Toyota Tacoma 2015-2018 Service Manual: Terminals Of Ecu
TERMINALS OF ECU
1. COMBINATION METER ASSEMBLY
(a) Measure the voltage, resistance and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
C9-1 (CANH) - Body ground |
G - Body ground |
CAN communication line |
- |
- |
|
C9-2 (CANL) - Body ground |
W - Body ground |
CAN communication line |
- |
- |
|
C9-4 (MSCH) - Body ground |
B - Body ground |
Local bus communication line |
- |
- |
|
C9- 5 (MSCL) - Body ground |
W - Body ground |
Local bus communication line |
- |
- |
|
C9-7 (EL) - Body ground |
V - Body ground |
LH turn indicator light signal (Input) |
Ignition switch ON, LH turn signal switch off |
11 to 14 V |
|
Ignition switch ON, LH turn signal switch on |
Below 1 V |
|||
|
C9-8 (ER) - Body ground |
GR - Body ground |
RH turn indicator light signal (Input) |
Ignition switch ON, RH turn signal switch off |
11 to 14 V |
|
Ignition switch ON, RH turn signal switch on |
Below 1 V |
|||
|
C9-9 (SW) - Body ground |
R - Body ground |
Turn switch signal |
Ignition switch ON, LH and RH turn signal switch off |
11 to 14 V |
|
Ignition switch ON, LH or RH turn signal switch on |
Below 1 V |
|||
|
C9-11 (BKSW) - Body ground |
L - Body ground |
Stop light switch signal |
Stop light switch on |
11 to 14 V |
|
Stop light switch off |
Below 1 V |
|||
|
C9-13 (HAZ) - Body ground |
Y - Body ground |
Hazard warning signal switch signal |
Ignition switch ON, hazard warning signal switch not pressed |
11 to 14 V |
|
Ignition switch ON, hazard warning signal switch pressed |
Below 1 V |
|||
|
C9-15 (ILL-) - Body ground |
BE - Body ground |
Illumination signal |
Headlight dimmer switch off |
Below 1 V |
|
Headlight dimmer switch in tail or head position |
Pulse generation |
|||
|
C9-17 (EP) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
C9-18 (ES) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
C9-19 (B) - Body ground |
P - Body ground |
Battery |
Always |
11 to 14 V |
|
C9-20 (IG+) - Body ground |
BE - Body ground |
Ignition switch signal |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
11 to 14 V |
|||
|
C9-21 (L) - C9-23 (E3) |
BE - G |
Fuel level signal |
Ignition switch ON, fuel level full |
Below 1 V |
|
Ignition switch ON, fuel level low (fuel level warning light on) |
4.5 to 9 V |
|||
|
C9-25 (S) - Body ground |
LG - Body ground |
Oil pressure signal |
Ignition switch ON, oil pressure warning OFF |
11 to 14 V |
|
Ignition switch ON, oil pressure warning ON |
Below 1 V |
|||
|
C9-26 (WLVL) - Body ground*1 |
B - Body ground |
Washer fluid level signal |
Ignition switch ON, washer fluid level not low |
11 to 14 V |
|
Ignition switch ON, washer fluid level low |
Below 1 V |
|||
|
C9-28 (SW) - Body ground*2 |
LG - Body ground |
Brake fluid level signal |
Ignition switch ON, brake fluid level not low |
11 to 14 V |
|
Ignition switch ON, brake fluid level low |
Below 1 V |
|||
|
C9-30 (MSM+) - Body ground |
P - Body ground |
Steering pad switch assembly signal |
Ignition switch ON, enter, top and back switches on steering pad switch assembly not pushed |
4.8 to 5.2 V |
|
Ignition switch ON, enter, top or back switches on steering pad switch assembly pushed |
Below 1 V |
|||
|
C9-32 (MSSL) - Body ground |
SB - Body ground |
Steering pad switch assembly signal |
Ignition switch ON, enter, top and back switches on steering pad switch assembly not pushed |
4.8 to 5.2 V |
|
Ignition switch ON, enter, top or back switches on steering pad switch assembly pushed |
Below 1 V |
|||
|
C9-34 (MSTI) - Body ground |
L - Body ground |
Steering pad switch assembly signal |
Ignition switch ON, up, down, right, and left switches on steering pad switch assembly not pushed |
4.8 to 5.2 V |
|
Ignition switch ON, up, down, right, or left switches on steering pad switch assembly pushed |
Below 1 V |
|||
|
C9-36 (OIL) - Body ground*3 |
W - Body ground |
Oil level switch signal |
Ignition switch ON, oil level low |
11 to 14 V |
|
Ignition switch ON, oil level not low |
Below 1 V |
|||
|
C9-37 (VCM) - Body ground*2*3 |
LG - Body ground |
Vacuum switch signal |
Ignition switch ON, vacuum pressure not low |
11 to 14 V |
|
Ignition switch ON, vacuum pressure low |
Below 1 V |
|||
|
C9-39 (SI) - Body ground |
G - Body ground |
Speed signal for other system (Input) |
Ignition switch ON, wheel being rotated |
Pulse generation (See waveform 1) |
|
C9-40 (+S) - Body ground |
V - Body ground |
Speed signal for other system (Output) |
Ignition switch ON, wheel being rotated |
Pulse generation (See waveform 1) |
|
C10-1 (B) - Body ground |
V - Body ground |
Battery |
Always |
11 to 14 V |
|
C10-3 (RRT) - Body ground |
L - Body ground |
RH turn indicator light signal (Input) |
Ignition switch ON, RH turn signal switch off |
Below 1 V |
|
Ignition switch ON, RH turn signal switch on |
11 to 14 V ←→ Below 1 V |
|||
|
C10-5 (RLT) - Body ground |
Y - Body ground |
LH turn indicator light signal (Output) |
Ignition switch ON, LH turn indicator light off |
Below 1 V |
|
Ignition switch ON, LH turn indicator light blinking |
11 to 14 V ←→ Below 1 V |
|||
|
C10-9 (LL) - Body ground |
BE - Body ground |
LH turn indicator light signal (Output) |
Ignition switch ON, LH turn indicator light off |
Below 1 V |
|
Ignition switch ON, LH turn indicator light blinking |
11 to 14 V ←→ Below 1 V |
|||
|
C10-11 (TLT) - Body ground*4 |
V - Body ground |
LH turn indicator light signal (Output) |
Ignition switch ON, LH turn indicator light off |
Below 1 V |
|
Ignition switch ON, LH turn indicator light blinking |
11 to 14 V ←→ Below 1 V |
|||
|
C10-12 (TRT) - Body ground*4 |
SB - Body ground |
RH turn indicator light signal (Output) |
Ignition switch ON, RH turn signal switch off |
Below 1 V |
|
Ignition switch ON, RH turn signal switch on |
11 to 14 V ←→ Below 1 V |
|||
|
C10-13 (B) - Body ground |
W - Body ground |
Battery |
Always |
11 to 14 V |
|
C10-10 (LR) - Body ground |
SB - Body ground |
RH turn indicator light signal (Output) |
Ignition switch ON, RH turn indicator light off |
Below 1 V |
|
Ignition switch ON, RH turn indicator light blinking |
11 to 14 V ←→ Below 1 V |
- *1: Washer Fluid Level Warning
- *2: for Vacuum Booster Type
- *3: for 2GR-FKS
- *4: w/ Trailer Towing System
(1) Waveform 1 (Reference):
|
Item |
Condition |
|---|---|
|
Tool Setting |
5 V/DIV., 20 ms./DIV. |
|
Vehicle Condition |
Ignition switch ON, wheel being rotated |
HINT:
When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.
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 symptom
are list ...
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 p ...
Other materials:
Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT) (P2716)
DESCRIPTION
Refer to the system description for DTC P2714 (See page
).
DTC No.
DTC Detection Condition
Trouble Area
P2716
Open or short is detected in shift solenoid valve SLT circuit for 1 second
or more while driving (1 trip dete ...
Customize Parameters
CUSTOMIZE PARAMETERS
PROCEDURE
1. CUSTOMIZE THEFT DETERRENT SYSTEM (w/ Wireless Door Lock System)
HINT:
The following items can be customized.
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Be sure to make a note ...
Installation
INSTALLATION
PROCEDURE
1. ADJUST COMPRESSOR OIL
(a) for HFC-134a (R134a):
(1) When replacing the compressor and magnetic clutch with new ones, after gradually
discharging the refrigerant gas from the service valve, drain the following volume
of oil from new compressor and magnetic clutch bef ...