RM38N0EC
_51
Engine / Hybrid System
_111785
M20C-FKS, M20D-FKS ENGINE CONTROL
_0504416
SFI SYSTEM
U
M20C-FKS, M20D-FKS ENGINE CONTROL SFI SYSTEM TERMINALS OF ECM
2.156,0.354 2.604,0.604
0.448,0.25
5.104,0.365 5.552,0.615
0.448,0.25
2.229,0.396 2.688,0.594
0.458,0.198
10
false
C115
5.177,0.406 5.635,0.604
0.458,0.198
10
false
A109
- 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 |
|---|---|---|---|
| A109-4 (CANH) - A109-22 (E1) | CAN communication line | Engine stopped, ignition switch ON | Pulse generation
(See waveform 1) |
| A109-5 (CANL) - A109-22 (E1) | CAN communication line | Engine stopped, ignition switch ON | Pulse generation
(See waveform 2) |
| A109-6 (CACH) - A109-22 (E1) | CAN communication line | Engine stopped, ignition switch ON | Pulse generation
(See waveform 1) |
| A109-7 (CACL) - A109-22 (E1) | CAN communication line | Engine stopped, ignition switch ON | Pulse generation
(See waveform 2) |
| A109-17 (ST1-) - A109-22 (E1) | Stop light switch assembly signal
(opposite to STP terminal) |
Ignition switch ON, brake pedal depressed | 0 to 1.5 V |
| Ignition switch ON, brake pedal released | 7.5 to 14 V | ||
| A109-18 (STA) - A109-22 (E1) | Starter assembly signal | Cranking | 6.0 V or higher |
| A109-21 (+B) - A109-22 (E1) | ·
Power source of ECM ·
Power source of throttle actuator |
Ignition switch ON | 11 to 14 V |
| A109-22 (E1) - Body ground | Ground | Always | Below 1 Ω |
| A109-26 (MREL) - A109-22 (E1) | EFI-MAIN NO. 1 relay operation signal | Ignition switch ON | Below 1.5 V |
| A109-27 (VPMP) - A109-22 (E1) | Vent valve (built into canister pump module) | Ignition switch ON | 11 to 14 V |
| A109-28 (MPMP) - A109-22 (E1) | Leak detection pump (canister pump module) | Leak detection pump OFF | Below 3 V |
| Leak detection pump ON | 11 to 14 V | ||
| A109-29 (EC) - Body ground | Ground | Always | Below 1 Ω |
| A109-30 (IGP) - A109-22 (E1) | Ignition signal | Ignition switch ON | 11 to 14 V |
| A109-31 (BATT) - A109-22 (E1) | Battery (for measuring battery voltage and ECM memory) | Always | 11 to 14 V |
| A109-33 (IGR) - A109-22 (E1) | Ignition signal | Ignition switch ON | 11 to 14 V |
| A109-34 (STP) - A109-22 (E1) | Stop light switch assembly signal | Brake pedal depressed | 7.5 to 14 V |
| Brake pedal released | 0 to 1.5 V | ||
| A109-51 (+B2) - A109-22 (E1) | Power source of ECM | Ignition switch ON | 11 to 14 V |
| A109-52 (E01) - Body ground | Ground | Always | Below 1 Ω |
| A109-56 (DMS-) - A109-22 (E1) | Drive mode select switch (combination switch assembly) signal | Ignition switch ON, drive mode select switch (combination switch assembly) in neutral position | 11 to 14 V |
| Ignition switch ON, drive mode select switch (combination switch assembly) pulled rearward | 0 to 1.5 V | ||
| A109-58 (DMS+) - A109-22 (E1) | Drive mode select switch (combination switch assembly) signal | Ignition switch ON, drive mode select switch (combination switch assembly) in neutral position | 11 to 14 V |
| Ignition switch ON, drive mode select switch (combination switch assembly) pushed forward | 0 to 1.5 V | ||
| A109-61 (FPC) - A109-22 (E1) | Fuel pump control | Ignition switch ON | Below 1.5 V |
| A109-65 (RFC) - A109-22 (E1) | Cooling fan control signal | Ignition switch ON, A/C switch on (max cool) | Pulse generation
(See waveform 3) |
| A109-66 (NEO) - A109-22 (E1) | Engine speed signal sent to other ECUs | Idling with warm engine | Pulse generation
(See waveform 4) |
| A109-67 (PLKC) - A109-22 (E1) | Shift lock release request signal | Ignition switch ON, brake pedal depressed | 11 to 14 V |
| Ignition switch ON, brake pedal released | 0 to 1.5 V | ||
| A109-72 (VCPP) - A109-71 (EPPM) | Power source for canister pressure sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| A109-73 (PPMP) - A109-71 (EPPM) | Canister pressure sensor (built into canister pump module) | Ignition switch ON | 3.0 to 3.6 V |
| A109-83 (E02) - Body ground | Ground | Always | Below 1 Ω |
| A109-84 (E03) - Body ground | Ground | Always | Below 1 Ω |
| A109-85 (VPA) - A109-86 (EPA) | Accelerator pedal position sensor signal (for engine control) | Ignition switch ON, accelerator pedal fully released | 0.5 to 1.1 V |
| Ignition switch ON, accelerator pedal fully depressed | 2.6 to 4.5 V | ||
| A109-87 (VCPA) - A109-86 (EPA) | Power source of accelerator pedal position sensor (for VPA) | Ignition switch ON | 4.5 to 5.5 V |
| A109-88 (VPA2) - A109-89 (EPA2) | Accelerator pedal position sensor signal | Ignition switch ON, accelerator pedal fully released | 1.2 to 2.0 V |
| Ignition switch ON, accelerator pedal fully depressed | 3.4 to 4.75 V | ||
| A109-90 (VCP2) - A109-89 (EPA2) | Power source of accelerator pedal position sensor (for VPA2) | Ignition switch ON | 4.5 to 5.5 V |
| A109-93 (SPD) - A109-22 (E1) | Vehicle speed signal from combination meter assembly | Driving at 20 km/h (12 mph) | Pulse generation
(See waveform 5) |
| C115-9 (HA1B) - A109-22 (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 6) |
||
| C115-10 (HA1A) - A109-22 (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 7) |
||
| C115-17 (#2D-) - A109-22 (E1) | Direct fuel injector assembly signal (No. 2 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-18 (#2D+) - A109-22 (E1) | Direct fuel injector assembly signal (No. 2 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-19 (#3D+) - A109-22 (E1) | Direct fuel injector assembly signal (No. 3 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-20 (#3D-) - A109-22 (E1) | Direct fuel injector assembly signal (No. 3 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-21 (#4D-) - A109-22 (E1) | Direct fuel injector assembly signal (No. 4 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-22 (#4D+) - A109-22 (E1) | Direct fuel injector assembly signal (No. 4 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-23 (#1D+) - A109-22 (E1) | Direct fuel injector assembly signal (No. 1 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-24 (#1D-) - A109-22 (E1) | Direct fuel injector assembly signal (No. 1 cylinder) | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 8) |
| C115-25 (FP1-) - A109-22 (E1) | Fuel pump assembly (for high pressure side) signal | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 9) |
| C115-26 (FP1+) - A109-22 (E1) | Fuel pump assembly (for high pressure side) signal | Idling with warm engine, Data List item "Injection Mode" displaying "Direct" | Pulse generation
(See waveform 9) |
| C115-27 (VOP+) - A109-22 (E1) | Oil pressure control valve operation signal | Idling with warm engine | Pulse generation
(See waveform 10) |
| C115-53 (VOP-) - A109-22 (E1) | Oil pressure control valve operation signal | Idling with warm engine | Pulse generation
(See waveform 10) |
| C115-34 (M-) - A109-22 (E1) | Throttle actuator operation signal (negative signal) | Idling with warm engine | Pulse generation
(See waveform 11) |
| C115-35 (M+) - A109-22 (E1) | Throttle actuator operation signal (positive terminal) | Idling with warm engine | Pulse generation
(See waveform 12) |
| C115-36 (#40) - A109-22 (E1) | Port fuel injector assembly signal (No. 4 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 13) |
| C115-37 (#30) - A109-22 (E1) | Port fuel injector assembly signal (No. 3 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 13) |
| C115-38 (#20) - A109-22 (E1) | Port fuel injector assembly signal (No. 2 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 13) |
| C115-39 (#10) - A109-22 (E1) | Port fuel injector assembly signal (No. 1 cylinder) | Idling with warm engine (Data List item "Injection Mode" displaying "Port") | Pulse generation
(See waveform 13) |
| C115-40 (+BD3) - A109-22 (E1) | Power source of ECU (injector driver) | Ignition switch ON | 11 to 14 V |
| C115-41 (+BD2) - A109-22 (E1) | Power source of ECU (injector driver) | Ignition switch ON | 11 to 14 V |
| C115-42 (+BD1) - A109-22 (E1) | Power source of ECU (injector driver) | Ignition switch ON | 11 to 14 V |
| C115-69 (EGA+) - A109-22 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 14) |
| C115-70 (EGA-) - A109-22 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 14) |
| C115-71 (EGB-) - A109-22 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 14) |
| C115-72 (EGB+) - A109-22 (E1) | EGR valve assembly operation signal | Idling with warm engine | Pulse generation
(See waveform 14) |
| C115-91 (WSV2) - A109-22 (E1) | Flow shutting valve (for CVT) operation signal | Ignition switch ON | 11 to 14 V |
| C115-92 (WSV1) - A109-22 (E1) | Flow shutting valve (for heater) operation signal | Ignition switch ON | 11 to 14 V |
| C115-94 (OE1+) - C115-93 (OE1-) | Cam timing oil control solenoid assembly operation signal | Idling | Pulse generation
(See waveform 15) |
| C115-102 (PRG) - A109-22 (E1) | Purge VSV operation signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine, under purge control | Pulse generation
(See waveform 16) |
||
| C115-103 (WPO) - A109-22 (E1) | Electric water pump assembly signal | Idling with warm engine | Pulse generation
(See waveform 17) |
| C115-104 (IGT4) - A109-22 (E1) | No. 4 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 18) |
| C115-105 (IGT3) - A109-22 (E1) | No. 3 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 18) |
| C115-106 (IGT2) - A109-22 (E1) | No. 2 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 18) |
| C115-107 (IGT1) - A109-22 (E1) | No. 1 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 18) |
| C115-108 (ACM) - A109-22 (E1) | Vacuum switching valve (for active control engine mount system) operation signal | Ignition switch ON | 11 to 14 V |
| C115-109 (EMR1) - A109-22 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 19) |
| C115-110 (EMF1) - A109-22 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 19) |
| C115-111 (EMD1) - A109-22 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 20) |
| C115-112 (EDT1) - A109-22 (E1) | Cam timing control motor with EDU assembly signal | Idling with warm engine | Pulse generation
(See waveform 21) |
| C115-127 (VTA2) - C115-157 (ETA) | Throttle position sensor signal (for sensor malfunction detection) | Ignition switch ON, accelerator pedal fully released | 2.1 to 3.1 V |
| Accelerator pedal fully depressed (engine running) | 4.6 to 5.0 V | ||
| C115-128 (VSPE) - C115-163 (ESPE) | Power source of differential pressure sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-129 (VCNE) - A109-22 (E1) | Power source of crankshaft position sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-130 (VCE1) - A109-22 (E1) | Power source of camshaft position sensor (for exhaust camshaft) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-132 (EV1+) - C115-131 (EV1-) | Camshaft position sensor (for exhaust camshaft) signal | Idling with warm engine | Pulse generation
(See waveform 22) |
| C115-133 (NE+) - C115-99 (NE-) | Crankshaft position sensor signal | Idling with warm engine | Pulse generation
(See waveform 23) |
| C115-134 (WPI) - A109-22 (E1) | Electric water pump assembly signal | Idling with warm engine | Pulse generation
(See waveform 24) |
| C115-135 (VG) - C115-136 (E2G) | Mass air flow meter sub-assembly signal | Ignition switch ON | Pulse generation
(See waveform 25) |
| C115-137 (VCVG) - A109-22 (E1) | Power source of mass air flow meter sub-assembly (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-138 (A1B-) - A109-22 (E1) | Air fuel ratio sensor (sensor 2) signal | Ignition switch ON | 1.09 to 3.33 V |
| C115-139 (A1B+) - A109-22 (E1) | Air fuel ratio sensor (sensor 2) signal | Ignition switch ON | 1.43 to 4.81 V |
| C115-140 (THCO) - C115-170 (ETCO) | No. 2 exhaust gas temperature sensor | Engine warmed up, idling | 0.2 to 4.95 V |
| C115-141 (THW) - C115-171 (ETHW) | Engine coolant temperature sensor signal | Idling, engine coolant temperature 75 to 100°C (167 to 212°F) | 0.2 to 1.0 V |
| C115-142 (THCI) - C115-172 (ETCI) | No. 1 exhaust gas temperature sensor | Engine warmed up, idling | 0.2 to 4.95 V |
| C115-144 (VCPM) - C115-143 (EPIM) | Power source of manifold absolute pressure sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-146 (VCPE) - C115-145 (EPEO) | Power source of engine oil pressure and temperature sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-147 (VCPF) - A109-22 (E1) | Power source of No. 2 fuel pressure sensor (for low pressure side) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-149 (PFL) - C115-148 (EPFL) | No. 2 fuel pressure sensor (for low pressure side) signal | Idling with warm engine | 0.75 to 4.5 V |
| C115-155 (KNK1) - C115-156 (EKNK) | Knock control sensor signal | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation
(See waveform 26) |
| C115-158 (VCTA) - C115-157 (ETA) | Power source of throttle position sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-159 (VTA1) - C115-157 (ETA) | Throttle position sensor signal (for engine control) | Ignition switch ON, accelerator pedal fully released | 0.6 to 1.1 V |
| Accelerator pedal fully depressed (engine running) | 3.2 to 4.8 V | ||
| C115-160 (VCV1) - A109-22 (E1) | Power source of camshaft position sensor (for intake camshaft) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C115-162 (VV1+) - C115-161 (VV1-) | Camshaft position sensor (for intake camshaft) signal | Idling with warm engine | Pulse generation
(See waveform 22) |
| C115-164 (PESE) - C115-163 (ESPE) | Differential pressure sensor | Ignition switch ON | Pulse generation |
| C115-165 (THA) - C115-136 (E2G) | Intake air temperature sensor (mass air flow meter sub-assembly) signal | Idling, intake air temperature 0 to 80°C (32 to 176°F) | 0.5 to 3.4 V |
| C115-168 (A1A-) - A109-22 (E1) | Air fuel ratio sensor (sensor 1) signal | Ignition switch ON | 1.19 to 2.81 V |
| C115-169 (A1A+) - A109-22 (E1) | Air fuel ratio sensor (sensor 1) signal | Ignition switch ON | 1.32 to 3.36 V |
| C115-173 (PIM) - C115-143 (EPIM) | Manifold absolute pressure sensor signal | Ignition switch ON | 3.0 to 4.5 V |
| C115-175 (PEO) - C115-145 (EPEO) | Engine oil pressure and temperature sensor signal | Idling with warm engine | 0.5 to 4.5 V |
| C115-176 (THEO) - C115-145 (EPEO) | Engine oil pressure and temperature sensor signal | Ignition switch ON | 0.14 to 4.93 V |
| C115-177 (PR) - C115-178 (EPR) | Fuel pressure sensor (for high pressure side) signal | Idling with warm engine | 0.5 to 4.5 V |
| C115-179 (VCPR) - C115-178 (EPR) | Power source of fuel pressure sensor (for high pressure side) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
WAVEFORM 1
2.75,0.292 3.354,0.583
0.604,0.292
10
1 V/DIV.
3.01,1.396 3.344,1.708
0.333,0.313
10
GND
1.604,1.896 2.479,2.125
0.875,0.229
10
10 μs./DIV.
| ECM Terminal Name | Between CANH and E1
Between CACH 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
2.76,0.271 3.375,0.531
0.615,0.26
10
1 V/DIV.
3.01,1.365 3.375,1.604
0.365,0.24
10
GND
1.625,1.865 2.583,2.052
0.958,0.188
10
10 μs./DIV.
| ECM Terminal Name | Between CANL and E1
Between CACL 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 3
2.76,1.563 3.115,1.792
0.354,0.229
10
false
GND
2.615,0.24 3.26,0.521
0.646,0.281
10
false
1 V/DIV.
1.344,1.854 2.208,2.083
0.865,0.229
10
false
20 ms./DIV.
| ECM Terminal Name | Between RFC and E1 |
| Tester Range | 1 V/DIV., 20 ms./DIV. |
| Condition | Ignition switch ON, A/C switch on (max cool) |
- HINT:
-
The duty ratio varies depending on the engine coolant temperature.
WAVEFORM 4
2.594,1.656 3.052,1.854
0.458,0.198
10
false
GND
2.458,0.302 3.177,0.531
0.719,0.229
10
false
2 V/DIV.
1.167,1.927 2,2.135
0.833,0.208
10
false
2 ms./DIV.
| ECM Terminal Name | Between NEO and E1 |
| Tester Range | 2 V/DIV., 2 ms./DIV. |
| Condition | Idling with warm engine |
- HINT:
-
The wavelength becomes shorter as the engine speed increases.
WAVEFORM 5
2.677,0.125 3.354,0.385
0.677,0.26
10
false
2 V/DIV.
2.833,1.229 3.25,1.531
0.417,0.302
10
false
GND
1.156,1.99 2.219,2.167
1.063,0.177
10
false
20 ms./DIV.
| ECM Terminal Name | Between SPD and E1 |
| Tester Range | 2 V/DIV., 20 ms./DIV. |
| Condition | Driving at 20 km/h (12 mph) |
- HINT:
-
The wavelength becomes shorter as the vehicle speed increases.
WAVEFORM 6
2.594,0.063 3.208,0.375
0.615,0.313
10
5 V/DIV.
2.688,0.896 3.104,1.24
0.417,0.344
10
GND
1.219,1.854 1.979,2.031
0.76,0.177
10
10 ms./DIV.
| ECM Terminal Name | Between HA1B and E1 |
| Tester Range | 5 V/DIV., 10 ms./DIV. |
| Condition | Idling with cold engine |
WAVEFORM 7
2.594,0.063 3.208,0.375
0.615,0.313
10
5 V/DIV.
2.688,0.896 3.104,1.24
0.417,0.344
10
GND
1.219,1.854 1.979,2.031
0.76,0.177
10
10 ms./DIV.
| ECM Terminal Name | Between HA1A and E1 |
| Tester Range | 5 V/DIV., 10 ms./DIV. |
| Condition | Idling with cold engine |
WAVEFORM 8
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
1.208,1.896 2.031,2.146
0.823,0.25
10
false
200 μs./DIV.
2.667,0.094 3.354,0.5
0.688,0.406
10
false
50 V/DIV.
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 9
2.771,0.094 3.406,0.438
0.635,0.344
10
false
20 V/DIV.
1.26,1.885 2.573,2.177
1.313,0.292
10
false
500 μs./DIV.
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 10
2.708,0.115 3.281,0.49
0.573,0.375
10
false
5 V/DIV.
1.313,1.885 2.479,2.135
1.167,0.25
10
false
20 ms./DIV.
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 11
2.854,1 3.323,1.354
0.469,0.354
10
GND
2.625,0.313 3.323,0.594
0.698,0.281
10
5 V/DIV.
0.479,0.625 0.844,0.875
0.365,0.25
10
M-
1.417,1.802 2.573,2.052
1.156,0.25
10
1 ms./DIV.
| 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 12
2.854,0.99 3.313,1.302
0.458,0.313
10
GND
2.635,0.26 3.313,0.552
0.677,0.292
10
5 V/DIV.
0.521,0.656 0.99,0.948
0.469,0.292
10
M+
1.396,1.802 2.281,2.021
0.885,0.219
10
1 ms./DIV.
| 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 13
0.656,1.583 1.115,1.781
0.458,0.198
10
false
GND
0.396,0.115 1.063,0.344
0.667,0.229
10
false
20 V/DIV.
1.833,1.896 2.646,2.083
0.813,0.188
10
false
20 ms./DIV.
| 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 14
2.688,0.073 3.302,0.427
0.615,0.354
10
false
5 V/DIV.
1.344,1.896 2.563,2.156
1.219,0.26
10
false
5 μs./DIV.
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 15
0.604,0.26 1.563,0.573
0.958,0.313
10
5 V/DIV.
0.51,1.125 1.021,1.385
0.51,0.26
10
GND
1.729,1.844 2.583,2.063
0.854,0.219
10
1 ms./DIV.
| ECM Terminal Name | Between OE1+ and OE1- |
| Tester Range | 5 V/DIV., 1 ms./DIV. |
| Condition | Idling |
WAVEFORM 16
2.677,0.208 3.344,0.51
0.667,0.302
10
10 V/DIV.
2.802,0.938 3.292,1.26
0.49,0.323
10
GND
1.26,1.771 2.25,2.021
0.99,0.25
10
20 ms./DIV.
| 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 17
2.987,1.794 3.317,1.950
0.330,0.156
10
GND
1.269,2.584 2.024,2.772
0.756,0.188
10
20 ms./DIV.
2.394,0.238 2.939,0.405
0.545,0.167
10
5 V/DIV.
| 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
2.771,0.135 3.385,0.313
0.615,0.177
10
false
5 V/DIV.
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
2.052,1.885 2.813,2.073
0.76,0.188
10
false
20 ms./DIV.
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 19
2.833,1.844 3.292,2.042
0.458,0.198
10
false
GND
2.625,0.729 3.281,0.958
0.656,0.229
10
false
2 V/DIV.
1.333,2.573 2.281,2.813
0.948,0.24
10
false
5 ms./DIV.
| ECM Terminal Name | Between EMR1 and E1
Between EMF1 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 20
2.833,1.823 3.333,2.021
0.5,0.198
10
false
GND
1.177,2.521 2.302,2.771
1.125,0.25
10
false
100 ms./DIV.
2.667,0.677 3.302,0.927
0.635,0.25
10
false
2 V/DIV.
| ECM Terminal Name | Between EMD1 and E1 |
| Tester Range | 2 V/DIV., 100 ms./DIV. |
| Condition | Idling with warm engine |
WAVEFORM 21
2.844,1.802 3.302,2
0.458,0.198
10
false
GND
2.667,0.729 3.302,0.938
0.635,0.208
10
false
1 V/DIV.
1.344,2.521 2.281,2.823
0.938,0.302
10
false
5 ms./DIV.
| ECM Terminal Name | Between EDT1 and E1 |
| Tester Range | 1 V/DIV., 5 ms./DIV. |
| Condition | Idling with warm engine |
WAVEFORM 22
0.052,0.031 0.656,0.188
0.604,0.156
10
5 V/DIV.
0.167,0.656 0.49,0.823
0.323,0.167
10
CH1
0.156,1.448 0.479,1.615
0.323,0.167
10
CH2
0.094,0.844 0.49,1.052
0.396,0.208
10
(VV1)
0.083,1.604 0.479,1.833
0.396,0.229
10
(EV1)
3.052,0.813 3.396,0.958
0.344,0.146
10
GND
3.052,1.573 3.396,1.719
0.344,0.146
10
GND
1.271,1.865 2.021,2.042
0.75,0.177
10
20 ms./DIV.
| 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 23
2.969,1.177 3.396,1.438
0.427,0.26
10
GND
0.083,0.073 0.698,0.292
0.615,0.219
10
2 V/DIV.
1.229,1.875 2.25,2.104
1.021,0.229
10
20 ms./DIV.
| 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 24
2.987,1.794 3.317,1.950
0.330,0.156
10
GND
1.269,2.584 2.024,2.772
0.756,0.188
10
20 ms./DIV.
2.394,0.238 2.939,0.405
0.545,0.167
10
5 V/DIV.
| 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 25
0.115,1.417 0.469,1.615
0.354,0.198
10
false
GND
1.406,1.958 2.188,2.156
0.781,0.198
10
false
100 μs./DIV.
2.813,0.167 3.406,0.375
0.594,0.208
10
false
1 V/DIV.
| ECM Terminal Name | Between VG and E2G |
| Tester Range | 1 V/DIV., 100 μs./DIV. |
| Condition | Ignition switch ON |
WAVEFORM 26
2.427,0.521 3.208,0.865
0.781,0.344
10
1 V/DIV.
2.615,1 3.115,1.292
0.5,0.292
10
GND
1.115,1.865 2.01,2.083
0.896,0.219
10
1 ms./DIV.
| 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 engine |
- HINT:
- ·
The wavelength becomes shorter as the engine speed increases.
·The waveforms and amplitudes displayed differ slightly depending on the vehicle.