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Vacuum Diagrams: Introduction

This article contains underhood views and vacuum diagrams of vacuum hose routing. Use these vacuum diagrams during the visual inspection in BASIC DIAGNOSTIC PROCEDURES article. This will assist in identifying improperly routed vacuum hoses which may cause driveability and/or computer-indicated malfunctions.

Fig 1: Vacuum Diagram (ES300 Shown; RX300 Late Release Is Similar - 1 Of 3)

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Fig 2: Vacuum Diagram (ES300 Shown; RX300 Is Similar - 2 Of 2)

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Fig 3: Vacuum Diagram (ES300 Shown; RX300 Late Release Is Similar - 3 Of 3)

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Fig 4: Vacuum Diagram (GS300 - 1 Of 2)

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Fig 5: Vacuum Diagram (GS300 - 2 Of 2)

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Fig 6: Vacuum Diagram (GS400 - 1 Of 2)

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Fig 7: Vacuum Diagram (GS400 - 2 Of 2)

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Fig 8: Vacuum Diagram (LS400 - 1 Of 2)

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Fig 9: Vacuum Diagram (LS400 - 2 Of 2)

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Fig 10: Vacuum Diagram (LX470 - 1 Of 2)

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Fig 11: Vacuum Diagram (LX470 - 2 Of 2)

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Fig 12: Vacuum Diagram (RX300 Early Release)

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Fig 13: Vacuum Diagram (SC300 - 1 Of 2)

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Fig 14: Vacuum Diagram (SC300 - 2 Of 2)

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Fig 15: Vacuum Diagram (SC400 - 1 Of 2)

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Fig 16: Vacuum Diagram (SC400 - 2 Of 2)

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