ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION SYSTEM > TERMINALS OF ECM

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ECM

G036662E01

HINT:
Each ECM 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 "Specific Condition".
Use the illustration above as a reference for the ECM terminals.


Symbols (Terminals No.)
Wiring Color
Terminal Description
Condition
Specified Condition
L4 (E17-13) - E1 (E17-1)
G-W - BR
L4 shift position switch signal
Ignition switch ON and transfer shift lever on L4
Below 1 V
L4 (E17-13) - E1 (E17-1)
G-W - BR
L4 shift position switch signal
Ignition switch ON and transfer shift lever not on L4
10 to 14 V
TFN (E16-25) - E1 (E17-1)
W-G - BR
N shift position switch signal
Ignition switch ON and transfer shift lever on N
Below 1 V
TFN (E16-25) - E1 (E17-1)
W-G - BR
N shift position switch signal
Ignition switch ON and transfer shift lever not on N
10 to 14 V
L (E13-9) - E1 (E17-1)
GR-L - BR
L shift position switch signal
Ignition switch ON and transfer shift lever on L
10 to 14 V
L (E13-9) - E1 (E17-1)
GR-L - BR
L shift position switch signal
Ignition switch ON and transfer shift lever not on L
Below 1 V
2 (E13-10) - E1 (E17-1)
G-R - BR
2 shift position switch signal
Ignition switch ON and transfer shift lever on 2 and L
10 to 14 V
2 (E13-10) - E1 (E17-1)
G-R - BR
2 shift position switch signal
Ignition switch ON and transfer shift lever not on 2 and L
Below 1 V
R (E13 -11) - E1 (E17-1)
R-Y - BR
R shift position switch signal
Ignition switch ON and transfer shift lever on R
10 to 14 V
R (E13 -11) - E1 (E17-1)
R-Y - BR
R shift position switch signal
Ignition switch ON and transfer shift lever not on R
Below 1 V
D (E13-21) - E1 (E17-1)
G-Y - BR
D shift position switch signal
Ignition switch ON and transfer shift lever on D or 4
10 to 14 V
D (E13-21) - E1 (E17-1)
G-Y - BR
D shift position switch signal
Ignition switch ON and transfer shift lever not on D or 4
Below 1 V
3 (E13-19) - E1 (E17-1)
L - BR
3 shift position switch signal
Ignition switch ON and transfer shift lever on 3
10 to 14 V
3 (E13-19) - E1 (E17-1)
L - BR
3 shift position switch signal
Ignition switch ON and transfer shift lever not on 3
Below 1 V
4 (E13-20) - E1 (E17-1)
G-O - BR
4 shift position switch signal
Ignition switch ON and transfer shift lever on 4
10 to 14 V
4 (E13-20) - E1 (E17-1)
G-O - BR
4 shift position switch signal
Ignition switch ON and transfer shift lever not on 4
Below 1 V
STP (E14-15) - E1 (E17-1)
G-W - BR
Stop light switch signal
Brake pedal is depressed
7.5 to 14 V
STP (E14-15) - E1 (E17-1)
G-W - BR
Stop light switch signal
Brake pedal is released
Below 1.5 V
SLU+ (E16-15) - SLU- (E16-14)
L - W
SLU solenoid signal
5th (lock-up) gear
Pulse generation
(see waveform 1)
S2 (E16-10) - E1 (E17-1)
W-L - BR
S2 solenoid signal
2nd or 3rd gear
10 to 14 V
S2 (E16-10) - E1 (E17-1)
W-L - BR
S2 solenoid signal
1st, 4th or 5th gear
Below 1 V
S1 (E16-11) - E1 (E17-1)
GR - BR
S1 solenoid signal
1st or 2nd gear
10 to 14 V
S1 (E16-11) - E1 (E17-1)
GR - BR
S1 solenoid signal
3rd, 4th or 5th gear
Below 1 V
SLT+ (E16-13) - SLT- (E16-12)
G-Y - L-B
SLT solenoid signal
Engine idle speed
Pulse generation
(see waveform 2)
SR (E16-9) - E1 (E17-1)
G - BR
SR solenoid signal
5th gear
10 to 14 V
SR (E16-9) - E1 (E17-1)
G - BR
SR solenoid signal
1st gear
Below 1 V
SL2+ (E16-17) - SL2- (E16-16)
G-B - G-R
SL2 solenoid signal
Engine idle speed
Pulse generation
(see waveform 3)
SL1+ (E16-19) - SL1- (E16 - 18)
G-W - P-L
SL1 solenoid signal
Engine idle speed
Pulse generation
(see waveform 4)
THO1 (E16-24) - E2 (E15-28)
W-R - BR
No. 1 ATF temperature sensor signal
No. 1 ATF temperature: 115°C (239°F) or more
Below 1.5 V
THO2 (E16-32) - E2 (E15-28)
B-Y - BR
No. 2 ATF temperature sensor signal
No. 2 ATF temperature: 115°C (239°F) or more
Below 1.5 V
SP2+ (E16-34) - SP2- (E16-26)
V - P
Speed sensor (SP2) signal
Vehicle speed 20 km/h (12 mph)
Pulse generation
(see waveform 5)
NT+ (E16-35) - NT- (E16-27)
L - Y
Speed sensor (NT) signal
Engine idle speed
Pulse generation
(see waveform 6)
NSW (E16-8) - E1 (E17-1)
L-Y - BR
PNP switch signal
Ignition switch ON and shift lever on P or N
Below 2 V
NSW (E16-8) - E1 (E17-1)
L-Y - BR
PNP switch signal
Ignition switch ON and shift lever not on P or N
10 to 14 V

Waveform 1 (Reference)
G023426E03
Item
Content
Symbols (Terminal No.)
SLU+ (E16-15) - SLU- (E16-14)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
4th (lock-up) or 5th (lock-up) gear

Waveform 2 (Reference)
G023426E03
Item
Content
Symbols (Terminal No.)
SLT+ (E16-13) - SLT- (E16-12)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine idle speed

Waveform 3 (Reference)
G023426E03
Item
Content
Symbols (Terminal No.)
SL2+ (E16-17) - SL2- (E16-16)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine idle speed

Waveform 4 (Reference)
G023426E03
Item
Content
Symbols (Terminal No.)
SL1+ (E16-19) - SL1- (E16-18)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Engine idle speed

Waveform 5 (Reference)
G020664E03
Item
Content
Symbols (Terminal No.)
SP2+ (E16-34) - SP2- (E16-26)
Tool Setting
2 V/DIV., 2 msec./DIV.
Condition
Vehicle speed 20 km/h (12 mph)

Waveform 6 (Reference)
G020663E02
Item
Content
Symbols (Terminal No.)
NT+ (E16-35) - NT- (E16-27)
Tool Setting
1 V/DIV., 2 msec./DIV.
Condition
Engine idle speed (shift lever on P or N)