Fan control module signal

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Fan Control Module Signal Waveform Graph

Courtesy of MAZDA MOTORS CORP.

PCM terminals

1R-body ground(-)

Oscilloscope setting

5 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

Idle after warm up