Toyota Tundra (2015 year). Manual — part 2329
(a) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED CONDITION
J4-9 (LSWD) - Body
ground
P - Body
ground
Front door unlock
detection switch LH
input
Front door LH UNLOCK
Below 1 V
Front door LH LOCK
11 to 14 V (or pulse
generation [see
waveform 1 or 2])
J3-27 (LSWP) -
Body ground
V - Body
ground
Front door unlock
detection switch RH
input
Front door RH UNLOCK
Below 1 V
Front door RH LOCK
11 to 14 V (or pulse
generation [see
waveform 3 or 4])
DC-1 (LSWL) -
Body ground
GR - Body
ground
Rear door unlock
detection switch LH
input
Rear door LH UNLOCK
Below 1 V
Rear door LH LOCK
11 to 14 V (or pulse
generation [see
waveform 5 or 6])
J3-5 (LSWR) - Body
ground
Y - Body
ground
Rear door unlock
detection switch RH
input
Rear door RH UNLOCK
Below 1 V
Rear door RH LOCK
11 to 14 V (or pulse
generation [see
waveform 7 or 8])
DD-3 (ACT+) -
Body ground
W - Body
ground
Door lock motor
LOCK drive output
Door control switch or front
door key cylinder LH OFF
Below 1 V
Door control switch or front
door key cylinder LH LOCK
11 to 14 V
J4-5 (ACTD) - Body
ground
P - Body
ground
Door lock motor
UNLOCK drive output
Door control switch or front
door key cylinder LH UNLOCK
11 to 14 V
Door control switch or front
door key cylinder LH OFF
Below 1 V
DD-2 (ACT-) - Body
ground
GR - Body
ground
Door lock motor
UNLOCK drive output
Door control switch or front
door key cylinder LH UNLOCK
11 to 14 V
Door control switch or front
door key cylinder LH OFF
Below 1 V
DC-24 (ACT+) -
Body ground
W - Body
ground
Door lock motor
LOCK drive output
Door control switch or front
door key cylinder LH OFF
Below 1 V
Door control switch or front
door key cylinder LH LOCK
11 to 14 V
DC-23 (ACT-) -
Body ground
L - Body
ground
Door lock motor
UNLOCK drive output
Door control switch or front
door key cylinder LH UNLOCK
11 to 14 V
Door control switch or front
door key cylinder LH OFF
Below 1 V
DD-53 (L2) - Body
ground
V - Body
ground
Front door key switch
LH LOCK input
Front door key cylinder LH
LOCK
Below 1 V
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: TERMINA...
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED CONDITION
Ignition switch OFF, all doors
closed and front door key
cylinder LH neutral position
11 to 14 V (or pulse
generation [see
waveform 9 or 10])
J4-10 (UL3) - Body
ground
B - Body
ground
Front door key switch
LH UNLOCK input
Front door key cylinder LH
UNLOCK
Below 1 V
Ignition switch OFF, all doors
closed and front door key
cylinder LH neutral position
11 to 14 V (or pulse
generation [see
waveform 9 or 10])
DD-49 (L1) - Body
ground
B - Body
ground
Door control switch
LOCK input
Door control switch OFF
10 kΩ or higher
Door control switch LOCK
Below 1 Ω
DD-52 (UL1) - Body
ground
R - Body
ground
Front door control
switch LH UNLOCK
input
Front door control switch LH
OFF
10 kΩ or higher
Front door control switch LH
UNLOCK
Below 1 Ω
DD-40 (UL1) - Body
ground
W - Body
ground
Front door control
switch RH UNLOCK
input
Front door control switch RH
OFF
10 kΩ or higher
Front door control switch RH
UNLOCK
Below 1 Ω
DD-21
(GND1,GND2) -
Body ground
B - Body
ground
Power ground
Always
Below 1 Ω
DB-13 (BECU) -
Body ground
GR - Body
ground
+B power source
(signal system)
Always
11 to 14 V
If the result is not as specified, the ECU may have a malfunction.
(1) Using an oscilloscope, check the waveform 1.
Waveform 1 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
J4-9 (LSWD) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Front door LH LOCK
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: TERMINA...
(2) Using an oscilloscope, check the waveform 2.
ITEM
CONTENT
Terminal No. (Symbols)
J4-9 (LSWD) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Front door LH LOCK
(3) Using an oscilloscope, check the waveform 3.
Waveform 3 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
J3-27 (LSWP) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Front door RH LOCK
(4) Using an oscilloscope, check the waveform 4.
Waveform 4 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
J3-27 (LSWP) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Front door RH LOCK
(5) Using an oscilloscope, check the waveform 5.
Waveform 5 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
DC-1 (LSWL) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Rear door LH LOCK
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: TERMINA...
(6) Using an oscilloscope, check the waveform 6.
Waveform 6 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
DC-1 (LSWL) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Rear door LH LOCK
(7) Using an oscilloscope, check the waveform 7.
Waveform 7 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
J3-5 (LSWR) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Rear door RH LOCK
(8) Using an oscilloscope, check the waveform 8.
Waveform 8 (Reference)
ITEM
CONTENT
Terminal No. (Symbols)
J3-5 (LSWR) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Rear door RH LOCK
(9) Using an oscilloscope, check the waveform 9.
Waveform 9 (Reference)
ITEM
CONTENT
Terminal No.
(Symbols)
DD-53 (L2) - Body ground
J4-10 (UL3) - Body ground
Tool Setting
5 V/DIV., 20 ms/DIV.
Condition
Ignition switch OFF, all doors closed and front door
lock key cylinder LH neutral position
DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: TERMINA...
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