Toyota Tundra (2015 year). Manual — part 679
Last Modified: 9-16-2014
6.6 U
Doc ID: RM000000W740LLX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: TERMINALS OF ECM; 2015
MY Tundra [08/2014 - ]
TERMINALS OF ECM
1. CHECK ECM
HINT:
Each ECM terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the
terminals to be inspected. The standard voltage between the terminals is shown under "Specified
Condition".
Use the illustration above as a reference for the ECM terminals.
TERMINAL NO.
(SYMBOL)
WIRING
COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED
CONDITION
A24-21 (L4) -
D74-81 (E1)
G - BR
4L position signal
Ignition switch ON
Transfer position
switch on 4L
Below 1.5 V
A24-21 (L4) -
D74-81 (E1)
G - BR
4L position signal
Ignition switch ON
Transfer position
switch not on 4L
11 to 14 V
D74-120 (NSW) -
D74-81 (E1)
L - BR
PNP switch signal
Ignition switch ON
Shift lever on P or N
Below 1 V
D74-120 (NSW) -
D74-81 (E1)
L - BR
PNP switch signal
Ignition switch ON
Shift lever not on P or
N
11 to 14 V
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
TERMINAL NO.
(SYMBOL)
WIRING
COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED
CONDITION
D74-2 (P) - D74-81
(E1)
G-B - BR
P shift position switch
signal
Ignition switch ON
Shift lever on P
11 to 14 V
D74-2 (P) - D74-81
(E1)
G-B - BR
P shift position switch
signal
Ignition switch ON
Shift lever not on P
Below 1 V
D74-26 (R) - D74-81
(E1)
L-R - BR
R shift position switch
signal
Ignition switch ON
Shift lever on R
11 to 14 V
D74-26 (R) - D74-81
(E1)
L-R - BR
R shift position switch
signal
Ignition switch ON
Shift lever not on R
Below 1 V
D74-25 (N) - D74-81
(E1)
G-W - BR
N shift position switch
signal
Ignition switch ON
Shift lever on N
11 to 14 V
D74-25 (N) - D74-81
(E1)
G-W - BR
N shift position switch
signal
Ignition switch ON
Shift lever not on N
Below 1 V
D74-27 (D) - D74-81
(E1)
G - BR
D shift position switch
signal
Ignition switch ON
Shift lever on D
11 to 14 V
D74-27 (D) - D74-81
(E1)
G - BR
D shift position switch
signal
Ignition switch ON
Shift lever not on D
Below 1 V
A24-25 (S) - D74-81
(E1)
Y - BR
S shift position switch
signal
Ignition switch ON
Shift lever on S
11 to 14 V
A24-25 (S) - D74-81
(E1)
Y - BR
S shift position switch
signal
Ignition switch ON
Shift lever not on S
Below 1 V
A24-38 (SFTU) -
D74-81 (E1)
G - BR
Up-shift position switch
signal
Ignition switch ON
Shift lever on S
11 to 14 V
A24-38 (SFTU) -
D74-81 (E1)
G - BR
Up-shift position switch
signal
Ignition switch ON
Shift lever "+"
position (up-shift)
Below 1 V
A24-27 (SFTD) -
D74-81 (E1)
BE - BR
Down-shift position
switch signal
Ignition switch ON
Shift lever on S
11 to 14 V
A24-27 (SFTD) -
D74-81 (E1)
BE - BR
Down-shift position
switch signal
Ignition switch ON
Shift lever "-"
position (down-shift)
Below 1 V
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
TERMINAL NO.
(SYMBOL)
WIRING
COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED
CONDITION
A24-36 (STP) -
D74-81 (E1)
SB - BR
Stop light switch signal
Brake pedal is depressed
7.5 to 14 V
A24-36 (STP) -
D74-81 (E1)
SB - BR
Stop light switch signal
Brake pedal is released
Below 1.5 V
D74-7 (S1) - D74-81
(E1)
R - BR
S1 solenoid signal
1st gear
Below 1 V
D74-7 (S1) - D74-81
(E1)
R - BR
S1 solenoid signal
Not on 1st gear
11 to 14 V
D74-6 (S2) - D74-81
(E1)
W - BR
S2 solenoid signal
1st, 2nd or 6th gear
11 to 14 V
D74-6 (S2) - D74-81
(E1)
W - BR
S2 solenoid signal
3rd, 4th or 5th gear
Below 1 V
D74-3 (S3) - D74-81
(E1)
G-W - BR
S3 solenoid signal
1st, 2nd or 3rd gear
11 to 14 V
D74-3 (S3) - D74-81
(E1)
G-W - BR
S3 solenoid signal
4th, 5th or 6th gear
Below 1 V
D74-5 (S4) - D74-81
(E1)
G-R - BR
S4 solenoid signal
5th or 6th gear
11 to 14 V
D74-5 (S4) - D74-81
(E1)
G-R - BR
S4 solenoid signal
1st, 2nd, 3rd or 4th gear
Below 1 V
D74-4 (SR) - D74-81
(E1)
G - BR
SR solenoid signal
1st, 2nd, 3rd or 4th gear
11 to 14 V
D74-4 (SR) - D74-81
(E1)
G - BR
SR solenoid signal
5th or 6th gear
Below 1 V
D74-14 (SL1+) -
D74-15 (SL1-)
Y - L
SL1 solenoid signal
5th or 6th gear
Pulse generation
D74-12 (SL2+) -
D74-13 (SL2-)
G-R - L-W
SL2 solenoid signal
Engine is idling
Pulse generation
D74-9 (SLT+) -
D74-8 (SLT-)
B - G-B
SLT solenoid signal
Engine is idling
Pulse generation
D74-10 (SLU+) -
D74-11 (SLU-)
L-Y - L-R
SLU solenoid signal
5th (lock-up) gear or 6th
(lock-up) gear
Pulse generation
D74-122 (THO1) -
D74-98 (ETHA)
G-Y - BR
No. 1 ATF temperature
sensor signal
No. 1 ATF temperature: 115°C
(239°F) or more
Below 1.5 V
D74-99 (THO2) -
D74-98 (ETHA)
L - BR
No. 2 ATF temperature
sensor signal
No. 2 ATF temperature: 115°C
(239°F) or more
Below 1.5 V
D74-101 (SP2+) -
D74-100 (SP2-)
Y - B
Speed sensor SP2 signal
Vehicle speed 20 km/h (12
mph)
Pulse generation
(see waveform
1)
D74-124 (NT+) -
D74-123 (NT-)
Y - B
Speed sensor NT signal
Engine is idling
(shift lever on P or N)
Pulse generation
(see waveform
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
TERMINAL NO.
(SYMBOL)
WIRING
COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED
CONDITION
2)
A24-10 (CANH) -
D74-81 (E1)
GR - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform
3)
A24-11 (CANL) -
D74-81 (E1)
W - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform
4)
A24-51 (PWR) -
D74-81 (E1)
L - BR
Tow/haul pattern select
switch signal
Ignition switch ON
Tow/haul pattern
select switch ON
0 to 1.5 V
A24-51 (PWR) -
D74-81 (E1)
L - BR
Tow/haul pattern select
switch signal
Ignition switch ON
Tow/haul pattern
select switch OFF
Pulse
generation*
HINT:
(a) Using an oscilloscope, check waveform 1.
Reference:
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
D74-101 (SP2+) -
D74-100 (SP2-)
2 V/DIV., 20
msec./DIV.
Vehicle speed 20 km/h
(12 mph)
(b) Using an oscilloscope, check waveform 2.
Reference:
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
D74-124 (NT+) -
D74-123 (NT-)
1 V/DIV., 2
msec./DIV.
Engine is idling (P or N
position)
AB60F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMIS...
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