Fuel Pump Control Module (Diagnostic) Signal

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Fuel Pump Control Module (Diagnostic) Wave Pattern Signal

Courtesy of MAZDA MOTORS CORP.

PCM terminals

2AX (+)-body ground (-)

Oscilloscope setting

2 V/DIV (Y), 100 ms/DIV (X), DC range

Vehicle condition

Idle after warm up