Engine speed signal

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Connecting terminal: AG (+)-AP (-)
Measuring device setting: 2V/DIV (Y) 5 ms/DIV (X)
Measuring condition: Idle

Fig 1: Engine Speed Signal Graph
Courtesy of MAZDA MOTORS CORP.