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U0300 2009 Ford Mustang Code - Internal Control Module Software Incompatibility

- Code Popularity: 7,895 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U0300 2009 Ford Mustang?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Powertrain Control Module (PCM) Programmed With Incorrect Software
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC U0300 2009 Ford Mustang?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

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

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0300 2009 Ford Mustang code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U0300 2009 Ford Mustang 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
U0300 2009 Ford Mustang Code - Internal Control Module Software Incompatibility

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Code U0300 2009 Ford Mustang comments

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