Sfi System Terminals Of Ecm

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
3Zr-Fae 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, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm

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
A12-20 (BATT) - B32-105 (E1)
W - BR
Battery (for measuring battery voltage and for ECM memory)
Always
11 to 14 V
A12-2 (+B) - B32-105 (E1)
B - BR
Power source of ECM
Ignition switch ON
11 to 14 V
A12-1 (+B2) - B32-105 (E1)
B - BR
Power source of ECM
Ignition switch ON
11 to 14 V
A12-3 (+BM) - B32-105 (E1)
LG - BR
Power source of throttle actuator
Always
11 to 14 V
B32-109 (IGT1) - B32-105 (E1)
R - BR
Ignition coil
(ignition signal)
Idling with warm engine
Pulse generation
(See waveform 1)
B32-108 (IGT2) - B32-105 (E1)
P - BR
B32-107 (IGT3) - B32-105 (E1)
G - BR
B32-106 (IGT4) - B32-105 (E1)
L - BR
B32-82 (IGF1) - B32-105 (E1)
W - BR
Ignition coil
(ignition confirmation signal)
Ignition switch ON
4.5 to 5.5 V
Idling with warm engine
Pulse generation
(See waveform 1)
B32-93 (NE+) - B32-117 (NE-)
W - B
Crankshaft position sensor
Idling with warm engine
Pulse generation
(See waveform 2)
B32-94 (G2+) - B32-118 (G2-)
B - R
Variable valve timing (VVT) sensor (intake side)
Idling with warm engine
Pulse generation
(See waveform 2)
B32-86 (#10) - B32-46 (E01)
L - W-B
Injector
Ignition switch ON
11 to 14 V
B32-85 (#20) - B32-46 (E01)
G - W-B
Idling with warm engine
Pulse generation
(See waveform 3)
B32-84 (#30) - B32-46 (E01)
B - W-B
B32-83 (#40) - B32-46 (E01)
W - W-B
B32-104 (HA1A) - B32-41 (E04)
L - W-B
Air fuel ratio sensor heater (sensor 1)
Ignition switch ON
11 to 14 V
Idling before air fuel ratio sensor warms up
Pulse generation
(See waveform 15)
B32-103 (A1A+) - B32-105 (E1)
G - BR
Air fuel ratio sensor (sensor 1)
Ignition switch ON
3.3 V*1
B32-126 (A1A-) - B32-105 (E1)
R - BR
Air fuel ratio sensor (sensor 1)
Ignition switch ON
3.0 V*1
B32-63 (HT1B) - B32-81 (E03)
R - W-B
Heated oxygen sensor heater (sensor 2)
Ignition switch ON
11 to 14 V
Idling
Below 3.0 V
B32-80 (OX1B) - B32-79 (O1B-)
W - B
Heated oxygen sensor (sensor 2)
Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor
Pulse generation
(See waveform 4)
B32-110 (KNK1) - B32-111 (EKNK)
B - W
Knock sensor
Engine speed maintained at 4000 rpm after warming up engine
Pulse generation
(See waveform 5)
A12-38 (SPD) - B32-105 (E1)
V - BR
Speed signal from combination meter
Vehicle being driven at approximately 20 km/h (12 mph)
Pulse generation
(See waveform 6)
B32-64 (THW) - B32-65 (ETHW)
GR - BR
Engine coolant temperature sensor
Idling, engine coolant temperature 80°C (176°F)
0.2 to 1.0 V
B32-87 (THA) - B32-88 (ETHA)
W - BR
Intake air temperature sensor
Idling, intake air temperature 20°C (68°F)
0.5 to 3.4 V
B32-69 (VG) - B32-92 (E2G)
R - LG
Mass air flow meter
Idling, shift lever in P or N (for CVT) or neutral (for Manual Transaxle), air conditioner OFF
0.5 to 3.0 V
A12-24 (W) - B32-105 (E1)
R - BR
MIL
Ignition switch ON (MIL goes off)
Below 3.0 V
Idling
11 to 14 V
A12-48 (STA) - B32-105 (E1)
LG - BR
Starter signal
Cranking
5.5 V or higher
B32-113 (VTA1) - B32-90 (ETA)
G - BR
Throttle position sensor (for engine control)
Ignition switch ON, throttle valve fully closed
0.5 to 1.1 V
Ignition switch ON, throttle valve fully open
3.2 to 4.8 V
B32-112 (VTA2) - B32-90 (ETA)
L - BR
Throttle position sensor (for sensor malfunction detection)
Ignition switch ON, throttle valve fully closed
2.1 to 3.1 V
Ignition switch ON, throttle valve fully open
4.6 to 5.0 V
B32-89 (VCTA) - B32-90 (ETA)
Y - BR
Power source for throttle position sensor (fixed voltage)
Ignition switch ON
4.5 to 5.5 V
A12-57 (VCPA) - A12-59 (EPA)
B - Y
Power source of accelerator pedal position sensor (for VPA)
Ignition switch ON
4.5 to 5.5 V
A12-55 (VPA) - A12-59 (EPA)
W - Y
Accelerator pedal position sensor (for engine control)
Ignition switch ON, accelerator pedal released
0.5 to 1.1 V
Ignition switch ON, accelerator pedal fully depressed
2.6 to 4.5 V
A12-56 (VPA2) - A12-60 (EPA2)
R - P
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 fully depressed
3.4 to 5.0 V
A12-58 (VCP2) - A12-60 (EPA2)
L - P
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch ON
4.5 to 5.0 V
B32-43 (M+) - B32-44 (ME01)
B - W-B
Throttle actuator
Idling with warm engine
Pulse generation
(See waveform 7)
B32-42 (M-) - B32-44 (ME01)
W - W-B
Throttle actuator
Idling with warm engine
Pulse generation
(See waveform 8)
A12-36 (STP) - B32-105 (E1)
L - BR
Stop light switch
Brake pedal depressed
11 to 14 V
Brake pedal released
Below 1.5 V
A12-35 (ST1-) - B32-105 (E1)
GR - BR
Stop light switch
Ignition switch ON, brake pedal depressed
Below 1.5 V
Ignition switch ON, brake pedal released
11 to 14 V
B32-62 (PRG) - B32-105 (E1)
G - BR
Purge VSV
Ignition switch ON
11 to 14 V
Idling with warm engine
Pulse generation
(See waveform 9)
A12-19 (FC) - B32-105 (E1)
W - BR
Fuel pump control
Ignition switch ON
11 to 14 V
Idling
Below 1.5 V
A12-15 (TACH) - B32-105 (E1)
GR - BR
Engine speed
Idling with warm engine
Pulse generation
(See waveform 10)
A12-41 (TC) - B32-105 (E1)
G - BR
Terminal TC of DLC3
Ignition switch ON
11 to 14 V
B32-74 (OC1+) - B32-96 (OC1-)
W - B
Camshaft timing oil control valve (for Intake Side)
Idling with warm engine
Pulse generation
(See waveform 11)
A12-8 (CANH) - B32-105 (E1)
Y - BR
CAN communication line
Ignition switch ON with engine stopped
Pulse generation
(See waveform 12)
A12-9 (CANL) - B32-105 (E1)
W - BR
CAN communication line
Ignition switch ON with engine stopped
Pulse generation
(See waveform 13)
A12-27 (IGSW) - B32-105 (E1)
B - BR
Ignition switch
Ignition switch ON
11 to 14 V
A12-44 (MREL) - B32-105 (E1)
P - BR
EFI MAIN relay
Ignition switch ON
11 to 14 V
B32-75 (OE1+) - B32-97 (OE1-)
R - LG
Camshaft timing oil control valve (for Exhaust Side)
Idling with warm engine
Pulse generation
(See waveform 14)
B32-98 (EV1+) - B32-120 (EV1-)
B - R
Variable valve timing (VVT) sensor (exhaust side)
Idling with warm engine
Pulse generation
(See waveform 2)
B32-119 (VCV1) - B32-105 (E1)
W - BR
Power source for camshaft position sensor (fixed voltage)
Ignition switch ON
4.5 to 5.5 V
B32-121 (VCE1) - B32-105 (E1)
W - BR
Power source for camshaft position sensor (fixed voltage)
Ignition switch ON
4.5 to 5.5 V
A12-31 (ELS1) - B32-105 (E1)
G - BR
Electric load
Taillight switch on
7.5 to 14 V
Taillight switch off
Below 1.5 V
A12-50 (ELS2) - B32-105 (E1)
P - BR
Electric load
Defogger switch on
7.5 to 14 V
Defogger switch off
Below 1.5 V
A12-21 (FANL) - B32-105 (E1)
R - BR
FAN NO. 3 relay
Ignition switch ON
11 to 14 V
Idling with A/C ON or high engine coolant temperature
Below 1.5 V
A12-22 (FANH) - B32-105 (E1)
W - BR
FAN NO. 1, 2 relay
Idling with high engine coolant temperature
Below 1.5 V
B32-38 (ACIS) - B32-105 (E1)
R - BR
Intake air control valve actuator
Ignition switch ON
11 to 14 V
B32-67 (VCPM) - B32-105 (E1)
R - BR
Power source for vacuum sensor (fixed voltage)
Ignition switch ON
4.5 to 5.5 V
B32-114 (PIM) - B32-91 (EPIM)
G - BR
Vacuum sensor
Vacuum of 67 kPa (500 mmHg) applied
1.3 to 1.9 V
No vacuum applied
3.3 to 3.9 V
B32-95 (VCPT) - B32-105 (E1)*2
R - BR
Power source for oil pressure sensor (fixed voltage)
Ignition switch ON
4.5 to 5.5 V
B32-73 (PTO) - B32-91 (EPTO)*2
B - W
Oil pressure sensor
Idling and shift lever in P
0.8 to 1.2 V
B32-52 (ALT) - B32-105 (E1)
B - BR
Generator
Ignition switch ON
11 to 14 V
A12-37 (SDWN) - B32-105 (E1)
G - BR
Continuously variable valve lift controller
Ignition switch ON
11 to 14 V
A12-4 (CAN+) - B32-105 (E1)
Y - BR
CAN communication line
Ignition switch ON with engine stopped
Pulse generation
(See waveform 12)
A12-5 (CAN-) - B32-105 (E1)
W - BR
CAN communication line
Ignition switch ON with engine stopped
Pulse generation
(See waveform 13)
A12-29 (STSW)*3 - B32-105 (E1)
R - BR
Engine cranking required signal
Ignition switch ON → Cranking
Below 1 V → 9 to 14 V momentarily
B32-51 (STAR)*3 - B32-105 (E1)
W - BR
Starter relay control
Cranking
9 to 14 V
B32-66 (IB) - B32-68 (EIB)
B - BR
Battery current sensor
Ignition switch ON
0.5 to 4.5 V
A12-54 (THB) - B32-68 (EIB)
LG - BR
Battery temperature sensor
Ignition switch ON
0.5 to 4.5 V
  1. *1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
  2. *2: for CVT
  3. *3: w/ Entry and Start System

WAVEFORM 1
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Igniter IGT Signal (from ECM to Igniter)
ECM Terminal Name
CH1: Between IGT (1 to 4) and E1
CH2: Between IGF1 and E1
Tester Range
2 V/DIV., 20 ms./DIV.
Condition
Idling with warm engine
HINT:
The wavelength becomes shorter as the engine speed increases.

WAVEFORM 2
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Crankshaft Position Sensor and Variable Valve Timing (VVT) Sensor
ECM Terminal Name
CH1: Between G2+ and G2-
CH1: Between EV1+ and EV1-
CH2: Between NE+ and NE-
Tester Range
5 V/DIV., 20 ms./DIV.
Condition
Idling with warm engine
HINT:
The wavelength becomes shorter as the engine speed increases.

WAVEFORM 3
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae 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 E01
Tester Range
20 V/DIV., 20 ms./DIV.
Condition
Idling with warm engine
HINT:
The wavelength becomes shorter as the engine speed increases.

WAVEFORM 4
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae 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 ms./DIV.
Condition
Engine speed maintained at 2500 rpm for 2 minutes after heated oxygen sensor warms up
HINT:
In the Data List, the item O2S B1 S2 shows the values input to the ECM from the heated oxygen sensor.

WAVEFORM 5
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae 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 ms./DIV.
Condition
Engine speed maintained at 4000 rpm after warming up
HINT:
  1. The wavelength becomes shorter as the engine speed increases.
  2. The waveforms and amplitudes displayed differ slightly depending on the vehicle.

WAVEFORM 6
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae 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 ms./DIV.
Condition
Vehicle being driven at approximately 20 km/h (12 mph)
HINT:
The wavelength becomes shorter as the vehicle speed increases.

WAVEFORM 7
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae 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 ms./DIV.
Condition
Idling with warm engine
HINT:
The duty ratio varies depending on the throttle actuator operation.

WAVEFORM 8
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae 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 ms./DIV.
Condition
Idling with warm engine
HINT:
The duty ratio varies depending on the throttle actuator operation.

WAVEFORM 9
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Purge VSV
ECM Terminal Name
Between PRG and E1
Tester Range
10 V/DIV., 20 ms./DIV.
Condition
Idling with warm engine
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, 35.3Zr-Fae 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 ms./DIV.
Condition
Idling with warm engine
HINT:
The wavelength becomes shorter as the engine speed increases.

WAVEFORM 11
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Camshaft Timing Oil Control Valve for Intake Camshaft
ECM Terminal Name
Between OC1+ and OC1-
Tester Range
5 V/DIV., 1 ms./DIV.
Condition
Idling with warm engine

WAVEFORM 12
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
CAN Communication Signal
ECM Terminal Name
Between CANH and E1
Between CAN+ and E1
Tester Range
1 V/DIV., 10 μsec./DIV.
Condition
Ignition switch ON with engine stopped
HINT:
The waveform varies depending on the CAN communication signal.

WAVEFORM 13
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
CAN Communication Signal
ECM Terminal Name
Between CANL and E1
Between CAN- and E1
Tester Range
1 V/DIV., 10 μsec./DIV.
Condition
Ignition switch ON with engine stopped
HINT:
The waveform varies depending on the CAN communication signal.

WAVEFORM 14
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
Camshaft Timing Oil Control Valve for Exhaust Camshaft
ECM Terminal Name
Between OE1+ and OE1-
Tester Range
5 V/DIV., 1 ms./DIV.
Condition
Idling with warm engine

WAVEFORM 15
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Sfi System Terminals Of Ecm
A/F Sensor Heater
ECM Terminal Name
Between HA1A and E04
Tester Range
5 V/DIV., 10 ms./DIV.
Condition
Idling before air fuel ratio sensor warms up
HINT:
The wavelength becomes shorter as the engine speed increases.