Automatic Transmission System Terminals Of Ecu

  1. ECM

  1. TCM

  1. Waveform 1 (Reference)

  1. Waveform 2 (Reference)

  1. Waveform 3 (Reference)

  1. Waveform 4 (Reference)

  1. Waveform 5 (Reference)

  1. Waveform 6 (Reference)

  1. Waveform 7 (Reference)

Automatic Transmission System -- Terminals Of Ecu


HINT:
Each ECU terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration below as a reference for the ECU terminals.

ECM

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
NSW (E4-6) - E1 (E6-7)
L-Y - BR
Park/neutral position switch signal
Ignition switch ON and shift lever on P or N
Below 3 V
NSW (E4-6) - E1 (E6-7)
L-Y - BR
Park/neutral position switch signal
Ignition switch ON and shift lever not on P or N
11 to 14 V
STA (E4-7) - E1 (E6-7)
B-Y - BR
Starter signal
Ignition switch ON and shift lever on P or N
Below 3 V
STA (E4-7) - E1 (E6-7)
B-Y - BR
Starter signal
Ignition switch ON and shift lever not on P or N
Below 3 V
STP (E5-15) - E1 (E6-7)
G-W - BR
Stop light switch signal
Brake pedal is depressed
7.5 to 14 V
STP (E5-15) - E1 (E6-7)
G-W - BR
Stop light switch signal
Brake pedal is released
Below 1.5 V
CAN+ (E5-22) - E1 (E6-7)
V - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform 6)
CAN- (E5-21) - E1 (E6-7)
P - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform 7)

TCM

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
NSW (T19-12) - E1 (T19-1)
L-Y - BR
Park/neutral position switch signal
Ignition switch ON and shift lever on P or N
Below 3 V
NSW (T19-12) - E1 (T19-1)
L-Y - BR
Park/neutral position switch signal
Ignition switch ON and shift lever not on P or N
11 to 14 V
STA (T19-11) - E1 (T19-1)
B-Y - BR
Starter signal
Cranking
6 V or more
R (T38-9) - E1 (T19-1)
R-Y - BR
R shift position switch signal
Ignition switch ON and shift lever on R
11 to 14 V
R (T38-9) - E1 (T19-1)
R-Y - BR
R shift position switch signal
Ignition switch ON and shift lever not on R
Below 1.5 V
D (T38-8) - E1 (T19-1)
G-Y - BR
D shift position switch signal
Ignition switch ON and shift lever on D or 3
11 to 14 V
D (T38-8) - E1 (T19-1)
G-Y - BR
D shift position switch signal
Ignition switch ON and shift lever not on D or 3
Below 1.5 V
3 (T38-12) - E1 (T19-1)
G-O - BR
3 shift position switch signal
Ignition switch ON and shift lever on 3
11 to 14 V
3 (T38-12) - E1 (T19-1)
G-O - BR
3 shift position switch signal
Ignition switch ON and shift lever not on 3
Below 1.5 V
2 (T38-11) - E1 (T19-1)
L - BR
2 shift position switch signal
Ignition switch ON and shift lever on 2
11 to 14 V
2 (T38-11) - E1 (T19-1)
L - BR
2 shift position switch signal
Ignition switch ON and shift lever not on 2
Below 1.5 V
L (T38-10) - E1 (T19-1)
G-R - BR
L shift position switch signal
Ignition switch ON and shift lever on L
11 to 14 V
L (T38-10) - E1 (T19-1)
G-R - BR
L shift position switch signal
Ignition switch ON and shift lever not on L
Below 1.5 V
S1 (T19-18) - E1 (T19-1)
GR - BR
S1 solenoid signal
1st or 2nd gear
11 to 14 V
S1 (T19-18) - E1 (T19-1)
GR - BR
S1 solenoid signal
3rd gear or O/D
Below 1.5 V
S2 (T19-17) - E1 (T19-1)
W-L - BR
S2 solenoid signal
2nd or 3rd gear
11 to 14 V
S2 (T19-17) - E1 (T19-1)
W-L - BR
S2 solenoid signal
1st gear or O/D
Below 1.5 V
SL (T19-16) - E1 (T19-1)
G - BR
SL solenoid signal
Vehicle speed 65 km/h (40 mph), lock-up (ON to OFF)
Pulse generation
(see waveform 1)
SL (T19-16) - E1 (T19-1)
G - BR
SL solenoid signal
Vehicle driving under lock-up condition
11 to 14 V
SLT+ (T19-20) - SLT- (T19-19)
G-Y - L-B
SLT solenoid signal
Engine is idling
Pulse generation
(see waveform 2)
THOC (T19-24) - E2 (T19-23)
BR - B-Y
ATF temperature sensor signal
ATF temperature: 115°C (239°F) or more
Below 1.5 V
STP (T37-14) - E1 (T19-1)
G-W - BR
Stop light switch signal
Brake pedal is depressed
7.5 to 14 V
STP (T37-14) - E1 (T19-1)
G-W - BR
Stop light switch signal
Brake pedal is released
Below 1 V
SPD1 (T37-25) - E1 (T19-1)
V-R - BR
Speed signal
Vehicle speed 20 km/h (12 mph)
Pulse generation
(see waveform 3)
NCO+ (T19-3) - NCO- (T19-2)
V - P
Speed sensor (NCO) signal
Engine is idling
Pulse generation
(see waveform 4)
SP2+ (T19-30) - SP2- (T19-29)
R - G
Speed sensor (SP2) signal
Vehicle speed 20 km/h (12 mph)
Pulse generation
(see waveform 5)
IG2 (T37-6) - E1 (T19-1)
B-O - BR
Ignition switch
Ignition switch ON
11 to 14 V
CAN+ (T37-21) - E1 (T19-1)
V - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform 6)
CAN- (T37-20) - E1 (T19-1)
P - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform 7)

Waveform 1 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
SL (T19-16) - E1 (T19-1)
Tool Setting
10 V/DIV., 100 msec./DIV.
Condition
Vehicle speed 65 km/h (40 mph), lock-up (ON to OFF)

Waveform 2 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
SLT+ (T19-20) - SLT- (T19-19)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine is idling

Waveform 3 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
SPD1 (T37-25) - E1 (T19-1)
Tool Setting
5 V/DIV., 20 msec./DIV.
Condition
Vehicle speed 20 km/h (12 mph)

Waveform 4 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
NCO+ (T19-3) - NCO- (T19-2)
Tool Setting
5 V/DIV., 0.5 msec./DIV.
Condition
Engine is idling

Waveform 5 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
SP2+ (T19-30) - SP2- (T19-29)
Tool Setting
2 V/DIV., 2 msec./DIV.
Condition
Vehicle speed 20 km/h (12 mph)

Waveform 6 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
CAN+ (T37-21) - E1 (T19-1)
Tool Setting
1 V/DIV., 10 msec./DIV.
Condition
Ignition switch ON

Waveform 7 (Reference)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.A340E Automatic Transmission.Automatic Transmission System.Automatic Transmission System  Terminals Of Ecu
Item
Content
Symbols (Terminal No.)
CAN- (T37-20) - E1 (T19-1)
Tool Setting
1 V/DIV., 10 msec./DIV.
Condition
Ignition switch ON