STEP 1. Using scan tool (M.U.T.-III), read the diagnostic trouble code (DTC).
caution | To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III). |
(1) Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) . (2) Turn the ignition switch to the "ON" position.
(3) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is DTC P0451 stored?
Refer to DTC P0451 - Evaporative Emission Control System Pressure Sensor Range/Performance . Go to Step 2.
STEP 2. Using scan tool (M.U.T.-III), check data list item 52: Fuel Tank Differential Pressure Sensor.
(1) Turn the ignition switch to the "ON" position.
(2) Remove the fuel cap.
(3) Set scan tool (M.U.T.-III) to the data reading mode for item 52, Fuel Tank Differential Pressure Sensor.- The fuel tank differential pressures should be 1,500 and 3,500 millivolts.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the fuel tank pressure between 1,500 and 3,500 millivolts?
Go to Step 3. Refer to DTC P0451 - Evaporative Emission Control System Pressure Sensor Range/Performance .
STEP 3. Using scan tool (M.U.T.-III), check actuator test item 10: Evaporative Emission Purge Solenoid.
(1) Turn the ignition switch to the "ON" position.
(2) Set scan tool (M.U.T.-III) to the actuator test mode for item 10, Evaporative emission purge solenoid.- An operation sound should be heard and vibration should be felt when the evaporative emission purge solenoid is operated.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Is the solenoid operating properly?
Go to Step 4. Replace the evaporative emission purge solenoid. Then go to Step 6.
STEP 4. Using scan tool (M.U.T.-III), check actuator test item 15: Evaporative Emission Ventilation Solenoid.
(1) Turn the ignition switch to the "ON" position.
(2) Set scan tool (M.U.T.-III) to the actuator test mode for item 15, Evaporative emission ventilation solenoid.- An operation sound should be heard and vibration should be felt when the evaporative emission ventilation solenoid is operated.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Is the solenoid operating properly?
Repair or replace the vent hose and air filter. Then go to Step 5. Replace the evaporative emission ventilation solenoid. Then go to Step 6.
STEP 5. Check the trouble symptoms.
STEP 6. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 5 . (2) Read the diagnostic trouble code.
Is DTC P0441 stored?
Retry the troubleshooting. The inspection is complete.