NOTE: The importance of proper battery voltage cannot be emphasized enough. Failure to maintain proper battery voltage
throughout the procedure may result in an inoperable vehicle, where the only solution would be the physical replacement of
control modules at owner expense. Voltage below 12.5v as a minimum can cause permanent failure. Evaluate the age and
condition of your BMW’s battery before proceeding.
6. Open the door nearest to the OBD-II port, and insert the Power Programmer into the OBD-II diagnostic port making sure not to
depress the button while doing so. Note that the port is keyed and the power programmer will positively snap or click into the port
when fully seated. At this time, the green LED should now be illuminated solid green. If the green LED or red LED is flashing or puls-
ing, remove the Power Programmer, count to 10, and reinsert it into the port without depressing the button. The button must not be
depressed during insertion into the port. The Power Programmer will be powered via the OBD-II port, even when the vehicle ignition
(and ECU) is switched off.
7. If necessary, position the mirror so you can see both the green and red LEDs from outside the vehicle. Test close the doors and
ensure that you can see the LEDs through a window.
8. Turn the ignition switch to the ON position but do not start (check engine lamp must light up).
9. Assure that all electrical loads are off (radio, climate control, courtesy lamps, etc.) and that those capable of turning themselves
on (cell phone) are temporarily disabled. The climate control in many vehicles can be turned off by lowering the fan speed past its
lowest setting.
10. Exit the vehicle at this time and close all doors. NOTE: No one is to remain inside the vehicle during use of the Power Programmer.
Wait at least 30 seconds, then press the button. Within in 3 seconds, the green LED will begin to pulsate, indicating the transfer of
programming data between the vehicle’s ECU and the Power Programmer’s internal electronics package.
11. Sit back, relax, watch, but DO NOT TOUCH the Power Programmer or anything inside the vehicle under any circumstances. DO NOT
OPEN THE DOORS as this can disturb the programming.
12. In approximately 1 to 6 minutes, the red LED will turn on while the green LED continues to pulsate indicating that the Power
Programmer is entering the Reprogramming phase.
13. In approximately another 1 to 3 minutes, the red LED will turn off, while the green LED will continue to pulsate; this is the final
Check phase of reprogramming your vehicle.
14. Finally in about 1 to 3 minutes, the green LED will stop pulsating and illuminate solid; this is your indication that the upgrade has
been successfully completed and verified. (If you see a solid green AND a solid red LED, this indicates that a Restore to Stock
program was successfully completed and verified.
15. You may now open the vehicle door and turn the ignition completely off. Wait at least 30 seconds, but DO NOT remove or discon-
nect your Power Programmer at this time.
16. If you previously removed fuses, you should reinstall them before proceeding.
17. With the Power Programmer still connected, turn the ignition switch to the ON position but DO NOT start; the Check Engine lamp
must light up.
18. Wait at least 30 seconds, then press the button on your Power Programmer. The green LED will begin to pulsate indicating the
transfer of some final information to the vehicle’s ECU. This phase lasts about 10-15 seconds before the green LED illuminates solid
green. (Again, if you are performing the Restore function, you will see a solid green AND a solid red LED as in step 14 above.)
19. You may now turn the ignition completely off. Wait at least 30 seconds, then remove the Power Programmer from the OBD-II port,
and recap the port.
20. Turn off and remove the battery charger and enjoy your upgraded BMW.
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