HO2S Heater Control Signal
WARNING: This page is about a different car, the 2018 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of MAZDA MOTORS CORP.
PCM terminals
- 2C(+)-body ground(-)
Oscilloscope setting
- 5 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition
- Idle (immediately after starting engine)