Service Procedure

SERVICE PROCEDURE:

GDS AUTO MODE ECM UPDATE PROCEDURE

1. From the GDS home page, select ECU Upgrade. If necessary, select the VIN.

2. Select Engine as the system and then select OK.

3. Select Auto Mode and then select NEXT.

4. From the System tab, select Engine and then select OK. The GDS will read the ROM ID. Confirm the ROM is applicable as shown in "ROM ID Information".





5. Select update event as listed on the GDS Event list. Select Upgrade.





6. If the screen indicates "Voltage is OK" (voltage > 12volts), select OK. If not, select CANCEL and charge the vehicle battery by running the engine 10 minutes.

7. Updating will occur until 100% is reached on the bar graph. At the prompt, turn the ignition key OFF for 10 seconds, then turn it ON and select OK.

8. The GDS will confirm that ECM reprogramming is successfully finished. Select OK.

9. If the ECM update was not successful, go to GDS MANUAL MODE ECM UPDATE PROCEDURE.

10. Turn OFF ignition 10 seconds to reset the ECM.

11. Turn ON ignition 10 seconds (engine not running) to perform ETC initialization.

12. Turn OFF ignition.

13. Check for DTC in all systems and Erase All DTC that stored due to loss of CAN communication during the ECM Update.

14. Start the engine to confirm proper operation.

GDS MANUAL MODE ECM UPDATE PROCEDURE

*NOTE
^ GDS Manual Mode is intended for recovery of an ECM Update should it begin but then later fail in process in the Auto Mode.

^ The ECM connectors must be disconnected for 15 minutes to reset its contents, then perform this manual Mode Update.

^ Do not force Manual Mode if you get an error in Auto Mode that the vehicle's current ROM ID did not apply.

^ It is critical to identify the correct ECM Part Number in the PASSWORD table or the ECM may permanently damage. It is recommended to remove ECM and read the part number from the label to confirm.

1. From the GDS home page, select ECU Upgrade. If necessary, select the VIN.

2. Select Engine as the system and then select OK.

3. Select Manual Mode and then select Next.

4. From the System tab, select Engine and then select OK.

5. Select update event as per the GDS Event List, then select Upgrade.

6. Be certain to enter the exact appropriate password from the table below and select OK. See the important NOTE above.

7. The remaining steps are the same as Steps 6-14 of the Auto Procedure.