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Home >> Mazda >> 2024 >> CX-30 Preferred >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (On-Board Diagnostic - Engine Control (VIN Y) (1 Of 6)) >> DTC P0015-00: Hydraulic Variable Valve Timing Control System: Over-Retarded >> Function Inspection Using M-MDS

Function Inspection Using M-MDS

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P0015:00 (PCM - VIN Y) FUNCTION INSPECTION USING M-MDS

Step Inspection Results Action
1 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.
2 PURPOSE: INSPECT FOR OTHER RELATED DTCs 
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Are any of the following DTCs displayed?
    • P0335:00
    • P0365:00
    • P2090:00
    • P2091:00
 Yes Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
(See P0335-00: .)
(See P0365-00: .)
(See P2090-00: .)
(See P2091-00: .)
Go to the next step.
No Go to the next step.
3 PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY DTC OCCURRING FROM ENGINE OIL PRESSURE 
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Are any of the following DTCs displayed?
    • P0524:00
 Yes Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
(See P0524-00: .)
Go to the next step.
No Go to the next step.
4 PURPOSE: VERIFY CONFORMITY OF ACTUAL EXHAUST VALVE TIMING AND DETERMINE IF MALFUNCTION IS CAUSED BY OCV OR CONNECTOR RELATED 
  • Start the engine and idle it.
  • Access the following PCM PIDs using the M-MDS.
    • VLV_TIMING_ACT_EX
    • VLV_TIMING_DSD_EX
  • Implement the repeatability verification procedure. (See REPEATABILITY VERIFICATION PROCEDURE .)
  • Does the monitor value of the PID item [VLV_TIMING_ACT_EX] conform to the [VLV_TIMING_DSD_EX] PID value?
 Yes Go to the next step.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
5 PURPOSE: VERIFY CONNECTOR CONNECTIONS 
  • Start the engine.
  • Display the PCM PID [VLV_TIMING_ACT_EX] using the MMDS.
  • Does the PID value fluctuate when the following connectors are shaken?
    • OCV
    • PCM
 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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