Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK ECM

HINT:

HINT:

The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

Terminal No. (Symbols)

Wiring Color

Terminal Description

Condition

Specified Condition

E10-23 (VC) - E11-1 (E1)*2

LG - W-B

Neutral position switch power supply

Ignition switch ON

4.5 to 5.5 V

E11-1 (E1) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

E11-22 (NPSW) - E9-23 (ETHW)*2

L - BR

Neutral position switch signal

Ignition switch ON, shift lever in neutral

2.7 to 4.3 V

Ignition switch ON, shift lever in any other than neutral

0.7 to 1.9 V

E12-6 (+BM) - E11-1 (E1)

GR - W-B

Power source of throttle actuator

Always

11 to 14 V

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

R - W-B

D shift position signal

Ignition switch ON, shift lever in D

11 to 14 V

Ignition switch ON, shift lever not in D

Below 1 V

E12-27 (D) - E11-1 (E1)*2

R - W-B

Clutch switch input signal

Ignition switch ON, clutch pedal depressed

Below 1 V

Ignition switch ON, clutch pedal released

11 to 14 V

E13-7 (SFTD) - E11-1 (E1)*1

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)*1

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

E13-15 (ST1-) - E11-1 (E1)

V - W-B

Stop light switch assembly signal

Ignition switch ON, brake pedal depressed

Below 1 V

Ignition switch ON, brake pedal released

11 to 14 V

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

P - W-B

Stop light switch input signal

Brake pedal depressed

11 to 14 V

Brake pedal released

Below 1 V

E13-17 (CCS) - E11-1 (E1)

B - W-B

Cruise control main switch output signal

CANCEL switch ON

1509 to 1571 Ω

-SET switch ON

617 to 643 Ω

+RES switch ON

235 to 245 Ω

Cruise control main switch (ON-OFF button) not pushed

1 MΩ or higher

Cruise control main switch (ON-OFF button) pushed

Below 2.5 Ω

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

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

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

L - W-B

Battery (for measuring battery voltage and for ECM memory)

Always

11 to 14 V

E14-20 (TC) - E11-1 (E1)

G - W-B

DTC output signal

Ignition switch ON

11 to 14 V

Ignition switch ON, connect terminals TC and CG of DLC3

Below 2 V

  • *1: for Automatic Transmission
  • *2: for Manual Transmission
NOTICE:

NOTICE:

Do not apply excessive force to the connector. If a force of 10 kg or more is applied, the connector may be broken.

CHECK FORWARD RECOGNITION CAMERA

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F46-8 (BZ) - F46-10 (GND)

L - W-B

Skid control buzzer output

Ignition switch to ON, buzzer not sounding

11 to 14 V

Ignition switch to ON, buzzer sounding

Below 1 V

F46-7 (IGB) - F46-10 (GND)

BE - W-B

Power source

Ignition switch to ON

11 to 14 V

Ignition switch off

Below 1 V

F46-5 (CA1P) - F46-10 (GND)

L - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 1)

F46-11 (CA1N) - F46-10 (GND)

W - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 2)

F46-6 (CANH) - F46-10 (GND)

B - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 1)

F46-12 (CANL) - F46-10 (GND)

W - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 2)

F46-3 (LKSW) - F46-10 (GND)

GR - W-B

Steering pad switch assembly signal (distance control signal)

Ignition switch to ON, steering pad switch assembly (distance control switch) off

4.75 to 5.25 V

Ignition switch to ON, steering pad switch assembly (distance control switch) on

Below 1 V

F46-10 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(a) Waveform 1

(a) Waveform 1

(1) CAN communication signal

Item

Content

Tester Connection

  • Between F46-5 (CA1P) and F46-10 (GND)
  • Between F46-6 (CANH) and F46-10 (GND)

Tool Setting

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch to ON

HINT:

The waveform varies depending on the CAN communication signal.

(b) Waveform 2

(1) CAN communication signal

(1) CAN communication signal

Item

Content

Tester Connection

  • Between F46-11 (CA1N) and F46-10 (GND)
  • Between F46-12 (CANL) and F46-10 (GND)

Tool Setting

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch to ON

HINT:

The waveform varies depending on the CAN communication signal.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

M8-1 (SGND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

M8-2 (CA2L) - M8-1 (SGND)

W - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 2)

M8-3 (CA2H) - M8-1 (SGND)

W-B - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 1)

M8-5 (CA1P) - M8-1 (SGND)

B - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 1)

M8-6 (CA1N) - M8-1 (SGND)

W - W-B

CAN communication signal

Ignition switch to ON

Pulse generation

(See waveform 2)

M8-8 (IGB) - M8-1 (SGND)

LG - W-B

Power source

Ignition switch to ON

11 to 14 V

CHECK MILLIMETER WAVE RADAR SENSOR

(a) Waveform 1

(a) Waveform 1

(1) CAN communication signal

Item

Content

Tester Connection

  • Between M8-3 (CA2H) and M8-1 (SGND)
  • Between M8-5 (CA1P) and M8-1 (SGND)

Tool Setting

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch to ON

HINT:

The waveform varies depending on the CAN communication signal.

(b) Waveform 2

(1) CAN communication signal

(1) CAN communication signal

Item

Content

Tester Connection

  • Between M8-2 (CA2L) and M8-1 (SGND)
  • Between M8-6 (CA1N) and M8-1 (SGND)

Tool Setting

1 V/DIV., 10 μsec./DIV.

Condition

Ignition switch to ON

HINT:

The waveform varies depending on the CAN communication signal.

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the ECM, refer to Registration. w/o Smart Key System: Click here w/ Smart Key System: Click here When the millimeter wave rad ...

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 ...

Other materials:

Engine does not Start because No Initial Combustion
DESCRIPTION When a key is inserted into the ignition key cylinder, the transponder key coil receives the key ID code and sends it to the transponder key ECU assembly. If an error in communication between the transponder key coil and transponder key ECU assembly occurs, this s ...

Cautions & Notices
CAUTION This is a warning against anything which may cause injury to people if the warning is ignored. You are informed about what you must or must not do in order to reduce the risk of injury to yourself and others. NOTICE This is a warning against anything which may cause damage to the vehi ...

Tire Pressure Warning Light Circuit
DESCRIPTION If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks for 1 minute then illuminates, and tire pressure monitoring is disabled at the same time. At this time, the ECU stores a DTC in memory. Connecting terminals TC and CG of the D ...

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