Instruction
Manual 30-71XX
This product is legal in California for racing vehicles only and should never be used on public
highways. AEM Performance Electronics, 2205 W. 126th Street Unit A, Hawthorne, CA 90250,
Phone: (310) 484-2322 Fax: (310) 484-0152
Document FirmwareUpdate
Hardware
BEFORE beginningthe update process, be sure to have a savedcopy of your tunedsession file (if
needed). If a power failure occurs during the update process, this is the only way to ensure that the
calibration data is not lost. A power failure at certain critical points in this process could render the ECU
inoperative, requiring return and repair at AEM. Ensure the PC has a full battery charge and/or is
connected to AC power. This process can take UP TO 4 MINUTES to complete, especially if the peripheral
microcontroller is updated at the same time.
If the firmware version on the ECU is older than the version supportedby your current version of Infinity
Tuner, a firmware upgrade will be required when you connect. Otherwise, follow the procedure outlined
below.
Note: The firmware update utility is periodically revised and may not match the descriptions below. In the
event of a conflict, please follow the instructions provided in the dialog windows themselves or
supplemental instructions provided by AEM.
1) Connect to Infinity Tuner.
a. Plug the USB cable from the ECU into your computer USB port and key ignition ON.
b. Open Infinity Tuner.
2) Click the ECUdrop-down list and select “Upgrade firmware…”
3) The ECU should not be running an engine at this time. Select “Yes” when the warning message appears.
Begin the Firmware Upgrade process.
a. Select the desired Configuration “Image” on the left.
