Sfi System Terminals Of Ecm

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Sfi System -- Terminals Of Ecm



Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm


*A
for Automatic Transmission Models
*B
for Manual Transmission Models
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 STD Voltages column. The illustration above can be used as a reference to identify the ECM terminal locations.

Terminal No. (Symbol)
Wiring Color
Terminal Descriptions
Conditions
STD Voltages
G180-3 (BATT) - C153-3 (E1)
L - BR
Battery (for measuring the battery voltage and for the ECM memory)
Always
11 to 14 V
C153-5 (+BM) - C153-3 (E1)
PL - BR
Power source of throttle actuator
Always
11 to 14 V
G180-8 (IGSW) - C153-3 (E1)
W - BR
Ignition switch signal
Ignition switch ON
11 to 14 V
G180-1 (+B) - C153-3 (E1)
W - BR
Power source of ECM
Ignition switch ON
11 to 14 V
G180-2 (+B2) - C153-3 (E1)
W - BR
Power source of ECM
Ignition switch ON
11 to 14 V
C153-11 (OC1+) - C153-10 (OC1-)
G-Y - L-B
Camshaft timing oil control valve assembly operation signal (for intake side)
Idling
Pulse generation
(See waveform 1)
C153-9 (OE1+) - C153-8 (OE1-)
G - L
Camshaft timing oil control valve assembly operation signal (for exhaust side)
Idling
Pulse generation
(See waveform 2)
G181-6 (MREL) - C153-3 (E1)
V - BR
EFI-MAIN relay operation signal
Ignition switch ON
11 to 14 V
C154-24 (VG) - C154-32 (E2G)
W-R - B-W
Mass air flow meter sub-assembly signal
Idling, Shift position P or N, A/ C switch OFF
0.5 to 3.0 V
C154-23 (THA) - C154-32 (E2G)
Y-B - B-W
Intake air temperature sensor signal
Idling, intake air temperature 20°C (68°F)
0.5 to 3.4 V
C154-22 (THW) - C154-30 (ETHW)
R-L - L-B
Engine coolant temperature sensor signal
Idling, engine coolant temperature 80°C (176°F)
0.2 to 1.0 V
C153-29 (VCTA) - C153-28 (ETA)
B-W
Power source of throttle position sensor (specific voltage)
Ignition switch ON
4.5 to 5.5 V
C153-30 (VTA1) - C153-28 (ETA)
LG - W
Throttle position sensor signal (for engine control)
Ignition switch ON, accelerator pedal fully released
0.5 to 1.1 V
Ignition switch ON, accelerator pedal fully depressed
3.2 to 4.8 V
C153-18 (VTA2) - C153-28 (ETA)
G-W - W
Throttle position sensor signal (for sensor malfunction detection)
Ignition switch ON, accelerator pedal fully released
2.1 to 3.1 V
Ignition switch ON, accelerator pedal fully depressed
4.6 to 5.0 V
G180-26 (VPA) - G180-27 (EPA)
L - P
Accelerator pedal position sensor signal (for engine control)
Ignition switch ON, accelerator pedal fully released
0.5 to 1.1 V
Ignition switch ON, accelerator pedal fully depressed
2.6 to 4.5 V
G180-28 (VPA2) - G180-29 (EPA2)
GR - W
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch ON, accelerator pedal fully released
1.2 to 2.0 V
Ignition switch ON, accelerator pedal fully depressed
3.4 to 4.75 V
G180-20 (VCPA) - G180-27 (EPA)
LG - P
Power source of accelerator pedal position sensor (for VPA)
Ignition switch ON
4.5 to 5.5 V
G180-22 (VCP2) - G180-29 (EPA2)
R - W
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch ON
4.5 to 5.5 V
C154-6 (HA1A) - C154-5 (E04)
R-L - BR
Air fuel ratio sensor heater operation signal
Idling
Pulse generation
(See waveform 3)
Ignition switch ON
11 to 14 V
C154-26 (A1A+) - C153-3 (E1)
P - BR
Air fuel ratio sensor signal
Ignition switch ON
3.3 V*1
C154-34 (A1A-) - C153-3 (E1)
L - BR
Air fuel ratio sensor signal
Ignition switch ON
2.9 V*1
C154-7 (HT1B) - C154-5 (E04)
L-R - BR
Heated oxygen sensor heater operation signal
Idling
Below 3.0 V
Ignition switch ON
11 to 14 V
C154-27 (OX1B) - C154-35 (EX1B)
W - B
Heated oxygen sensor signal
Engine speed maintained at 2500 rpm for 2 minutes after warming up engine
Pulse generation
(See waveform 4)
C154-4 (#10) - C153-1 (E01)
L - W-B
fuel injector assembly signal
Ignition switch ON
11 to 14 V
C154-3 (#20) - C153-1 (E01)
G - W-B
C154-2 (#30) - C153-1 (E01)
R - W-B
Idling
Pulse generation
(See waveform 5)
C154-1 (#40) - C153-1 (E01)
W - W-B
C154-20 (KNK1) - C154-28 (EKNK)
B-W
Knock control sensor signal
Engine speed maintained at 4000 rpm after warming up engine
Pulse generation
(See waveform 6)
C153-23 (VV1+) - C153-22 (VV1-)
B - G
Camshaft position sensor signal (for intake side)
Idling with warm engine
Pulse generation
(See waveform 7)
C153-24 (EV1+) - C153-32 (EV1-)
G-B - R-W
Camshaft position sensor signal (for exhaust side)
Idling with warm engine
Pulse generation
(See waveform 7)
C153-27 (NE+) - C153-34 (NE-)
W -B
Crankshaft position sensor signal
Idling with warm engine
Pulse generation
(See waveform 8)
C153-16 (IGT1) - C153-3 (E1)
R-Y - BR
Ignition coil assembly
(ignition signal)
Idling
Pulse generation
(See waveform 9)
C153-15 (IGT2) - C153-3 (E1)
R-L - BR
C153-14 (IGT3) - C153-3 (E1)
G-B - BR
C153-13 (IGT4) - C153-3 (E1)
G-W - BR
C153-12 (IGF1) - C153-3 (E1)
G-R - BR
Ignition coil assembly (ignition confirmation signal)
Ignition switch ON
4.5 to 5.5 V
Idling
Pulse generation
(See waveform 9)
C154-13 (PRG) - C153-1 (E01)
P - W-B
Purge VSV operation signal
Ignition switch ON
11 to 14 V
Idling, under purge control
Pulse generation
(See waveform 10)
G181-23 (SPD) - C153-3 (E1)
R - BR
Vehicle speed signal from combination meter assembly
Driving at 20 km/h (12 mph)
Pulse generation
(See waveform 11)
C154-17 (STA) - C153-3 (E1)
W - BR
Starter signal
Shift position N, ignition switch START
5.5 V or higher
C154-8 (PSW) - C153-3 (E1)
G - BR
Power steering oil pressure switch
While turning steering wheel
Below 1.5 V
C154-15 (NSW)*2 - C153-3 (E1)
B - BR
Park/neutral position switch assembly signal
Ignition switch ON, shift lever not in P or N
11 to 14 V
Ignition switch ON, shift lever in P or N
Below 3.0 V
G180-10 (STP) - C153-3 (E1)
V - BR
Stop light switch assembly signal
Brake pedal depressed
7.5 to 14 V
Brake pedal released
Below 1.5 V
G180-11 (ST1-) - C153-3 (E1)
B - BR
Stop light switch assembly signal (opposite to voltage at STP terminal)
Ignition switch ON, brake pedal depressed
Below 1.5 V
Ignition switch ON, brake pedal released
7.5 to 14 V
C153-7 (M+) - C153-4 (ME01)
P - W-B
Throttle actuator operation signal (positive terminal)
Idling with warm engine
Pulse generation
(See waveform 12)
C153-6 (M-) - C153-4 (ME01)
L - W-B
Throttle actuator operation signal (negative terminal)
Idling with warm engine
Pulse generation
(See waveform 13)
G181-5 (FC) - C153-1 (E01)
G - W-B
Fuel pump control
Ignition switch ON
11 to 14 V
G180-19 (TC) - C153-3 (E1)
V - BR
Terminal TC of DLC3
Ignition switch ON
11 to 14 V
G181-11 (TACH) - C153-3 (E1)
P - BR
Engine speed
Idling
Pulse generation
(See waveform 14)
C153-21 (VCV1) - C153-3 (E1)
L-W - BR
Power source of camshaft position sensor (for intake side) (specific voltage)
Ignition switch ON
4.5 to 5.5 V
C153-31 (VCE1) - C153-3 (E1)
P-L - BR
Power source of camshaft position sensor (for exhaust side) (specific voltage)
Ignition switch ON
4.5 to 5.5 V
G181-13 (CANH) - C153-3 (E1)
LG - BR
CAN communication line
Ignition switch ON
Pulse generation
(See waveform 15)
G181-14 (CANL) - C153-3 (E1)
W - BR
CAN communication line
Ignition switch ON
Pulse generation
(See waveform 16)
G180-5 (AIRV) - C153-3 (E1)
P - BR
Air switching valve for secondary air injection system
Ignition switch ON
11 to 14 V
G180-6 (AIRP) - C153-3 (E1)
GR - BR
Air pump control
Ignition switch ON
11 to 14 V
G181-20 (AIDI) - C153-3 (E1)
G - BR
Diagnostic information signal for secondary air injection system
Secondary air injection system operates
Pulse generation
(See waveform 17)
C153-20 (VCAI) - C153-25 (EAIP)
W - B
Power source of air pressure sensor (specific voltage)
Ignition switch ON
4.5 to 5.0 V
C153-26 (AIP) - C153-25 (EAIP)
R - B
Air pressure sensor
Ignition switch ON
0.5 to 4.5 V
G180-16 (NEO)*3 - C153-3(E1)
P - BR
Crankshaft position sensor signal sent to certification ECU (smart key ECU assembly)
Idling with warm engine
Pulse generation
(See waveform 18)
G181-4 (HAI1) - C153-3 (E1)
W - BR
Air pump heater for secondary air injection system
Air pump heater operating
11 to 14 V
*1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
*2: for Automatic Transmission Models.
*3: w/ Entry and Start System.

WAVEFORM 1


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Camshaft Timing Oil Control Valve Assembly (for Intake Side) Operation Signal

    ECM Terminal Names
    		Between OC1+ and OC1-
    Tester Ranges
    		5 V/DIV., 1 ms./DIV.
    Conditions
    		Idling

WAVEFORM 2


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Camshaft Timing Oil Control Valve Assembly (for Exhaust Side) Operation Signal

    ECM Terminal Names
    		Between OE1+ and OE1-
    Tester Ranges
    		5 V/DIV., 1 ms./DIV.
    Conditions
    		Idling

WAVEFORM 3


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Air Fuel Ratio Sensor (Sensor 1) Heater Operation Signal

    ECM Terminal Names
    		Between HA1A and E04
    Tester Ranges
    		5 V/DIV., 10 ms./DIV.
    Conditions
    		Idling
    HINT:
    The wavelength varies in accordance with the engine operating condition.

WAVEFORM 4


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Heated Oxygen Sensor (Sensor 2) Signal

    ECM Terminal Names
    		Between OX1B and EX1B
    Tester Ranges
    		0.2 V/DIV., 200 ms./DIV.
    Conditions
    		Engine speed maintained at 2500 rpm for 2 minutes after warming up engine
    HINT:
    In the Data List, the item O2S B1S2 shows the values input to the ECM from the heated oxygen sensor.

WAVEFORM 5


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. No. 1 (to No. 4) Fuel Injector Assembly Signal

    ECM Terminal Names
    		Between #10 (to #40) and E01
    Tester Ranges
    		20 V/DIV., 20 ms./DIV.
    Conditions
    		Idling
    HINT:
    The wavelength becomes shorter as the engine speed increases.

WAVEFORM 6


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Knock Control Sensor Signal

    ECM Terminal Names
    		Between KNK1 and EKNK
    Tester Ranges
    		1 V/DIV., 1 ms./DIV.
    Conditions
    		Engine speed maintained at 4000 rpm after warming up engine
    HINT:
    1. The wavelength becomes shorter as the engine speed increases.
    2. The waveforms and amplitudes displayed differ slightly depending on the vehicle condition.

WAVEFORM 7


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Camshaft Position Sensor Signal (for Intake and Exhaust Side)

    ECM Terminal Names
    		CH1: Between VV1+ and VV1-
    CH2: Between EV1+ and EV1-
    Tester Ranges
    		5 V/DIV., 20 ms./DIV.
    Conditions
    		Idling
    HINT:
    1. The wavelength becomes shorter as the engine speed increases.
    2. The waveforms and amplitudes displayed differ slightly depending on the vehicle.
    HINT:
    The wavelength becomes shorter as the engine speed increases.

WAVEFORM 8


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Crankshaft Position Sensor Signal

    ECM Terminal Names
    		Between NE+ and NE
    Tester Ranges
    		5 V/DIV., 20 ms./DIV.
    Conditions
    		idling
    1. The wavelength becomes shorter as the engine speed increases.

WAVEFORM 9


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Ignition Coil Assembly Signal (IGT and IGF Signal)

    ECM Terminal Names
    		(a): Between IGT (1 to 4) and E1
    (b): Between IGF1 and E1
    Tester Ranges
    		2 V/DIV., 20 ms./DIV.
    Conditions
    		idling
    HINT:
    The wavelength becomes shorter as the engine speed increases.

WAVEFORM 10


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Purge VSV Signal

    ECM Terminal Names
    		Between PRG and E01
    Tester Ranges
    		10 V/DIV., 20 ms./DIV.
    Conditions
    		Idling, under purge control
    HINT:
    If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.

WAVEFORM 11


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Vehicle speed signal

    ECM Terminal Names
    		Between SPD and E1
    Tester Ranges
    		5 V/DIV, 20 msec./DIV
    Conditions
    		Driving at 20 km/h (12 mph)
    HINT:
    The wavelength becomes shorter as the vehicle speed increases.

WAVEFORM 12


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Throttle Actuator Positive Terminal Signal

    ECM Terminal Names
    		Between M+ and ME01
    Tester Ranges
    		5 V/DIV., 1 ms./DIV.
    Conditions
    		Idling with warm engine
    The duty ratio varies depending on the throttle actuator operation.

WAVEFORM 13


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Throttle Actuator Negative Terminal Signal

    ECM Terminal Names
    		Between M- and ME01
    Tester Ranges
    		5 V/DIV., 1 ms./DIV.
    Conditions
    		Idling with warm engine
    The duty ratio varies depending on the throttle actuator operation.

WAVEFORM 14


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Engine Speed Signal

    ECM Terminal Names
    		Between TACH and E1
    Tester Ranges
    		5 V/DIV., 10 ms./DIV.
    Conditions
    		Idling
    HINT:
    1. The wavelength becomes shorter as the engine speed increases.

WAVEFORM 15


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. CAN Communication Signal (Reference)

    ECM Terminal Names
    		Between CANH and E1
    Tester Ranges
    		1 V/DIV., 10 μs./DIV.
    Conditions
    		Ignition switch ON
    HINT:
    The waveform varies depending on the CAN communication signal.

WAVEFORM 16


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. CAN Communication Signal (Reference)

    ECM Terminal Names
    		Between CANL and E1
    Tester Ranges
    		1 V/DIV., 10 μs./DIV.
    Conditions
    		Ignition switch ON
    HINT:
    The waveform varies depending on the CAN communication signal.

WAVEFORM 17


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Terminal DI of Air Injection Control Driver

    ECM Terminal Names
    		Between AIDI and E1
    Tester Ranges
    		5 V/DIV., 50 ms./DIV.
    Conditions
    		Performing Active Test using GTS
    (secondary air injection system)

WAVEFORM 18


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.2Tr-Fe Engine Control.Sfi System.Sfi System Terminals Of Ecm

  1. Crankshaft Position Sensor Signal

    ECM Terminal Names
    		Between NEO and E1
    Tester Ranges
    		2 V/DIV., 2 ms./DIV.
    Conditions
    		Idling with warm engine
    HINT:
    The waveform varies depending on the CAN communication signal.