Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecu
TERMINALS OF ECU
CHECK ECM
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:
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
(1) CAN communication signal
|
Item |
Content |
|---|---|
|
Tester Connection |
|
|
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
|
Item |
Content |
|---|---|
|
Tester Connection |
|
|
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
(1) CAN communication signal
|
Item |
Content |
|---|---|
|
Tester Connection |
|
|
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
|
Item |
Content |
|---|---|
|
Tester Connection |
|
|
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 (ignition) switch
■ Engine switch
LOCK
The steering wheel is locked and the key can be removed.
(Vehicles with an automatic transmission: The key can be removed only when the
shift lever is in P.)
ACC
Some electrical components such as the audio system can be used.
ON
All electrical components can ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals ...
Camper information
This information has been prepared in accordance with regulation issued by
the National Highway Traffic Safety Administration of the U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota vehicles with
information on truck-camper loading. Your Toy ...
