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Home >> Mazda >> 2016 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine >> Engine Control System Operation Inspection >> Engine Control System Inspection >> Main Relay Operation Inspection >> If data monitor function of M-MDS is used
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If data monitor function of M-MDS is used

  1. Warm up the engine and idle it.
  2. Connect the M-MDS to the DLC-2.
  3. Select the RPM and the FUELPW PIDs. Refer too ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)] .)
  4. Monitor both PIDs while performing the following steps:
    1. Depress the accelerator pedal and increase the RPM PID to 4, 000 rpm  .
    2. Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the FUELPW PID is 0 msec  , and 2-5 msec  when the RPM PID drops below 1, 200 rpm  .