Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Terminals Of Ecu

4D-3 - Body ground

LA - Body ground

Ground

Always

Below 1 Ω

4F-1 - Body ground

LG - Body ground

Battery power supply

Always

11 to 14 V

4K-1 - Body ground

B - Body ground*1

W - Body ground*2

Battery power supply

Always

11 to 14 V

G32-19 (GND2) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

4A-17 - Body ground

R - Body ground

IG power supply

Engine switch on (IG)

11 to 14 V

Engine switch off

Below 1 V

4A-30 - Body ground

LG - Body ground

ACC power supply

Engine switch on (ACC)

11 to 14 V

Engine switch off

Below 1 V

4A-31 - Body ground

V - Body ground

Rear door courtesy light switch assembly (for RH) input

Rear door RH open

Below 1 V

Rear door RH closed

11 to 14 V

4A-36 - Body ground*

SB - Body ground

Front door inside handle illumination light assembly LH and RH, center console light (for passenger side) (No. 2 interior illumination light sub-assembly), center console light (for driver side (No. 3 interior illumination light sub-assembly) and cup holder light (for front side and rear side) (No. 4 interior illumination light sub-assembly) drive output

Front door inside handle illumination light assembly LH and RH, center console light (for passenger side) (No. 2 interior illumination light sub-assembly), center console light (for driver side (No. 3 interior illumination light sub-assembly) and cup holder light (for front side and rear side) (No. 4 interior illumination light sub-assembly) off

11 to 14 V

Front door inside handle illumination light assembly LH and RH, center console light (for passenger side) (No. 2 interior illumination light sub-assembly), center console light (for driver side (No. 3 interior illumination light sub-assembly) and cup holder light (for front side and rear side) (No. 4 interior illumination light sub-assembly) dimmer control operating (dimming)

Pulse generation

Front door inside handle illumination light assembly LH and RH, center console light (for passenger side) (No. 2 interior illumination light sub-assembly), center console light (for driver side (No. 3 interior illumination light sub-assembly) and cup holder light (for front side and rear side) (No. 4 interior illumination light sub-assembly) at full brightness

Below 2.2 V

4D-10 - Body ground

R - Body ground

Roof console box sub-assembly, spot light assembly, vanity light (visor assembly LH), vanity light (visor assembly RH), front footwell light LH and RH (No. 1 interior illumination light assembly), rear footwell light LH and RH (No. 6 interior illumination light sub-assembly) and front console light (interior illumination light sub-assembly) power supply

DOME CUT relay on

11 to 14 V

DOME CUT relay off

Below 1 V

4D-12 - Body ground

GR - Body ground

Front door unlock detection switch RH input

Front door RH locked

11 to 14 V

Front door RH unlocked

Below 1 V

4D-13 - Body ground

W - Body ground

Front door unlock detection switch LH input

Front door LH locked

11 to 14 V

Front door LH unlocked

Below 1 V

4D-14 - Body ground

GR - Body ground

Rear door unlock detection switch LH input

Rear door LH locked

11 to 14 V

Rear door LH unlocked

Below 1 V

4D-24 - Body ground*

LG - Body ground

Front door inside handle illumination light assembly LH and RH, center console light (for passenger side) (No. 2 interior illumination light sub-assembly), center console light (for driver side) (No. 3 interior illumination light sub-assembly) and cup holder light (for front side and rear side) (No. 4 interior illumination light sub-assembly) power supply

Always

11 to 14 V

4D-29 - Body ground

LA-G - Body ground

Illuminated entry system drive output

Map light LH and map light RH (map light (roof console box sub-assembly)) off (when operated by illuminated entry system)

11 to 14 V

Map light LH and map light RH (map light (roof console box sub-assembly)) on (when operated by illuminated entry system)

Below 1 V

4H-19 - Body ground

LA-B - Body ground

No. 1 luggage compartment light assembly and courtesy light assembly LH and RH power supply

DOME CUT relay on

11 to 14 V

DOME CUT relay off

Below 1 V

4H-24 - Body ground

G - Body ground

Rear door courtesy light switch assembly (for LH) input

Rear door LH open

Below 1 V

Rear door LH closed

11 to 14 V

4H-34 - Body ground

LA-GR - Body ground

Luggage compartment door courtesy light switch (luggage compartment door lock assembly) input

Luggage compartment door open

Below 1 V

Luggage compartment door closed

11 to 14 V

G32-20 (LSWR) - Body ground

L - Body ground

Rear door unlock detection switch RH input

Rear door RH locked

11 to 14 V

Rear door RH unlocked

Below 1 V

G33-1 (FLCY) - Body ground

W - Body ground

Front door courtesy light switch assembly (for LH) input

Front door LH open

Below 1 V

Front door LH closed

11 to 14 V

G33-2 (FLCL) - Body ground

G - Body ground

Courtesy light assembly LH drive output

Courtesy light assembly LH off

11 to 14 V

Courtesy light assembly LH on

Below 1 V

G33-3 (FRCL) - Body ground

L - Body ground

Courtesy light assembly RH drive output

Courtesy light assembly RH off

11 to 14 V

Courtesy light assembly RH on

Below 1 V

G33-6 (FRCY) - Body ground

BE - Body ground

Front door courtesy light switch assembly (for RH) input

Front door RH open

Below 1 V

Front door RH closed

11 to 14 V

G33-14 (ILSW) - Body ground*

W - Body ground

Mood switch signal input

Mood switch off

11 to 14 V

Mood switch on

Below 1 V

G33-20 (TCYL) - Body ground

GR - Body ground

No. 1 luggage compartment light assembly drive output

No. 1 luggage compartment light assembly off

11 to 14 V

No. 1 luggage compartment light assembly on

Below 1 V

G40-10 (SWIL) - G40-11 (AGND)

W - BE

Engine switch illumination drive output

Engine switch illumination on

11 to 14 V

Engine switch illumination off

Below 1 V