Pattern 2

Fig 1: Starter Relay Body Ground Generated Pulse (Pattern 1)

Courtesy of MAZDA MOTORS CORP.

Terminal:
- Starter relay: 2F (+) <==> body ground (-)
- Starter relay: 3B (+) <==> body ground (-)
- Starter cut relay/TR switch: 3T (+) <==> body ground (-)
Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range

Fig 2: Starter Relay Body Ground Generated Pulse (Pattern 2)
Courtesy of MAZDA MOTORS CORP.