LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Engine Control System Self Diagnostics) >> Diagnostic Tests >> DTC P0441: EVAP Emission Control System Incorrect Purge Flow Or P0446: EVAP Emission Control System Vent Control Circuit >> Diagnosis & Repair
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Toyota Sequoia. 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 21 .

For diagnosis and repair procedure with generic OBD II scan tool, see Fig 22-Fig 30 .

For ECM location, see Figure. For ECM connector view, see Figure. For EVAP system circuit wiring diagram, see Fig 31. 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 1-3)
G00241756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 4-6)
G00241757Courtesy 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)
G00241760Courtesy 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)
G00241764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 10: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 25-27)
G00241765Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 11: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 28-30)
G00241766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 12: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 31-33)
G00241767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 13: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 34-36)
G00241768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 14: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 37-39)
G00247534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 15: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 40-41)
G00247535Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 16: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 42-43)
G00241771Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 17: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 44-46)
G00241772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 18: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 47-49)
G00241773Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 19: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 50-52)
G00241774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 20: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 53-55)
G00241775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 21: DTCs P0441 & P0446 Diagnostic Procedure Using Hand Held Tester (Steps 56-58)
G00247536Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 22: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 1-3)
G00241777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 23: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 4-6)
G00241778Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 24: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 7-9)
G00241779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 25: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 10-11)
G00247537Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 26: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 12-13)
G00247538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 27: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 14-15)
G00241782Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 28: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 16-17)
G00247539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 29: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 18-19)
G00247540Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 30: DTCs P0441 & P0446 Diagnostic Procedure (OBD II Scan Tool) (Steps 20-22)
G00241785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 31: EVAP Emission System Circuit Wiring Diagram
G00247531Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals