Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Terminals Of Ecm

TERMINALS OF ECM

1. ECM

HINT:

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 ...

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