meaning: EEPROM Malfunction. Common causes: physical damage to the eeprom (for example due to overheating or corrosion), software failure in the ecu. Estimated repair cost: $167–444.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–444 (est.)

Symptoms

  • Unstable engine operation
  • Loss of adaptations (for example, idle speed)
  • Activating emergency mode
  • Check Engine light comes on
  • Problems starting the engine

Causes

  • Physical damage to the EEPROM (for example due to overheating or corrosion)
  • Software failure in the ECU
  • Control unit power supply problems
  • Incorrect ECU reprogramming
  • Factory defect of EEPROM chip

How to Fix

  1. Check the power supply and ground of the ECU
  2. Read the full error log to identify related faults
  3. Try to reflash the ECU (if possible)
  4. Replace EEPROM (requires special programming hardware)
  5. As a last resort, replace the engine control unit

Related codes

P0601P0602P0603

FAQ

What does the C2308 code mean?

C2308 is an OBD-II diagnostic trouble code that indicates: EEPROM Malfunction

What causes a C2308 error code?

The most common causes of C2308 include: Physical damage to the EEPROM (for example due to overheating or corrosion); Software failure in the ECU; Control unit power supply problems; Incorrect ECU reprogramming.

How do I fix a C2308 diagnostic trouble code?

To fix C2308: Check the power supply and ground of the ECU. Read the full error log to identify related faults. Try to reflash the ECU (if possible). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C2308?

Limited driving only, diagnose soon

How much does it cost to fix C2308?

The estimated repair cost for C2308 is $167–444. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat