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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (On-Board Diagnostic - Engine Controls (3 Of 4)) >> DTC P1450-00: Evaporator System: Abnormal Negative Pressure In Fuel Tank >> Function Inspection Using M-MDS

Function Inspection Using M-MDS

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
STEP INSPECTION RESULTS ACTION
1 PURPOSE: VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Verify related Service Bulletins and/or online repair information availability.
  • Is any related repair information available?
Yes Perform repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
2 PURPOSE: RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION 
  • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?
Yes Go to the next step.
No Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
NOTE:
  • Recording can be facilitated using the screen capture function of the PC.
3 PURPOSE: INSPECTION OF CLOGGING BETWEEN FUEL TANK PRESSURE SENSOR AND FUEL TANK 
Yes The possibility of clogging between fuel tank pressure sensor and fuel tank is high.
No Go to the next step.
4 PURPOSE: VERIFY FUEL TANK PRESSURE SENSOR MEASURED CORRECTLY 
Yes Go to the next step.
No Go to the troubleshooting procedure to perform the procedure from Step 1.
5 PURPOSE: VERIFY IF ATMOSPHERE BETWEEN CV SOLENOID VALVE AND ATMOSPHERE CAN RELEASE 

  • Approx. 2.6 V  (barometric pressure)
Yes Go to the next step.
No Go to the troubleshooting procedure to perform the procedure from Step 2.
6 PURPOSE: VERIFY IF PURGE SOLENOID VALVE IS STUCK OPEN 
Yes Go to the troubleshooting procedure to perform the procedure from Step 5.
No Go to the troubleshooting procedure to perform the procedure from Step 1.