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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic - Engine Control System (3 Of 5) >> DTC P1450-00; Evaporator System: Abnormal Negative Pressure In Fuel Tank >> Function Inspection Using M-MDS

Function Inspection Using M-MDS

STEP INSPECTION RESULTS ACTION
1 PURPOSE: VERIFY RELATED REPAIR INFORMATION AVAILABILITY
  • Verify related Service Bulletins and/or on-line 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 FREEZE FRAME DATA/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION
NOTE:
  • Recording can be facilitated using the screen capture function of the PC.
  • Record the FREEZE FRAME DATA/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (EVAP system related) on the repair order.
- Go to the next step.
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
  • EVAPCP
  • EVAPCV
  • Change to the following conditions using the simulation function.
  • EVAPCP: 100 %
  • EVAPCV: On
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
  • EVAPCP
  • EVAPCV
  • Change to the following conditions using the simulation function.
  • EVAPCP: 0 %
  • EVAPCV: Off
  • 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
  • EVAPCP
  • EVAPCV
  • Change to the following conditions using the simulation function.
  • EVAPCP: 0 %
  • EVAPCV: On
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.