Part 2
2AZ-FXE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E,P043F,P2401,P2402,P2419: Evaporative Emission System Reference Orifice Clog Up - continued
DTC P043E - Evaporative Emission System Reference Orifice Clog Up
DTC P043F - Evaporative Emission System Reference Orifice High Flow
DTC P2401 - Evaporative Emission Leak Detection Pump Stuck OFF
DTC P2402 - Evaporative Emission Leak Detection Pump Stuck ON
DTC P2419 - Evaporative Emission System Switching Valve Control Circuit Low
16. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)
(a) Turn the power switch off.
(b) Remove the canister lower cover.
(c) Disconnect the canister pump module connector.
(d) Apply battery voltage to the VLVB and VGND terminals of the canister pump module.
(e) Touch the canister pump module to confirm the vent valve operation.
Result:
(f) Reconnect the canister pump module connector.
B -- REPLACE CANISTER ASSEMBLY
A -- Continue to next step.
17. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - HYBRID VEHICLE CONTROL ECU)
(a) Disconnect the A61 hybrid vehicle control ECU connector.
(b) Disconnect the canister pump module connector.
(c) Measure the resistance between the VPMP terminal of the hybrid vehicle control ECU connector and the VGND terminal of the canister pump module connector.
Standard resistance:
(d) Reconnect the hybrid vehicle control ECU connector.
(e) Reconnect the canister pump module connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE HYBRID VEHICLE CONTROL ECU
18. LOCATE EVAP LEAK PART (PURGE VSV - CANISTER)
(a) Disconnect the vent hose.
(b) Connect the EVAP tester to the vent hose with the adapter.
(c) Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).
(d) Apply soapy water to the piping and connecting parts of the EVAP system.
(e) Look for areas where bubbles appear. This indicates the leak point.
(f) Repair or replace the leak point.
HINT: Disconnect the hose between the canister and the fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks.
NEXT -- Continue to next step.
19. REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))
20. CHECK FUEL TANK CAP ASSEMBLY
(a) Check if the fuel cap is tightened until a few "click" sounds are heard.
(b) If you have the EVAP tester, check the fuel cap using the fuel cap adaptor.
(1) Install the fuel cap to the fuel cap adaptor, and connect the hose from the EVAP tester's pump.
(2) Pressurize the fuel cap adaptor to between 24 and 28 mmHg for 45 seconds.
(3) Stop the pump and seal the fuel cap adaptor.
(4) Wait 2 minutes.
(5) Confirm that the pressure is higher than 15 mmHg.
OK:
Higher than 15 mmHg
NG -- REPLACE FUEL TANK CAP
OK -- Continue to next step.
21. LOCATE EVAP LEAK PART (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK)
(a) Disconnect the vent hose.
(b) Connect the EVAP tester to the vent hose with the adapter.
(c) Connect the Techstream to DLC3.
(d) Turn the power switch on (IG).
(e) Enter the following menus: Powertrain / Engine / Active Test / Activate the Fuel Vapor - Containment Valve.
(f) Turn the fuel vapor-containment valve ON with the tester.
(g) Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).
(h) Apply soapy water to the piping and connecting parts of the EVAP system.
(i) Look for areas where bubbles appear. This indicates the leak point.
(j) Repair or replace the leak point.
HINT: Disconnect the hose between the canister and the fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks.
NEXT -- Continue to next step.
22. REPLACE MALFUNCTIONING PART
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))
23. CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)
(a) Disconnect the k1 fuel vapor-containment valve connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Enter the following menus: Powertrain / Engine / Active Test / Activate the Fuel Vapor - Containment Valve.
(e) Turn the fuel vapor-containment valve ON with the tester.
(f) Measure the voltage between terminals 1 and 2 of the k1 connector.
Standard voltage:
10 to 14 V
OK -- REPLACE FUEL VAPOR-CONTAINMENT VALVE
NG -- Continue to next step.
24. CHECK HARNESS OR CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - EFI NO. 3 FUSE)
(a) Disconnect the k1 fuel vapor-containment valve connector.
(b) Measure the voltage between terminal k1-2 and body ground.
Standard voltage:
10 to 14 V
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
25. CHECK (FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY - HYBRID VEHICLE CONTROL ECU)
(a) Disconnect the A61 hybrid vehicle control ECU connector.
(b) Disconnect the k1 fuel vapor-containment valve connector.
(c) Measure the resistance.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
26. REPLACE HYBRID VEHICLE CONTROL ECU
(a) Replace the hybrid vehicle control ECU Removal.
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))
27. REPLACE PURGE VSV
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))
28. REPLACE CANISTER ASSEMBLY
(a) Replace the canister assembly Removal.
NOTICE: When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the hose from the canister to the fuel tank.
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))
29. REPLACE FUEL VAPOR-CONTAINMENT VALVE
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))
30. REPLACE FUEL TANK CAP
NEXT -- PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))