Sfi System Terminals Of Ecm

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
1Az-Fe Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

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Sfi System -- Terminals Of Ecm



Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System 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.

Symbols (Terminal No.)
Wiring Colors
Terminal Descriptions
Conditions
Specified Conditions
BATT (A12-20) - E1 (B32-104)
W - BR
Battery (for measuring battery voltage and for ECM memory)
Always
9 to 14 V
+B (A12-2) - E1 (B32-104)
B - BR
Power source of ECM
Ignition switch on (IG)
9 to 14 V
+B2 (A12-1) - E1 (B32-104)
B - BR
Power source of ECM
Ignition switch on (IG)
9 to 14 V
+BM (A12-3) - E1 (B32-104)
LG - BR
Power source of throttle actuator
Always
9 to 14 V
IGT1 (B32-85) - E1 (B32-104)
IGT2 (B32-84) - E1 (B32-104)
IGT3 (B32-83) - E1 (B32-104)
IGT4 (B32-82) - E1 (B32-104)
R - BR
P - BR
G - BR
L - BR
Ignition coil
(ignition signal)
Idling
Pulse generation
(see waveform 1)
IGF1 (B32-81) - E1 (B32-104)
W - BR
Ignition coil
(ignition confirmation signal)
Ignition switch on (IG)
4.5 to 5.5 V
Idling
Pulse generation
(see waveform 1)
NE+ (B32-122) - NE- (B32-121)
W - B
Crankshaft position sensor
Idling
Pulse generation
(see waveform 2)
G2+ (B32-99) - G2- (B32-98)
L - Y
Camshaft position sensor
Idling
Pulse generation
(see waveform 2)
#10 (B32-108) - E1 (B32-104)
#20 (B32-107) - E1 (B32-104)
#30 (B32-106) - E1 (B32-104)
#40 (B32-105) - E1 (B32-104)
L - BR
G - BR
B - BR
W - BR
Injector
Ignition switch on (IG)
9 to 14 V
Idling
Pulse generation
(see waveform 3)
HA1A (B32-109) - E04 (B32-46)
L - W-B
A/F sensor heater
Ignition switch on (IG)
9 to 14 V
Idling
Below 3.0 V
A1A+ (B32-112) - E1 (B32-104)
G - BR
A/F sensor
Idling
Below 3.3 V*1
A1A- (B32-113) - E1 (B32-104)
R - BR
A/F sensor
Idling
Below 3.0 V*1
HT1B (B32-47) - E03 (B32-86)
R - W-B
Heated oxygen sensor heater
Ignition switch on (IG)
9 to 14 V
Idling
Below 3.0 V
OX1B (B32-64) - EX1B (B32-87)
B - BR
Heated oxygen sensor
Engine speed maintained at 2,500 rpm for 2 minutes after warming up sensor
Pulse generation
(see waveform 4)
KNK1 (B32-110) - EKNK (B32-111)
B - W
Knock sensor
Engine speed maintained at 4,000 after warming up engine
Pulse generation
(see waveform 5)
SPD (A12-8) - E1 (B32-104)
V - BR
Speed signal from combination meter
Driving at 20 km/h (12 mph)
Pulse generation
(see waveform 6)
THW (B32-97) - ETHW (B32-96)
GR - BR
Engine coolant temperature sensor
Idling, Engine coolant temperature 80°C (176°F)
0.2 to 1.0 V
THA (B32-65) - ETHA (B32-88)
W - BR
Intake air temperature sensor
Idling, Intake air temperature 20°C (68°F)
0.5 to 3.4 V
VG (B32-118) - E2G (B32-116)
R - LG
Mass air flow meter
Idling, Shift lever position P or N, A/C switch OFF
0.5 to 3.0 V
W (A12-24) - E1 (B32-104)
R - BR
MIL
Ignition switch on (IG) (MIL goes off)
Below 3.0 V
Idling
9 to 14 V
STA (A12-48) - E1 (B32-104)
LG - BR
Starter signal
Cranking
5.5 V or more
VTA1 (B32-115) - ETA (B32-91)
G - BR
Throttle position sensor (for engine control)
Ignition switch on (IG), Throttle valve fully closed
0.5 to 1.2 V
Ignition switch on (IG), Throttle valve fully open
3.2 to 4.8 V
VTA2 (B32-114) - ETA (B32-91)
L - BR
Throttle position sensor (for sensor malfunction detection)
Ignition switch on (IG), Accelerator pedal released
2.1 to 3.1 V
Ignition switch on (IG), Accelerator pedal depressed
4.5 to 5.5 V
VCTA (B32-67) - ETA (B32-91)
Y - BR
Power source of sensor (specific voltage)
Ignition switch on (IG)
4.5 to 5.5 V
VCPA (A12-57) - EPA (A12-59)
B - Y
Power source of accelerator pedal position sensor (for VPA)
Ignition switch on (IG)
4.5 to 5.5 V
VPA (A12-55) - EPA (A12-59)
W - Y
Accelerator pedal position sensor (for engine control)
Ignition switch on (IG), Accelerator pedal released
0.5 to 1.1 V
Ignition switch on (IG), Accelerator pedal fully depressed
2.6 to 4.5 V
VPA2 (A12-56) - EPA2 (A12-60)
R - P
Accelerator pedal position sensor (for sensor malfunctioning detection)
Ignition switch on (IG), Accelerator pedal released
1.2 to 2.0 V
Ignition switch on (IG), Accelerator pedal fully depressed
3.4 to 5.0 V
VCP2 (A12-58) - EPA2 (A12-60)
L - P
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch on (IG)
4.5 to 5.0 V
M+ (B32-42) - ME01 (B32-43)
B - W-B
Throttle actuator
Idling with warm engine
Pulse generation
(see waveform 7)
M- (B32-41) - ME01 (B32-43)
W - W-B
Throttle actuator
Idling with warm engine
Pulse generation
(see waveform 8)
STP (A12-36) - E1 (B32-104)
L - BR
Stop light switch
Brake pedal depressed
9 to 14 V
Brake pedal released
Below 1.5 V
ST1- (A12-35) - E1 (B32-104)
GR - BR
Stop light switch
Ignition switch on (IG), Brake pedal depressed
Below 1.5 V
Ignition switch on (IG), Brake pedal released
9 to 14 V
PRG (B32-49) - E1 (B32-104)
G - BR
Purge VSV
Ignition switch on (IG)
9 to 14 V
Idling
Pulse generation
(see waveform 9)
FC (A12-7) - E1 (B32-104)
W - BR
Fuel pump control
Ignition switch on (IG)
9 to 14 V
Idling
Below 1.5 V
TACH (A12-15) - E1 (B32-104)
GR - BR
Engine speed
Idling
Pulse generation
(see waveform 10)
TC (A12-27) - E1 (B32-104)
G - BR
Terminal TC of DLC3
Ignition switch on (IG)
9 to 14 V
OC1+ (B32-100) - OC1- (B32-123)
BR - L
Camshaft timing oil control valve (OCV)
Idling
Pulse generation
(see waveform 11)
CANH (A12-41) - E1 (B32-104)
Y - BR
CAN communication line
Ignition switch on (IG)
Pulse generation
(see waveform 12)
CANL (A12-49) - E1 (B32-104)
W - BR
CAN communication line
Ignition switch on (IG)
Pulse generation
(see waveform 13)
ELS1 (A12-31) - E1 (B32-104)
P - BR
Electric load
Taillight switch on
7.5 to 14 V
Taillight switch off
Below 1.5 V
ELS3 (A12-33) - E1 (B32-104)
G - BR
Electric load
Defogger switch on
7.5 to 14 V
Defogger switch off
Below 1.5 V
FANL (A12-21) - E1 (B32-104)
R - BR
FAN NO. 3 relay
Ignition switch on (IG)
9 to 14 V
Idling with A/C ON
or
High engine coolant temperature
Below 1.5 V
FANH (A12-22) - E1 (B32-104)
W - BR
FAN NO. 1, 2 relay
Idling with high engine coolant temperature
Below 1.5 V
ALT (B32-50) - E1 (B32-104)
B - BR
Generator
Ignition switch on (IG)
9 to 14 V
IGSW (A12-28) - E1 (B32-104)
B - BR
Ignition switch
Ignition switch on (IG)
9 to 14 V
MREL (A12-44) - E1 (B32-104)
P - BR
EFI MAIN relay
Ignition switch on (IG)
9 to 14 V
ACCR (A12-13)*2 - E1 (B32-104)
LG - BR
Accessory power cut signal
Ignition switch on (IG) → Cranking
Below 1.5 V
STSW (A12-14)*2 - E1 (B32-104)
R - BR
Engine cranking required signal
Ignition switch on (IG) → Cranking
Below 1 V → 9 to 14 V momentary
STAR (B32-52) - E1 (B32-104)
W - BR
ST relay control
Cranking
9 to 14 V
VCIB (B32-69) - EIB (B32-92)
R - BR
Battery current sensor
Ignition switch on (IG)
4.5 to 5.0 V
IB (B32-68) - EIB (B32-92)
B - BR
Battery current sensor
Ignition switch on (IG)
0.5 to 4.5 V
THB (B32-120) - EIB (B32-92)
LG - BR
Battery temperature sensor
Ignition switch on (IG)
0.5 to 4.5 V
  1. *1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
  2. *2: w/ Entry and Start system

WAVEFORM 1
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Igniter IGT signal (from ECM to igniter)
ECM Terminal Name
Between IGT (1 to 4) and E1
Between IGF1 and E1
Tester Range
2 V/DIV., 20 msec./DIV.
Condition
Idling
HINT:
The wavelength becomes shorter as the engine rpm increases.

WAVEFORM 2
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Crankshaft position sensor and Camshaft position sensor
ECM Terminal Name
CH1: Between G2+ and G2-
CH2: Between NE+ and NE-
Tester Range
5 V/DIV., 20 msec./DIV.
Condition
Idle after engine warmed-up
HINT:
The wavelength becomes shorter as the engine rpm increases.

WAVEFORM 3
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Injector No. 1 (to No. 4) injector signal
ECM Terminal Name
Between #10 (to #40) and E1
Tester Range
20 V/DIV., 20 msec./DIV.
Condition
Idling
HINT:
The wavelength becomes shorter as the engine rpm increases.

WAVEFORM 4
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Heated oxygen sensor (bank 1 sensor 2)
ECM Terminal Name
Between OX1B and EX1B
Tester Range
0.2 V/DIV., 200 msec./DIV.
Condition
Maintain engine speed at 2,500rpm for 2 minutes after warming up sensor
HINT:
In the Data List, the items O2S B1 S2 show the ECM input values of the heated oxygen sensor.

WAVEFORM 5
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Knock sensor
ECM Terminal Name
Between KNK1 and EKNK
Tester Range
1 V/DIV., 1 msec./DIV.
Condition
Maintain engine RPM at 4,000 rpm after engine warmed-up
HINT:
  1. The wavelength becomes shorter as engine rpm increases.
  2. The waveforms and amplitudes displayed differ slightly depending on the vehicle.

WAVEFORM 6
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Vehicle speed signal
ECM Terminal Name
Between SPD and E1
Tester Range
5 V/DIV., 20 msec./DIV.
Condition
Rotate driving wheel slowly
HINT:
The wavelength becomes shorter as the vehicle speed increases.

WAVEFORM 7
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Throttle actuator positive terminal
ECM Terminal Name
Between M+ and ME01
Tester Range
5 V/DIV., 1 msec./DIV.
Condition
Idle after engine warmed-up
HINT:
The duty ratio varies depending on the throttle actuator operation.

WAVEFORM 8
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Throttle actuator negative terminal
ECM Terminal Name
Between M- and ME01
Tester Range
5 V/DIV., 1 msec./DIV.
Condition
Idle after engine warmed-up
HINT:
The duty ratio varies depending on the throttle actuator operation.

WAVEFORM 9
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Purge VSV
ECM Terminal Name
Between PRG and E1
Tester Range
5 V/DIV., 50 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.

WAVEFORM 10
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
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 rpm increases.

WAVEFORM 11
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Camshaft timing oil control valve (OCV)
ECM Terminal Name
Between OC1+ and OC1-
Tester Range
5 V/DIV., 1 msec./DIV.
Condition
Idling

WAVEFORM 12
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
CAN communication signal
ECM Terminal Name
Between CANH and E1
Tester Range
1 V/DIV., 10 μsec./DIV.
Condition
Engine stop and ignition switch on (IG)
HINT:
The waveform varies depending on the CAN communication signal.

WAVEFORM 13
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm
CAN communication signal
ECM Terminal Name
Between CANL and E1
Tester Range
1 V/DIV., 10 μsec./DIV.
Condition
Engine stop and ignition switch on (IG)
HINT:
The waveform varies depending on the CAN communication signal.