Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecm

TERMINALS OF ECM

HINT:

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 both the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. PRECAUTION NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable f ...

Installation
INSTALLATION PROCEDURE 1. REMOVE MONOLITHIC CONVERTER PROTECTOR (a) Install the upper monolithic converter protector and lower monolithic converter protector with the 2 bolts and 2 nuts. Torque: 11 N·m {107 kgf·cm, 8 ft·lbf} (b) Install the clamp with the bolt as shown in the ...

Terminals Of Ecu
TERMINALS OF ECU 1. AIR CONDITIONING AMPLIFIER ASSEMBLY HINT: Check from the rear of the connector while it is connected to the air conditioning amplifier assembly. Terminal No. (Symbol) Wiring Color Terminal Description Condition Spe ...

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