Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AJMG
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: METER / GAUGE / DISPLAY: HEADUP DISPLAY SYSTEM (for Gasoline Model): TERMINALS OF ECU; 2019 - 2022 MY Avalon [04/2018 -        ]

TERMINALS OF ECU

METER MIRROR SUB-ASSEMBLY

(a) Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Signal Input/Output

Condition

Specified Condition

H1-1 (IG) - Body ground

L - Body ground

Engine switch signal

-

Engine switch off → Engine switch on (IG)

Below 1 V → 11 to 14 V

H1-2 (B) - Body ground

P - Body ground

Battery

-

Always

11 to 14 V

H1-4 (ES) - Body ground

W-B - Body ground

Ground

-

Always

Below 1 Ω

H1-12 (MPX1)

P

CAN communication line

Input/Output

-

-

H1-13 (MPX2)

R

CAN communication line

Input/Output

-

-

H1-14 (TX+)

L

Local bus communication line

Input/Output

-

-

H1-15 (TX-)

GR

Local bus communication line

Input/Output

-

-