RM38T0EC
_51
Engine / Hybrid System
_144956
M20F-FXS, M20G-FXS ENGINE CONTROL
_0604911
SFI SYSTEM
U
M20F-FXS, M20G-FXS ENGINE CONTROL SFI SYSTEM TERMINALS OF ECM
1.833,0.583 2.25,0.833
0.417,0.25
5.5,0.583 5.917,0.833
0.417,0.25
1.875,0.615 2.333,0.813
0.458,0.198
10
false
C141
5.583,0.615 6.042,0.813
0.458,0.198
10
false
A47
- HINT:
-
The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| A47-1 (BATT) - A47-10 (E1) | Auxiliary battery (for measuring auxiliary battery voltage and ECM memory) | Always | 11 to 16 V |
| A47-2 (IGP) - A47-10 (E1) | Ignition switch signal | Ignition switch ON | 11 to 14 V |
| A47-3 (VPMP) - A47-10 (E1) | Vent valve (built into canister pump module) | Ignition switch ON | 11 to 14 V |
| A47-4 (MPMP) - A47-10 (E1) | Leak detection pump (canister pump module) | Leak detection pump OFF | Below 3 V |
| Leak detection pump ON | 11 to 14 V | ||
| A47-5 (CFDT) - A47-10 (E1) | CAN communication line | Engine stopped, Ignition switch ON | Pulse generation
(See waveform 1) |
| A47-6 (CFDB) - A47-10 (E1) | CAN communication line | Engine stopped, Ignition switch ON | Pulse generation
(See waveform 4) |
| A47-7 (CFDH) - A47-10 (E1) | CAN communication line | Engine stopped, Ignition switch ON | Pulse generation
(See waveform 1) |
| A47-8 (CFDL) - A47-10 (E1) | CAN communication line | Engine stopped, Ignition switch ON | Pulse generation
(See waveform 4) |
| A47-9 (+B) - A47-10 (E1) | ·
Power source of ECM ·
Power source of throttle actuator |
Ignition switch ON | 11 to 14 V |
| A47-10 (E1) - Body ground | Ground | Always | Below 1 Ω |
| A47-11 (CCB+) - A47-10 (E1) | Fuel vapor containment valve signal | Ignition switch ON | Pulse generation
(See waveform 2) |
| A47-12 (CCA+) - A47-10 (E1) | Fuel vapor containment valve signal | Ignition switch ON | Pulse generation
(See waveform 2) |
| A47-14 (IGR) - A47-10 (E1) | Ignition signal | Ignition switch ON | 11 to 14 V |
| A47-15 (MREL) - A47-10 (E1) | EFI-MAIN NO. 1 relay operation signal | Ignition switch ON | Below 1.5 V |
| A47-16 (FPC) - A47-10 (E1) | Fuel pump control | Ignition switch ON | Below 1.5 V |
| A47-17 (NEO) - A47-10 (E1) | Crankshaft revolution signal | Idling with warm engine | Pulse generation
(See waveform 3) |
| A47-19 (CCB-) - A47-10 (E1) | Fuel vapor containment valve signal | Ignition switch ON | Pulse generation
(See waveform 2) |
| A47-20 (CCA-) - A47-10 (E1) | Fuel vapor containment valve signal | Ignition switch ON | Pulse generation
(See waveform 2) |
| A47-24 (G2O) - A47-10 (E1) | Camshaft revolution signal | Idling with warm engine | Pulse generation
(See waveform 5) |
| A47-31 (LIDO) - A47-10 (E1) | Fuel lid courtesy switch signal | Fuel lid closed | Below 1.0 V |
| Fuel lid open | 11 to 14 V | ||
| A47-32 (FANH) - A47-10 (E1) | Cooling fan motor operation signal (high) | Ignition switch ON | 11 to 14 V |
| Idling, high engine coolant temperature | Below 1 Ω | ||
| A47-33 (FANL) - A47-10 (E1) | Cooling fan motor operation signal (low) | Ignition switch ON | 11 to 14 V |
| Idling, high engine coolant temperature | Below 1 Ω | ||
| A47-34 (IREL) - A47-10 (E1) | D INJ relay operation signal | Ignition switch ON | Below 1.5 V |
| A47-35 (+B2) - A47-10 (E1) | Power source of ECM | Ignition switch ON | 11 to 14 V |
| A47-36 (E01) - Body ground | Ground | Always | Below 1 Ω |
| A47-38 (FUEL) - A47-10 (E1) | Fuel lid opener switch signal | Fuel lid opener switch pressed | Below 1.0 V |
| Fuel lid opener switch not pressed | 4.5 to 5.5 V | ||
| A47-41 (LSTM) - A47-10 (E1) | Fuel lid operation signal for combination meter assembly | Multi-information display displaying "Close Fuel Lid" | Pulse generation
(See waveform 27) |
| Multi-information display displaying "Ready to Refuel" | Pulse generation
(See waveform 28) |
||
| Ignition switch ON | 11 to 14 V | ||
| A47-44 (FREL) - A47-10 (E1) | Fuel lid lock with motor assembly operation signal | Fuel lid lock with motor assembly operating | Below 1.0 V |
| Fuel lid lock with motor assembly not operating | 11 to 14 V | ||
| A47-45 (EC) - Body ground | Ground | Always | Below 1 Ω |
| A47-48 (VCPP) - A47-49 (EPPM) | Power source for canister pressure sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| A47-50 (PPMP) - A47-49 (EPPM) | Canister pressure sensor (built into canister pump module) | Ignition switch ON | 3.0 to 3.6 V |
| A47-53 (+BD1) - A47-10 (E1) | Power source of ECU (injector driver) | Ignition switch ON | 11 to 14 V |
| A47-54 (E1D1) - Body ground | Ground | Always | Below 1 Ω |
| A47-55 (PTNK) - A47-56 (EPTK) | Fuel tank pressure sensor signal | Engine stopped, Ignition switch ON | 0.27 to 4.73 V |
| A47-57 (VPTK) - A47-56 (EPTK) | Power source of fuel tank pressure sensor (specific voltage) | Engine stopped, Ignition switch ON | 4.75 to 5.25 V |
| C141-1 (M-) - A47-10 (E1) | Throttle actuator operation signal (negative signal) | Idling with warm engine | Pulse generation
(See waveform 6) |
| C141-2 (M+) - A47-10 (E1) | Throttle actuator operation signal (positive terminal) | Idling with warm engine | Pulse generation
(See waveform 7) |
| C141-3 (EGA+) - A47-10 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 8) |
| C141-4 (EGA-) - A47-10 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 8) |
| C141-5 (EGB-) - A47-10 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 8) |
| C141-6 (EGB+) - A47-10 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 8) |
| C141-8 (HA1B) - A47-10 (E1) | Air fuel ratio sensor (sensor 2) heater operation signal | Ignition switch ON | 11 to 14 V |
| Idling with cold engine | Pulse generation
(See waveform 9) |
||
| C141-9 (HA1A) - A47-10 (E1) | Air fuel ratio sensor (sensor 1) heater operation signal | Ignition switch ON | 11 to 14 V |
| Idling with cold engine | Pulse generation
(See waveform 10) |
||
| C141-10 (#2D-) - A47-10 (E1) | Direct fuel injector assembly signal (No. 2 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-11 (#2D+) - A47-10 (E1) | Direct fuel injector assembly signal (No. 2 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-12 (#3D+) - A47-10 (E1) | Direct fuel injector assembly signal (No. 3 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-13 (#3D-) - A47-10 (E1) | Direct fuel injector assembly signal (No. 3 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-14 (#4D-) - A47-10 (E1) | Direct fuel injector assembly signal (No. 4 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-15 (#4D+) - A47-10 (E1) | Direct fuel injector assembly signal (No. 4 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-16 (#1D+) - A47-10 (E1) | Direct fuel injector assembly signal (No. 1 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-17 (#1D-) - A47-10 (E1) | Direct fuel injector assembly signal (No. 1 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 11) |
| C141-18 (FP1-) - A47-10 (E1) | Fuel pump assembly (for high pressure side) signal | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 12) |
| C141-19 (FP1+) - A47-10 (E1) | Fuel pump assembly (for high pressure side) signal | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 12) |
| C141-20 (VOP-) - A47-10 (E1) | Oil pressure control valve operation signal | Idling with warm engine | Pulse generation
(See waveform 13) |
| C141-21 (VOP+) - A47-10 (E1) | Oil pressure control valve operation signal | Idling with warm engine | Pulse generation
(See waveform 13) |
| C141-26 (OE1+) - C141-25 (OE1-) | Cam timing oil control solenoid assembly operation signal | Idling | Pulse generation
(See waveform 14) |
| C141-28 (EDT1) - A47-10 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 15) |
| C141-46 (IGT4) - A47-10 (E1) | No. 4 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 16) |
| C141-47 (IGT3) - A47-10 (E1) | No. 3 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 16) |
| C141-48 (IGT2) - A47-10 (E1) | No. 2 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 16) |
| C141-49 (IGT1) - A47-10 (E1) | No. 1 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 16) |
| C141-50 (WPO) - A47-10 (E1) | Electric water pump assembly signal | Idling with warm engine | Pulse generation
(See waveform 17) |
| C141-51 (WPI) - A47-10 (E1) | Electric water pump assembly signal | Idling with warm engine | Pulse generation
(See waveform 18) |
| C141-66 (PRG) - A47-10 (E1) | Purge VSV operation signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine, under purge control | Pulse generation
(See waveform 19) |
||
| C141-69 (VCPX) - C141-68 (EPEX) | Power source of differential pressure sensor (specific voltage) | Ignition switch ON | 4.75 to 5.25 V |
| C141-70 (EMR1) - A47-10 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 20) |
| C141-71 (EMF1) - A47-10 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Below 5.0 V |
| C141-72 (EMD1) - A47-10 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 21) |
| C141-73 (#40) - A47-10 (E1) | Port fuel injector assembly signal (No. 4 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 22) |
| C141-74 (#30) - A47-10 (E1) | Port fuel injector assembly signal (No. 3 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 22) |
| C141-75 (#20) - A47-10 (E1) | Port fuel injector assembly signal (No. 2 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 22) |
| C141-76 (#10) - A47-10 (E1) | Port fuel injector assembly signal (No. 1 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 22) |
| C141-78 (VCVG) - A47-10 (E1) | Power source of mass air flow meter (specific voltage) | Ignition switch ON | 4.8 to 5.2 V |
| C141-84 (VCPF) - A47-10 (E1) | Power source of No. 2 fuel pressure sensor (for low pressure side) (specific voltage) | Ignition switch ON | 4.75 to 5.25 V |
| C141-87 (VTA2) - C141-110 (ETA) | Throttle position sensor signal (for sensor malfunction detection) | Engine stopped, Ignition switch ON, accelerator pedal fully released | 2.1 to 3.1 V |
| C141-88 (VCV1) - A47-10 (E1) | Power source of camshaft position sensor (for intake camshaft) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C141-90 (VV1+) - C141-89 (VV1-) | Camshaft position sensor (for intake camshaft) signal | Idling with warm engine | Pulse generation
(See waveform 23) |
| C141-91 (EV1+) - C141-114 (EV1-) | Camshaft position sensor (for exhaust camshaft) signal | Idling with warm engine | Pulse generation
(See waveform 23) |
| C141-92 (PEX) - C141-68 (EPEX) | Differential pressure sensor signal | Ignition switch ON | 0.49 to 4.72 V |
| C141-93 (NE+) - C141-115 (NE-) | Crankshaft position sensor signal | Idling with warm engine | Pulse generation
(See waveform 24) |
| C141-94 (A1A-) - A47-10 (E1) | Air fuel ratio sensor (sensor 1) signal | Ignition switch ON | 1.24 to 4.22 V |
| C141-95 (A1A+) - A47-10 (E1) | Air fuel ratio sensor (sensor 1) signal | Ignition switch ON | 1.46 to 4.22 V |
| C141-97 (PR) - C141-96 (EPR) | Fuel pressure sensor (for high pressure side) signal | Idling with warm engine | 0.5 to 4.5 V |
| C141-98 (VCPR) - C141-96 (EPR) | Power source of fuel pressure sensor (for high pressure side) (specific voltage) | Ignition switch ON | 4.75 to 5.25 V |
| C141-99 (VCPE) - C141-100 (EPEO) | Power source of engine oil pressure sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C141-101 (VG) - C141-79 (E2G) | Mass air flow meter sub-assembly signal | Ignition switch ON | Pulse generation
(See waveform 25) |
| C141-102 (THA) - C141-79 (E2G) | Intake air temperature sensor (mass air flow meter) signal | Idling, intake air temperature 0 to 80°C (32 to 176°F) | 0.5 to 3.4 V |
| C141-103 (THCO) - C141-126 (ETCO) | No. 2 Exhaust gas temperature sensor | Engine warmed up, idling | 0.2 to 4.95 V |
| C141-105 (THCI) - C141-104 (ETCI) | No. 1 Exhaust gas temperature sensor | Engine warmed up, idling | 0.2 to 4.95 V |
| C141-107 (PFL) - C141-61 (EPFL) | Fuel pressure sensor (for low pressure side) signal | Idling with warm engine | 0.57 to 4.88 V |
| C141-108 (VTA1) - C141-110 (ETA) | Throttle position sensor signal (for engine control) | Engine stopped, Ignition switch ON, accelerator pedal fully released | 0.6 to 1.1 V |
| C141-109 (VCTA) - C141-110 (ETA) | Power source of throttle position sensor (specific voltage) | Engine stopped, Ignition switch ON | 4.5 to 5.5 V |
| C141-111 (KNK1) - C141-112 (EKNK) | Knock sensor signal | Engine speed maintained at 2500 rpm after warming up engine | Pulse generation
(See waveform 26) |
| C141-113 (VCE1) - A47-10 (E1) | Power source of camshaft position sensor (for exhaust camshaft) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C141-116 (VCNE) - A47-10 (E1) | Power source of crankshaft position sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C141-117 (A1B-) - A47-10 (E1) | Air fuel ratio sensor (sensor 2) signal | Ignition switch ON | 1.17 to 4.49 V |
| C141-118 (A1B+) - A47-10 (E1) | Air fuel ratio sensor (sensor 2) signal | Ignition switch ON | 1.53 to 5.96 V |
| C141-120 (PIM) - C141-119 (EPIM) | Manifold absolute pressure sensor signal | Ignition switch ON | 0.95 to 4.25 V |
| C141-121 (VCPM) - C141-119 (EPIM) | Power source of manifold absolute pressure sensor (specific voltage) | Ignition switch ON | 4.75 to 5.25 V |
| C141-122 (PEO) - C141-100 (EPEO) | Oil pressure sensor signal | Idling with warm engine | 0.5 to 4.5 V |
| C141-123 (THEO) - C141-100 (EPEO) | Engine oil temperature sensor signal | Ignition switch ON | 0.54 to 4.86 V |
| C141-125 (THW) - C141-124 (ETHW) | Engine coolant temperature sensor signal | Idling, engine coolant temperature 75 to 100°C (167 to 212°F) | 0.2 to 1.0 V |
WAVEFORM 1
3.01,1.396 3.344,1.708
0.333,0.313
10
false
GND
| ECM Terminal Name | Between CFDH and E1
Between CFDT and E1 |
| Tester Range | 1 V/DIV., 10 μs./DIV. |
| Condition | Engine stopped, Ignition switch ON |
- HINT:
-
The waveform varies depending on the CAN communication signal.
WAVEFORM 2
0.198,0.313 0.813,0.667
0.615,0.354
10
false
CCA+
0.229,1.365 0.844,1.719
0.615,0.354
10
false
CCA-
2.74,0.792 3.354,1.146
0.615,0.354
10
false
GND
2.75,1.594 3.365,1.948
0.615,0.354
10
false
GND
0.167,0.458 0.781,0.813
0.615,0.354
10
false
(CCB+)
0.198,1.51 0.813,1.865
0.615,0.354
10
false
(CCB-)
| ECM Terminal Name | CH1: Between CCA+ and E1
CH2: Between CCA- and E1 |
| CH1: Between CCB+ and E1
CH2: Between CCB- and E1 |
|
| Tester Range | 5 V/DIV., 5 μs./DIV. |
| Condition | Ignition switch ON |
- HINT:
-
When the fuel vapor-containment valve is operating, a waveform is produced at each terminal.
WAVEFORM 3
2.99,1.792 3.323,1.948
0.333,0.156
10
false
GND
| ECM Terminal Name | Between NEO and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 4
3.01,1.365 3.375,1.604
0.365,0.24
10
false
GND
| ECM Terminal Name | Between CFDL and E1
Between CFDB and E1 |
| Tester Range | 1 V/DIV., 10 μs./DIV. |
| Condition | Engine stopped, Ignition switch ON |
- HINT:
-
The waveform varies depending on the CAN communication signal.
WAVEFORM 5
2.99,1.792 3.323,1.948
0.333,0.156
10
false
GND
| ECM Terminal Name | Between G2O and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 6
2.854,1 3.323,1.354
0.469,0.354
10
false
GND
0.479,0.625 0.844,0.875
0.365,0.25
10
false
M-
| ECM Terminal Name | Between M- and E1 |
| 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 7
2.854,0.99 3.313,1.302
0.458,0.313
10
false
GND
0.521,0.656 0.99,0.948
0.469,0.292
10
false
M+
| ECM Terminal Name | Between M+ and E1 |
| 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
0.198,0.313 0.813,0.667
0.615,0.354
10
false
EGA+
0.229,1.365 0.844,1.719
0.615,0.354
10
false
EGA-
2.74,0.792 3.354,1.146
0.615,0.354
10
false
GND
2.75,1.594 3.365,1.948
0.615,0.354
10
false
GND
0.167,0.458 0.781,0.813
0.615,0.354
10
false
(EGB+)
0.198,1.51 0.813,1.865
0.615,0.354
10
false
(EGB-)
| ECM Terminal Name | CH1: Between EGA+ and E1
CH2: Between EGA- and E1 |
| CH1: Between EGB+ and E1
CH2: Between EGB- and E1 |
|
| Tester Range | 5 V/DIV., 5 μs./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
When the EGR valve assembly is operating, a waveform is produced at each terminal.
WAVEFORM 9
2.688,0.896 3.104,1.24
0.417,0.344
10
false
GND
| ECM Terminal Name | Between HA1B and E1 |
| Tester Range | 5 V/DIV., 10 ms./DIV. |
| Condition | Idling with cold engine |
WAVEFORM 10
2.688,0.896 3.104,1.24
0.417,0.344
10
false
GND
| ECM Terminal Name | Between HA1A and E1 |
| Tester Range | 5 V/DIV., 10 ms./DIV. |
| Condition | Idling with cold engine |
WAVEFORM 11
0.302,0.573 0.76,0.771
0.458,0.198
10
false
CH1
0.313,0.938 0.771,1.135
0.458,0.198
10
false
CH2
2.781,0.594 3.24,0.792
0.458,0.198
10
false
GND
2.771,0.948 3.229,1.146
0.458,0.198
10
false
GND
| ECM Terminal Name | CH1: Between #1D+ and E1
CH2: Between #1D- and E1 |
| CH1: Between #2D+ and E1
CH2: Between #2D- and E1 |
|
| CH1: Between #3D+ and E1
CH2: Between #3D- and E1 |
|
| CH1: Between #4D+ and E1
CH2: Between #4D- and E1 |
|
| Tester Range | 50 V/DIV., 200 μs./DIV. |
| Condition | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
WAVEFORM 12
0.26,0.406 1.573,0.698
1.313,0.292
10
false
FP1+
0.271,1.083 1.583,1.375
1.313,0.292
10
false
FP1-
2.76,0.438 3.135,0.865
0.375,0.427
10
false
GND
2.76,1.104 3.135,1.531
0.375,0.427
10
false
GND
| ECM Terminal Name | CH1: Between FP1+ and E1
CH2: Between FP1- and E1 |
| Tester Range | 20 V/DIV., 500 μs./DIV. |
| Condition | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" |
WAVEFORM 13
0.198,0.75 0.771,1.125
0.573,0.375
10
false
VOP+
0.219,1.26 0.792,1.635
0.573,0.375
10
false
VOP-
2.76,0.781 3.333,1.156
0.573,0.375
10
false
GND
2.76,1.271 3.333,1.646
0.573,0.375
10
false
GND
| ECM Terminal Name | CH1: Between VOP+ and E1
CH2: Between VOP- and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
WAVEFORM 14
0.51,1.125 1.021,1.385
0.51,0.26
10
false
GND
| ECM Terminal Name | Between OE1+ and OE1- |
| Tester Range | 5 V/DIV., 1 ms./DIV. |
| Condition | Idling |
WAVEFORM 15
2.844,1.802 3.302,2
0.458,0.198
10
false
GND
| ECM Terminal Name | Between EDT1 and E1 |
| Tester Range | 1 V/DIV., 5 ms./DIV. |
| Condition | Idling with warm engine |
WAVEFORM 16
3.031,0.604 3.365,0.781
0.333,0.177
10
false
GND
3.031,0.938 3.365,1.115
0.333,0.177
10
false
GND
3.031,1.271 3.365,1.448
0.333,0.177
10
false
GND
3.031,1.594 3.365,1.771
0.333,0.177
10
false
GND
0.375,0.604 0.813,0.823
0.438,0.219
10
false
IGT1
0.365,0.927 0.802,1.146
0.438,0.219
10
false
IGT2
0.365,1.26 0.802,1.479
0.438,0.219
10
false
IGT3
0.375,1.583 0.813,1.802
0.438,0.219
10
false
IGT4
| ECM Terminal Name | Between IGT (1 to 4) and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 17
2.99,1.792 3.323,1.948
0.333,0.156
10
false
GND
| ECM Terminal Name | Between WPO and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The duty ratio varies depending on the engine water pump assembly speed.
WAVEFORM 18
2.99,1.792 3.323,1.948
0.333,0.156
10
false
GND
| ECM Terminal Name | Between WPI and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine water pump assembly speed increases.
WAVEFORM 19
2.802,0.938 3.292,1.26
0.49,0.323
10
false
GND
| ECM Terminal Name | Between PRG and E1 |
| Tester Range | 10 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine, 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 20
2.833,1.844 3.292,2.042
0.458,0.198
10
false
GND
| ECM Terminal Name | Between EMR1 and E1 |
| Tester Range | 2 V/DIV., 5 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 21
2.833,1.823 3.333,2.021
0.5,0.198
10
false
GND
| ECM Terminal Name | Between EMD1 and E1 |
| Tester Range | 2 V/DIV., 100 ms./DIV. |
| Condition | Idling with warm engine |
WAVEFORM 22
0.656,1.583 1.115,1.781
0.458,0.198
10
false
GND
| ECM Terminal Name | Between #10 (to #40) and E1 |
| Tester Range | 20 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine (Data List item "Injection Mode" displaying "Port") |
- HINT:
- ·
The wavelength becomes shorter as the engine speed increases.
·When the port injection injectors are operating, Port is displayed for Injection Mode of the Data List.
WAVEFORM 23
0.167,0.656 0.49,0.823
0.323,0.167
10
false
CH1
0.156,1.448 0.479,1.615
0.323,0.167
10
false
CH2
0.094,0.844 0.49,1.052
0.396,0.208
10
false
(VV1)
0.083,1.604 0.479,1.833
0.396,0.229
10
false
(EV1)
3.052,0.813 3.396,0.958
0.344,0.146
10
false
GND
3.052,1.573 3.396,1.719
0.344,0.146
10
false
GND
| ECM Terminal Name | CH1: Between VV1+ and VV1-
CH2: Between EV1+ and EV1- |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 24
2.969,1.177 3.396,1.438
0.427,0.26
10
false
GND
| ECM Terminal Name | Between NE+ and NE- |
| Tester Range | 2 V/DIV., 20 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 25
0.115,1.417 0.469,1.615
0.354,0.198
10
false
GND
| ECM Terminal Name | Between VG and E2G |
| Tester Range | 1 V/DIV., 100 μs./DIV. |
| Condition | Ignition switch ON |
WAVEFORM 26
2.615,1 3.115,1.292
0.5,0.292
10
false
GND
| ECM Terminal Name | Between KNK1 and EKNK |
| Tester Range | 1 V/DIV., 1 ms./DIV. |
| Condition | Engine speed maintained at 2500 rpm after warming up engine |
- HINT:
- ·
The wavelength becomes shorter as the engine speed increases.
·The waveforms and amplitudes displayed differ slightly depending on the vehicle.
WAVEFORM 27
2.771,0.938 3.323,1.146
0.552,0.208
10
false
GND
| ECM Terminal Name | Between LSTM and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Multi-information display displaying "Close Fuel Lid" |
WAVEFORM 28
2.76,0.927 3.333,1.125
0.573,0.198
10
false
GND
| ECM Terminal Name | Between LSTM and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Multi-information display displaying "Ready to Refuel" |