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AIM2™ Post Installation Tests
Following successful installation of the AIM2™ vehicle equipment, the module must be programmed
with information sent from the Central Controller. The information is sent to an FMU-3500, then from
the FMU to the AIM2™ module. The AIM2™ module cannot be programmed if it 1) does not have a
heartbeat, 2) does not recognize the OBD/power connection, 3) does not recognize a nozzle tag
insertion into a filler neck ring, and 4) does not recognize an FMU-3500. All these conditions must be
met before the AIM2™ module may be programmed.
A Programming Hose Tag (PHT) is shipped with each new AIM2™ system. The PHT may be used to
test a nozzle tag insertion into a filler neck ring.
An FMU-3500 is required to complete the AIM2™ post installation tests. An FMU-3500 Programmer
is necessary to program installed AIM2™ modules. A portable FMU-3500 Programmer may be
developed to test and program at a location remote from the fuel island FMU-3500 (at the AIM2™
installation location). See Develop an FMU-3500 Programmer (Section 5) for instructions to prepare
a Programmer. The instructions include development of a portable FMU-3500 Programmer.
Perform the following:
1. (OBD) Turn the vehicle ignition switch on. The amber Heartbeat LED should start pulsing, and
the yellow OBD/Speed Sensor LED should illuminate.
2. (Analog) Drive the vehicle. The yellow OBD/Speed Sensor LED should illuminate.
3. Position a PHT over the filler neck ring. Check the red Hose Inserted LED illuminates.
4. Remove the PHT. Check the red Hose Inserted LED goes out.
NOTE
The green FMU Connect LED will illuminate solid green when the AIM2™ module connects to an
FMU-3500. The green FMU Connect LED may blink when the AIM2™ module detects an FMU-
3500 but has not connected to it. In AIM2™ firmware revisions 1.18 through 1.21, a nozzle tag must
be inserted into the filler neck ring for the AIM2™ module to connect to the FMU-3500. AIM2™
firmware revisions 1.22 and above do not require a nozzle tag to be inserted into the filler neck ring
to connect to an FMU-3500. The AIM2 connects as soon as the vehicle stops. Connection will also
occur if a nozzle tag is inserted into the filler neck ring.
5. Move the vehicle within RF range of an FMU-3500 or FMU-3500 Programmer. If using AIM2™
firmware revision 1.18 through 1.21, position a nozzle tag over the filler neck ring. The green
FMU Connect LED should illuminate. If the green LED is blinking, the AIM2™ sees the FMU but
cannot connect.
6. When all LEDs can illuminate, the AIM2™ module is ready to be programmed. Proceed to
AIM2™ Programming (Section 5).
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