ETV maps control the Electronic Throttle Valve operation, which uses a TPS (Throttle Position Sensor) to tell the ECU how much to open the ETV at a certain RPM.
Some models use an 'Absolute' cell value, meaning the value in the cell is how much the ETV will open. In figure A below, we can tell by looking at the cell values that it is using the absolute cell value.
Figure A: Example Yamaha ETV table
Other models, particularly Kawasakis, use a 'Relative' cell value, meaning the cell value is multiplied by its corresponding TPS value at the top of the column to determine it's ETV opening.
Figure B: Example Kawasaki ETV table
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