RM38T0EC _58 Vehicle Interior _115226 DOOR LOCK _0510942 WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Smart Entry and Start System) U

DOOR LOCK  WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Smart Entry and Start System)  TERMINALS OF ECU  


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


E469803C09
4.417,3.24 4.802,3.469 0.385,0.229 2.281,4.5 2.667,4.729 0.385,0.229 4.594,4.5 4.979,4.729 0.385,0.229 1.146,6.104 1.531,6.333 0.385,0.229 3,6.104 3.385,6.333 0.385,0.229 4.25,6.104 4.635,6.333 0.385,0.229 3.438,7.781 3.823,8.01 0.385,0.229 2.135,1.385 2.521,1.615 0.385,0.229 2.135,1.771 2.521,2 0.385,0.229 2.292,3.24 2.677,3.469 0.385,0.229 3.792,0.292 4.177,0.521 0.385,0.229 5.26,6.104 5.646,6.333 0.385,0.229 6.26,6.104 6.646,6.333 0.385,0.229 2.01,0.698 2.333,0.427 false 1.396,0.521 1.719,0.25 false 0.948,1.875 1.26,2.073 0.313,0.198 10 false 8K 0.948,2.385 1.26,2.583 0.313,0.198 10 false 8H 0.958,1.083 1.271,1.281 0.313,0.198 10 false 8F 0.958,1.583 1.271,1.781 0.313,0.198 10 false 8E 2.229,1.417 2.688,1.615 0.458,0.198 10 false I86 2.229,1.813 2.688,2.01 0.458,0.198 10 false I85 3.854,0.313 4.24,0.5 0.385,0.188 10 false MB 2.396,3.26 2.865,3.469 0.469,0.208 10 false I85 4.521,3.26 4.979,3.458 0.458,0.198 10 false I86 3.104,6.135 3.563,6.333 0.458,0.198 10 false 8E 3.51,7.802 3.969,8 0.458,0.198 10 false MB 2.385,0.354 2.698,0.552 0.313,0.198 10 false *2 6.021,1.719 6.333,1.917 0.313,0.198 10 false 8B 6.031,1.135 6.344,1.333 0.313,0.198 10 false 8C 0.948,2.135 1.26,2.333 0.313,0.198 10 false 8J 4.688,4.521 5,4.719 0.313,0.198 10 false 8B 2.375,4.531 2.688,4.729 0.313,0.198 10 false 8C 1.26,6.135 1.573,6.333 0.313,0.198 10 false 8F 4.344,6.125 4.656,6.323 0.313,0.198 10 false 8K 5.344,6.125 5.656,6.323 0.313,0.198 10 false 8J 6.365,6.125 6.677,6.323 0.313,0.198 10 false 8H 1.771,0.146 2.083,0.344 0.313,0.198 10 false *1
*1 Power Distribution Box Assembly *2 Main body ECU (multiplex network body ECU)


a.

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

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


b.

Reconnect the power distribution box assembly connector.


c.

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


d.

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

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>INSTALLATION


e.

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

Terminal No. (Symbol) Terminal Description Condition Specified Condition
8C-9 (FRCY) - Body ground Front door courtesy light switch (for RH) input Front door RH open Below 1 V
Front door RH closed 11 to 14 V
8F-3 (FLCY) - Body ground Front door courtesy light switch (for LH) input Front door LH open Below 1 V
Front door LH closed 11 to 14 V
8F-1 (RCTY) - Body ground Rear door courtesy light switch (for RH) input Rear door RH open Below 1 V
Rear door RH closed 11 to 14 V
8F-28 (LCTY) - Body ground Rear door courtesy light switch (for LH) input Rear door LH open Below 1 V
Rear door LH closed 11 to 14 V
8F-2 (BCTY) - Body ground Back door courtesy light switch input Back door closed Below 1 V
Back door open 11 to 14 V
8F-42 (TR+) - Body ground Back door lock motor drive output Back door closed → open Below 1 V → 11 to 14 V → Below 1 V
8C-40 (ACT-) - 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
8F-36 (ACT-) - Body ground*1
8F-37 (ACT-) - Body ground
8B-19 (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
8B-35 (ACT+) - Body ground*1
8F-40 (ACT+) - Body ground
8F-41 (ACT+) - Body ground
I85-3 (LSFR) - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
Front door RH locked 11 to 14 V
I85-9 (LSFL) - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
Front door LH locked 11 to 14 V
I86-23 (LSWR) - Body ground Rear door RH unlock detection switch input Rear door RH unlocked Below 1 V
Rear door RH locked 11 to 14 V
I85-10 (LSWL) - Body ground Rear door LH unlock detection switch input Rear door LH unlocked Below 1 V
Rear door LH locked 11 to 14 V
I85-28 (L2) - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V
Driver door key cylinder not turned 11 to 14 V
I85-4 (UL3) - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V
Driver door key cylinder not turned 11 to 14 V
I85-16 (KSW) - Body ground Unlock warning switch input No key in ignition key cylinder 11 to 14 V
Key in ignition key cylinder Below 1 V
I85-18 (RDA) - Body ground Input from door control receiver
Procedure:
1.

Remove key from ignition key cylinder

2.

Close all doors

3.

Press lock or unlock switch of door control transmitter assembly


11 to 14 V → Pulse generation
I85-17 (PRG) - Body ground Output to door control receiver Key inserted into ignition key cylinder → Key pulled out of ignition key cylinder 11 to 14 V → Pulse generation → 11 to 14 V

*1: Production Date from 2023/04