Engine-Codes - Generic - U0300

U0300 - Internal Control Module Software Incompatibility

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U0300 Possible Causes

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

How is the U0300 code repair?

Start by checking 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.

Tech Notes

Verify the Powertrain Control Module (PCM) is at the latest calibration level.

What is the cost to diagnose the U0300 code

Labor: 1.0

The cost to diagnose the U0300 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

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

U0300 Meaning

Some devices must be configured with specific software, serial numbers, vehicle options, or other information. If a device was not properly configured after installation that the device may set the appropriate communication Diagnostic Trouble Code (DTC)s. No external circuit diagnosis is involved. The DTC sets when the Powertrain Control Module (PCM) is not configured properly

More Information

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Information for specific makes

  • U0300 CHRYSLER Internal Control Module Software Incompatibility
  • U0300 DODGE Internal Control Module Software Incompatibility
  • U0300 FORD Internal Control Module Software Incompatibility
  • U0300 INFINITI Internal Control Module Software Incompatibility
  • U0300 JEEP Internal Control Module Software Incompatibility
  • U0300 LINCOLN Internal Control Module Software Incompatibility
  • U0300 MERCURY Internal Control Module Software Incompatibility
  • U0300 NISSAN Internal Control Module Software Incompatibility
  • U0300 RAM Internal Control Module Software Incompatibility

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