Terminals Of Ecu [11/2020 - 12/2023]

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

   Refer to REMOVAL [11/2020 - 11/2021] , or refer to REMOVAL [11/2021 - 12/2022] , or refer to REMOVAL [12/2022 - 12/2023]

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

   Tester Connection	Terminal Description	Condition	Specified Condition
   A-11 (GND1) - Body ground	Ground	Always	Below 1 Ω
   A-31 (BECU) - Body ground	Battery power supply	Ignition switch off	11 to 14 V
   A-30 (ACC) - Body ground	ACC power supply	Ignition switch ACC	11 to 14 V
   		Ignition switch off	Below 1 V
   A-32 (IG) - Body ground	IG power supply	Ignition switch ON	11 to 14 V
   		Ignition switch off	Below 1 V

3. Install the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

   Refer to INSTALLATION [11/2020 - 12/2023]

4. Measure the voltage and check for pulses according to the value(s) in the table below.

   Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
   D14-4 (TSW) - Body ground	Luggage door opening switch signal	Luggage compartment door opening switch assembly on	Below 1 V
   		Ignition switch off, all doors closed and luggage compartment door opening switch assembly off	Pulse generation
   D11-27 (TMSW) - Body ground	Luggage door opening cancel switch signal	Luggage compartment door opening cancel switch assembly on	Below 1 V
   		Ignition switch off, all doors closed and luggage compartment door opening cancel switch assembly off	Pulse generation
   4H-27 (LGCY) - Body ground	Luggage door courtesy light switch input signal	Luggage compartment door open	Below 1 V
   		Luggage compartment door closed	Pulse generation
   4F-32 (TR+) - Body ground	Luggage door lock output signal	Luggage compartment door opening switch assembly on	11 to 14 V
   		Luggage compartment door opening switch assembly off	Below 1 V

Refer to TERMINALS OF ECU [11/2020 - 12/2023]