Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecm
TERMINALS OF ECM
HINT:
The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
E14-2 (BATT) - E11-1 (E1) |
L - W-B |
Battery (for measuring battery voltage and for ECM memory) |
Always |
11 to 14 V |
|
E12-6 (+BM) - E11-1 (E1) |
GR - W-B |
Power source of throttle actuator |
Always |
11 to 14 V |
|
E14-3 (+B) - E11-1 (E1) |
B - W-B |
Power source of ECM |
Ignition switch ON |
11 to 14 V |
|
E14-4 (+B2) - E11-1 (E1) |
B - W-B |
Power source of ECM |
Ignition switch ON |
11 to 14 V |
|
E14-25 (MREL) - E11-1 (E1) |
GR - W-B |
EFI-MAIN NO. 1 relay operation signal |
Ignition switch ON |
11 to 14 V |
|
E9-26 (VCNE) - E11-1 (E1) |
R - W-B |
Power source of crankshaft position sensor (specific voltage) |
Ignition switch ON |
4.5 to 5.5 V |
|
E9-25 (NE+) - E9-33 (NE-) |
B - G |
Crankshaft position sensor |
Idling |
Pulse generation |
|
E13-24 (SPD) - E11-1 (E1) |
R - W-B |
Vehicle speed signal from combination meter assembly |
Driving at 20 km/h (12 mph) |
Pulse generation |
|
E11-1 (E1) - Body ground |
W-B - Body ground |
Ground circuit of ECM |
Always |
Below 1 Ω |
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) To check DTCs, connect the Techstream to the Data Link Connector 3 (DLC3)
of the vehicle. The Techstream displays DTCs and freeze frame data. The DTCs and
fre ...
Check Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that cannot be detected in normal mode. Check mode can also detect all of the ma ...
Other materials:
Diameter of the Tire is not Uniform (C1337)
DESCRIPTION
The skid control ECU (brake actuator assembly) measures the speed of each wheel
by receiving signals from the speed sensors. These signals are used for recognizing
whether all 4 wheels are operating properly. Therefore, all wheel signals must indicate
the same speed.
D ...
System Description
SYSTEM DESCRIPTION
1. ENGINE IMMOBILISER SYSTEM DESCRIPTION
(a) The engine immobiliser system determines whether or not to enable starting
of the SFI system based on a comparison of the key ID code and the vehicle pre-registered
code. The engine immobiliser system compares the vehicle certific ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT DIFFERENTIAL CARRIER ASSEMBLY
(a) Connect the actuator hose and connector.
(b) Install the No. 1 mounting support with the 3 bolts.
Torque:
186 N·m {1899 kgf·cm, 138 ft·lbf}
(c) Install the No. 2 mounting support with the 2 bolts.
Torque:
160 N ...
