Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: System Diagram

SYSTEM DIAGRAM

FUEL FLOW DIAGRAM

*A

for Direct Injection

-

-

*1

Fuel Injector Assembly

*2

Throttle Body with Motor Assembly

*3

Fuel Pressure Sensor (Fuel Delivery Pipe with Sensor Assembly LH) (for High Pressure)

*4

Fuel Pressure Pulsation Damper Assembly

*5

Plunger

*6

Fuel Pump Assembly (for High Pressure)

*7

Camshaft

*8

Fuel Tank Assembly

*9

Fuel Main Valve Assembly (for Low Pressure)

*10

Fuel Main Valve Assembly (for High Pressure)

*11

Fuel Filter

*12

Fuel Pump (for Low Pressure)

*13

Suction Filter

-

-

*a

High Pressure Fuel Line

*b

Low Pressure Fuel Line

*c

to Fuel Injector Assembly (for Port Injection)

-

-

*A

for Port Injection

-

-

*1

Throttle Body with Motor Assembly

*2

Fuel Injector Assembly

*3

Fuel Tank Assembly

*4

Fuel Pressure Sensor (Fuel Delivery Pipe with Sensor Assembly) (for Low Pressure)

*5

Fuel Main Valve Assembly (for Low Pressure)

*6

Fuel Main Valve Assembly (for High Pressure)

*7

Fuel Filter

*8

Fuel Pump (for Low Pressure)

*9

Suction Filter

-

-

*a

Low Pressure Fuel Line

*b

to Fuel Pump Assembly (for High Pressure)

ELECTRICAL CONTROL DIAGRAM

*1

Fuel Injector Assembly (for Direct Injection)

*2

Fuel Injector Assembly (for Port Injection)

*3

Fuel Pressure Sensor (Fuel Delivery Pipe with Sensor Assembly LH) (for High Pressure)

*4

Fuel Pump Assembly (for High Pressure)

*5

ECM

*6

Fuel Tank Assembly

*7

Fuel Pump (for Low Pressure)

*8

Fuel Main Valve Assembly (for Low Pressure)

*9

Fuel Main Valve Assembly (for High Pressure)

*10

Fuel Filter

*11

Suction Filter

*12

Fuel Pressure Sensor (Fuel Delivery Pipe with Sensor Assembly) (for Low Pressure)

*13

Fuel Pump Control ECU

*14

EFI-MAIN NO. 2 Relay

*15

Battery

*16

Engine Switch

HIGH PRESSURE SIDE FUEL SYSTEM WIRING DIAGRAM

LOW PRESSURE SIDE FUEL SYSTEM WIRING DIAGRAM

    Precaution

    Fuel Tank Filler Pipe Protector

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Power Window Control System(for Hv Model): Driver Side Power Window does not Operate with Power Window Master Switch
    DESCRIPTION When the power switch is on (IG), the power window regulator motor assembly (for driver door) is operated by the multiplex network master switch assembly. The power window regulator motor assembly (for driver door) has motor, regulator and ECU functions. WIRING DIAGRAM CAUTION / NOTICE / ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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