U0300

U0300-INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Ignition on and battery voltage greater than 10 volts.

- Set Condition:
The Powertrain Control Module (PCM) software is incorrect.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
PCM PROGRAMMED WITH INCORRECT SOFTWARE
1. Ignition on, engine not running.
2. Program the PCM. PCM/ECM Programming
3. Start the engine.
4. Allow the engine to reach normal operating temperature.
5. With a scan tool, select read the active DTCs.

Does the scan tool display U0300-INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY?

Yes

- Replace and program the Powertrain Control Module (PCM). Powertrain Control Module - Removal.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.

No

- The Powertrain Control Module (PCM) has been successfully programmed. Test is complete.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.