Sfi System Terminals Of Ecm

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
1Gr-Fe Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. Measure the voltage according to the value(s) in the table below.

Sfi System -- Terminals Of Ecm



Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm


Measure the voltage according to the value(s) in the table below.
HINT:
The standard 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 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
G155-3 (BATT) - C131-1 (E1)
L - BR
Battery (for measuring battery voltage and for ECM memory)
Always
11 to 14 V
G155-7 (+BM) - C131-1 (E1)
R-W - BR
Power source of throttle motor
Always
11 to 14 V
G155-9 (IGSW) - C131-1 (E1)
B-O - BR
Ignition switch
Ignition switch ON
11 to 14 V
G155-1 (+B) - C131-1 (E1)
B - BR
Power source of ECM
Ignition switch ON
11 to 14 V
G155-2 (+B2) - C131-1 (E1)
B - BR
Power source of ECM
Ignition switch ON
11 to 14 V
C131-17 (OC1+) - C131-16 (OC1-)
L-B - R-B
Camshaft timing oil control valve
Idling
Pulse generation
(see waveform 1)
C131-15 (OC2+) - C131-14 (OC2-)
P-L - Y
Camshaft timing oil control valve
Idling
Pulse generation
(see waveform 1)
G155-8 (MREL) - C131-1 (E1)
W-G - BR
MAIN relay
Ignition switch ON
11 to 14 V
C129-23 (VC) - C129-28 (E2)
LG-B - BR
Power source for sensors (specific voltage)
Ignition switch ON
4.5 to 5.5 V
C129-30 (VG) - C129-29 (E2G)
L-W - L-R
Mass air flow meter
Idling, Shift lever position P or N, A/C switch off
0.5 to 3.0 V
C129-22 (THA) - C129-28 (E2)
L-B - BR
Intake air temperature sensor
Idling, Intake air temperature 20°C (68°F)
0.5 to 3.4 V
C129-21 (THW) - C129-28 (E2)
B - BR
Engine coolant temperature sensor
Idling, Engine coolant temperature 80°C (176°F)
0.2 to 1.0 V
C129-20 (VTA1) - C129-28 (E2)
B-R - BR
Throttle position sensor (for engine control)
Ignition switch ON, Throttle valve fully closed
0.5 to 1.2 V
Ignition switch ON, Throttle valve fully open
3.2 to 4.8 V
C129-19 (VTA2) - C129-28 (E2)
LG - BR
Throttle position sensor (for sensor malfunction detection)
Ignition switch ON, Accelerator pedal released
2.1 to 3.1 V
Ignition switch ON, Accelerator pedal depressed
4.6 to 5.0 V
G155-18 (VPA) - G155-20 (EPA)
W-L - BR-W
Accelerator pedal position sensor (for engine control)
Ignition switch ON, Accelerator pedal released
0.5 to 1.1 V
Ignition switch ON, Accelerator pedal depressed
2.6 to 4.5 V
G155-19 (VPA2) - G155-21 (EPA2)
GR-G - BR-Y
Accelerator pedal position sensor (for sensor malfunctioning detection)
Ignition switch ON, Accelerator pedal released
1.2 to 2.0 V
Ignition switch ON, Accelerator pedal depressed
3.4 to 5.0 V
G155-26 (VCPA) - G155-20 (EPA)
LG-R - BR-W
Power source of accelerator pedal position sensor (for VPA)
Ignition switch ON
4.5 to 5.5 V
G155-27 (VCP2) - G155-21 (EPA2)
BR-R - BR-Y
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch ON
4.5 to 5.5 V
C130-2 (HA1A) - C130-7 (E04)
Y - W-B
Air fuel ratio sensor heater
Idling
Pulse generation
(see waveform 2)
Ignition switch ON
11 to 14 V
C130-1 (HA2A) - C130-6 (E05)
R-L - W-B
Air fuel ratio sensor heater
Idling
Pulse generation
(see waveform 2)
Ignition switch ON
11 to 14 V
C130-22 (A1A+) - C131-1 (E1)
B - BR
Air fuel ratio sensor
Ignition switch ON
3.3 V*
C130-23 (A2A+) - C131-1 (E1)
G - BR
Air fuel ratio sensor
Ignition switch ON
3.3 V*
C130-30 (A1A-) - C131-1 (E1)
W - BR
Air fuel ratio sensor
Ignition switch ON
2.9 V*
C130-31 (A2A-) - C131-1 (E1)
R - BR
Air fuel ratio sensor
Ignition switch ON
2.9 V*
C129-1 (HT1B) - C131-1 (E1)
G - BR
Heated oxygen sensor heater
Idling
Below 3.0 V
Ignition switch ON
11 to 14 V
C130-5 (HT2B) - C131-1 (E1)
L - BR
Heated oxygen sensor heater
Idling
Below 3.0 V
Ignition switch ON
11 to 14 V
C129-18 (OX1B) - C129-28 (E2)
W - BR
Heated oxygen sensor
Maintain engine speed at 2500 rpm for 2 minutes after warming up
Pulse generation
(see waveform 3)
C130-33 (OX2B) - C129-28 (E2)
B - BR
Heated oxygen sensor
Maintain engine speed at 2500 rpm for 2 minutes after warming up
Pulse generation
(see waveform 3)
C131-2 (#10) - C129-7 (E01)
L - W-B
Fuel injector
Ignition switch ON
11 to 14 V
C131-3 (#20) - C129-7 (E01)
G - W-B
Idling
Pulse generation
(see waveform 4)
C131-4 (#30) - C129-7 (E01)
R - W-B
C131-5 (#40) - C129-7 (E01)
W - W-B
C131-6 (#50) - C129-7 (E01)
L - W-B
C131-7 (#60) - C129-7 (E01)
Y - W-B
C129-8 (IGT1) - C131-1 (E1)
R - BR
Ignition coil (ignition signal)
Idling
Pulse generation
(see waveform 7)
C129-9 (IGT2) - C131-1 (E1)
R-L - BR
C129-10 (IGT3) - C131-1 (E1)
G-B - BR
C129-11 (IGT4) - C131-1 (E1)
G - BR
C129-12 (IGT5) - C131-1 (E1)
B-L - BR
C129-13 (IGT6) - C131-1 (E1)
P-L - BR
C129-24 (IGF1) - C131-1 (E1)
G-R - BR
Ignition coil
(ignition confirmation signal)
Ignition switch ON
4.5 to 5.5 V
Idling
Pulse generation
(see waveform 7)
C130-29 (KNK1) - C130-28 (EKNK)
B - W
Knock sensor
Maintain engine speed at 4000 rpm after warming up
Pulse generation
(see waveform 5)
C130-21 (KNK2) - C130-20 (EKN2)
R - G
Knock sensor
Maintain engine speed at 4000 rpm after warming up
Pulse generation
(see waveform 5)
C131-19 (VV1+) - C131-29 (VV1-)
R - G
Variable valve timing (VVT) sensor
Idling
Pulse generation
(see waveform 6)
C131-18 (VV2+) - C131-28 (VV2-)
Y - L
Variable valve timing (VVT) sensor
Idling
Pulse generation
(see waveform 6)
C129-21 (NE+) - C129-20 (NE-)
B - W
Crankshaft position sensor
Idling
Pulse generation
(see waveform 6)
C129-34 (PRG) - C131-1 (E1)
L - BR
Purge VSV
Ignition switch ON
11 to 14 V
Idling
Pulse generation
(see waveform 8)
G154-8 (SPD) - C131-1 (E1)
V-R - BR
Speed signal from combination meter
Ignition switch ON, Rotate driving wheel slowly
Pulse generation
(see waveform 9)
C131-11 (STA) - C131-1 (E1)
B-Y - BR
Starter signal
Cranking
11 to 14 V
C130-8 (NSW) - C131-1 (E1)
L-Y - BR
Park/Neutral position switch signal
Ignition switch ON, Shift position not in P or N
11 to 14 V
Ignition switch ON, Shift position in P or N
Below 3.0 V
G155-15 (STP) - C131-1 (E1)
G-W - BR
Stop light switch
Brake pedal depressed
7.5 to 14 V
Brake pedal released
Below 3.0 V
G155-16 (ST1-) - C131-1 (E1)
R-L - BR
Stop light switch
Ignition switch ON, Brake pedal depressed
Below 3.0 V
Ignition switch ON, Brake pedal released
7.5 to 14 V
C129-5 (M+) - C130-3 (ME01)
B - W-B
Throttle actuator
Idling with warm engine
Pulse generation
(see waveform 10)
C129-4 (M-) - C130-3 (ME01)
W - W-B
Throttle actuator
Idling with warm engine
Pulse generation
(see waveform 11)
G155-10 (FC) - C131-1 (E1)
LG-B - BR
Fuel pump control
Ignition switch ON
11 to 14 V
C131-30 (FPR) - C131-1 (E1)
P-L - BR
Fuel pump control
Ignition switch ON, STA signal OFF
Below 3.0 V
Ignition switch ON, STA signal ON
11 to 14 V
G154-30 (W) - C131-1 (E1)
R-B - BR
MIL
Ignition switch ON
Below 3.0 V
Idling
11 to 14 V
G155-23 (TC) - C131-1 (E1)
P-B - BR
Terminal TC of DLC3
Ignition switch ON
11 to 14 V
G154-1 (TACH) - C131-1 (E1)
B-W - BR
Engine speed
Idling
Pulse generation
(see waveform 12)
C129-33 (ACIS) - C131-1 (E1)
G-B - BR
VSV for ACIS
Ignition switch ON
11 to 14 V
C131-10 (PSW) - C131-1 (E1)
G-Y - BR
Power steering pressure switch
Ignition switch ON
11 to 14 V
HINT:
*: The ECM terminal voltage is constant regardless of the output voltage from the sensor.


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. WAVEFORM 1

    1. Camshaft Timing Oil Control Valve
    ECM Terminal Name
    		Between OC1+ and OC1- or OC2+ and OC2-
    Tester Range
    		5 V/DIV., 1 msec./DIV.
    Condition
    		Idling


    2. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  2. WAVEFORM 2

    1. Air Fuel Ratio Sensor Heater
    ECM Terminal Name
    		Between HA1A and E04 or HA2A and E05
    Tester Range
    		5 V/DIV., 10 msec./DIV.
    Condition
    		Idling


    3. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  3. WAVEFORM 3

    1. Heated Oxygen Sensor
    ECM Terminal Name
    		Between OX1B and E2 or OX2B and E2
    Tester Range
    		0.2 V/DIV., 200 msec./DIV.
    Condition
    		Engine speed maintained at 2500 rpm for 2 minutes after warming up engine
    HINT:
    In the Data List, item O2S B1S2 shows the ECM input values from the heated oxygen sensor.


    4. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  4. WAVEFORM 4

    1. Fuel Injector
    ECM Terminal Name
    		Between #10 (to #60) and E01
    Tester Range
    		30 V/DIV., 20 msec./DIV.
    Condition
    		Idling
    HINT:
    The wavelength becomes shorter as the engine speed increases.


    5. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  5. WAVEFORM 5

    1. Knock Sensor
    ECM Terminal Name
    		Between KNK1 and EKNK or KNK2 and EKN2
    Tester Range
    		1 V/DIV., 1 msec./DIV.
    Condition
    		Engine speed maintained at 4000 rpm after warming up engine
    HINT:
    1. The wavelength becomes shorter as the engine speed increases.
    2. The waveform and amplitude displayed differ slightly depending on the vehicle.


    6. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  6. WAVEFORM 6

    1. Crankshaft Position Sensor and VVT Sensor
    ECM Terminal Name
    		Between NE+ and NE-
    Between VV1+ and VV1-
    Between VV2+ and VV2-
    Tester Range
    		5 V/DIV., 20 msec./DIV.
    Condition
    		Idling
    HINT:
    The wavelength becomes shorter as the engine speed increases.


    7. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  7. WAVEFORM 7

    1. Ignition Coil Signal (IGT and IGF Signal)
    ECM Terminal Name
    		Between IGT (1 to 6) and E1
    Between IGF1 and E1
    Tester Ranges
    		2 V/DIV., 20 msec./DIV.
    Condition
    		Idling
    HINT:
    The wavelength becomes shorter as the engine speed increases.


    8. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  8. WAVEFORM 8

    1. Purge VSV
    ECM Terminal Name
    		Between PRG and E1
    Tester Range
    		10 V/DIV., 20 msec./DIV.
    Condition
    		Idling
    HINT:
    If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.


    9. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  9. WAVEFORM 9

    1. Vehicle Speed Signal
    ECM Terminal Name
    		Between SPD and E1
    Tester Range
    		2 V/DIV., 20 msec./DIV.
    Condition
    		Driving at 20 mph (12 km/h)
    HINT:
    The wavelength becomes shorter as the vehicle speed increases.


    10. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  10. WAVEFORM 10

    1. Throttle Actuator Positive Terminal
    ECM Terminal Name
    		Between M+ and ME01
    Tester Range
    		5 V/DIV., 1 msec./DIV.
    Condition
    		Idling with warm engine
    HINT:
    The duty ratio varies depending on the throttle actuator operation.


    11. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  11. WAVEFORM 11

    1. Throttle Actuator Negative Terminal
    ECM Terminal Name
    		Between M- and ME01
    Tester Range
    		5 V/DIV., 1 msec./DIV.
    Condition
    		Idling with warm engine
    HINT:
    The duty ratio varies depending on the throttle actuator operation.


    12. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  12. WAVEFORM 12

    1. Engine Speed Signal
    ECM Terminal Name
    		Between TACH and E1
    Tester Range
    		5 V/DIV., 10 msec./DIV.
    Condition
    		Idling
    HINT:
    The wavelength becomes shorter as the engine speed increases.