STEP 1. Using scan tool (M.U.T.-IIISE), check evaporative emission system component test item 3 and 4: Switching Valve.
STEP 2. Measure the power supply voltage at evaporative leak check module harness side connector.
(1) Disconnect the evaporative leak check module connector and measure at the harness side.
(2) Turn on the power supply mode of the electric motor switch.
(3) Measure the voltage between terminal COVB and ground.- Voltage should be 12V starter battery positive voltage.
(4) Turn off the power supply mode of the electric motor switch.
Is 12V starter battery positive voltage (approximately 12 volts) present?
Go to Step 3. Repair or replace the connector(s), or check and repair the harness of short to ground and open circuit in COVB line between MFI relay connector and evaporative leak check module connector. Then go to Step 8.
STEP 3. Measure the power supply voltage at ECM harness side connector.
(1) Disconnect connector and measure at the harness side.
(2) Short-circuit the terminal C/R of the ECM harness connector to the ground.
(3) Measure the voltage between terminal ECOV and ground.- Voltage should be 12V starter battery positive voltage.
(4) Turn off the power supply mode of the electric motor switch.
Is 12V starter battery positive voltage (approximately 12 volts) present?
Go to Step 5. Go to Step 4.
STEP 4. Check of short to ground and open circuit in ECOV line between evaporative leak check module connector and ECM connector.
STEP 5. Check of harness damage in ECOV line between evaporative leak check module connector and ECM connector.
STEP 6. Check of harness damage in COVB line between MFI relay connector and evaporative leak check module connector.
STEP 7. Using scan tool (M.U.T.-IIISE), check evaporative emission system component test item 3 and 4: Switching Valve.
STEP 8. 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 1 . (2) Check the diagnostic trouble code (DTC).
Is DTC P24BE set?
Retry the troubleshooting. The inspection is complete.