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Function Inspection Using M-MDS

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P0456-00: (PCM - VIN Y) FUNCTION INSPECTION USING M-MDS

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 and diagnostic monitoring test results (EVAP system related).
    NOTE:
    • Recording can be facilitated using the screen capture function of the PC.
 - Go to the next step.
3 PURPOSE: VERIFY IF DIAGNOSTIC RESULT IS AFFECTED BY MALFUNCTION OF CONTROL PART REQUIRED FOR DIAGNOSIS 
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Are any of the following DTCs displayed?
    • P0443:00
    • P0446:00
    • P0451:00
    • P0452:00
    • P0453:00
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See P0443:00 [PCM (VIN Y)] .)
(See P0446:00 [PCM (VIN Y)] .)
(See P0451:00 [PCM (VIN Y)] .)
(See P0452:00 [PCM (VIN Y)] .)
(See P0453:00 [PCM (VIN Y)] .)
No P0442:00 or P0455:00 is diagnosed: 
  • Go to the next step.

P0456:00 is diagnosed: 
  • Go to Step 5.
4 PURPOSE: VERIFY FUEL FILLER CAP MALFUNCTION 
  • Access the FUEL_CAP_LAMP PID using the M-MDS.
  • Is the FUEL_CAP_LAMP PID value Yes (True)?
 Yes Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
No Go to the next step.
5 PURPOSE: SPECIFY LOCATION OF EVAPORATIVE GAS LEAKAGE (FUEL TANK SIDE) 
  • Disconnect the evaporative hose of the following: (Refer to QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION (VIN Y) in the service information.)
    • Between pressure control valve and fuel tank pressure sensor (pressure control valve side)
  • Plug the disconnected evaporative hose.
  • Open the fuel-filler cap.
  • Access the following PIDs using the M-MDS:
    • BARO
    • FTP
  • Does the FTP PID value correspond to the BARO PID value?
 Yes Go to the next step.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 3.
6 PURPOSE: SPECIFY LOCATION OF EVAPORATIVE GAS LEAKAGE (CHARCOAL CANISTER SIDE) 
  • Reconnect all the removed parts.
  • Disconnect the evaporative hose of the following: (Refer to QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION (VIN Y) in the service information.)
    • Between charcoal canister main and purge solenoid valve (purge solenoid valve side)
    • Between charcoal canister sub and CV solenoid valve (CV solenoid valve side)
  • Plug the evaporative hoses (purge solenoid valve side and CV solenoid valve side).
  • Open the fuel-filler cap.
  • Access the following PIDs using the M-MDS:
    • BARO
    • FTP
  • Does the FTP PID value correspond to the BARO PID value?
 Yes Go to the next step.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 6.
7 PURPOSE: DETERMINE IF MALFUNCTION CAUSED BY CONTROL PART (PURGE SOLENOID VALVE) REQUIRED FOR DIAGNOSIS 
  • Reconnect all the removed parts.
  • Start the engine and idle it.
  • Access the PRG_DUTY PID using the M-MDS.
  • Is the PRG_DUTY PID value normal? (See PID/DATA MONITOR TABLE [PCM (VIN Y)] .)
 Yes Go to the next step.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 11.
8 PURPOSE: DETERMINE IF MALFUNCTION CAUSED BY CONTROL PART (CV SOLENOID VALVE) REQUIRED FOR DIAGNOSIS 
 Yes Go to the next step.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 12.
9 PURPOSE: DETERMINE IF MALFUNCTION CAUSED BY CONTROL PART (FUEL TANK PRESSURE SENSOR) REQUIRED FOR DIAGNOSIS 
 Yes Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 13.
10 PURPOSE: INSPECTION OF EVAPORATIVE GAS LEAKAGE 
 Yes Repair or replace the malfunctioning part.
Go to Troubleshooting Diagnostic Procedure to perform the procedure from repair completion verification 1.
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
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