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

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	-	-

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Audio And Visual System(for Gasoline Model): Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System. Click here When replacing the radio and display receiver assembly, ...

Toyota Avalon (XX50) 2019-2022 Owners Manual