FixVault

Home › Mazda › 2013 › CX-5 Touring, AWD › Repair and Diagnosis › Engine Performance › Engine Control Systems › Pcm Inspection › Inspection Using An Oscilloscope (Reference) › Fuel pump control signal

Fuel pump control signal

PCM terminals

2AE(+)-body ground(-)

Oscilloscope setting

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

Vehicle condition

Idle after warm up

Fig 1: Fuel Pump Control Signal Blinking Pattern