Outline Of Diagnosis

Check if there is a leakage in fuel system or not, and perform the function diagnosis of valve.

Fig 1: Identifying Fuel System Component

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In this system diagnosis, checking for leakage and valve function is conducted by changing the fuel tank pressure, and monitoring the pressure change using the fuel tank pressure sensor. 0.04 inch diagnosis is performed in the order of mode Z, mode A, mode B, mode C, mode D and mode E, and 0.02 inch diagnosis is performed in the order of mode Y, mode A, mode B, mode C, mode D and mode E.

• 0.04-Inch Diagnosis 
  Fig 2: Identifying Inch Diagnosis Circuit Diagram

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  Fig 3: Description Period Table

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• 0.02-inch Diagnosis 
  Fig 4: Identifying Inch Diagnosis Circuit Diagram

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  Fig 5: Description Period Table

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• Mode Table for Evaporative Emission Control System Diagnosis 
• 0.04-inch Diagnosis 
  Fig 6: Mode Table (1 Of 2)

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• 0.02-inch Diagnosis 
  Fig 7: Mode Table (2 Of 2)

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