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:
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The procedure listed below is for the LH side.
PROCEDURE
1. REMOVE FRONT WHEEL
2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
3. SEPARATE FRONT STABILIZER LINK ASSEMBLY LH
...
Installation
INSTALLATION
PROCEDURE
1. INSTALL POWER STEERING LINK
(a) Insert the power steering link into the vehicle in the order shown in the
illustration.
Install in this Direction (1)
Install in this Direction (2)
(b) Using SST, inst ...
Precaution
PRECAUTION
1. PRECAUTION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal,
initialize the following systems after the cable is reconnected (See page
).
Perform the Reset Memory procedures (A/T initialization) after replacing
the automatic transmi ...
