СИСТЕМА SFI КОНТАКТЫ ECM

Информация добавлена 08-08-2017


  1. CHECK ECM

    A01A7ZSN04

    Tech Tips

    The standard 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 result of checks should be compared with the standard voltage for that pair of terminals, which is 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
    G106-24 (BATT) - C30-12 (E1) L - BR Battery (for measuring the battery voltage and for the ECM memory) Always 11 to 14 V
    G106-22 (+B) - C30-12 (E1) W - BR Power source of ECM Engine switch on (IG) 11 to 14 V
    G106-23 (+B2) - C30-12 (E1) W - BR Power source of ECM Engine switch on (IG) 11 to 14 V
    C30-23 (+BM) - C30-12 (E1) GR - BR Power source of throttle actuator Always 11 to 14 V
    G106-9 (MREL) - C30-12 (E1) V - BR EFI relay operation signal Engine switch on (IG) 11 to 14 V
    C28-15 (VCV1) - C30-12 (E1) P-L - BR Power source for sensors (specific voltage) Idling with warm engine 4.5 to 5.5 V
    C28-16 (VCV2) - C30-12 (E1) LG-B - BR Power source for sensors (specific voltage) Idling with warm engine 4.5 to 5.5 V
    G107-21 (IGSW) - C30-12 (E1) W - BR Engine switch signal Engine switch on (IG) 11 to 14 V
    G107-18 (STP) - C30-12 (E1) V - BR Stop light switch assembly signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released Below 1.5 V
    G106-8 (ST1-) - C30-12 (E1) B - BR Stop light switch assembly signal (opposite to STP terminal) Engine switch on (IG), brake pedal depressed Below 1.5 V
    Engine switch on (IG), brake pedal released 7.5 to 14 V
    G107-4 (VCPA) - G107-3 (EPA) LG - P Power source of accelerator pedal position sensor (for VPA) Engine switch on (IG) 4.5 to 5.5 V
    G107-2 (VCP2) - G107-1 (EPA2) R - W Power source of accelerator pedal position sensor (for VPA2) Engine switch on (IG) 4.5 to 5.5 V
    G107-6 (VPA) - G107-3 (EPA) L- P Accelerator pedal position sensor signal (for engine control) Engine switch on (IG), accelerator pedal fully released 0.5 to 1.1 V
    Engine switch on (IG), accelerator pedal fully depressed 2.6 to 4.5 V
    G107-5 (VPA2) - G107-1 (EPA2) GR - W Accelerator pedal position sensor signal (for sensor malfunction detection) Engine switch on (IG), accelerator pedal fully released 1.2 to 2.0 V
    Engine switch on (IG), accelerator pedal fully depressed 3.4 to 4.75 V
    C30-13 (VCTA) - C30-14 (ETA) L - W Power source for throttle position sensor (specific voltage) Idling with warm engine 4.5 to 5.5 V
    C30-15 (VTA1) - C30-14 (ETA) LG - W Throttle position sensor signal (for engine control) Engine switch on (IG), accelerator pedal fully released 0.5 to 1.1 V
    Engine switch on (IG), accelerator pedal fully depressed 3.2 to 4.8 V
    C30-16 (VTA2) - C30-14 (ETA) G-W - W Throttle position sensor signal (for sensor malfunction detection) Engine switch on (IG), accelerator pedal fully released 2.1 to 3.1 V
    Engine switch on (IG), accelerator pedal fully depressed 4.6 to 5.0 V
    G107-28 (TC) - C30-12 (E1) V - BR Terminal TC of DLC3 Engine switch on (IG) 11 to 14 V
    G107-29 (TACH) - C30-12 (E1) P - BR Engine speed signal (for combination meter assembly) Idling Pulse generation(see waveform 1)
    G106-18 (SPD) - C30-12 (E1) R - BR Vehicle speed signal from combination meter assembly Driving at 20 km/h (12 mph) Pulse generation(see waveform 2)
    G106-13 (W) - C30-12 (E1) V - BR Malfunction Indicator Lamp (MIL) operation signal Engine switch on (IG)(MIL goes on) Below 3.0 V
    Idling with warm engine 11 to 14 V
    C31-6 (#10) - C31-14 (E01) L - W-B No. 1 fuel injector assembly signal Engine switch on (IG) 11 to 14 V
    Idling Pulse generation(see waveform 3)
    C31-1 (#20) - C31-14 (E01) B - W-B No. 2 fuel injector assembly signal Engine switch on (IG) 11 to 14 V
    Idling Pulse generation(see waveform 3)
    C31-7 (#30) - C31-14 (E01) R - W-B No. 3 fuel injector assembly signal Engine switch on (IG) 11 to 14 V
    Idling Pulse generation(see waveform 3)
    C31-2 (#40) - C31-14 (E01) G - W-B No. 4 fuel injector assembly signal Engine switch on (IG) 11 to 14 V
    Idling Pulse generation(see waveform 3)
    C31-8 (#50) - C31-14 (E01) Y - W-B No. 5 fuel injector assembly signal Engine switch on (IG) 11 to 14 V
    Idling Pulse generation(see waveform 3)
    C31-3 (#60) - C31-14 (E01) R-L - W-B No. 6 fuel injector assembly signal Engine switch on (IG) 11 to 14 V
    Idling Pulse generation(see waveform 3)
    G107-10 (STA) - C30-12 (E1) W - BR ST relay operation signal Cranking 11 to 14 V
    C29-19 (OC1+) - C29-20 (OC1-) G-Y - L-B Camshaft timing oil control valve assembly (for intake camshaft of bank 1) operation signal Idling Pulse generation(see waveform 4)
    C28-19 (OC2+) - C28-20 (OC2-) L-W - L-R Camshaft timing oil control valve assembly (for intake camshaft of bank 2) operation signal Idling Pulse generation(see waveform 4)
    C29-21 (OE1+) - C29-22 (OE1-) G-B - B-R Camshaft timing oil control valve assembly (for exhaust camshaft of bank 1) operation signal Idling Pulse generation(see waveform 5)
    C28-21 (OE2+) - C28-22 (OE2-) W-G - L Camshaft timing oil control valve assembly (for exhaust camshaft of bank 2) operation signal Idling Pulse generation(see waveform 5)
    C28-9 (VV1+) - C28-10 (VV1-) R - G VVT sensor (for intake camshaft of bank 1) signal Idling Pulse generation(see waveform 6)
    C28-12 (VV2+) - C28-11 (VV2-) G - GR VVT sensor (for intake camshaft of bank 2) signal Idling Pulse generation(see waveform 6)
    C28-13 (EV1+) - C28-14 (EV1-) W-R - R-B VVT sensor (for exhaust camshaft of bank 1) signal Idling Pulse generation(see waveform 7)
    C28-18 (EV2+) - C28-17 (EV2-) L - P VVT sensor (for exhaust camshaft of bank 2) signal Idling Pulse generation(see waveform 7)
    C28-6 (NE+) - C28-5 (NE-) B - W Crankshaft position sensor signal Idling Pulse generation(see waveform 6, 7)
    C29-29 (NEO) - C30-12 (E1) P - BR Crankshaft position sensor signal sent to certification ECU (Power management control ECU) Idling with warm engine Pulse generation (see waveform 8)
    C31-20 (M+) - C31-10 (ME01) P - W-B Throttle actuator operation signal (positive terminal) Idling with warm engine Pulse generation(see waveform 9)
    C30-29 (M-) - C31-10 (ME01) L - W-B Throttle actuator operation signal (negative terminal) Idling with warm engine Pulse generation(see waveform 10)
    C30-24 (IGT1) - C30-12 (E1) R-Y - BR No. 1 ignition coil assembly (ignition signal) Idling Pulse generation(see waveform 11)
    C30-25 (IGT2) - C30-12 (E1) R-L - BR No. 2 ignition coil assembly (ignition signal) Idling Pulse generation(see waveform 11)
    C30-26 (IGT3) - C30-12 (E1) G-B - BR No. 3 ignition coil assembly (ignition signal) Idling Pulse generation(see waveform 11)
    C30-27 (IGT4) - C30-12 (E1) G-W - BR No. 4 ignition coil assembly (ignition signal) Idling Pulse generation(see waveform 11)
    C30-28 (IGT5) - C30-12 (E1) GR - BR No. 5 ignition coil assembly (ignition signal) Idling Pulse generation(see waveform 11)
    C29-25 (IGT6) - C30-12 (E1) L - BR No. 6 ignition coil assembly (ignition signal) Idling Pulse generation(see waveform 11)
    C30-6 (IGF1) - C30-12 (E1) G-R - BR Ignition coil assembly (ignition confirmation signal) Engine switch on (IG) 4.5 to 5.0 V
    Idling Pulse generation(see waveform 11)
    C30-17 (THW) - C29-8 (ETHW) R-L - W-R Engine coolant temperature sensor signal Idling, engine coolant temperature 80°C (176°F) 0.2 to 1.0 V
    C29-15 (THA) - C29-7 (ETHA) Y-B - W-R Intake air temperature sensor signal Idling, intake air temperature 20°C (68°F) 0.5 to 3.4 V
    C29-14 (VG) - C29-13 (E2G) W-R - B-W Mass air flow meter sub-assembly signal Idling, shift lever in P or N, A/C switch off 0.5 to 3.0 V
    C30-18 (PRG) - C30-12 (E1) P - BR Purge VSV operation signal Engine switch on (IG) 11 to 14 V
    Idling with warm engine Pulse generation(see waveform 12)
    C30-1 (A1A+) - C30-12 (E1) P - BR Air fuel ratio sensor (bank 1 sensor 1) signal Engine switch on (IG) 3.3 V*
    C30-2 (A1A-) - C30-12 (E1) L - BR Air fuel ratio sensor (bank 1 sensor 1) signal Engine switch on (IG) 2.9 V*
    C30-7 (A2A+) - C30-12 (E1) Y - BR Air fuel ratio sensor (bank 2 sensor 1) signal Engine switch on (IG) 3.3 V*
    C30-8 (A2A-) - C30-12 (E1) L - BR Air fuel ratio sensor (bank 2 sensor 1) signal Engine switch on (IG) 2.9 V*
    C31-17 (HA1A) - C31-18 (E05) R-L - W-B Air fuel ratio sensor (bank 1 sensor 1) heater operation signal Idling Pulse generation (see waveform 13)
    Engine switch on (IG) 11 to 14 V
    C31-19 (HA2A) - C31-18 (E05) B-W - W-B Air fuel ratio sensor (bank 2 sensor 1) heater operation signal Idling Pulse generation (see waveform 13)
    Engine switch on (IG) 11 to 14 V
    C28-2 (OX1B) - C28-1 (EX1B) B - L-W Heated oxygen sensor (bank 1 sensor 2) signal Engine speed maintained at 2500 rpm for 2 minutes after warming up engine Pulse generation(see waveform 14)
    C28-4 (OX2B) - C28-3 (EX2B) B - GR Heated oxygen sensor (bank 2 sensor 2) signal Engine speed maintained at 2500 rpm for 2 minutes after warming up engine Pulse generation(see waveform 14)
    C31-12 (HT1B) - C31-16 (E04) L-R - W-B Heated oxygen sensor (bank 1 sensor 2) heater operation signal Idling Below 3.0 V
    Engine switch on (IG) 11 to 14 V
    C31-13 (HT2B) - C31-16 (E04) L - W-B Heated oxygen sensor (bank 2 sensor 2) heater operation signal Idling Below 3.0 V
    Engine switch on (IG) 11 to 14 V
    C29-2 (NSW) - C30-12 (E1) B - W Knock control sensor (bank 1) signal Engine speed maintained at 4000 rpm after warming up engine Pulse generation(see waveform 15)
    C29-5 (KNK2) - C29-6 (EKN2) G - R Knock control sensor (bank 2) signal Engine speed maintained at 4000 rpm after warming up engine Pulse generation(see waveform 15)
    C28-35 (P) - C30-12 (E1) L - BR P shift position switch signal Engine switch on (IG) and shift lever in P 11 to 14 V
    Engine switch on (IG) and shift lever not in P Below 1 V
    C28-28 (R) - C30-12 (E1) R - BR R shift position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    Engine switch on (IG) and shift lever not in R Below 1 V
    C28-29 (N) - C30-12 (E1) G - BR N shift position switch signal Engine switch on (IG) and shift lever in N 11 to 14 V
    Engine switch on (IG) and shift lever not in N Below 1 V
    C28-27 (D) - C30-12 (E1) B - BR D shift position switch signal Engine switch on (IG) and shift lever in D or S 11 to 14 V
    Engine switch on (IG) and shift lever not in D or S Below 1 V
    G107-24 (S) - C30-12 (E1) V - BR S shift position switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever not in S Below 1 V
    G107-22 (SFTD) - C30-12 (E1) LG - BR Down shift switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in "-" (down shift) selected Below 1 V
    G107-16 (SFTU) - C30-12 (E1) GR - BR Up shift switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in "+" (up shift) selected Below 1 V
    G107-8 (FC) - C30-12 (E1) G - BR Fuel pump control Idling Below 1.5 V
    G106-3 (FPC) - C30-12 (E1) G - BR Fuel pump control Engine stopped, engine switch on (IG) Below 1.5 V
    G107-26 (DI) - C30-12 (E1) GR - BR Fuel pump control Engine stopped, engine switch on (IG) -0.1 to 0.4 V
    C29-16 (PSP) - C30-12 (E1) V - BR Power steering oil pressure sensor Engine stopped, engine switch on (IG) 0.5 to 4.5 V
    G107-32 (CANH) - C30-12 (E1) R - BR CAN communication line Engine switch on (IG) Pulse generation(see waveform 16)
    G107-31 (CANL) - C30-12 (E1) W - BR CAN communication line Engine switch on (IG) Pulse generation(see waveform 17)
    G107-34 (CANP) - C30-12 (E1) BR - BR CAN communication line Engine switch on (IG) Pulse generation(see waveform 16)
    G107-33 (CANN) - C30-12 (E1) GR - BR CAN communication line Engine switch on (IG) Pulse generation(see waveform 17)
    C30-30 (GE01) - C30-12 (E1) - - BR Shielded earth (ground) circuit of throttle actuator Always Below 1 Ω
    G106-12 (EC) - Body ground W-B - - Ground Always Below 1 Ω
    C30-12 (E1) - Body ground BR - - Ground Always Below 1 Ω
    C31-14 (E01) - Body ground W-B - - Ground Always Below 1 Ω
    C31-15 (E02) - Body ground W-B - - Earth (ground) circuit of ECM Always Below 1 Ω
    C31-16 (E04) - Body ground Ground Ground Always Below 1 Ω
    C31-18 (E05) - Body ground W-B - - Ground Always Below 1 Ω

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


    1. A01A3JFE01
      *a 5 V/DIV.
      *b 10 ms./DIV.

      WAVEFORM 1

      Engine Speed Signal
      ECM Terminal Name Between TACH and E1
      Tester Range 5 V/DIV., 10 ms./DIV.
      Condition Idling

      Tech Tips

      The wavelength becomes shorter as the engine speed increases.

    2. A01A412E01
      *a 5 V/DIV.
      *b 20 ms./DIV.

      WAVEFORM 2

      Vehicle Speed Signal
      ECM Terminal Name Between SPD and E1
      Tester Range 5 V/DIV., 20 ms./DIV.
      Condition Driving at 20 km/h (12 mph)

      Tech Tips

      The wavelength becomes shorter as the vehicle speed increases.

    3. A01A2E2E01
      *1 20 V/DIV.
      *2 20 ms./DIV.

      WAVEFORM 3

      No. 1 (to No. 6) Fuel Injector Assembly Signal
      ECM Terminal Name Between #10 (to #60) and E01
      Tester Range 20 V/DIV., 20 ms./DIV.
      Condition Idling

      Tech Tips

      The wavelength becomes shorter as the engine speed increases.

    4. A01A391E01
      *a 5 V/DIV.
      *b 1 ms./DIV.

      WAVEFORM 4

      Camshaft Timing Oil Control Valve Assembly (for Intake Camshaft) Operation Signal
      ECM Terminal Name Between OC1+ and OC1-, or OC2+ and OC2-
      Tester Range 5 V/DIV., 1 ms./DIV.
      Condition Idling
    5. A01A391E01
      *a 5 V/DIV.
      *b 1 ms./DIV.

      WAVEFORM 5

      Camshaft Timing Oil Control Valve Assembly (for Exhaust Camshaft) Operation Signal
      ECM Terminal Name Between OE1+ and OE1-, or OE2+ and OE2-
      Tester Range 5 V/DIV., 1 ms./DIV.
      Condition Idling
    6. A01A3MIE01
      *a 5 V/DIV.
      *b 20 ms./DIV.

      WAVEFORM 6

      Crankshaft Position Sensor Signal and VVT Sensor (for Intake Camshaft) Signal
      ECM Terminal Name

      Between NE+ and NE-

      Between VV1+ and VV1-

      Between VV2+ and VV1-
      Tester Range 5 V/DIV., 20 ms./DIV.
      Condition Idling

      Tech Tips

      The wavelength becomes shorter as the engine speed increases.

    7. A01A2NNE01
      *a 5 V/DIV.
      *b 20 ms./DIV.

      WAVEFORM 7

      Crankshaft Position Sensor Signal and VVT Sensor (for Exhaust Camshaft) Signal
      ECM Terminal Name

      Between NE+ and NE-

      Between EV1+ and EV1-

      Between EV2+ and EV2-
      Tester Range 5 V/DIV., 20 ms./DIV.
      Condition Idling

      Tech Tips

      The wavelength becomes shorter as the engine speed increases.

    8. A01A5T0E05
      *a 5 V/DIV.
      *b 2 ms./DIV.

      WAVEFORM 8

      Crankshaft Position Sensor Signal
      ECM Terminal Name Between NEO and E1
      Tester Range 5 V/DIV., 2 ms./DIV.
      Condition Idling with warm engine

      Tech Tips

      The wavelength becomes shorter as the engine speed increases.

    9. A01A6DGE30
      *a 5 V/DIV.
      *b 1 ms./DIV.

      WAVEFORM 9

      Throttle Actuator Positive Terminal Signal
      ECM Terminal Name Between M+ and ME01
      Tester Range 5 V/DIV., 1 ms./DIV.
      Condition Idling with warm engine

      Tech Tips

      The duty ratio varies depending on the throttle actuator operation.

    10. A01A2BVE01
      *a 5 V/DIV.
      *b 1 ms./DIV.

      WAVEFORM 10

      Throttle Actuator Negative Terminal Signal
      ECM Terminal Name Between M- and ME01
      Tester Range 5 V/DIV., 1 ms./DIV.
      Condition Idling with warm engine

      Tech Tips

      The duty ratio varies depending on the throttle actuator operation.

    11. A01A5CME11
      *a 2 V/DIV.
      *b 20 ms./DIV.

      WAVEFORM 11

      Ignition Coil Assembly Signal (IGT and IGF Signal)
      ECM Terminal Name

      Between IGT1 (to 6) and E1

      Between IGF1 and E1
      Tester Range 2 V/DIV., 20 ms./DIV.
      Condition Idling

      Tech Tips

      The wavelength becomes shorter as the engine speed increases.

    12. A01A864E11
      *1 10 V/DIV.
      *2 20 ms./DIV.

      WAVEFORM 12

      Purge VSV Operation Signal
      ECM Terminal Name Between PRG and E1
      Tester Range 10 V/DIV., 20 ms./DIV.
      Condition Idling with warm engine

      Tech Tips

      If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.

    13. A01A5UYE07
      *a 5 V/DIV.
      *b 10 ms./DIV.

      WAVEFORM 13

      Air Fuel Ratio Sensor (Sensor 1) Heater Operation Signal
      ECM Terminal Name Between HA1A and E05, or HA2A and E05
      Tester Range 5 V/DIV., 10 ms./DIV.
      Condition Idling

      Tech Tips

      The wavelength varies in accordance with the engine operating condition.

    14. A01A2T8E01
      *1 0.2 V/DIV.
      *2 200 ms./DIV.

      WAVEFORM 14

      Heated Oxygen Sensor (Sensor 2) Signal
      ECM Terminal Name Between OX1B and EX1B, or OX2B and EX2B
      Tester Range 0.2 V/DIV., 200 ms./DIV.
      Condition Engine speed maintained at 2500 rpm for 2 minutes after warming up engine

      Tech Tips

      In the Data List, item O2S B1S2 and O2S B2S2 shows the ECM values from the heated oxygen sensor.

    15. B001RGOE99
      *a 1 V/DIV.
      *b 1 ms./DIV.

      WAVEFORM 15

      Knock Control Sensor Signal
      ECM Terminal Name Between KNK1 and EKNK, or KNK2 and EKN2
      Tester Range 1 V/DIV., 1 ms./DIV.
      Condition Engine speed maintained at 4000 rpm after warming up engine

      Tech Tips


      • The wavelength becomes shorter as the engine speed increases.

      • The waveforms and amplitudes displayed differ slightly depending on the vehicle condition.

    16. A01A772E01
      *a 1 V/DIV.
      *b 10 μs./DIV.

      WAVEFORM 16

      CAN Communication Signal (Reference)
      ECM Terminal Name Between CANH and E1, or CANP and E1
      Tester Range 1 V/DIV., 10 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform varies depending on the CAN communication signal.

    17. A01A565E01
      *a 1 V/DIV.
      *b 10 μs./DIV.

      WAVEFORM 17

      CAN Communication Signal (Reference)
      ECM Terminal Name Between CANL and E1, or CANN and E1
      Tester Range 1 V/DIV., 10 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform varies depending on the CAN communication signal.