Manual Update Procedure
NOTE^ In the event menu option "01. XG300/350 REAR 02 SENSOR [AUTO]" fails to download the new ECM program, option "02. XG300/350 REAR 02 SENSOR [ERROR]" must be used.
^ Confirm all connections are established as shown in the "AUTOMATIC UPDATE PROCEDURE" before continuing.
1. Turn the ignition to the ON position.
2. Turn the Hi-Scan Pro ON and press ENTER.
3. Select menu option "24. XG300/350 REAR 02 SENSOR" and press ENTER.
4. Select menu option "02. XG300/350 REAR 02 SENSOR [ERROR]" and press ENTER.
5. Choose the ECM type which is correct for your vehicle by using the ECM Specification Table. Then press ENTER.
6. Enter the correct password for manual ECM reprogramming by referring to the table and press ENTER.
NOTE:
^ Be sure to input the correct password. If an incorrect password is used, the correct ECM software will not be downloaded.
^ The rest of the procedure is exactly the same as the automatic update procedure.
7. The Hi-Scan Pro will reprogram the ECM. Wait until the reprogramming is completed.
WARNING:
Do not interrupt the reprogramming at any time. The ECM will be rendered inoperative if the program does not download completely.
8. Hi-Scan Pro establishes communication.
9. When the REPROGRAMMING COMPLETED message is displayed, the ECM reprogramming process is complete.
NOTE
^ The new ECM ID is displayed when the new ECM software download process is complete.
^ Check the new ECM ID displayed on the Hi-Scan Pro screen to verify that the correct ECM software has been downloaded. Refer to the "ECM SPECIFICATION TABLE" for the ECM ID listing.
10. Turn the Hi-Scan Pro off and turn the ignition key to the off position for 10 seconds. Then start the engine to check for proper operation.