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 > Safety Connect System(for Hv Model): Manual (SOS) Switch Green Indicator Malfunction (B1571)
    DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects an open or short in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. The manual (SOS) switch green indicator illuminates after the power switch is turned on (IG). If the safety connect system is not ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

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

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