AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Ford - U0300 2009 FORD MUSTANG

U0300 2009 FORD MUSTANG Code - Internal Control Module Software Incompatibility

- Code Popularity: 6,945 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Updated Apr 07, 2020
Share on Facebook   Share on Twitter   Share on Linkedin

|U0300 2009 FORD MUSTANG code possible causes

  • Powertrain Control Module (PCM) Programmed With Incorrect Software
  • Faulty Powertrain Control Module (PCM)

|How do I fix code U0300 2009 FORD MUSTANG code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|U0300 2009 FORD MUSTANG code tech notes

Verify the Powertrain Control Module (PCM) is at the latest calibration level. Reprogram ("Flashing") the PCM if necessary.

|Cost of diagnosing U0300 2009 FORD MUSTANG code

Labor: 1.0

The cost of diagnosing the U0300 2009 FORD MUSTANG code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are U0300 2009 FORD MUSTANG code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|U0300 2009 FORD MUSTANG code description

The U0300 code indicates there are incompatible software levels within the Powertrain Control Module (PCM) that control the Electronic Throttle Control (ETC) system. The ETC system uses multiple microprocessors within the PCM, each having its own software level and function. The microprocessors must have the correct level of software in order to communicate and function together.

OBDII Code U0300 2009 Ford Mustang - Internal Control Module Software Incompatibility  - AutoCodes.com
Internal Control Module Software Incompatibility

|Need more information with the U0300 2009 FORD MUSTANG code?

Need more information on how to fix the U0300 2009 FORD MUSTANG code?
Get Access to Factory Service Manuals

|Need help with a U0300 2009 FORD MUSTANG code?

Get the U0300 2009 Ford Mustang code diagnosed by a professional: Find a repair shop in your area

|U0300 2009 FORD MUSTANG code comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U0300 2009 Ford Mustang code? Have you replaced any parts?
Any information is appreciated. Thanks