Ecd System Terminals Of Ecm

  1. WAVEFORM 1

  1. WAVEFORM 2

  1. WAVEFORM 3

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  1. WAVEFORM 10

Ecd System -- Terminals Of Ecm



Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm


HINT:
Each ECM terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration above as a reference for the ECM terminals.

Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
BATT (E5-2) - E1 (E6-7)
L - BR
Battery (for measuring the battery voltage and for the ECM memory)
Always
9 to 14 V
IGSW (E4-9) - E1 (E6-7)
B-O - BR
Ignition switch
Ignition switch ON
9 to 14 V
+B (E4-1) - E1 (E6-7)
B - BR
Power source of ECM
Ignition switch ON
9 to 14 V
MREL (E4-8) - E1 (E6-7)
W-G - BR
MAIN relay
Ignition switch ON
9 to 14 V
MREL (E4-8) - E1 (E6-7)
W-G - BR
MAIN relay
10 seconds elapsed after ignition switch OFF
0 to 1.5 V
VC (E7-18) - E2 (E7-28)
R-W - BR
Power source of sensor (specific voltage)
Ignition switch ON
4.5 to 5.5 V
VPA (E4-22) - EPA (E4-28)
W-L - BR-W
Accelerator pedal position sensor (for engine control)
Ignition switch ON, accelerator pedal fully released
0.6 to 1.0 V
VPA (E4-22) - EPA (E4-28)
W-L - BR-W
Accelerator pedal position sensor (for engine control)
Ignition switch ON, accelerator pedal fully depressed
3.0 to 4.6 V
VPA2 (E4-23) - EPA2 (E4-29)
GR-G - BR-Y
Accelerator pedal position sensor (for sensor malfunction detection)
Ignition switch ON, accelerator pedal fully released
1.4 to 1.8 V
VPA2 (E4-23) - EPA2 (E4-29)
GR-G - BR-Y
Accelerator pedal position sensor (for sensor malfunction detection)
Ignition switch ON, accelerator pedal fully depressed
3.7 to 5.0 V
VCPA (E4-26) - EPA (E4-28)
LG-R - BR-W
Power source of accelerator pedal position sensor (for VPA)
Ignition switch ON
4.5 to 5.5 V
VCP2 (E4-27) - EPA2 (E4-29)
BR-R - BR-Y
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch ON
4.5 to 5.5 V
VG (E6-24) - EVG (E6-32)
W-R - B-W
MAF meter
Idling, A/C switch OFF
0.5 to 3.4 V
THA (E7-31) - E2 (E7-28)
Y-B - BR
IAT sensor (built into MAF meter)
Idling, intake air temperature at 20°C (68°F)
0.5 to 3.4 V
THIA (E7-20) - E2 (E7-28)
Y-G - BR
Diesel turbo IAT sensor
Atmospheric air temperature
0.5 to 3.4 V
THW (E7-19) - E2 (E7-28)
R-L - BR
ECT sensor
Idling, engine coolant temperature at 80°C (176°F)
0.2 to 1.0 V
STA (E4-7) - E1 (E6-7)
B-Y - BR*1
L-Y - BR*2
Starter signal
Cranking
6.0 V or more
#1 (E7-24) - E1 (E6-7)
#2 (E7-23) - E1 (E6-7)
#3 (E7-22) - E1 (E6-7)
#4 (E7-21) - E1 (E6-7)
B-W - BR
R - BR
V - BR
Y-R - BR
Injector
Idling
Pulse generation
(see waveform 2)
G+ (E6-23) - G- (E6-31)
Y - L
Camshaft position sensor
Idling
Pulse generation
(see waveform 4)
NE+ (E7-27) - NE- (E7-34)
Y - L
Crankshaft position sensor
Idling
Pulse generation
(see waveform 4)
STP (E5-15) - E1 (E6-7)
G-W - BR
Stop light switch
Ignition switch ON, brake pedal depressed
7.5 to 14 V
STP (E5-15) - E1 (E6-7)
G-W - BR
Stop light switch
Ignition switch ON, brake pedal released
0 to 1.5 V
ST1- (E5-14) - E1 (E6-7)
R-L - BR
Stop light switch
(opposite to STP)
Ignition switch ON, brake pedal depressed
0 to 1.5 V
ST1- (E5-14) - E1 (E6-7)
R-L - BR
Stop light switch
(opposite to STP)
Ignition switch ON, brake pedal released
7.5 to 14 V
TC (E4-11) - E1 (E6-7)
P-B -BR
Terminal TC of DLC3
Ignition switch ON
9 to 14 V
W (E4-12) - E1 (E6-7)
R-B - BR
MIL
MIL illuminated
0 to 3 V
W (E4-12) - E1 (E6-7)
R-B - BR
MIL
MIL not illuminated
9 to 14 V
SPD (E5-17) - E1 (E6-7)
V-R - BR
Speed signal from combination meter
Ignition switch ON, slowly rotate wheel
Pulse generation
(see waveform 8)
SIL (E4-18) - E1 (E6-7)
R-Y - BR
Terminal SIL of DLC3
Connect intelligent tester to LC3
Pulse generation
PIM (E6-28) - E2 (E7-28)
L-B - BR
Manifold absolute pressure sensor
Apply negative pressure of 40 kPa (300 mmHg, 11.8 in.Hg)
1.3 to 1.9 V
PIM (E6-28) - E2 (E7-28)
L-B - BR
Manifold absolute pressure sensor
Same as atmospheric pressure
2.4 to 3.1 V
PIM (E6-28) - E2 (E7-28)
L-B - BR
Manifold absolute pressure sensor
Apply positive pressure of 170 kPa (1,275 mmHg, 50.2 in.Hg)
3.7 to 4.3 V
IREL (E4-10) - E1 (E6-7)
B-W - BR
EDU relay
Ignition switch OFF
9 to 14 V
IREL (E4-10) - E1 (E6-7)
B-W - BR
EDU relay
Idling
0 to 1.5 V
TACH (E4-4) - E1 (E6-7)
B-W - BR
Engine speed
Idling
Pulse generation
PCR1 (E7-26) - E2 (E7-28)
R-Y - BR
Common rail pressure sensor (main)
Idling
1.3 to 1.8 V
GREL (E4-15) - E1 (E6-7)
R - BR
GLOW relay
Cranking
9 to 14 V
GREL (E4-15) - E1 (E6-7)
R - BR
GLOW relay
Idling
0 to 1.5 V
THF (E7-29) - E2 (E7-28)
G-B - BR
Fuel temperature sensor
Ignition switch ON
0.5 to 3.4 V
ALT (E7-8) - E1 (E6-7)
G - BR
Generator (Alternator) duty ratio
Idling
Pulse generation
PCV+ (E7-2) - PCV- (E7-1)
G-W - G-Y
Suction control valve
Idling
Pulse generation
(see waveform 1)
INJF (E7-25) - E1 (E6-7)
P - BR
EDU
Idling
Pulse generation
(see waveform 3)
VNTO (E7-10) - E1 (E6-7)
B-O - BR
Turbo motor driver
Idling
Pulse generation
(see waveform 6)
VNTI (E7-17) - E1 (E6-7)
R-B - BR
Turbo motor driver
Idling
Pulse generation
(see waveform 6)
VLU (E6-29) - E2 (E7-28)
B - BR
Throttle position sensor
Ignition switch ON, throttle valve
fully opened
3.6 to 4.2 V
VLU (E6-29) - E2 (E7-28)
B - BR
Throttle position sensor
Ignition switch ON, throttle valve
fully closed
0.4 to 1.0 V
LUSL (E6-4) - E1 (E6-7)
GR - BR
Diesel throttle duty signal
Engine warmed up, racing engine
Pulse generation
(see waveform 7)
EGR (E6-9) - E1 (E6-7)
L-R - BR
EGR E-VRV
Ignition switch ON
Pulse generation
(see waveform 5)
EGRC (E6-18) - E1 (E6-7)
Y-B - BR
EGR cut VSV
Ignition switch ON, EGR cuts (accelerator pedal fully depressed)
0 to 3 V
CAN+ (E5-22) - E1 (E6-7)*1
V - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform 9)
CAN- (E5-21) - E1 (E6-7)*1
P - BR
CAN communication line
Ignition switch ON
Pulse generation
(see waveform 10)
HINT:
*1: A/T
*2: M/T

WAVEFORM 1
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Suction control valve signal
Item
Content
Symbols (Terminal No.)
PCV+ (E7-2) - PCV- (E7-1)
Tool Setting
10 V/DIV., 5 msec./DIV.
Condition
Idling or cranking with warm engine
HINT:
The waveform varies depending on the suction control valve operation.

WAVEFORM 2
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Injector No. 1 (to No. 4) injection signal
Item
Content
Symbols (Terminal No.)
(a) #1 (E7-24) - E1 (E6-7)
(b) #2 (E7-23) - E1 (E6-7)
(c) #3 (E7-22) - E1 (E6-7)
(d) #4 (E7-21) - E1 (E6-7)
Tool Setting
5 V/DIV., 20 msec./DIV.
Condition
Idling with warm engine
HINT:
The waveform varies depending on the injector injection.

WAVEFORM 3
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Injector injection confirmation signal
Item
Content
Symbols (Terminal No.)
INJF (E7-25) - E1 (E6-7)
Tool Setting
2 V/DIV., 20 msec./DIV.
Condition
Idling with warm engine
HINT:
The waveform varies depending on the injector injection.

WAVEFORM 4
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Crankshaft position sensor signal and Camshaft position sensor signal
Item
Content
Symbols (Terminal No.)
(a) NE+ (E7-27) - NE- (E7-34)
(b) G+ (E6-23) - G- (E6-31)
Tool Setting
5 V/DIV., 20 msec./DIV.
Condition
Idling with warm engine
HINT:
The waveform varies depending on the engine speed.

WAVEFORM 5
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
EGR E-VRV signal
Item
Content
Symbols (Terminal No.)
EGR (E6-9) - E1 (E6-7)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Idling with warm engine
HINT:
The waveform varies depending on the EGR E-VRV operation.

WAVEFORM 6
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Turbo motor driver signal
Item
Content
Symbols (Terminal No.)
(a) VNTO (E7-10) - E1 (E6-7)
(b) VNTI (E7-17) - E1 (E6-7)
Tool Setting
5 V/DIV., 20 msec./DIV.
Condition
Idling with warm engine
HINT:
The waveform varies depending on the turbocharger operation.

WAVEFORM 7
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Diesel throttle signal
Item
Content
Symbols (Terminal No.)
LUSL (E6-4) - E1 (E6-7)
Tool Setting
1 V/DIV., 2 msec./DIV.
Condition
Warm engine with racing engine
HINT:
The waveform varies depending on the throttle valve operation.

WAVEFORM 8
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
Vehicle speed signal
Item
Content
Symbols (Terminal No.)
SPD (E5-17) - E1 (E6-7)
Tool Setting
5 V/DIV., 10 msec./DIV.
Condition
Driving at vehicle speed of 40 km/h (25 mph)
HINT:
The wavelength becomes shorter as the vehicle speed increases.

WAVEFORM 9
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
CAN communication signal
Item
Content
Symbols (Terminal No.)
CAN+ (E5-22) - E1 (E6-7)
Tool Setting
1 V/DIV., 10 msec./DIV.
Condition
Engine is stopped, ignition switch ON
HINT:
The waveform varies depending on the CAN communication signal.

WAVEFORM 10
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System  Terminals Of Ecm
CAN communication signal
Item
Content
Symbols (Terminal No.)
CAN- (E5-21) - E1 (E6-7)
Tool Setting
1 V/DIV., 10 msec./DIV.
Condition
Engine is stopped, ignition switch ON
HINT:
The waveform varies depending on the CAN communication signal.