OBD Guide
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B222F

Flash Write Performance

B222F is an OBD-II diagnostic trouble code meaning: Flash Write Performance. Common causes: damage to the ecu flash memory, problems with ecu power supply. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Problems starting the engine
  • Reduced engine efficiency

Causes

  • Damage to the ECU flash memory
  • Problems with ECU power supply
  • Software bugs
  • Unsuccessful attempt to flash the ECU

How to Fix

  1. Check ECU power supply
  2. Carry out ECU memory diagnostics
  3. Try to reflash the ECU using the original software
  4. If necessary, replace the ECU

Related codes

B222EB2230

FAQ

What does the B222F code mean?

B222F is an OBD-II diagnostic trouble code that indicates: Flash Write Performance

What causes a B222F error code?

The most common causes of B222F include: Damage to the ECU flash memory; Problems with ECU power supply; Software bugs; Unsuccessful attempt to flash the ECU.

How do I fix a B222F diagnostic trouble code?

To fix B222F: Check ECU power supply. Carry out ECU memory diagnostics. Try to reflash the ECU using the original software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B222F?

Limited driving only, diagnose soon

How much does it cost to fix B222F?

The estimated repair cost for B222F is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat