Instruction Manual

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Introduction Parts Description PMT Installation Internet Updates Appendix
ADJUST TIRE SIZE
The tire size function allows you to adjust the speed that the PMT will display in one of the
gauge locations to account for larger or smaller than stock tire sizes. The range of tire sizes that
the PMT will adjust for starts at 28” and goes up to 39” and it adjusts in increments of .25”.
* Accurate only if
ECM tire size
setting are at
default factory
values.
DEFAULT
31.0
31.25
31.50
32.0
32.25
32.50
32.75
DEFAULT
Use the Up and Down buttons to scroll
through the available tire sizes; highlight the
tire size that ts what is currently mounted
on the vehicle to display the speed accurately.
Notice that the selected tire size is displayed
in the box on the left side of the screen.
Once the correct speed is highlighted simply
press the go back button to exit. Your selec-
tion will automatically be saved.
Notice that if a speedometer calibration has been performed on the vehicle that it will aect the
value displayed on the PMT.
OPERATING INSTRUCTIONS
Operating Instructions
Default setting:
The default setting reads the speed directly o of the vehicle’s computer. Use this setting if you have
already calibrated the speedometer for larger or smaller aftermarket tires.