DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, Gasoline Model): TERMINALS OF ECU; 2022 MY Corolla Corolla Hatchback GR Corolla [06/2021

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001XMRL
Model Year Start: 2022	Model: GR Corolla	Prod Date Range: [06/2021 - 09/2022]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, Gasoline Model): TERMINALS OF ECU; 2022 MY Corolla Corolla Hatchback GR Corolla [06/2021 - 09/2022]

TERMINALS OF ECU

CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

Click here

(b) Measure the resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connectors connected.

Terminal No. (Symbol)	Wiring Color	Input/Output	Terminal Description	Condition	Specified Condition	Related Data List Item
I86-19 (GND2) - Body ground	W-B - Body ground	-	Ground	Always	Below 1 Ω	-

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

Terminal No. (Symbol)	Wiring Color	Input/Output	Terminal Description	Condition	Specified Condition	Related Data List Item
MB-11 (GND1) - Body ground	-	-	Ground	Always	Below 1 Ω	-
MB-30 (ACC) - Body ground	-	Input	ACC power supply	Ignition switch ACC	11 to 14 V	ACC SW
MB-30 (ACC) - Body ground	-	Input	ACC power supply	Ignition switch off	Below 1 V	ACC SW
MB-31 (BECU) - Body ground	-	Input	Battery power supply	Always	11 to 14 V	-
MB-32 (IG) - Body ground	-	Input	IG power supply	Ignition switch ON	11 to 14 V	IG SW
MB-32 (IG) - Body ground	-	Input	IG power supply	Ignition switch off	Below 1 V	IG SW

(e) Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.

Click here

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

Terminal No. (Symbol)	Wiring Color	Input/Output	Terminal Description	Condition	Specified Condition	Related Data List Item
I85-1 (FLCY) - Body ground	BR- Body ground	Input	Front door courtesy light switch (for LH) input	Front door LH open → closed	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	FL Door Courtesy SW
I85-6 (FRCY) - Body ground	SB - Body ground	Input	Front door courtesy light switch (for RH) input	Front door RH open → closed	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	FR Door Courtesy SW
4A-24 (LCTY) - Body ground	LA-BR - Body ground	Input	Rear door courtesy light switch (for LH) input	Rear door LH open → closed	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	RL Door Courtesy SW
4E-31 (RCTY) - Body ground	GR - Body ground	Input	Rear door courtesy light switch (for RH) input	Rear door RH open → closed	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	RR Door Courtesy SW
4A-34 (LGCY) - Body ground	LA-SB - Body ground	Input	Luggage compartment door courtesy light switch input	Luggage compartment door open → closed	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	Luggage Courtesy SW
4F-13 (LSFL) - Body ground	SB - Body ground	Input	Front door LH unlock detection switch input	Front door LH unlocked → locked	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	FL Door Lock Pos
4F-12 (LSFR) - Body ground	BR - Body ground	Input	Front door RH unlock detection switch input	Front door RH unlocked → locked	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	FR Door Lock Pos
4F-14 (LSR) - Body ground*1	GR - Body ground	Input	Rear door LH and RH unlock detection switch input	Rear door LH or RH unlocked → Rear door LH and RH locked	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*5	RL-Door Lock Pos SW RR-Door Lock Pos SW
4A-8 (ACT-) - Body ground	W - Body ground	Output	Door lock motor unlock drive output	Door control switch or driver door key cylinder off → on (unlock)	Below 1 V → 11 to 14 V → Below 1 V	-
4A-9 (ACT-) - Body ground	R - Body ground	Output	Door lock motor unlock drive output	Door control switch or driver door key cylinder off → on (unlock)	Below 1 V → 11 to 14 V → Below 1 V	-
4A-6 (ACT+) - Body ground	B - Body ground	Output	Door lock motor lock drive output	Door control switch or driver door key cylinder off → on (lock)	Below 1 V → 11 to 14 V → Below 1 V	-
4F-4 (ACTD) - Body ground	R - Body ground	Output	Door lock motor unlock drive output	Door control switch or driver door key cylinder off → on (unlock)	Below 1 V → 11 to 14 V → Below 1 V	-
4A-20 (TR+) - Body ground*2	LA-P - Body ground	Output	Luggage compartment door lock motor unlock drive output	Luggage compartment door opening switch off → on	Below 1 V → 11 to 14 V → Below 1 V	-
I84-17 (UL3) - Body ground	V - Body ground	Input	Driver door key-linked unlock input	Driver door key cylinder in neutral position → on (unlock)	11 to 14 V → Below 1 V	D Door Key SW-UL
I84-19 (UL2) - Body ground*3	R - Body ground	Input	Front passenger door key-linked unlock input	Front Passenger door key cylinder in neutral position → on (unlock)	11 to 14 V → Below 1 V	Door Key SW-Unlock
I84-18 (L2) - Body ground	G - Body ground	Input	Driver door or front passenger door*3 key-linked lock input	Driver door or front passenger door*3 key cylinder in neutral position → on (lock)	11 to 14 V → Below 1 V	Door Key SW-Lock
4E-39 (UL1) - Body ground	BR - Body ground	Input	Door control switch assembly unlock switch input	Door control switch assembly unlock switch not pushed → pushed	11 to 14 V → Below 1 V	Door Lock SW-Unlock
4F-16 (L1) - Body ground	LG - Body ground	Input	Door control switch assembly lock switch input	Lock switch of door control switch assembly not pushed → pushed	11 to 14 V → Below 1 V	Door Lock SW-Lock
4E-41 (KSW) - Body ground*4	LG - Body ground	Input	Key unlock warning switch input	No key in ignition key cylinder → Key in ignition key cylinder	11 to 14 V → Below 1 V	Key Unlock Warning SW

*1: w/ Door Unlock Detection Switch
*2: w/ Wireless Door Lock Control System
*3: w/o Wireless Door Lock Control System
*4: w/o Smart Key System
*5: Differs depending on the vehicle model