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

E10-26 (THO1) - E9-23 (ETHW)

P - BR

No. 1 ATF temperature sensor signal

No. 1 ATF temperature: 115°C (239°F) or higher

Below 1.5 V

E10-34 (THO2) - E9-23 (ETHW)

L - BR

No. 2 ATF temperature sensor signal

No. 2 ATF temperature: 115°C (239°F) or higher

Below 1.5 V

E11-9 (SL1+) - E11-8 (SL1-)

R - V

Shift solenoid valve SL1 signal

1st, 2nd, 3rd or 4th gear

Pulse generation

E11-11 (SLU+) - E11-10 (SLU-)

P - L

Shift solenoid valve SLU signal

2nd, 3rd, 4th, 5th or 6th gear (Flex lock-up on)

Pulse generation

E11-13 (SLT+) - E11-12 (SLT-)

LG - Y

Shift solenoid valve SLT signal

Engine idling

Pulse generation

E12-8 (SL4+) - E12-7 (SL4-)

SB - BE

Shift solenoid valve SL4 signal

3rd or 5th gear

Pulse generation

E12-14 (SL3+) - E12-13 (SL3-)

B - W

Shift solenoid valve SL3 signal

2nd or 6th gear

Pulse generation

E12-15 (SL) - E11-1 (E1)

R - W-B

Shift solenoid valve SL signal

All gears

11 to 14 V

E12-17 (R) - E11-1 (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

E12-18 (P) - E11-1 (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

E12-20 (SL2+) - E12-19 (SL2-)

GR - BE

Shift solenoid valve SL2 signal

4th, 5th or 6th gear

Pulse generation

E12-26 (SP2B) - E11-1 (E1)

G - W-B

Power source for sensor (fixed voltage)

Ignition switch ON

11 to 14 V

E12-27 (D) - E11-1 (E1)

R - 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

E12-28 (N) - E11-1 (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

E12-31 (NTO) - E11-1 (E1)

W - W-B

Transmission revolution sensor (NT) signal

Engine idling

Pulse generation

E12-32 (NTB) - E11-1 (E1)

Y - W-B

Power source for sensor (fixed voltage)

Ignition switch ON

11 to 14 V

E12-33 (SP2O) - E11-1 (E1)

L - W-B

Transmission revolution sensor (SP2) signal

Vehicle driving

Pulse generation

E13-7 (SFTD) - E11-1 (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

E13-8 (SFTU) - E11-1 (E1)

G - 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

E13-12 (STA) - E11-1 (E1)

Y - W-B

Starter assembly signal

Cranking

6 V or higher

E13-13 (NSW) - E11-1 (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

E13-16 (STP) - E11-1 (E1)

P - W-B

Stop light switch assembly signal

Brake pedal depressed

7.5 to 14 V

Brake pedal released

0 to 1.5 V

E13-24 (SPD) - E11-1 (E1)

R - W-B

Vehicle speed signal

Vehicle being driven

Pulse generation

E13-27 (CANH) - E11-1 (E1)

B - W-B

CAN communication line

Ignition switch ON

Pulse generation

E13-28 (PWMS) - E11-1 (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

E13-32 (S) - E11-1 (E1)

P - 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

E13-35 (CANL) - E11-1 (E1)

W - W-B

CAN communication line

Ignition switch ON

Pulse generation

E14-2 (BATT) - E11-1 (E1)

L - W-B

Battery (for measuring battery voltage and for ECM memory)

Always

11 to 14 V

Problem Symptoms Table
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Check Mode Procedure
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Other materials:

Adjustment
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Initialization
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Removal
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