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
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

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:

Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch
DESCRIPTION If the manual up/down function can be performed but the auto up/down function cannot, then the fail-safe mode may be functioning. If the power window initialization (See page ) has not been performed, the auto up/down function will not operate. WIRING DIAGRAM CAUTION / NOTICE ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT FRONT AXLE HUB BEARING (a) Remove the front wheel. (b) for 4WD: (1) Remove the front axle hub grease cap (See page ). (c) Remove the front disc brake caliper (See page ). (d) Remove the front disc. (e) Inspect the axle hub backlash. (1) Usi ...

Occupant Classification System Malfunction (B1650/32)
DESCRIPTION The occupant classification system circuit consists of the airbag sensor assembly and the occupant classification system. When the airbag sensor assembly receives signals from the occupant detection ECU, it determines whether or not the instrument panel passenger without door airba ...

© 2011-2021 Copyright www.ttguide.net