2ZR-FE ENGINE CONTROL SFI SYSTEM TERMINALS OF ECM
2.552,0.406 2.927,0.635
0.375,0.229
5.854,0.406 6.229,0.635
0.375,0.229
2.625,0.427 2.948,0.594
0.323,0.167
10
false
B33
5.927,0.427 6.25,0.594
0.323,0.167
10
false
A40
- 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) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A40-1 (BATT) - B33-16 (E1) | P - BR | Battery (for measuring battery voltage and for ECM memory) | Always | 11 to 14 V |
| A40-2 (+B) - B33-16 (E1) | B - BR | Power source of ECM | Ignition switch ON | 11 to 14 V |
| A40-3 (+B2) - B33-16 (E1) | B - BR | Power source of ECM | Ignition switch ON | 11 to 14 V |
| A40-4 (ELS1) - B33-16 (E1) | G - BR | Electric load signal | Light control switch in tail position | 11 to 14 V |
| A40-9 (STP) - B33-16 (E1) | L - BR | Stop light switch assembly signal | Brake pedal depressed | 7.5 to 14 V |
| Brake pedal released | Below 1.5 V | |||
| A40-10 (ST1-) - B33-16 (E1) | R - BR | Stop light switch assembly signal
(opposite of voltage at STP terminal) |
Ignition switch ON, brake pedal depressed | Below 1.5 V |
| Ignition switch ON, brake pedal released | 7.5 to 14 V | |||
| A40-13 (CANH) - B33-16 (E1) | B - BR | CAN communication line | Ignition switch ON | Pulse generation
(See waveform 1) |
| A40-17 (ELS2) - B33-16 (E1) | L - BR | Electric load signal | Rear window defogger switch on | 11 to 14 V |
| Rear window defogger switch off | Below 1.5 V | |||
| A40-21 (FC) - B33-16 (E1) | R - BR | Fuel pump control | Ignition switch ON | 11 to 14 V |
| Idling | Below 1.5 V | |||
| A40-22 (STA) - B33-16 (E1) | LG - BR | Starter assembly signal | Cranking | 6 V or higher |
| A40-23 (TC) - B33-16 (E1) | P - BR | Terminal TC of DLC3 | Ignition switch ON | 11 to 14 V |
| A40-26 (CANL) - B33-16 (E1) | W - BR | CAN communication line | Ignition switch ON | Pulse generation
(See waveform 2) |
| A40-27 (W) - B33-16 (E1) | LG - BR | Malfunction Indicator Lamp (MIL) operation signal | Ignition switch ON (MIL goes on) | Below 1.5 V |
| Idling with warm engine | 11 to 14 V | |||
| A40-31 (TACH) - B33-16 (E1) | GR - BR | Engine speed signal | Idling with warm engine | Pulse generation
(See waveform 3) |
| A40-37 (IGSW) - B33-16 (E1) | B - BR | Ignition switch signal | Ignition switch ON | 11 to 14 V |
| A40-44 (SPD) - B33-16 (E1) | V - BR | Vehicle speed signal from combination meter assembly signal | Driving at 20 km/h (12 mph) | Pulse generation
(See waveform 4) |
| A40-45 (RFC) - B33-16 (E1) | R - BR | Cooling fan control signal | Ignition switch ON, A/C switch on (max cool) | Pulse generation
(See waveform 5) |
| A40-46 (MREL) - B33-16 (E1) | L - BR | EFI-MAIN relay operation signal | Ignition switch ON | 11 to 14 V |
| Ignition switch off | Below 1.5 V | |||
| A40-50 (EC) - Body ground | BR - Body ground | Earth (ground) circuit of ECM | Always | Below 1 Ω |
| A40-51 (VPA) - A40-52 (EPA) | W - Y | 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 | |||
| A40-53 (VCPA) - A40-52 (EPA) | B - Y | Power source of accelerator pedal position sensor (for VPA) | Ignition switch ON | 4.5 to 5.5 V |
| A40-54 (VPA2) - A40-55 (EPA2) | R - P | 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 | |||
| A40-56 (VCP2) - A40-55 (EPA2) | L - P | Power source of accelerator pedal position sensor (for VPA2) | Ignition switch ON | 4.5 to 5.5 V |
| B33-16 (E1) - Body ground | BR - Body ground | Earth (ground) circuit of ECM | Always | Below 1 Ω |
| B33-17 (#20) - B33-51 (E01) | Y - W-B | No. 2 fuel injector assembly signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine | Pulse generation
(See waveform 6) |
|||
| B33-18 (#30) - B33-51 (E01) | G - W-B | No. 3 fuel injector assembly signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine | Pulse generation
(See waveform 6) |
|||
| B33-19 (#40) - B33-51 (E01) | W - W-B | No. 4 fuel injector assembly signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine | Pulse generation
(See waveform 6) |
|||
| B33-20 (#10) - B33-51 (E01) | B - W-B | No. 1 fuel injector assembly signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine | Pulse generation
(See waveform 6) |
|||
| B33-21 (E02) - Body ground | W-B - Body ground | Earth (ground) circuit of ECM | Always | Below 1 Ω |
| B33-22 (HT1B) - B33-16 (E1) | L - BR | Heated oxygen sensor heater operation signal | Ignition switch ON | 11 to 14 V |
| Idling before warming up heated oxygen sensor | Below 3.0 V | |||
| B33-23 (HA1A) - B33-52 (E04) | R - W-B | Air fuel ratio sensor heater operation signal | Ignition switch ON | 11 to 14 V |
| Idling before warming up air fuel ratio sensor | Pulse generation
(See waveform 7) |
|||
| B33-29 (+BM) - B33-16 (E1) | B - BR | Power source of throttle actuator | Always | 11 to 14 V |
| B33-30 (M-) - B33-59 (ME01) | P - W-B | Throttle actuator operation signal (negative signal) | Idling with warm engine | Pulse generation
(See waveform 8) |
| B33-50 (ACIS) - B33-16 (E1) | Y - BR | Duty vacuum switching valve (for acoustic control induction system) operation signal | Ignition switch ON | 11 to 14 V |
| B33-51 (E01) - Body ground | W-B - Body ground | Earth (ground) circuit of ECM | Always | Below 1 Ω |
| B33-52 (E04) - Body ground | W-B - Body ground | Earth (ground) circuit of ECM | Always | Below 1 Ω |
| B33-54 (IGT4) - B33-16 (E1) | W - BR | No. 4 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 9) |
| B33-55 (IGT3) - B33-16 (E1) | G - BR | No. 3 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 9) |
| B33-56 (IGT2) - B33-16 (E1) | B - BR | No. 2 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 9) |
| B33-57 (IGT1) - B33-16 (E1) | R - BR | No. 1 ignition coil assembly signal
(ignition signal) |
Idling with warm engine | Pulse generation
(See waveform 9) |
| B33-58 (GE01) - Body ground | BR - Body ground | Shielded earth (ground) circuit of throttle actuator | Always | Below 1 Ω |
| B33-59 (ME01) - Body ground | W-B - Body ground | Earth (ground) circuit of ECM | Always | Below 1 Ω |
| B33-60 (M+) - B33-59 (ME01) | V - W-B | Throttle actuator operation signal (positive terminal) | Idling with warm engine | Pulse generation
(See waveform 10) |
| B33-63 (NSW)*2 - B33-16 (E1) | W - BR | Park/Neutral position switch assembly signal | Ignition switch ON, shift lever not in P or N | 11 to 14 V |
| Ignition switch ON, shift lever in P or N | Below 1.0 V | |||
| B33-65 (OE1+) - B33-64 (OE1-) | G - P | Camshaft timing oil control valve assembly (for exhaust camshaft) operation signal | Idling | Pulse generation
(See waveform 11) |
| B33-75 (OC1+) - B33-74 (OC1-) | B - Y | Camshaft timing oil control valve assembly (for intake camshaft) operation signal | Idling | Pulse generation
(See waveform 12) |
| B33-76 (PRG) - B33-16 (E1) | L - BR | Purge VSV operation signal | Ignition switch ON | 11 to 14 V |
| Idling with warm engine, under purge control | Pulse generation
(See waveform 13) |
|||
| B33-78 (NE+) - B33-110 (NE-) | R - G | Crankshaft position sensor signal | Idling with warm engine | Pulse generation
(See waveform 14) |
| B33-80 (EV1+) - B33-112 (EV1-) | P - B | Camshaft position sensor (for exhaust camshaft) signal | Idling with warm engine | Pulse generation
(See waveform 15) |
| B33-81 (D)*3 - B33-16 (E1) | GR - BR | Clutch pedal switch (upper switch) signal | Ignition switch ON, clutch pedal fully depressed | Below 1.0 V |
| Ignition switch ON, clutch pedal fully released | 11 to 14 V | |||
| B33-82 (VV1+) - B33-114 (VV1-) | B - P | Camshaft position sensor (for intake camshaft) signal | Idling with warm engine | Pulse generation
(See waveform 15) |
| B33-83 (VTA2) - B33-116 (ETA) | R - L | Throttle position sensor signal (for sensor malfunction detection) | Ignition switch ON, accelerator pedal fully released | 2.1 to 3.1 V |
| Ignition switch ON, accelerator pedal fully depressed | 4.6 to 5.0 V | |||
| B33-84 (VTA1) - B33-116 (ETA) | LG - L | Throttle 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 | 3.2 to 4.8 V | |||
| B33-90 (THA) - B33-122 (ETHA) | L - W | Intake air temperature sensor signal | Idling with warm engine, intake air temperature 0 to 80°C (32 to 176°F) | 0.5 to 3.4 V |
| B33-91 (VG) - B33-92 (E2G) | V - B | Mass air flow meter sub-assembly signal | Idling with warm engine, shift lever in P or N (neutral), A/C switch off | 0.5 to 3.0 V |
| B33-93 (THW) - B33-94 (ETHW) | B - BR | Engine coolant temperature sensor signal | Idling with warm engine, engine coolant temperature 75 to 100°C (167 to 212°F) | 0.2 to 1.0 V |
| B33-100 (ALT) - B33-16 (E1) | L - BR | Generator assembly signal | Ignition switch ON | 11 to 14 V |
| B33-102 (IGF1) - B33-16 (E1) | Y - BR | Ignition coil assembly
(ignition confirmation signal) |
Ignition switch ON | 4.5 to 5.5 V |
| Idling with warm engine | Pulse generation
(See waveform 9) |
|||
| B33-103 (OX1B) - B33-135 (EX1B) | B - Y | Heated oxygen sensor signal | Engine speed maintained at 2500 rpm for 2 minutes after warming up engine | Pulse generation
(See waveform 16) |
| B33-111 (VCE1) - B33-16 (E1) | W - BR | Power source of camshaft position sensor (for exhaust camshaft) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| B33-113 (VCV1) - B33-16 (E1) | W - BR | Power source of camshaft position sensor (for intake camshaft) (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| B33-115 (VCTA) - B33-116 (ETA) | G - L | Power source for throttle position sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| B33-123 (KNK1) - B33-124 (EKNK) | B - W | Knock control sensor signal | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation
(See waveform 17) |
| B33-133 (A1A+) - B33-16 (E1) | Y - BR | Air fuel ratio sensor signal | Ignition switch ON | 3.3 V*1 |
| B33-134 (A1A-) - B33-16 (E1) | L - BR | Air fuel ratio sensor signal | Ignition switch ON | 2.9 V*1 |
*1: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
*2: for CVT Models.
*3: for M/T Models.
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 |
| Tester Range | 1 V/DIV., 10 μs./DIV. |
| Condition | 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 |
| Tester Range | 1 V/DIV., 10 μs./DIV. |
| Condition | Ignition switch ON |
- HINT:
-
The waveform varies depending on the CAN communication signal.
WAVEFORM 3
0.438,0.313 1.167,0.625
0.729,0.313
10
5 V/DIV.
0.448,1.177 0.896,1.458
0.448,0.281
10
GND
1.688,1.885 2.708,2.104
1.021,0.219
10
10 ms./DIV.
| 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 4
2.677,0.125 3.354,0.385
0.677,0.26
10
5 V/DIV.
2.833,1.229 3.25,1.531
0.417,0.302
10
GND
1.156,1.99 2.219,2.167
1.063,0.177
10
20 ms./DIV.
| ECM Terminal Name | Between SPD and E1 |
| Tester Range | 5 V/DIV., 20 ms./DIV. |
| Condition | Driving at 20 km/h (12 mph) |
- HINT:
-
The wavelength becomes shorter as the vehicle speed increases.
WAVEFORM 5
2.76,1.563 3.115,1.792
0.354,0.229
10
GND
0.063,0.063 0.708,0.344
0.646,0.281
10
1 V/DIV.
1.344,1.854 2.208,2.083
0.865,0.229
10
2 ms./DIV.
| ECM Terminal Name | Between RFC and E1 |
| Tester Range | 1 V/DIV., 2 ms./DIV. |
| Condition | Ignition switch ON, A/C switch on (max cool) |
- HINT:
-
The duty ratio varies depending on the engine coolant temperature.
WAVEFORM 6
0.677,1.583 1.135,1.781
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 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 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 E04 |
| Tester Range | 5 V/DIV., 10 ms./DIV. |
| Condition | Idling before warming up air fuel ratio sensor |
WAVEFORM 8
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 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
2.906,1 3.333,1.25
0.427,0.25
10
GND
2.896,1.615 3.292,1.833
0.396,0.219
10
GND
0.104,0.688 0.448,1.073
0.344,0.385
10
CH1 (IGT)
0.104,1.198 0.448,1.594
0.344,0.396
10
CH2 (IGF)
1.281,1.896 2.052,2.073
0.771,0.177
10
20 ms./DIV.
0.042,0.115 0.708,0.281
0.667,0.167
10
2 V/DIV.
| 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 10
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 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 11
0.604,0.26 1.563,0.573
0.958,0.313
10
5 V/DIV.
0.51,1.115 1.021,1.375
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 12
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 OC1+ and OC1- |
| Tester Range | 5 V/DIV., 1 ms./DIV. |
| Condition | Idling |
WAVEFORM 13
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 14
2.978,0.968 3.319,1.135
0.34,0.167
10
GND
1.157,1.862 1.903,2.029
0.747,0.167
10
20 ms./DIV.
0.134,0.04 0.672,0.207
0.538,0.167
10
5 V/DIV.
| ECM Terminal Name | 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 15
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 16
0.51,0.219 1.292,0.521
0.781,0.302
10
0.2 V/DIV.
0.573,1.479 1.021,1.76
0.448,0.281
10
GND
1.802,1.875 2.771,2.115
0.969,0.24
10
200 ms./DIV.
| 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 warming up engine |
- HINT:
-
In the Data List, the items O2S B1S2 show the values input to the ECM from the heated oxygen sensor.
WAVEFORM 17
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 condition.