Sfi System Terminals Of Ecm

Engine. Camry. Acv40 Gsv40
2Gr-Fe Engine Control System. Camry. Acv40 Gsv40

  1. SFI SYSTEM

Sfi System -- Terminals Of Ecm



SFI SYSTEM
*1: The ECM terminal is constant regardless of the output voltage from the sensor.
*1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.

Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

HINT:
The standard normal voltage between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated.
The check results should be compared with the standard normal voltage for that pair of terminals, listed in the "STD Voltages" column.
The illustration above can be used as a reference to identify the ECM terminal locations.

RHD:
Symbols (Terminal No.)
Wiring Colors
Terminal Descriptions
Conditions
STD Voltages
+B (A24-2) - E1 (C58-81)
R - W-B
Power source of ECM
Ignition switch on
9 to 14 V
+B2 (A24-1) - E1 (C58-81)
R - W-B
Power source of ECM
Ignition switch on
9 to 14 V
BATT (A24-20) - E1 (C58-81)
Y - W-B
Battery (for measuring the battery voltage and for the ECM memory)
Always
9 to 14 V
+BM (A24-3) - E1 (C58-81)
LG - W-B
Power source of ETCS throttle motor
Always
9 to 14 V
MREL (A24-44) - E1 (C58-81)
O - W-B
EFI relay operation signal
Ignition switch on
9 to 14 V
IGSW (A24-28) - E1 (C58-81)
Y - W-B
Ignition switch signal
Ignition switch on
9 to 14 V
FC (A24-7) - E1 (C58-81)
Y - W-B
C/OPEN relay operation signal (fuel pump control)
Ignition switch on
9 to 14 V
STP ( A24-36 ) - E1 (C58-81)
W - W-B
Stop light switch signal
W-Bake pedal depressed
7.5 to 14 V
STP (A24-36) - E1 C58-81)
W - W-B
Stop light switch signal
W-Bake pedal released
Below 1.5 V
ST1- (A24-35) - E1 (C58-81)
GR - W-B
Stop light switch signal (opposite to STP terminal)
Ignition switch on, W-Bake pedal depressed
Below 1.5 V
ST1- (A24-35) - E1 (C58-81)
GR - W-B
Stop light switch signal (opposite to STP terminal)
Ignition switch on, W-Bake pedal released
7.5 to 14 V
VPA (A24-55) - E1 (C58-81)
G - W-B
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully released
0.5 to 1.1 V
VPA (A24-55) - E1 (C58-81)
G - W-B
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully depressed
2.6 to 4.5 V
VPA2 (A24-56) - EPA2 (A24-60)
R - O
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully released
1.2 to 2.0 V
VPA2 (A55-56) - EPA2 (A24-60)
R - O
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully depressed
3.4 to 5.0 V
EPA (A5-59) - VPA (A24-55)
Y - G
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully released
0.5 to 1.1 V
EPA (A5-59) - VPA (A24-55)
Y - G
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully depressed
2.6 to 4.5 V
EPA2 (A24-60) - VPA2 (A24-56)
O - R
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully released
1.2 to 2.0 V
EPA2 (A24-60) - VPA2 (A24-56)
O - R
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully depressed
3.4 to 5.0 V
TC (A24-27) - E1 (C58-81)
P - W-B
Terminal TC of DLC3
Ignition switch on
9 to 14 V
VCPA (A24-57) - EPA (A24-59)
B - Y
Power source of accelerator pedal position sensor (for VPA)
Ignition switch on
4.5 to 5.0 V
VCP2 (A24-58) - EPA2 (A24-60)
L - O
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch on
4.5 to 5.0 V
TACH (A24-15) - E1 (C58-81)
B - W-B
Engine speed signal (for combination meter)
Idling
Pulse generation
(see waveform 11)
CCS (A24-40) - E1 (C58-81)
W - W-B
Cruise control main switch signal
Ignition switch on
CANCEL switch ON
SET/COAST switch ON
RES/ACC switch ON
Main switch ON
10 to 16 V
6.6 to 10.1 V
4.5 to 7.1 V
2.3 to 4.0 V
Below 1 V
SPD (A24-8) - E1 (C58-81)
V - W-B
Vehicle speed signal from combination meter
Ignition switch on, Rotate driving wheel slowly
Pulse generation
(see waveform 8)
W (A24-24) - E1 (C58-81)
BR - W-B
Malfunction Indicator Lamp (MIL) operation signal
Ignition switch on
Below 3.0 V
W (A24-24) - E1 (C58-81)
BR - W-B
Malfunction Indicator Lamp (MIL) operation signal
Idling
9 to 14 V
CANH (A24-41) - E1 (C58-81)
B - W-B
CAN communication line
Ignition switch on
Pulse generation (see waveform 12)
CANL (A24-49) - E1 (C58-81)
W - W-B
CAN communication line
Ignition switch on
Pulse generation (see waveform 13)
E1 (C58-81) - Body ground
W-B - -
Earth (ground) circuit of ECM
Always
Below 1 V
#10 (C58-45) - E01 (C58-22)
#20 (C58-85) - E01 (C58-22)
#30 (C58-44) - E01 (C58-22)
#40 (C58-84) - E01 (C58-22)
#50 (C58-43) - E01 (C58-22)
#60 (C58-83) - E01 (C58-22)
B - W-B
R - W-B
Y - W-B
L - W-B
W-L - W-B
BR - W-B
Fuel injector operation signal
Ignition switch on
9 to 14 V
#10 (C58-45) - E01 (C58-22)
#20 (C58-85) - E01 (C58-22)
#30 (C58-44) - E01 (C58-22)
#40 (C58-84) - E01 (C58-22)
#50 (C58-43) - E01 (C58-22)
#60 (C58-83) - E01 (C58-22)
B - W-B
R - W-B
Y - W-B
L - W-B
W-L - W-B
BR - W-B
Fuel injector operation signal
Idling
Pulse generation
(see waveform 3)
PSW (C58-70) - E1 (C58-81)
B - W-B
P/S pressure switch signal
Ignition switch on
9 to 14 V
STA (A24-48) - E1 (C58-81)
V - W-B
Starter relay operation signal
Cranking
9 to 14 V
OC2- (C58-51) - OC2+ (C58-52)
R - BR
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
OC2+ (C58-52) - OC2- (C58-51)
BR - R
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
OC1- (C58-57) - OC1+ (C58-58)
B - W
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
OC1+ (C58-58) - OC1- (C58-57)
W - B
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
VV2+ (C58-67) - VV2- (C58-90)
W - B
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
VV1+ (C58-69) - VV1- (C58-92)
L - LG
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
NE- (C58-111) - NE+ (C58-110)
R - G
Crankshaft position sensor signal
Idling
Pulse generation
(see waveform 5)
NE+ (C58-110) - NE- (C58-111)
G - R
Crankshaft position sensor signal
Idling
Pulse generation
(see waveform 5)
EV2- (C58-89) - EV2+ (C58-66)
L - G-R
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
EV2+ (C58-66) - EV2- (C58-89)
G-R - L
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
EV1- (C58-91) - EV1+ (C58-68)
B - Y
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
EV1+ (C58-68) - EV1- (C58-91)
Y - B
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
OE1+ (C58-16) - OE1- (C58-17)
L - LG
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
OE2+ (C58-14) - OE2- (C58-15)
W-L - Y
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
VV2- (C58-90) - VV2+ (C58-67)
B - W
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
VV1- (C58-92) - VV1+ (C58-69)
LG - L
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
OE1- (C58-17) - OE1+ (C58-16)
LG - L
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
OE2- (C58-15) - OE2+ (C58-14)
Y - W-L
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
HT1B (C58-48) - E1 (C58-81) HT2B (C58-47) - E1 (C58-81)
LG - W-B
Y - W-B
Heated oxygen sensor heater operation signal
Idling
Below 3.0 V
HT1B (C58-48) - E1 (C58-81) HT2B (C58-47) - E1 (C58-81)
LG - W-B
Y - W-B
Heated oxygen sensor heater operation signal
Ignition switch on
9 to 14 V
ACM (C58-42) - E1 (C58-81)
L-B - W-B
VSV for active control mount system operation signal
Ignition switch on
9 to 14 V
M- (C58-18) - ME01 (C58-20)
R - B
Throttle drive motor operation signal (negative terminal)
Idling with warm engine
Pulse generation
(see waveform 10)
M+ (C58-19) - ME01 (C58-20)
G - B
Throttle drive motor operation signal (positive terminal)
Idling with warm engine
Pulse generation
(see waveform 9)
E02 (C58-21) - Body ground
B-W - -
Earth (ground) circuit of ECM
Always
Below 1 V
E01 (C58-22) - Body ground
W-B - -
Earth (ground) circuit of ECM
Always
Below 1 V
IGT1 (C58-40) - E1 (C58-81)
IGT2 (C58-39) - E1 (C58-81)
IGT3 (C58-38) - E1 (C58-81)
IGT4 (C58-37) - E1 (C58-81)
IGT5 (C58-36) - E1 (C58-81)
IGT6 (C58-35) - E1 (C58-81)
W - W-B
G-R - W-B
G - W-B
LG - W-B
P - W-B
L-B - W-B
Ignition coil with igniter (ignition signal)
Idling
Pulse generation
(see waveform 6)
GE01 (C58-41) - E1 (C58-81)
G-R - W-B
Shielded earth (ground) circuit of throttle drive motor
Always
Below 1 V
OX1B (C58-88) - EX1B (C58-65)
OX2B (C58-87) - EX2B (C58-64)
W - BR
B - W-B
Heated oxygen sensor signal
With engine speed at 2,500 rpm for 2 minutes after warming up
Pulse generation
(see waveform 2)
VTA2 (C58-99) - ETA (C58-97)
W-L - P
Throttle position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully released
2.1 to 3.1 V
VTA2 (C58-99) - ETA (C58-97)
W-L - P
Throttle position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully depressed
4.5 to 5.0 V
VTA1 (C58-98) - ETA (C58-97)
Y - P
Throttle position sensor signal (for engine control)
Ignition switch on, Throttle valve fully closed
0.5 to 1.2 V
VTA1 (C58-98) - ETA (C58-97)
Y - P
Throttle position sensor signal (for engine control)
Ignition switch on, Throttle valve fully open
3.2 to 4.8 V
THW (C58-79) - ETHW (C58-78)
B - P
Engine coolant temperature sensor signal
Idling, Engine coolant temperature 80°C (176°F)
0.2 to 1.0 V
THA (C58-71) - ETHA (C58-74)
P - G-R
Intake air temperature sensor signal
Idling, Intake air temperature 20°C (68°F)
0.5 to 3.4 V
IGF1 (C58-106) - E1 (C58-81)
BR - W-B
Ignition coil with igniter (ignition confirmation signal)
Ignition switch on
4.5 to 5.0 V
IGF1 (C58-106) - E1 (C58-81)
BR - W-B
Ignition coil with igniter (ignition confirmation signal)
Idling
Pulse generation
(see waveform 6)
AICV (A24-4) - E1 (C58-81)
V - W-B
VSV for Air intake control system operation signal
Ignition switch on
9 to 14 V
E2G (C58-73) - E1 (C58-81)
LG - W-B
Earth (ground) circuit of sensor for mass air flow meter
Always
Below 1 V
VG (C58-72) - E2G (C58-73)
L-B - LG
Mass Air Flow (MAF) meter signal
Idling, Shift lever position P or N, A/C switch OFF
0.5 to 3.0 V
ACIS (C58-107) - E1 (C58-81)
B-W - W-B
VSV for ACIS (Acoustic Control Induction System) operation signal
Ignition switch on
9 to 14 V
PRG (C58-108) - E1 (C58-81)
G-R - W-B
Purge VSV for EVAP system operation signal
Ignition switch on
9 to 14 V
PRG (C58-108) - E1 (C58-81)
G-R - W-B
Purge VSV for EVAP system operation signal
Idling
Pulse generation
(see waveform 7)
HA2A (C58-109) - E05 (C58-46)
B-W - W
A/F sensor heater operation signal
Idling
Below 3.0 V
HA2A (C58-109) - E05 (C58-46)
B-W - W
A/F sensor heater operation signal
Ignition switch on
9 to 14 V
HA1A (C58-86) - E04 (C58-23)
G - W
A/F sensor heater operation signal
Idling
Below 3.0 V
HA1A (C58-86) - E04 (C58-23)
G - W
A/F sensor heater operation signal
Ignition switch on
9 to 14 V
ME01 (C58-20) - E1 (C58-81)
B - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
E03 (C58-104) - E1 (C58-81)
B - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
HT2B (C58-47) - E1 (C58-81)
HT1B (C58-48) - E1 (C58-81)
Y - W-B
LG - W-B
Heated oxygen sensor heater operation signal
Idling
Below 3.0 V
HT2B (C58-47) - E1 (C58-81)
HT1B (C58-48) - E1 (C58-81)
Y - W-B
LG - W-B
Heated oxygen sensor heater operation signal
Ignition switch on
9 to 14 V
E05 (C58-46) - E1 (C58-81)
W - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
E04 (C58-23) - E1 (C58-81)
W - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
EKN2 (C58-117) - KNK2 (C58-118)
W - B
Earth (ground) circuit of knock sensor
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
KNK2 (C58-118) - EKN2 (C58-117)
B - W
Knock sensor signal
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
A1A+ (C58-93) - E1 (C58-81)
L - W-B
A/F sensor signal
Ignition switch on
3.3 V*1
A1A+ (C58-93) - E1 (C58-81)
L - W-B
A/F sensor signal
Ignition switch on
3.0 V*1
A2A+ (C58-120) - E1 (C58-81)
BR - W-B
A/F sensor signal
Ignition switch on
3.3 V*1
A2A+ (C58-120) - E1 (C58-81)
BR - W-B
A/F sensor signal
Ignition switch on
3.0 V*1
EKNK (C58-94) - KNK1 (C58-95)
G - R
Earth (ground) circuit of knock sensor
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
KNK1 (C58-95) - EKNK (C58-94)
R - G
Knock sensor signal
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
A1A- (C58-116) - E1 (C58-81)
P - W-B
A/F sensor
Ignition switch on
3.3 V*1
A1A- (C58-116) - E1 (C58-81)
P - W-B
A/F sensor
Ignition switch on
3.0 V*1
A2A- (C58-119) - E1 (C58-81)
Y - W-B
A/F sensor
Ignition switch on
3.3 V*1
A2A- (C58-119) - E1 (C58-81)
Y - W-B
A/F sensor
Ignition switch on
3.0 V*1
OX2B (C58-87) - EX2B (C58-64)
OX1B (C58-88) - EX1B (C58-65)
B - W-B
W - BR
Heated oxygen sensor signal
With engine speed at 2,500 rpm for 2 minutes after warming up
Pulse generation
(see waveform 2)
P (C58-24) - E1 (C58-81)
B-W - W-B
P shift position switch signal
Ignition switch on and shift lever P position
9 to 14 V
P (C58-24) - E1 (C58-81)
B-W - W-B
P shift position switch signal
Ignition switch on and shift lever except P position
Below 1 V
R (C58-25) - E1 (C58-81)
P - W-B
R shift position switch signal
Ignition switch on and shift lever R position
9 to 14 V
R (C58-25) - E1 (C58-81)
P - W-B
R shift position switch signal
Ignition switch on and shift lever except R position
Below 1 V
N (C58-27) - E1 (C58-81)
L-B - W-B
N shift position switch signal
Ignition switch on and shift lever N position
9 to 14 V
N (C58-27) - E1 (C58-81)
L-B - W-B
N shift position switch signal
Ignition switch on and shift lever except N position
Below 1 V
D (C58-26) - E1 (C58-81)
G - W-B
D shift position switch signal
Ignition switch on and shift lever D position
9 to 14 V
D (C58-26) - E1 (C58-81)
G - W-B
D shift position switch signal
Ignition switch on and shift lever except D position
Below 1 V
S (A24-25) - E1 (C58-81)
Y - W-B
S shift position switch signal
Ignition switch on and shift lever S position
9 to 14 V
S (A24-25) - E1 (C58-81)
Y - W-B
S shift position switch signal
Ignition switch on and shift lever except S position
Below 1 V
SFTD (A24-51) - E1 (C58-81)
L - W-B
Down shift switch signal
Ignition switch on and shift lever S position
9 to 14 V
SFTD (A24-51) - E1 (C58-81)
L - W-B
Down shift switch signal
Ignition switch on and shift lever "-" position (Down shift)
Below 1 V
SFTU (A24-16) - E1 (C58-81)
R - W-B
Up shift switch signal
Ignition switch on and shift lever S position
9 to 14 V
SFTU (A24-16) - E1 (C58-81)
R - W-B
Up shift switch signal
Ignition switch on and shift lever "+" position (Up shift)
Below 1 V

LHD:
Symbols (Terminal No.)
Wiring Colors
Terminal Descriptions
Conditions
STD Voltages
+B (A55-2) - E1 (C55-81)
R - W-B
Power source of ECM
Ignition switch on
9 to 14 V
+B2 (A55-1) - E1 (C55-81)
R - W-B
Power source of ECM
Ignition switch on
9 to 14 V
BATT (A55-20) - E1 (C55-81)
Y - W-B
Battery (for measuring the battery voltage and for the ECM memory)
Always
9 to 14 V
+BM (A55-3) - E1 (C55-81)
LG - W-B
Power source of ETCS throttle motor
Always
9 to 14 V
MREL (A55-44) - E1 (C55-81)
O - W-B
EFI relay operation signal
Ignition switch on
9 to 14 V
IGSW (A55-28) - E1 (C55-81)
Y - W-B
Ignition switch signal
Ignition switch on
9 to 14 V
FC (A55-7) - E1 (C55-81)
Y - W-B
C/OPEN relay operation signal (fuel pump control)
Ignition switch on
9 to 14 V
STP ( A55-36 ) - E1 (C55-81)
W - W-B
Stop light switch signal
Brake pedal depressed
7.5 to 14 V
STP (A55-36) - E1 C55-81)
W - W-B
Stop light switch signal
Brake pedal released
Below 1.5 V
ST1- (A55-35) - E1 (C55-81)
GR - W-B
Stop light switch signal (opposite to STP terminal)
Ignition switch on, Brake pedal depressed
Below 1.5 V
ST1- (A55-35) - E1 (C55-81)
GR - W-B
Stop light switch signal (opposite to STP terminal)
Ignition switch on, Brake pedal released
7.5 to 14 V
VPA (A55-55) - E1 (C55-81)
G - W-B
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully released
0.5 to 1.1 V
VPA (A55-55) - E1 (C55-81)
G - W-B
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully depressed
2.6 to 4.5 V
VPA2 (A55-56) - EPA2 (A55-60)
R - O
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully released
1.2 to 2.0 V
VPA2 (A55-56) - EPA2 (A55-60)
R - O
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully depressed
3.4 to 5.0 V
EPA (A5-59) - VPA (A55-55)
Y - G
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully released
0.5 to 1.1 V
EPA (A5-59) - VPA (A55-55)
Y - G
Accelerator pedal position sensor signal (for engine control)
Ignition switch on, Accelerator pedal fully depressed
2.6 to 4.5 V
EPA2 (A55-60) - VPA2 (A55-56)
O - R
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully released
1.2 to 2.0 V
EPA2 (A55-60) - VPA2 (A55-56)
O - R
Accelerator pedal position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully depressed
3.4 to 5.0 V
TC (A55-27) - E1 (C55-81)
P - W-B
Terminal TC of DLC3
Ignition switch on
9 to 14 V
VCPA (A55-57) - EPA (A55-59)
B - Y
Power source of accelerator pedal position sensor (for VPA)
Ignition switch on
4.5 to 5.0 V
VCP2 (A55-58) - EPA2 (A55-60)
L - O
Power source of accelerator pedal position sensor (for VPA2)
Ignition switch on
4.5 to 5.0 V
TACH (A55-15) - E1 (C55-81)
B - W-B
Engine speed signal (for combination meter)
Idling
Pulse generation
(see waveform 11)
CCS (A55-40) - E1 (C55-81)
W - W-B
Cruise control main switch signal
Ignition switch on
CANCEL switch ON
SET/COAST switch ON
RES/ACC switch ON
Main switch ON
10 to 16 V
6.6 to 10.1 V
4.5 to 7.1 V
2.3 to 4.0 V
Below 1 V
SPD (A55-8) - E1 (C55-81)
V - W-B
Vehicle speed signal from combination meter
Ignition switch on, Rotate driving wheel slowly
Pulse generation
(see waveform 8)
W (A55-24) - E1 (C55-81)
BR - W-B
Malfunction Indicator Lamp (MIL) operation signal
Ignition switch on
Below 3.0 V
W (A55-24) - E1 (C55-81)
BR - W-B
Malfunction Indicator Lamp (MIL) operation signal
Idling
9 to 14 V
CANH (A55-41) - E1 (C55-81)
B - W-B
CAN communication line
Ignition switch on
Pulse generation (see waveform 12)
CANL (A55-49) - E1 (C55-81)
W - W-B
CAN communication line
Ignition switch on
Pulse generation (see waveform 13)
E1 (C55-81) - Body ground
W-B - -
Earth (ground) circuit of ECM
Always
Below 1 V
#10 (C55-45) - E01 (C55-22)
#20 (C55-85) - E01 (C55-22)
#30 (C55-44) - E01 (C55-22)
#40 (C55-84) - E01 (C55-22)
#50 (C55-43) - E01 (C55-22)
#60 (C55-83) - E01 (C55-22)
B - W-B
R - W-B
Y - W-B
L - W-B
W-L - W-B
BR - W-B
Fuel injector operation signal
Ignition switch on
9 to 14 V
#10 (C55-45) - E01 (C55-22)
#20 (C55-85) - E01 (C55-22)
#30 (C55-44) - E01 (C55-22)
#40 (C55-84) - E01 (C55-22)
#50 (C55-43) - E01 (C55-22)
#60 (C55-83) - E01 (C55-22)
B - W-B
R - W-B
Y - W-B
L - W-B
W-L - W-B
BR - W-B
Fuel injector operation signal
Idling
Pulse generation
(see waveform 3)
PSW (C55-70) - E1 (C55-81)
B - W-B
P/S pressure switch signal
Ignition switch on
9 to 14 V
STA (A55-48) - E1 (C55-81)
V - W-B
Starter relay operation signal
Cranking
9 to 14 V
OC2- (C55-51) - OC2+ (C55-52)
R - BR
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
OC2+ (C55-52) - OC2- (C55-51)
BR - R
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
OC1- (C55-57) - OC1+ (C55-58)
B - W
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
OC1+ (C55-58) - OC1- (C55-57)
W - B
Camshaft timing Oil Control Valve (OCV) operation signal (Intake side)
Ignition switch on
Pulse generation
(see waveform 1)
VV2+ (C55-67) - VV2- (C55-90)
W - B
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
VV1+ (C55-69) - VV1- (C55-92)
L - LG
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
NE- (C55-111) - NE+ (C55-110)
R - G
Crankshaft position sensor signal
Idling
Pulse generation
(see waveform 5)
NE+ (C55-110) - NE- (C55-111)
G - R
Crankshaft position sensor signal
Idling
Pulse generation
(see waveform 5)
EV2- (C55-89) - EV2+ (C55-66)
L - G-R
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
EV2+ (C55-66) - EV2- (C55-89)
G-R - L
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
EV1- (C55-91) - EV1+ (C55-68)
B - Y
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
EV1+ (C55-68) - EV1- (C55-91)
Y - B
Variable Valve Timing (VVT) sensor signal (Exhaust side)
Idling
Pulse generation
(see waveform 5)
OE1+ (C55-16) - OE1- (C55-17)
L - LG
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
OE2+ (C55-14) - OE2- (C55-15)
W-L - Y
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
VV2- (C55-90) - VV2+ (C55-67)
B - W
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
VV1- (C55-92) - VV1+ (C55-69)
LG - L
Variable Valve Timing (VVT) sensor signal (Intake side)
Idling
Pulse generation
(see waveform 5)
OE1- (C55-17) - OE1+ (C55-16)
LG - L
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
OE2- (C55-15) - OE2+ (C55-14)
Y - W-L
Camshaft timing Oil Control Valve (OCV) operation signal (Exhaust side)
Ignition switch on
Pulse generation
(see waveform 1)
HT1B (C55-48) - E1 (C55-81) HT2B (C55-47) - E1 (C55-81)
LG - W-B
Y - W-B
Heated oxygen sensor heater operation signal
Idling
Below 3.0 V
HT1B (C55-48) - E1 (C55-81) HT2B (C55-47) - E1 (C55-81)
LG - W-B
Y - W-B
Heated oxygen sensor heater operation signal
Ignition switch on
9 to 14 V
ACM (C55-42) - E1 (C55-81)
L-B - W-B
VSV for active control mount system operation signal
Ignition switch on
9 to 14 V
M- (C55-18) - ME01 (C55-20)
R - B
Throttle drive motor operation signal (negative terminal)
Idling with warm engine
Pulse generation
(see waveform 10)
M+ (C55-19) - ME01 (C55-20)
G - B
Throttle drive motor operation signal (positive terminal)
Idling with warm engine
Pulse generation
(see waveform 9)
E02 (C55-21) - Body ground
B-W - -
Earth (ground) circuit of ECM
Always
Below 1 V
E01 (C55-22) - Body ground
W-B - -
Earth (ground) circuit of ECM
Always
Below 1 V
IGT1 (C55-40) - E1 (C55-81)
IGT2 (C55-39) - E1 (C55-81)
IGT3 (C55-38) - E1 (C55-81)
IGT4 (C55-37) - E1 (C55-81)
IGT5 (C55-36) - E1 (C55-81)
IGT6 (C55-35) - E1 (C55-81)
W - W-B
G-R - W-B
G - W-B
LG - W-B
P - W-B
L-B - W-B
Ignition coil with igniter (ignition signal)
Idling
Pulse generation
(see waveform 6)
GE01(C55-41) - E1 (C55-81)
G-R - W-B
Shielded earth (ground) circuit of throttle drive motor
Always
Below 1 V
OX1B (C55-88) - EX1B (C55-65)
OX2B (C55-87) - EX2B (C55-64)
W - BR
B - W-B
Heated oxygen sensor signal
With engine speed at 2,500 rpm for 2 minutes after warming up
Pulse generation
(see waveform 2)
VTA2 (C55-99) - ETA (C55-97)
W-L - P
Throttle position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully released
2.1 to 3.1 V
VTA2 (C55-99) - ETA (C55-97)
W-L - P
Throttle position sensor signal (for sensor malfunction detection)
Ignition switch on, Accelerator pedal fully depressed
4.5 to 5.0 V
VTA1 (C55-98) - ETA (C55-97)
Y - P
Throttle position sensor signal (for engine control)
Ignition switch on, Throttle valve fully closed
0.5 to 1.2 V
VTA1 (C55-98) - ETA (C55-97)
Y - P
Throttle position sensor signal (for engine control)
Ignition switch on, Throttle valve fully open
3.2 to 4.8 V
THW (C55-79) - ETHW (C55-78)
B - P
Engine coolant temperature sensor signal
Idling, Engine coolant temperature 80°C (176°F)
0.2 to 1.0 V
THA (C55-71) - ETHA (C55-74)
P - G-R
Intake air temperature sensor signal
Idling, Intake air temperature 20°C (68°F)
0.5 to 3.4 V
IGF1 (C55-106) - E1 (C55-81)
BR - W-B
Ignition coil with igniter (ignition confirmation signal)
Ignition switch on
4.5 to 5.0 V
IGF1 (C55-106) - E1 (C55-81)
BR - W-B
Ignition coil with igniter (ignition confirmation signal)
Idling
Pulse generation
(see waveform 6)
AICV (A55-4) - E1 (C55-81)
V - W-B
VSV for Air intake control system operation signal
Ignition switch on
9 to 14 V
E2G (C55-73) - E1 (C55-81)
LG - W-B
Earth (ground) circuit of sensor for mass air flow meter
Always
Below 1 V
VG (C55-72) - E2G (C55-73)
L-B - LG
Mass Air Flow (MAF) meter signal
Idling, Shift lever position P or N, A/C switch OFF
0.5 to 3.0 V
ACIS (C55-107) - E1 (C55-81)
B-W - W-B
VSV for ACIS (Acoustic Control Induction System) operation signal
Ignition switch on
9 to 14 V
PRG (C55-108) - E1 (C55-81)
G-R - W-B
Purge VSV for EVAP system operation signal
Ignition switch on
9 to 14 V
PRG (C55-108) - E1 (C55-81)
G-R - W-B
Purge VSV for EVAP system operation signal
Idling
Pulse generation
(see waveform 7)
HA2A (C55-109) - E05 (C55-46)
B-W - W
A/F sensor heater operation signal
Idling
Below 3.0 V
HA2A (C55-109) - E05 (C55-46)
B-W - W
A/F sensor heater operation signal
Ignition switch on
9 to 14 V
HA1A (C55-86) - E04 (C55-23)
G - W
A/F sensor heater operation signal
Idling
Below 3.0 V
HA1A (C55-86) - E04 (C55-23)
G - W
A/F sensor heater operation signal
Ignition switch on
9 to 14 V
ME01 (C55-20) - E1 (C55-81)
B - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
E03 (C55-104) - E1 (C55-81)
B - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
HT2B (C55-47) - E1 (C55-81)
HT1B (C55-48) - E1 (C55-81)
Y - W-B
LG - W-B
Heated oxygen sensor heater operation signal
Idling
Below 3.0 V
HT2B (C55-47) - E1 (C55-81)
HT1B (C55-48) - E1 (C55-81)
Y - W-B
LG - W-B
Heated oxygen sensor heater operation signal
Ignition switch on
9 to 14 V
E05 (C55-46) - E1 (C55-81)
W - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
E04 (C55-23) - E1 (C55-81)
W - W-B
Earth (ground) circuit of ECM
Always
Below 1 V
EKN2 (C55-117) - KNK2 (C55-118)
W - B
Earth (ground) circuit of knock sensor
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
KNK2 (C55-118) - EKN2 (C55-117)
B - W
Knock sensor signal
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
A1A+ (C55-93) - E1 (C55-81)
L - W-B
A/F sensor signal
Ignition switch on
3.3 V*1
A1A+ (C55-93) - E1 (C55-81)
L - W-B
A/F sensor signal
Ignition switch on
3.0 V*1
A2A+ (C55-120) - E1 (C55-81)
L - W-B
A/F sensor signal
Ignition switch on
3.3 V*1
A2A+ (C55-120) - E1 (C55-81)
L - W-B
A/F sensor signal
Ignition switch on
3.0 V*1
EKNK (C55-94) - KNK1 (C55-95)
G - R
Earth (ground) circuit of knock sensor
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
KNK1 (C55-95) - EKNK (C55-94)
R - G
Knock sensor signal
With engine speed at 4,000 rpm after warming up
Pulse generation
(see waveform 4)
A1A- (C55-116) - E1 (C55-81)
P - W-B
A/F sensor
Ignition switch on
3.3 V*1
A1A- (C55-116) - E1 (C55-81)
P - W-B
A/F sensor
Ignition switch on
3.0 V*1
A2A- (C55-119) - E1 (C55-81)
Y - W-B
A/F sensor
Ignition switch on
3.3 V*1
A2A- (C55-119) - E1 (C55-81)
Y - W-B
A/F sensor
Ignition switch on
3.0 V*1
OX2B (C55-87) - EX2B (C55-64)
OX1B (C55-88) - EX1B (C55-65)
B - W-B
W - BR
Heated oxygen sensor signal
With engine speed at 2,500 rpm for 2 minutes after warming up
Pulse generation
(see waveform 2)
P (C55-24) - E1 (C55-81)
B-W - W-B
P shift position switch signal
Ignition switch on and shift lever P position
9 to 14 V
P (C55-24) - E1 (C55-81)
B-W - W-B
P shift position switch signal
Ignition switch on and shift lever except P position
Below 1 V
R (C55-25) - E1 (C55-81)
P - W-B
R shift position switch signal
Ignition switch on and shift lever R position
9 to 14 V
R (C55-25) - E1 (C55-81)
P - W-B
R shift position switch signal
Ignition switch on and shift lever except R position
Below 1 V
N (C55-27) - E1 (C55-81)
L-B - W-B
N shift position switch signal
Ignition switch on and shift lever N position
9 to 14 V
N (C55-27) - E1 (C55-81)
L-B - W-B
N shift position switch signal
Ignition switch on and shift lever except N position
Below 1 V
D (C55-26) - E1 (C55-81)
G - W-B
D shift position switch signal
Ignition switch on and shift lever D position
9 to 14 V
D (C55-26) - E1 (C55-81)
G - W-B
D shift position switch signal
Ignition switch on and shift lever except D position
Below 1 V
S (A55-25) - E1 (C55-81)
Y - W-B
S shift position switch signal
Ignition switch on and shift lever S position
9 to 14 V
S (A55-25) - E1 (C55-81)
Y - W-B
S shift position switch signal
Ignition switch on and shift lever except S position
Below 1 V
SFTD (A55-51) - E1 (C55-81)
L - W-B
Down shift switch signal
Ignition switch on and shift lever S position
9 to 14 V
SFTD (A55-51) - E1 (C55-81)
L - W-B
Down shift switch signal
Ignition switch on and shift lever "-" position (Down shift)
Below 1 V
SFTU (A55-16) - E1 (C55-81)
R - W-B
Up shift switch signal
Ignition switch on and shift lever S position
9 to 14 V
SFTU (A55-16) - E1 (C55-81)
R - W-B
Up shift switch signal
Ignition switch on and shift lever "+" position (Up shift)
Below 1 V


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  1. WAVEFORM 1

    1. Camshaft timing Oil Control Valve (OCV) operation signal

      ECM Terminal Names
      		Between OC1+ and OC1- , OC2+ and OC2- , OE1+ and OE1- , or OE2+ and OE2-
      Tester Ranges
      		5 V/DIV., 1 ms./DIV.
      Conditions
      		Idling
      HINT:
      The wavelength becomes shorter as the engine rpm increases.


    2. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  2. WAVEFORM 2

    1. Heated oxygen sensor signal

      ECM Terminal Names
      		Between OX1B and EX1B, or OX2B and EX2B
      Tester Ranges
      		0.2 V/DIV., 200 ms./DIV.
      Conditions
      		Engine speed is maintained at 2,500 rpm for 2 minutes after sensor is warmed up
      HINT:
      In the DATA LIST, item O2S B1S2 shows the ECM values from the heated oxygen sensor.


    3. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  3. WAVEFORM 3

    1. Fuel injector operation signal

      ECM Terminal Names
      		Between #10 (to 60) and E01
      Tester Ranges
      		30 V/DIV., 20 ms./DIV.
      Conditions
      		Idling
      HINT:
      The wavelength becomes shorter as the engine rpm increases.


    4. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  4. WAVEFORM 4

    1. Knock sensor signal

      ECM Terminal Names
      		Between KNK1 and EKNK, or KNK2 and EKN2
      Tester Ranges
      		0.01 to 10 V/DIV., 0.01 to 10 ms./DIV.
      Conditions
      		Engine speed is maintained at 4,000 rpm after engine is warmed up
      HINT:
      1. The wavelength becomes shorter as the engine rpm increases.
      2. The waveforms and amplitudes displayed differ slightly depending on the vehicle.


    5. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  5. WAVEFORM 5

    1. Variable Valve Timing (VVT) sensor signal (1)

    2. Crankshaft position sensor signal (2)

      ECM Terminal Names
      		(1) Between VV1+ and VV1- , VV2+ and VV2-, EV1+ and EV1-, or EV2+ and EV2-
      (2) Between NE+ and NE-
      Tester Ranges
      		5 V/DIV., 20 ms./DIV.
      Conditions
      		Idling
      HINT:
      The wavelength becomes shorter as the engine rpm increases.


    6. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  6. WAVEFORM 6

    1. Igniter IGT signal (from ECM to igniter) (1)

    2. Igniter IGF signal (from igniter to ECM) (2)

      ECM Terminal Names
      		(1) Between IGT (1 to 6) and E1
      (2) Between IGF1 and E1
      Tester Ranges
      		2 V/DIV., 20 ms./DIV.
      Conditions
      		Idling
      HINT:
      The wavelength becomes shorter as the engine rpm increases.


    7. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  7. WAVEFORM 7

    1. Purge VSV for EVAP system operation signal

      ECM Terminal Names
      		Between PRG and E1
      Tester Ranges
      		10 V/DIV., 50 ms./DIV.
      Conditions
      		Idling
      HINT:
      If the waveform is not similar to that shown in the illustration, check the waveform again after idling for 10 minutes or more.


    8. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  8. WAVEFORM 8

    1. Vehicle speed signal

      ECM Terminal Names
      		Between SPD and E1
      Tester Ranges
      		2 V/DIV., 20 ms./DIV.
      Conditions
      		Driving at 12 mph (20 km/h)
      HINT:
      1. The wavelength becomes shorter as the vehicle speed increases.
      2. Depending on the vehicle, the output waveform voltage may rise to 12 V if influenced by optionally installed systems.


    9. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  9. WAVEFORM 9

    1. Throttle drive motor operation signal (positive terminal)

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


    10. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  10. WAVEFORM 10

    1. Throttle drive motor operation signal (negative terminal)

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


    11. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  11. WAVEFORM 11

    1. Engine speed signal

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


    12. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  12. WAVEFORM 12

    1. CAN communication signal

      ECM Terminal Names
      		Between CANH and E1
      Tester Ranges
      		1 V/DIV., 10 μsec./DIV.
      Conditions
      		Engine stops and ignition switch to the ON position
      HINT:
      The waveform varies depending on the CAN communication signal.


    13. Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Terminals Of Ecm

  13. WAVEFORM 13

    1. CAN communication signal

      ECM Terminal Names
      		Between CANL and E1
      Tester Ranges
      		1 V/DIV., 10 μsec./DIV.
      Conditions
      		Engine stops and ignition switch to the ON position
      HINT:
      The waveform varies depending on the CAN communication signal.