RM3660EC _58 Vehicle Interior _080729 DOOR LOCK _0601181 WIRELESS DOOR LOCK CONTROL SYSTEM(except NR Series Engine with Smart Entry and Start System) U

DOOR LOCK WIRELESS DOOR LOCK CONTROL SYSTEM(except NR Series Engine with Smart Entry and Start System) TERMINALS OF ECU

CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

2.385,3.219 2.823,3.469 0.438,0.25 4.708,3.208 5.146,3.458 0.438,0.25 1.76,4.573 2.198,4.823 0.438,0.25 5.385,4.573 5.823,4.823 0.438,0.25 1.208,6.156 1.646,6.406 0.438,0.25 3.083,6.125 3.521,6.375 0.438,0.25 6.281,6.135 6.719,6.385 0.438,0.25 3.531,7.865 3.969,8.115 0.438,0.25 5.281,6.135 5.719,6.385 0.438,0.25 4.271,6.135 4.708,6.385 0.438,0.25 1.667,1.365 1.969,1.365 false 4.042,0.802 4.042,0.323 4.042,0.323 4.229,0.323 false 1.656,1.698 1.958,1.698 false 0.615,1.167 0.927,1.167 false 0.625,1.604 0.938,1.604 false 0.625,1.865 0.938,1.865 false 0.625,2.094 0.938,2.094 false 0.635,2.344 0.948,2.344 false 5.938,1.229 6.25,1.229 false 5.938,1.844 6.25,1.844 false 3.667,7.917 3.979,8.115 0.313,0.198 10 false MB 4.281,0.229 4.594,0.427 0.313,0.198 10 false MB 2.021,1.281 2.333,1.479 0.313,0.198 10 false I86 2.021,1.615 2.333,1.813 0.313,0.198 10 false I85 0.323,1.083 0.635,1.281 0.313,0.198 10 false 10G 6.302,1.146 6.688,1.344 0.385,0.198 10 false 10F 2.5,3.271 2.813,3.469 0.313,0.198 10 false I85 4.823,3.26 5.135,3.458 0.313,0.198 10 false I86 1.865,4.625 2.177,4.823 0.313,0.198 10 false 10E 1.292,6.208 1.667,6.406 0.375,0.198 10 false 10G 3.177,6.177 3.49,6.375 0.313,0.198 10 false 10A 4.365,6.188 4.729,6.375 0.365,0.188 10 false 10C 5.385,6.188 5.698,6.385 0.313,0.198 10 false 10B 6.385,6.177 6.698,6.375 0.313,0.198 10 false 10D 5.49,4.615 5.927,4.792 0.438,0.177 10 false 10F 6.313,1.76 6.667,1.958 0.354,0.198 10 false 10E 0.313,1.531 0.625,1.729 0.313,0.198 10 false 10A 0.313,1.792 0.625,1.99 0.313,0.198 10 false 10C 0.323,2.021 0.635,2.219 0.313,0.198 10 false 10B 0.323,2.271 0.635,2.469 0.313,0.198 10 false 10D

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

Reconnect the power distribution box assembly connector.

Measure the voltage and 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)	Terminal Description	Condition	Specified Condition
MB-13 (GND1) - Body ground	Ground	Always	Below 1 Ω
MB-14 (GND2) - Body ground	Ground	Always	Below 1 Ω
MB-26 (BECU) - Body ground	Auxiliary battery power supply	Ignition switch off	11 to 14 V
MB-27 (IGR) - Body ground	IG power supply	Ignition switch ON	11 to 14 V

Install the main body ECU (multiplex network body ECU) to the power distribution box assembly.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
10G-22 (FRCY) - Body ground	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)*
10G-23 (FLCY) - Body ground	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)*
10G-27 (RCTY) - Body ground	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)*
10G-18 (LCTY) - Body ground	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)*
10G-5 (LGCY) -Body ground	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)*
10G-32 (TR+) - Body ground	Luggage compartment door lock motor drive output	Luggage compartment door closed → open	Below 1 V → 11 to 14 V → Below 1 V
10E-7 (ACTD) - Body ground	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
10G-34 (ACT-) - Body ground
10G-35 (ACT-) - Body ground
10G-37 (ACT+) - Body ground	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
I85-3 (LSFR) - Body ground	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)*
I85-9 (LSFL) - Body ground	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)*
I86-23 (LSWR) - Body ground	Rear door RH unlock detection switch input	Rear door RH unlocked → locked	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*
I85-10 (LSWL) - Body ground	Rear door LH unlock detection switch input	Rear door LH unlocked → locked	Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*
I85-28 (L2) - Body ground	Driver door key-linked lock input	Driver door key cylinder turned to lock	Below 1 V
I85-28 (L2) - Body ground	Driver door key-linked lock input	Driver door key cylinder not turned	Pulse generation
I85-4 (UL3) - Body ground	Driver door key-linked unlock input	Driver door key cylinder turned to unlock	Below 1 V
I85-4 (UL3) - Body ground	Driver door key-linked unlock input	Driver door key cylinder not turned	Pulse generation

*: Differs depending on the vehicle model

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

4.76,0.5 5.26,0.75 0.5,0.25 3.396,0.5 3.896,0.75 0.5,0.25 1.948,0.5 2.448,0.75 0.5,0.25 4.865,0.531 5.323,0.729 0.458,0.198 10 false I196 3.49,0.542 3.948,0.74 0.458,0.198 10 false O174 2.031,0.542 2.49,0.74 0.458,0.198 10 false O187

Disconnect the I196 certification ECU (smart key ECU assembly) connector.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
I196-29 (E) - Body ground	Ground	Always	Below 1 Ω
I196-6 (+B) - Body ground	Auxiliary battery power supply	Ignition switch off	11 to 14 V

Reconnect the I196 certification ECU (smart key ECU assembly) connector.

Check for pulses according to the value(s) in the table below.

Tester Connection	Terminal Description	Condition	Specified Condition
O174-21 (RCO) - I196-29 (E)	Output to electrical key and tire pressure warning ECU and receiver (Power supply for electrical key and tire pressure warning ECU and receiver. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.)	Proceed: 1. Ignition switch off 2. Bring electrical key transmitter sub-assembly outside detection area but within wireless function operational area 3. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed	Pulse generation (See waveform 1)
O174-12 (CSEL) - I196-29 (E)	Communication channel switching circuit	Proceed: 1. Ignition switch off 2. Close all doors	No pulse generation → Pulse generation
O174-11 (RDAM) - I196-29 (E)	Electrical key and tire pressure warning ECU and receiver communication circuit	Proceed: 1. Ignition switch off 2. All doors locked 3. Bring electrical key transmitter sub-assembly outside detection area but within wireless function operational area 4. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed	Pulse generation (See waveform 2)

0.198,1 0.531,1.198 0.333,0.198 10 GND 1.01,1.885 1.198,2.042 0.188,0.156 10 *a 2.021,1.885 2.208,2.042 0.188,0.156 10 *b

*a	Before lock or unlock switch of electrical key transmitter sub-assembly pressed
*b	After lock or unlock switch of electrical key transmitter sub-assembly pressed

Using an oscilloscope, check waveform 1.

NOTICE:: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 1 (Reference)
Item	Content
Tester Connection	O174-21 (RCO) - I196-29 (E)
Tool Setting	2 V/DIV., 500 ms./DIV.
Condition	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area 3. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed

0.208,1 0.542,1.198 0.333,0.198 10 GND 1.021,1.896 1.208,2.052 0.188,0.156 10 *a 2.188,1.906 2.375,2.063 0.188,0.156 10 *b

*a	Before lock or unlock switch of electrical key transmitter sub-assembly pressed
*b	After lock or unlock switch of electrical key transmitter sub-assembly pressed

Using an oscilloscope, check waveform 2.

NOTICE:: The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

Waveform 2 (Reference)
Item	Content
Tester Connection	O174-11 (RDAM) - I196-29 (E)
Tool Setting	5 V/DIV., 500 ms./DIV.
Condition	Procedure: 1. Ignition switch off 2. All doors locked 3. Electrical key transmitter sub-assembly not inside vehicle 4. Electrical key transmitter sub-assembly brought outside detection area but kept inside wireless function operational area 5. Lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed