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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic - Pcm (VIN C & VIN D) (4 Of 5) >> DTC P2456-00: GPF Pressure Sensor: Output Malfunction >> Function Inspection Using M-MDS

Function Inspection Using M-MDS

P2456: 00 (PCM (H3T)) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 PURPOSE: VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY 
  • Verify related Service Bulletins, on-line repair information, or Service Information availability.
  • Is any related Information available?
 Yes Perform repair or diagnosis according to the available information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
2 PURPOSE: RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION 
  • Record the freeze frame data/snapshot data.
    NOTE:
    • Recording can be facilitated using the screen capture function of the PC.
 - Go to the next step.
3 PURPOSE: VERIFY CONNECTOR CONNECTIONS 
  • Start the engine.
  • Access the FUEL_PRES PID using the M-MDS. (See PID/DATA MONITOR INSPECTION .)
  • Does the PID value fluctuate when the following connectors are shaken?
    • GPF_DIF_PRES
 Yes Repair or replace the applicable wiring harness or connector parts. Go to Troubleshooting Diagnostic Procedure to perform the repair completion verification 1.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
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