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

TERMINALS OF ECU

CHECK ABSORBER CONTROL ECU

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

NOTICE:

Inspect the connectors from the back side while the connectors are connected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
K59-1 (IGB) - K59-4 (GND)	GR - W-B	IG power supply	Engine switch on (IG)	11 to 14 V
K59-4 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
K59-8 (CANH) - K59-7 (CANL)	B - W	CAN communication line	Engine switch off	54 to 69 Ω
K59-14 (SGB1) - K59-4 (GND)	R - W-B	Acceleration sensor RH power source	Engine switch on (IG)	4.75 to 5.25 V
K59-15 (SGB2) - K59-4 (GND)	SB - W-B	Acceleration sensor LH power source	Engine switch on (IG)	4.75 to 5.25 V
K59-22 (SGG1) - K59-4 (GND)	G - W-B	Acceleration sensor RH ground	Always	Below 1 Ω
K59-23 (SGS1) - K59-4 (GND)	L - W-B	Acceleration sensor RH signal input	Engine switch on (IG) with vehicle stationary	2.1 to 2.9 V
K59-24 (SGG2) - K59-4 (GND)	LG - W-B	Acceleration sensor LH ground	Always	Below 1 Ω
K59-25 (SGS2) - K59-4 (GND)	W - W-B	Acceleration sensor LH signal input	Engine switch on (IG) with vehicle stationary	2.1 to 2.9 V

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Adaptive Variable Suspension System: Suspension Control ECU Malfunction (C1781)
DESCRIPTION If a malfunction in the absorber control ECU is detected, DTC C1781 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory C1781 Suspension Control ECU Malfunction One of the following conditions is met: A nonvolatile memory write or read error occ ...

Toyota Avalon (XX50) 2019-2022 Owners Manual