Function Inspection Using M-MDS

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DIAGNOSTIC PROCEDURE - 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.
1		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: VERIFY IF FUEL GAUGE SENDER UNIT HAS MALFUNCTION Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST .) Is the PENDING CODE/DTC P0460:00, P0461:00, P0462:00 or P0463:00 also present?	Yes	Perform the DTC troubleshooting for the fuel gauge sender unit first because the fuel gauge sender unit cannot detect the fuel tank level and determines that a malfunction is occurring. (See DTC P0460:00 .) (See DTC P0461:00 .) (See DTC P0462:00 .) (See DTC P0463:00 .)
3		No	Go to the next step.
4	PURPOSE: VERIFY FUEL TANK PRESSURE SENSOR MEASURED CORRECTLY Start the engine and idle it. Access the following simulation items using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST .) EVAPCP EVAPCV Change to the following conditions using the simulation function. EVAPCP: 100% EVAPCV: On Access the FTP PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST .) Does the negative pressure change when racing the engine?	Yes	The fuel tank pressure sensor measures correctly. Go to the next step.
4		No	The possibility of a fuel tank pressure sensor malfunction is high. Go to the Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.
5	PURPOSE: VERIFY IF PURGE SOLENOID VALVE IS STUCK OPEN Perform the following procedure to induct barometric pressure to the fuel tank. Access the following simulation items using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST .) EVAPCP EVAPCV Change to the following conditions using the simulation function. EVAPCP: 0% EVAPCV: Off Access the FTP PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST .) NOTE: The displayed PID value is as follows: Approx. 2.6 V (barometric pressure) Perform the following procedure to force drive the CV solenoid valve. Access the following simulation items using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST .) EVAPCP EVAPCV Change to the following conditions using the simulation function. EVAPCP: 0% EVAPCV: On Access the FTP PID using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST .) Is the FTP PID value negative pressure?	Yes	The possibility of a stuck purge solenoid valve open is high. Go to the Troubleshooting Diagnostic Procedure to perform the procedure from Step 2.
5		No	The possibility of clogging between fuel tank pressure sensor and fuel tank is high. Go to the Troubleshooting Diagnostic Procedure to perform the procedure from Step 3.