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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 117 (Engine Control System Self Diagnostics) >> Diagnostic Tests >> DTC P0441: EVAP Emission Control System Incorrect Purge Flow Or DTC P0446: EVAP Emission Control System Vent Control Circuit >> Diagnosis & Repair
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Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Using Toyota hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.

For diagnosis and repair procedure with Toyota hand-held tester or Enhanced OBD II scan tool, see Fig 1-Fig 22 .

For diagnosis and repair procedure with generic OBD II scan tool, see Fig 23-Fig 31 .

For ECM location, see Figure. For ECM connector terminal view, see Figure. For EVAP system circuit wiring diagram, see Fig 32. For location of emission related components, see Figure.

For vacuum or EVAP hose routing, see VACUUM DIAGRAMS article. For testing of systems or components, see SYSTEM & COMPONENT TESTING - V6 & V8 article. For removal and installation of components, see REMOVAL & INSTALLATION - V6 & V8 article.

Fig 1: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 1-2)
G00252140Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 3-6)
G00252141Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 7-9)
G00241758Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 10-12)
G00241759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 5: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 13-15)
G00252142Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 6: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 16-18)
G00241761Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 7: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 19-20)
G00247532Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 8: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 21-22)
G00247533Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 9: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 23-24)
G00252143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 10: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 25-26)
G00252144Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 11: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 27-28)
G00252145Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 12: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 29-31)
G00252146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 13: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 32-34)
G00252147Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 14: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 35-37)
G00252148Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 15: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 38-39)
G00252149Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 16: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 40-41)
G00252150Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 17: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 42-44)
G00252151Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 18: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 45-47)
G00252152Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 19: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Step 47 Cont. & Steps 48-50)
G00252153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 20: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Step 50 Cont. & Steps 51-53)
G00252154Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 21: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 54-55)
G00252155Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 22: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 56-57)
G00252156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 23: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 1-3)
G00241777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 24: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 4-6)
G00241778Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 25: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 7-9)
G00241779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 26: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 10-11)
G00247537Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 27: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 12-13)
G00247538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 28: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 14-15)
G00252157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 29: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 16-17)
G00247539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 30: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Step 17 Cont. & Steps 18-19)
G00252158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 31: DTCs P0441 & P0446 Diagnostic Procedure Using OBD II Scan Tool (Steps 20-21)
G00252159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 32: EVAP System Circuit Wiring Diagram
G00252133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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