Innovate Motorsports OT-1 - Manual (Page 9)

- 9 -
2.3 Connect the OT-1 to your vehicle’s OBD-II port
The power pins on an OBD-II connector are always active, so even if your vehicle’s ignition
switch is off, the power light on the OT-1 should immediately illuminate:
[Photo]
If it does not, disconnect the OT-1 and check with a multi-meter or test light between pins 4
(chassis ground) and pin 16 (battery +) on the OBD-II connector. The power pins are fuse
protected and sometimes get shorted out, particularly if the connector is uncovered.
Once the power light is illuminated, and any sparks or burning smells have been eliminated, the
MTS light should become active within a second or so. It will first be steadily on for two seconds.
This indicates that the OT-1 has determined that it is the first device in the ‘Log Chain’. That is,
no other MTS is connected to its Serial IN connector.
Next the light should begin to blink evenly, several times a second. This indicates that the MTS
data stream is running and now available both via the OT-1’s Serial OUT connection and via the
built in USB port.
[Photo – vehicle lit, point out connectors mentioned]
At this point the OT-1 is also attempting to establish a connection to the vehicle’s ECU.
2.4 Turn on the ignition switch and establish an OBD-II connection
By default, the OT-1 is configured to automatically detect the OBD-II protocol being used (ISO
9141, ISO 14230 (KWP2000), J1850-pwm (Ford), J1850-vpw (GM), and ISO 15765 (CAN)), and
to query one value, RPM.
Because the initialization procedures for some protocols are very slow, this initial detection can
take up to 15 seconds. Please note, once the protocol has been detected, reconnection should
be much faster as long as the OT-1 remains connected to the same vehicle.
Once an ECU and protocol have been detected, the Vehicle light will turn on steadily for 2-5
seconds. During this time the OT-1 is interrogating the vehicle for its list of supported features
and waiting for the vehicle to report that certain mandatory monitoring features are now available.
[photo]
After that, the vehicle light will blink as RPM is read. Please note, the blinking of the MTS light
and the vehicle light are on the same ‘scale’. That is, you can compare the speed being
achieved by the ECU with the current channel selections to the MTS sampling speed by directly
comparing the blinking rates of the two lights. Since the speed and performance of OBD-II varies
dramatically between vehicles, this can be extremely useful. It will be discussed further in the
next chapter, which covers configuring the OT-1.
But, in the mean time, congratulations! Unless you intend to permanently mount the OT-1 in your
vehicle (a process that may involve power tools and swearing), hardware installation is now
complete.