Toyota Tacoma 2015-2018 Service Manual: Terminals Of Ecm
TERMINALS OF ECM
1. ECM
HINT:
The standard voltage between each pair of ECM terminals 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 |
|---|---|---|---|---|
|
E18-9 (SP2O) - E17-3 (E1) |
L - W-B |
Transmission revolution sensor (SP2) signal |
Vehicle driving |
Pulse generation |
|
E18-10 (SP2B) - E17-3 (E1) |
G - W-B |
Power source for sensor (fixed voltage) |
Ignition switch ON |
11 to 14 V |
|
E18-12 (SL) - E17-3 (E1) |
R - W-B |
Shift solenoid valve SL signal |
All gears |
11 to 14 V |
|
E18-15 (NSW) - E17-3 (E1) |
V - 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 or N |
11 to 14 V |
|||
|
E19-2 (SLU+) - E19-1 (SLU-) |
P - L |
Shift solenoid valve SLU signal |
2nd, 3rd, 4th, 5th or 6th gear (Flex lock-up on) |
Pulse generation |
|
E19-5 (SLT+) - E19-4 (SLT-) |
LG - Y |
Shift solenoid valve SLT signal |
Engine idling |
Pulse generation |
|
E19-7 (SL2+) - E19-6 (SL2-) |
GR - BE |
Shift solenoid valve SL2 signal |
4th, 5th or 6th gear |
Pulse generation |
|
E19-9 (SL1+) - E19-8 (SL1-) |
R - V |
Shift solenoid valve SL1 signal |
1st, 2nd, 3rd or 4th gear |
Pulse generation |
|
E19-13 (SL4+) - E19-12 (SL4-) |
SB - BE |
Shift solenoid valve SL4 signal |
3rd or 5th gear |
Pulse generation |
|
E19-16 (SL3+) - E19-15 (SL3-) |
B - W |
Shift solenoid valve SL3 signal |
2nd or 6th gear |
Pulse generation |
|
E19-17 (SFTU) - E17-3 (E1) |
SB - W-B |
Up-shift position switch signal |
Ignition switch ON and shift lever in S |
11 to 14 V |
|
Ignition switch ON and shift lever in "+" (Up-shift) |
Below 1 V |
|||
|
E19-19 (NTO) - E17-3 (E1) |
W - W-B |
Transmission revolution sensor (NT) signal |
Engine idling |
Pulse generation |
|
E19-20 (THO1) - E19-21 (ETHO) |
P - V |
No. 1 ATF temperature sensor signal |
No. 1 ATF temperature: 115°C (239°F) or higher |
Below 1.5 V |
|
E19-22 (THO2) - E19-21 (ETHO) |
L - V |
No. 2 ATF temperature sensor signal |
No. 2 ATF temperature: 115°C (239°F) or higher |
Below 1.5 V |
|
E19-24 (N) - E17-3 (E1) |
G - 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 |
|||
|
E19-25 (P) - E17-3 (E1) |
GR - 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 |
|||
|
E19-27 (SFTD) - E17-3 (E1) |
R - W-B |
Down-shift position switch signal |
Ignition switch ON and shift lever in S |
11 to 14 V |
|
Ignition switch ON and shift lever in "-" (Down-shift) |
Below 1 V |
|||
|
E19-29 (NTB) - E17-3 (E1) |
Y - W-B |
Power source for sensor (fixed voltage) |
Ignition switch ON |
11 to 14 V |
|
E19-30 (S) - E17-3 (E1) |
B - W-B |
S shift position switch signal |
Ignition switch ON and shift lever in S, "+" or "-" |
11 to 14 V |
|
Ignition switch ON and shift lever not in S, "+" or "-" |
Below 1 V |
|||
|
E20-8 (R) - E17-3 (E1) |
V - 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 |
|||
|
E20-13 (CANH) - E17-3 (E1) |
B - W-B |
CAN communication line |
Ignition switch ON |
Pulse generation |
|
E20-14 (CANL) - E17-3 (E1) |
W - W-B |
CAN communication line |
Ignition switch ON |
Pulse generation |
|
E20-18 (D) - E17-3 (E1) |
SB - W-B |
D shift position switch signal |
Ignition switch ON and shift lever in D, S, "+" or "-" |
11 to 14 V |
|
Ignition switch ON and shift lever not in D, S, "+" or "-" |
Below 1 V |
|||
|
E21-14 (PWMS) - E17-3 (E1) |
P - W-B |
Pattern select switch signal |
Ignition switch ON and pattern select switch pushed |
Below 1 V |
|
Ignition switch ON and pattern select switch not pushed |
11 to 14 V |
Dtc Check / Clear
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal mode to check mode or vice versa,
all DTCs and freeze frame data recorded in normal mode are cleared. Before changing
m ...
Check Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that normal mode cannot detect. Check mode can also detect all the malfuncti ...
Other materials:
Test Mode Procedure
TEST MODE PROCEDURE
1. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK
(a) When the ignition switch is turned ON, check that the ABS warning, brake
warning, and slip indicator lights come on for approximately 3 seconds.
HINT:
When the brake fluid level is low, the brake warning light c ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT AXLE HUB
2. INSTALL FRONT SUSPENSION UPPER ARM
(a) Install a new nut and clip.
Torque:
110 N·m {1122 kgf·cm, 81 ft·lbf}
3. INSTALL FRONT SUSPENSION LOWER ARM
(a) Install the front suspension lower arm with the 2 bolts.
Torque:
160 N·m {1631 ...
Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) (P0778)
DESCRIPTION
Changing from 1st to 6th is performed by the ECM turning shift solenoid valves
SL1, SL2, SL3 and SL4 on and off. If an open or short circuit occurs in any of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valves
to allow the vehicle to be operated ...