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:
Data Signal Circuit between Radio Receiver and Extension Module
DESCRIPTION
The stereo component tuner assembly sends the image data signal to the radio
and display receiver assembly via this circuit.
WIRING DIAGRAM
PROCEDURE
1.
CHECK NO. 1 NAVIGATION WIRE
(a) Disconnect the R33 radio and display receiver assembly connect ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the blind spot monitor main switch assembly (warning canceling switch
assembly) on.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Blind Spot Moni ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL SPIRAL CABLE SUB-ASSEMBLY WITH SENSOR
(a) Check that the ignition switch is OFF.
(b) Check that the battery negative (-) terminal is disconnected.
CAUTION:
Wait at least 90 seconds after disconnecting t ...
