Automatic Transaxle System (For Hatchback) Terminals Of Ecm

Drivetrain. Yaris. Ncp93, 131
U340E Automatic Transmission Transaxle. Yaris. Ncp93, 131

  1. ECM

Automatic Transaxle System (For Hatchback) -- Terminals Of Ecm



ECM

Yaris. Ncp93, 131.U340E Automatic Transmission Transaxle.Automatic Transaxle System (For Sedan).Automatic Transaxle System (For Hatchback) Terminals Of Ecm

HINT:
The standard voltage and resistance of each ECM terminal 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 and resistance between the terminals is shown under "Specific Condition".
Use the illustration above as a reference for the ECM terminals.

Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
A72-1 (BATT) - C51-16 (E1)
Y - W-B
Battery (for measuring battery voltage and for ECM memory)
Always
11 to 14 V
A72-2 (+B) - C51-16 (E1)
B - W-B
Power source of ECM
Ignition switch ON
11 to 14 V
A72-3 (+B2) - C51-16 (E1)
L - W-B
Power source of ECM
Ignition switch ON
11 to 14 V
A72-13 (CANH) - C51-16 (E1)
L - W-B
CAN communication line
Ignition switch ON
Pulse generation
(See waveform 1)
A72-26 (CANL) - C51-16 (E1)
W - W-B
CAN communication line
Ignition switch ON
Pulse generation
(See waveform 2)
A72-58 (3) - C51-16 (E1)
BE - W-B
3 shift position switch signal
Ignition switch ON and shift lever in 3
11 to 14 V
Ignition switch ON and shift lever not in 3
Below 1 V
C51-16 (E1) - Body ground
W-B
Ground
Always
Below 1 Ω
C51-48 (SLU+) - C51-47 (SLU-)
V - R
Shift solenoid valve SLU signal
Engine idling speed
Pulse generation
C51-63 (NSW) - C51-16 (E1)
BE - W-B
Park/Neutral position switch signal
Ignition switch ON and shift lever in P or N
Below 1 V
Ignition switch ON and shift lever not in P and N
11 to 14 V
C51-69 (S2) - C51-16 (E1)
L - W-B
Shift solenoid valve S2 signal
Ignition switch ON
Below 1 V
1st or 4th gear
11 to 14 V
2nd or 3rd gear
Below 1 V
C51-70 (S1) - C51-16 (E1)
R - W-B
Shift solenoid valve S1 signal
Ignition switch ON
11 to 14 V
1st or 2nd gear
11 to 14 V
3rd or 4th gear
Below 1 V
C51-71 (ST) - C51-16 (E1)
GR - W-B
Shift solenoid valve ST signal
Shift lever in D (3rd gear ←→ 4th gear)
Below 1 V ←→ 11 to 14 V
C51-73 (SLT+) - C51-72 (SLT-)
P - L
Shift solenoid valve SLTsignal
Engine idling speed
Pulse generation
C51-79 (R) - C51-16 (E1)
R - W-B
R shift position switch signal
Ignition switch ON and shift lever in R
11 to 14 V
Ignition switch ON and shift lever not in R
Below 1 V
C51-81 (D) - C51-16 (E1)
L - W-B
D shift position switch signal
Ignition switch ON and shift lever in D or 3
11 to 14 V
Ignition switch ON and shift lever not in D and 3
Below 1 V
C51-95 (THO1) - C51-96 (ETHO)
Y - B
ATF (Automatic Transmission Fluid) temperature sensor signal
ATF temperature: 10°C
(50°F) to 145°C (293°F)
4 to 0 V
C51-97 (N) - C51-16 (E1)
V - W-B
N shift position switch signal
Ignition switch ON and shift lever in N
11 to 14 V
Ignition switch ON and shift lever not in N
Below 1 V
C51-98 (L) - C51-16 (E1)
V - W-B
L shift position switch signal
Ignition switch ON and shift lever in L
11 to 14 V
Ignition switch ON and shift lever not in L
Below 1 V
C51-99 (P) - C51-16 (E1)
P - W-B
P shift position switch signal
Ignition switch ON and shift lever in P
11 to 14 V
Ignition switch ON and shift lever not in P
Below 1 V
C51-127 (NT+) - C51-128 (NT-)
L - G
Transmission revolution sensor (NT) signal
Driving at approximately 20 km/h (12 mph)
Pulse generation
(See waveform 3)
C51-131 (2) - C51-16 (E1)
LG - W-B
2 shift position switch signal
Ignition switch ON and shift lever in 2
11 to 14 V
Ignition switch ON and shift lever not in 2
Below 1 V


    Yaris. Ncp93, 131.U340E Automatic Transmission Transaxle.Automatic Transaxle System (For Sedan).Automatic Transaxle System (For Hatchback) Terminals Of Ecm

  1. Waveform 1

    Terminal
    		CANH - E1
    Tool setting
    		1 V/DIV, 10 μs/DIV
    Vehicle conditions
    		Ignition switch ON


    2. Yaris. Ncp93, 131.U340E Automatic Transmission Transaxle.Automatic Transaxle System (For Sedan).Automatic Transaxle System (For Hatchback) Terminals Of Ecm

  2. Waveform 2

    Terminal
    		CANL - E1
    Tool setting
    		1 V/DIV, 10 μs/DIV
    Vehicle conditions
    		Ignition switch ON


    3. Yaris. Ncp93, 131.U340E Automatic Transmission Transaxle.Automatic Transaxle System (For Sedan).Automatic Transaxle System (For Hatchback) Terminals Of Ecm

  3. Waveform 3

    Terminal
    		NT+ - NT-
    Tool setting
    		2 V/DIV, 1 ms/DIV
    Vehicle conditions
    		Driving at approximately 20 km/h (12 mph)