STEP 1. Using scan tool (M.U.T.-IIISE), read the diagnostic trouble code (DTC).
caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE). |
(1) Connect scan tool (M.U.T.-IIISE). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-IIISE) . (2) Turn on the power supply mode of the electric motor switch.
(3) Read the DTC.
(4) Turn off the power supply mode of the electric motor switch.
Is the diagnostic trouble code other than P1438 set?
Refer to Diagnostic Trouble Code Chart . Go to Step 2.
STEP 2. Using scan tool (M.U.T.-IIISE), check data list item 211: Fuel Tank Pressure Sensor.
(1) Turn on the power supply mode of the electric motor switch.
(2) Remove the fuel cap.
(3) Set scan tool (M.U.T.-IIISE) to the data reading mode for item 211, Fuel Tank Pressure Sensor.- When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg).
- When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg).
- When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg).
- When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg).
(4) Turn off the power supply mode of the electric motor switch.
Is the sensor operating properly?
Go to Step 5. Go to Step 3.
STEP 3. Check of harness damage in F/PR, FPRE and FPR5 line between fuel tank pressure sensor connector and ECM connector.
STEP 4. Replace the fuel tank pressure sensor.
(1) Replace the fuel tank pressure sensor.
(2) Turn on the power supply mode of the electric motor switch.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn off the power supply mode of the electric motor switch.
Is DTC P1438 set?
Replace the ECM (Refer to Removal and Installation ). Then go to Step 9. The inspection is complete.
STEP 5. Check for clogs in evaporative emission hose H.
(1) Drain the fuel from the fuel tank.
(2) Use a hand vacuum pump to check hose H.
Is there hose ventilation?
Go to Step 6. Repair it. Then go to Step 9.
STEP 6. Check the relief valve of fuel tank solenoid valve for clogs.
STEP 7. Check piping clogging between the evaporative emission purge solenoid and fuel tank solenoid valve.
STEP 8. Check the evaporative emission purge solenoid for clogs.
STEP 9. Using scan tool (M.U.T.-IIISE), read the diagnostic trouble code (DTC).
(1) Turn on the power supply mode of the electric motor switch.
(2) After the DTC has been deleted, read the DTC again.
(3) Turn off the power supply mode of the electric motor switch.
Is DTC P1438 set?
Retry the troubleshooting. The inspection is complete.