SFI SYSTEM TERMINALS OF ECM


  1. CHECK ECM

    B001YTQE02

    1. Measure the voltage according to the value(s) in the table below.

      Tech Tips

      The standard normal voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition

      A52*1-1 (BATT) - C46*1-81 (E1)

      A38*2-1 (BATT) - C45*2-81 (E1)

      L - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V

      C46*1-41 (+BM) - C46*1-81 (E1)

      C45*2-41 (+BM) - C45*2-81 (E1)

      P - BR Power source of throttle actuator Always 11 to 14 V

      A52*1-28 (IGSW) - C46*1-81 (E1)

      A38*2-28 (IGSW) - C45*2-81 (E1)

      B - BR Engine switch Engine switch on (IG) 11 to 14 V

      A52*1-3 (+B) - C46*1-81 (E1)

      A38*2-3 (+B) - C45*2-81 (E1)

      B - BR Power source of ECM Engine switch on (IG) 11 to 14 V

      A52*1-2 (+B2) - C46*1-81 (E1)

      A38*2-2 (+B2) - C45*2-81 (E1)

      B - BR Power source of ECM Engine switch on (IG) 11 to 14 V

      C46*1-58 (OC1+) - C46*1-57 (OC1-)

      C45*2-58 (OC1+) - C45*2-57 (OC1-)

      B - L Camshaft timing oil control valve (OCV) (for Intake Side of Bank 1) Idling

      Pulse generation

      (see waveform 1)

      C46*1-52 (OC2+) - C46*1-51 (OC2-)

      C45*2-52 (OC2+) - C45*2-51 (OC2-)

      L - R Camshaft timing oil control valve (OCV) (for Intake Side of Bank 2) Idling

      Pulse generation

      (see waveform 1)

      C46*1-56 (OE1+) - C46*1-55 (OE1-)

      C45*2-56 (OE1+) - C45*2-55 (OE1-)

      W - B Camshaft timing oil control valve (OCV) (for Exhaust Side of Bank 1) Idling

      Pulse generation

      (see waveform 1)

      C46*1-50 (OE2+) - C46*1-49 (OE2-)

      C45*2-50 (OE2+) - C45*2-49 (OE2-)

      R - B Camshaft timing oil control valve (OCV) (for Exhaust Side of Bank 2) Idling

      Pulse generation

      (see waveform 1)

      A52*1-34 (MREL) - C46*1-81 (E1)

      A38*2-34 (MREL) - C45*2-81 (E1)

      V - BR EFI MAIN NO. 1 relay Engine switch on (IG) 11 to 14 V

      C46*1-74 (VG) - C46*1-75 (E2G)

      C45*2-74 (VG) - C45*2-75 (E2G)

      Y - W Mass air flow meter Idling, Shift lever position P or N, A/C switch OFF 0.5 to 3.0 V

      C46*1-73 (THA) - C46*1-98 (E2)

      C45*2-73 (THA) - C45*2-98 (E2)

      B - BR Intake air temperature sensor Idling, Intake air temperature 20°C (68°F) 0.5 to 3.4 V

      C46*1-76 (THW) - C46*1-98 (E2)

      C45*2-76 (THW) - C45*2-98 (E2)

      B - BR Engine coolant temperature sensor Idling, Engine coolant temperature 80°C (176°F) 0.2 to 1.0 V

      C46*1-80 (VCTA) - C46*1-79 (ETA)

      C45*2-80 (VCTA) - C45*2-79 (ETA)

      Y - L Power source of throttle position sensor (specific voltage) Engine switch on (IG) 4.5 to 5.5 V

      C46*1-78 (VTA1) - C46*1-79 (ETA)

      C45*2-78 (VTA1) - C45*2-79 (ETA)

      Y - L Throttle position sensor (for engine control)

      Engine switch on (IG),

      Throttle valve fully closed

      0.5 to 1.2 V

      Engine switch on (IG),

      Throttle valve fully open

      3.2 to 4.8 V

      C46*1-77 (VTA2) - C46*1-79 (ETA)

      C45*2-77 (VTA2) - C45*2-79 (ETA)

      B - L Throttle position sensor (for sensor malfunction detection)

      Engine switch on (IG),

      Throttle valve fully closed

      2.1 to 3.1 V

      Engine switch on (IG),

      Throttle valve fully open

      4.5 to 5.5 V

      A52*1-55 (VPA) - A52*1-58 (EPA)

      A38*2-55 (VPA) - A38*2-58 (EPA)

      R - W Accelerator pedal position sensor (for engine control)

      Engine switch on (IG),

      Accelerator pedal released

      0.5 to 1.1 V

      Engine switch on (IG),

      Accelerator pedal fully depressed

      2.6 to 4.5 V

      A52*1-56 (VPA2) - A52*1-60 (EPA2)

      A38*2-56 (VPA2) - A38*2-60 (EPA2)

      GR - BE Accelerator pedal position sensor (for sensor malfunctioning detection)

      Engine switch on (IG),

      Accelerator pedal released

      1.2 to 2.0 V

      Engine switch on (IG),

      Accelerator pedal fully depressed

      3.4 to 4.75 V

      A52*1-57 (VCPA) - A52*1-58 (EPA)

      A38*2-57 (VCPA) - A38*2-58 (EPA)

      L - W Power source of accelerator pedal position sensor (for VPA) Engine switch on (IG) 4.5 to 5.5 V

      A52*1-59 (VCP2) - A52*1-60 (EPA2)

      A38*2-59 (VCP2) - A38*2-60 (EPA2)

      V - BE Power source of accelerator pedal position sensor (for VPA2) Engine switch on (IG) 4.5 to 5.5 V

      C46*1-22 (HA1A) - C46*1-23 (E04)

      C45*2-22 (HA1A) - C45*2-23 (E04)

      L - W-B A/F sensor heater Idling Below 3.0 V
      Engine switch on (IG) 11 to 14 V

      C46*1-20 (HA2A) - C46*1-21 (E05)

      C45*2-20 (HA2A) - C45*2-21 (E05)

      G - W-B A/F sensor heater Idling Below 3.0 V
      Engine switch on (IG) 11 to 14 V

      C46*1-126 (A1A+) - C46*1-81 (E1)

      C45*2-126 (A1A+) - C45*2-81 (E1)

      G -BR A/F sensor Engine switch on (IG) 3.3 V*3

      C46*1-125 (A1A-) - C46*1-81 (E1)

      C45*2-125 (A1A-) - C45*2-81 (E1)

      R - BR A/F sensor Engine switch on (IG) 2.9 V*3

      C46*1-103 (A2A+) - C46*1-81 (E1)

      C45*2-103 (A2A+) - C45*2-81 (E1)

      P - BR A/F sensor Engine switch on (IG) 3.3 V*3

      C46*1-102 (A2A-) - C46*1-81 (E1)

      C45*2-102 (A2A-) - C45*2-81 (E1)

      L - BR A/F sensor Engine switch on (IG) 2.9 V*3

      C46*1-45 (HT1B) - C46*1-46 (E03)

      C45*2-45 (HT1B) - C45*2-46 (E03)

      G - W-B Heated oxygen sensor heater Idling Below 3.0 V
      Engine switch on (IG) 11 to 14 V

      C46*1-44 (HT2B) - C46*1-46 (E03)

      C45*2-44 (HT2B) - C45*2-46 (E03)

      B - W-B Heated oxygen sensor heater Idling Below 3.0 V
      Engine switch on (IG) 11 to 14 V

      C46*1-114 (OX1B) - C46*1-115 (EX1B)

      C45*2-114 (OX1B) - C45*2-115 (EX1B)

      G - L Heated oxygen sensor Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor

      Pulse generation

      (see waveform 2)

      C46*1-112 (OX2B) - C46*1-113 (EX2B)

      C45*2-112 (OX2B) - C45*2-113 (EX2B)

      R - W Heated oxygen sensor Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor

      Pulse generation

      (see waveform 2)

      C46*1-86 (#10) - C46*1-43 (E01)

      C45*2-86 (#10) - C45*2-43 (E01)

      R - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-109 (#20) - C46*1-43 (E01)

      C45*2-109 (#20) - C45*2-43 (E01)

      L - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-85 (#30) - C46*1-43 (E01)

      C45*2-85 (#30) - C45*2-43 (E01)

      R - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-108 (#40) - C46*1-43 (E01)

      C45*2-108 (#40) - C45*2-43 (E01)

      Y - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-84 (#50) - C46*1-43 (E01)

      C45*2-84 (#50) - C45*2-43 (E01)

      G - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-107 (#60) - C46*1-43 (E01)

      C45*2-107 (#60) - C45*2-43 (E01)

      R - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-83 (#70) - C46*1-43 (E01)

      C45*2-83 (#70) - C45*2-43 (E01)

      W - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-106 (#80) - C46*1-43 (E01)

      C45*2-106 (#80) - C45*2-43 (E01)

      R - W-B Injector Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 3)

      C46*1-94 (KNK1) - C46*1-93 (EKNK)

      C45*2-94 (KNK1) - C45*2-93 (EKNK)

      R - G Knock sensor Engine speed maintained at 4000 rpm after warming up engine

      Pulse generation

      (see waveform 4)

      C46*1-117 (KNK2) - C46*1-116 (EKN2)

      C45*2-117 (KNK2) - C45*2-116 (EKN2)

      W - B Knock sensor Engine speed maintained at 4000 rpm after warming up engine

      Pulse generation

      (see waveform 4)

      C46*1-96 (KNK3) - C46*1-95 (EKN3)

      C45*2-96 (KNK3) - C45*2-95 (EKN3)

      W - B Knock sensor Engine speed maintained at 4000 rpm after warming up engine

      Pulse generation

      (see waveform 4)

      C46*1-119 (KNK4) - C46*1-118 (EKN4)

      C45*2-119 (KNK4) - C45*2-118 (EKN4)

      R - G Knock sensor Engine speed maintained at 4000 rpm after warming up engine

      Pulse generation

      (see waveform 4)

      C46*1-92 (VV1+) - C46*1-91 (VV1-)

      C45*2-92 (VV1+) - C45*2-91 (VV1-)

      R - Y Variable valve timing (VVT) sensor (for Intake Side of Bank 1) Idling

      Pulse generation

      (see waveform 5)

      C46*1-87 (VV2+) - C46*1-88 (VV2-)

      C45*2-87 (VV2+) - C45*2-88 (VV2-)

      R - Y Variable valve timing (VVT) sensor (for Intake Side for Bank 2) Idling

      Pulse generation

      (see waveform 5)

      C46*1-69 (EV1+) - C46*1-68 (EV1-)

      C45*2-69 (EV1+) - C45*2-68 (EV1-)

      L - Y Variable valve timing (VVT) sensor (for Exhaust Side of Bank 1) Idling

      Pulse generation

      (see waveform 16)

      C46*1-64 (EV2+) - C46*1-65 (EV2-)

      C45*2-64 (EV2+) - C45*2-65 (EV2-)

      L - Y Variable valve timing (VVT) sensor (for Exhaust Side of Bank 2) Idling

      Pulse generation

      (see waveform 16)

      C46*1-110 (NE+) - C46*1-111 (NE-)

      C45*2-110 (NE+) - C45*2-111 (NE-)

      W - Y Crankshaft position sensor Idling

      Pulse generation

      (see waveform 5)

      C46*1-40 (IGT1) - C46*1-81 (E1)

      C45*2-40 (IGT1) - C45*2-81 (E1)

      Y - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-33 (IGT2) - C46*1-81 (E1)

      C45*2-33 (IGT2) - C45*2-81 (E1)

      L - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-37 (IGT3) - C46*1-81 (E1)

      C45*2-37 (IGT3) - C45*2-81 (E1)

      B - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-34 (IGT4) - C46*1-81 (E1)

      C45*2-34 (IGT4) - C45*2-81 (E1)

      L - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-35 (IGT5) - C46*1-81 (E1)

      C45*2-35 (IGT5) - C45*2-81 (E1)

      G - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-36 (IGT6) - C46*1-81 (E1)

      C45*2-36 (IGT6) - C45*2-81 (E1)

      P - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-38 (IGT7) - C46*1-81 (E1)

      C45*2-38 (IGT7) - C45*2-81 (E1)

      W - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-39 (IGT8) - C46*1-81 (E1)

      C45*2-39 (IGT8) - C45*2-81 (E1)

      G - BR Ignition coil (ignition signal) Idling

      Pulse generation

      (see waveform 6)

      C46*1-105 (IGF1) - C46*1-81 (E1)

      C45*2-105 (IGF1) - C45*2-81 (E1)

      G - BR Ignition coil (ignition confirmation signal) Engine switch on (IG) 4.5 to 5.5 V
      Idling

      Pulse generation

      (see waveform 6)

      C46*1-104 (IGF2) - C46*1-81 (E1)

      C45*2-104 (IGF2) - C45*2-81 (E1)

      R - BR Ignition coil (ignition confirmation signal) Engine switch on (IG) 4.5 to 5.5 V
      Idling

      Pulse generation

      (see waveform 6)

      C46*1-63 (PRG) - C46*1-81 (E1)

      C45*2-63 (PRG) - C45*2-81 (E1)

      B - BR Purge VSV Engine switch on (IG) 11 to 14 V
      Idling

      Pulse generation

      (see waveform 7)

      A52*1-13 (SPD) - C46*1-81 (E1)

      A38*2-13 (SPD) - C45*2-81 (E1)

      L - BR Speed signal from combination meter Driving at 20 km/h (12 mph)

      Pulse generation

      (see waveform 8)

      A52*1-46 (STA) - C46*1-81 (E1)

      A38*2-46 (STA) - C45*2-81 (E1)

      R - BR Starter signal Cranking 5.5 V or more

      C46*1-120 (NSW) - C46*1-81 (E1)

      C45*2-120 (NSW) - C45*2-81 (E1)

      L - BR Park / neutral position switch Engine switch on (IG), Shift lever position other than P and N 11 to 14 V
      Engine switch on (IG), Shift lever position in P or N Below 3.0 V

      A52*1-36 (STP) - C46*1-81 (E1)

      A38*2-36 (STP) - C45*2-81 (E1)

      R - BR Stop light switch Brake pedal depressed 7.5 to 14 V
      Brake pedal released Below 1.5 V

      A52*1-35 (ST1-) - C46*1-81 (E1)

      A38*2-35 (ST1-) - C45*2-81 (E1)

      P - BR

      Stop light switch

      (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

      C46*1-19 (M+) - C46*1-82 (ME01)

      C45*2-19 (M+) - C45*2-82 (ME01)

      R - W-B Throttle actuator Idling with warm engine

      Pulse generation

      (see waveform 9)

      C46*1-18 (M-) - C46*1-82 (ME01)

      C45*2-18 (M-) - C45*2-82 (ME01)

      G - W-B Throttle actuator Idling with warm engine

      Pulse generation

      (see waveform 10)

      A52*1-52 (FPC) - C46*1-81 (E1)

      A38*2-52 (FPC) - C45*2-81 (E1)

      W - BR Fuel pump control Engine switch on (IG) Below 1.5 V

      A52*1-16 (TC) - C46*1-81 (E1)

      A38*2-16 (TC) - C45*2-81 (E1)

      V - BR Terminal TC of DLC3 Engine switch on (IG) 11 to 14 V

      A52*1-15 (TACH) - C46*1-81 (E1)

      A38*2-15 (TACH) - C45*2-81 (E1)

      W - BR Engine speed Idling

      Pulse generation

      (see waveform 11)

      C46*1-67 (VCV1) - C46*1-98 (E2)

      C45*2-67 (VCV1) - C45*2-98 (E2)

      L - BR Power source for sensor (specific voltage) Engine switch on (IG) 4.5 to 5.5 V

      C46*1-66 (VCV2) - C46*1-98 (E2)

      C45*2-66 (VCV2) - C45*2-98 (E2)

      L - BR Power source for sensor (specific voltage) Engine switch on (IG) 4.5 to 5.5 V

      C46*1-32 (ALT) - C46*1-81 (E1)

      C45*2-32 (ALT) - C45*2-81 (E1)

      R - BR Generator Engine switch on (IG) 11 to 14 V

      A52*1-10 (CANH) - C46*1-81 (E1)

      A38*2-10 (CANH) - C45*2-81 (E1)

      V - BR CAN communication line Engine switch on (IG)

      Pulse generation

      (see waveform 12)

      A52*1-11 (CANL) - C46*1-81 (E1)

      A38*2-11 (CANL) - C45*2-81 (E1)

      W - BR CAN communication line Engine switch on (IG)

      Pulse generation

      (see waveform 13)

      C46*1-62 (ACIS) - C46*1-81 (E1)

      C45*2-62 (ACIS) - C45*2-81 (E1)

      L - BR VSV for ACIS (Acoustic Control Induction System) operation signal Engine switch on (IG) 11 to 14 V

      C46*1-28 (AIRV) - C46*1-81 (E1)

      C45*2-28 (AIRV) - C45*2-81 (E1)

      BR - BR Air switching valve signal for secondary air injection system Engine switch on (IG) 11 to 14 V

      C46*1-54 (AIRP) - C46*1-81 (E1)

      C45*2-54 (AIRP) - C45*2-81 (E1)

      P - BR Air pump control signal for secondary air injection system Engine switch on (IG) 11 to 14 V

      C46*1-30 (AIDI) - C46*1-81 (E1)

      C45*2-30 (AIDI) - C45*2-81 (E1)

      G - BR Diagnostic information signal for secondary air injection system Air injection system operates

      Pulse generation

      (see waveform 15)

      A52*1-54 (AIP) - C46*1-98 (E2)

      A38*2-54 (AIP) - C45*2-98 (E2)

      P - BR Secondary air injection system pressure signal Engine switch on (IG) 3.0 to 3.6 V

      A52*1-53 (AIP2) - C46*1-98 (E2)

      A38*2-53 (AIP2) - C45*2-98 (E2)

      L - BR Secondary air injection system pressure signal Engine switch on (IG) 3.0 to 3.6 V

      C46*1-60 (HAI1) - C46*1-81 (E1)

      C45*2-60 (HAI1) - C45*2-81 (E1)

      G - BR Air pump heater for secondary air injection system AI heater operating Below 1.5 V

      C46*1-61 (AIR1) - C46*1-81 (E1)

      C45*2-61 (AIR1) - C45*2-81 (E1)

      R - BR Air pump for secondary air injection system AI operating 11 to 14 V

      C46*1-90 (G2) - C46*1- 89 (G2-)

      C45*2-90 (G2) - C45*2- 89 (G2-)

      G - Y Camshaft position sensor Idling

      Pulse generation

      (see waveform 14)

      C46*1-72 (PSP) - C46*1-98 (E2)

      C45*2-72 (PSP) - C45*2-98 (E2)

      G - BR Power steering oil pressure switch Engine switch on (IG) 0.5 to 4.5 V

      C46*1-97 (PIM) - C46*1-98 (E2)

      C45*2-97 (PIM) - C45*2-98 (E2)

      L - BR Manifold absolute pressure sensor Idling 1.2 to 2.0 V

      A52*1-17 (ACT) - C46*1-81 (E1)

      A38*2-17 (ACT) - C45*2-81 (E1)

      G - BR A/C signal A/C on 11 to 14 V
      A/C off Below 1.5 V

      A52*1-19 (AC1) - C46*1-81 (E1)

      A38*2-19 (AC1) - C45*2-81 (E1)

      L - BR A/C signal A/C on Below 1.5 V
      A/C off 11 to 14 V

      A52*1-7 (NEO) - C46*1-81 (E1)

      A38*2-7 (NEO) - C45*2-81 (E1)

      L - BR Engine speed signal Idle after engine warmed up

      Pulse generation

      (see waveform 17)

      Tech Tips


      • *1: for RHD

      • *2: for LHD

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

    2. B001YOHE04
      *a 5 V/DIV.
      *b 1 msec./DIV.

      WAVEFORM 1:

      Camshaft timing oil control valve (OCV)
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-58 (OC1+) - C46*1-57 (OC1-)

      C45*2-58 (OC1+) - C45*2-57 (OC1-)

      5 V/DIV., 1 msec./DIV. Idling

      C46*1-52 (OC2+) - C46*1-51 (OC2-)

      C45*2-52 (OC2+) - C45*2-51 (OC2-)

      5 V/DIV., 1 msec./DIV. Idling

      C46*1-56 (OE1+) - C46*1-55 (OE1-)

      C45*2-56 (OE1+) - C45*2-55 (OE1-)

      5 V/DIV., 1 msec./DIV. Idling

      C46*1-50 (OE2+) - C46*1-49 (OE2-)

      C45*2-50 (OE2+) - C45*2-49 (OE2-)

      5 V/DIV., 1 msec./DIV. Idling

      *1: for RHD

      *2: for LHD

    3. B00205AE03
      *1 0.2 V/DIV.
      *2 200 msec./DIV.

      WAVEFORM 2:

      Heated oxygen sensor
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-114 (OX1B) - C46*1-115 (EX1B)

      C45*2-114 (OX1B) - C45*2-115 (EX1B)

      0.2 V/DIV., 200 msec./DIV. Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor

      C46*1-112 (OX2B) - C46*1-113 (EX2B)

      C45*2-112 (OX2B) - C45*2-113 (EX2B)

      0.2 V/DIV., 200 msec./DIV. Engine speed maintained at 2500 rpm for 2 minutes after warming up sensor

      *1: for RHD

      *2: for LHD

      Tech Tips

      In DATA LIST, item O2S B1S2 or O2S B2S2 shows the ECM input values from the heated oxygen sensor.

    4. B002016E01
      *1 20 V/DIV.
      *2 20 msec./DIV.

      WAVEFORM 3:

      Injector No. 1 (to No. 8) injection signal
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-86 (#10) - C46*1-43 (E01)

      C45*2-86 (#10) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-109 (#20) - C46*1-43 (E01)

      C45*2-109 (#20) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-85 (#30) - C46*1-43 (E01)

      C45*2-85 (#30) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-108 (#40) - C46*1-43 (E01)

      C45*2-108 (#40) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-84 (#50) - C46*1-43 (E01)

      C45*2-84 (#50) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-107 (#60) - C46*1-43 (E01)

      C45*2-107 (#60) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-83 (#70) - C46*1-43 (E01)

      C45*2-83 (#70) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      C46*1-106 (#80) - C46*1-43 (E01)

      C45*2-106 (#80) - C45*2-43 (E01)

      20 V/DIV., 20 msec./DIV. Idling

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as the engine rpm increases.

    5. B001ZY3E02
      *a 1 V/DIV.
      *b 1 msec./DIV.

      WAVEFORM 4:

      Knock sensor
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-94 (KNK1) - C46*1-93 (EKNK)

      C45*2-94 (KNK1) - C45*2-93 (EKNK)

      1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine

      C46*1-117 (KNK2) - C46*1-116 (EKN2)

      C45*2-117 (KNK2) - C45*2-116 (EKN2)

      1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine

      C46*1-96 (KNK3) - C46*1-95 (EKN3)

      C45*2-96 (KNK3) - C45*2-95 (EKN3)

      1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine

      C46*1-119 (KNK4) - C46*1-118 (EKN4)

      C45*2-119 (KNK4) - C45*2-118 (EKN4)

      1 V/DIV., 1 msec./DIV. Engine speed maintained at 4000 rpm after warming up engine

      *1: for RHD

      *2: for LHD

      Tech Tips


      • The wavelength becomes shorter as the engine rpm increases.

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

    6. B001WU5E01

      WAVEFORM 5:

      Crankshaft position sensor and VVT sensor for intake side
      Terminal No. (Symbols) Tool Setting Condition

      (a) C46*1-110 (NE+) - C46*1-111 (NE-)

      (a) C45*2-110 (NE+) - C45*2-111 (NE-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      (b) C46*1-92 (VV1+) - C46*1-91 (VV1-)

      (b) C45*2-92 (VV1+) - C45*2-91 (VV1-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      (c) C46*1-87 (VV2+) - C46*1-88 (VV2-)

      (c) C45*2-87 (VV2+) - C45*2-88 (VV2-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as engine rpm increases.

    7. B001VNXE01

      WAVEFORM 6:

      Igniter IGT signal (from ECM to igniter) and Igniter IGF signal (from igniter to ECM)
      Terminal No. (Symbols) Tool Setting Condition

      (a) C46*1-40 (IGT1) - C46*1-81 (E1)

      (a) C45*2-40 (IGT1) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-33 (IGT2) - C46*1-81 (E1)

      (a) C45*2-33 (IGT2) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-37 (IGT3) - C46*1-81 (E1)

      (a) C45*2-37 (IGT3) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-34 (IGT4) - C46*1-81 (E1)

      (a) C45*2-34 (IGT4) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-35 (IGT5) - C46*1-81 (E1)

      (a) C45*2-35 (IGT5) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-36 (IGT6) - C46*1-81 (E1)

      (a) C45*2-36 (IGT6) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-38 (IGT7) - C46*1-81 (E1)

      (a) C45*2-38 (IGT7) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (a) C46*1-39 (IGT8) - C46*1-81 (E1)

      (a) C45*2-39 (IGT8) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (b) C46*1-105 (IGF1) - C46*1-81 (E1)

      (b) C45*2-105 (IGF1) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      (b) C46*1-104 (IGF2) - C46*1-81 (E1)

      (b) C45*2-104 (IGF2) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Idling

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as engine rpm increases.

    8. B001VORE03
      *1 10 V/DIV.
      *2 20 ms./DIV.

      WAVEFORM 7:

      Purge VSV
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-63 (PRG) - C46*1-81 (E1)

      C45*2-63 (PRG) - C45*2-81 (E1)

      10 V/DIV., 10 to 100 msec./DIV. Idling

      *1: for RHD

      *2: for LHD

      Tech Tips

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

    9. B001XVPE04
      *a 2 V/DIV.
      *b 20 msec./DIV.

      WAVEFORM 8:

      Vehicle speed signal
      Terminal No. (Symbols) Tool Setting Condition

      A52*1-13 (SPD) - C46*1-81 (E1)

      A38*2-13 (SPD) - C45*2-81 (E1)

      2 V/DIV., 20 msec./DIV. Driving at 20 km/h (12 mph)

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as the vehicle speed increases.

    10. B001Y5FE06
      *a 5 V/DIV.
      *b 1 msec./DIV.

      WAVEFORM 9:

      Throttle actuator positive terminal
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-19 (M+) - C46*1-82 (ME01)

      C45*2-19 (M+) - C45*2-82 (ME01)

      5 V/DIV., 1 msec./DIV. Idling with warm engine

      *1: for RHD

      *2: for LHD

      Tech Tips

      The duty ratio varies depending on the throttle actuator operation.

    11. B001ZX7E04
      *a 5 V/DIV.
      *b 1 msec./DIV.

      WAVEFORM 10:

      Throttle actuator negative terminal
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-18 (M-) - C46*1-82 (ME01)

      C45*2-18 (M-) - C45*2-82 (ME01)

      5 V/DIV., 1 msec./DIV. Idling with warm engine

      *1: for RHD

      *2: for LHD

      Tech Tips

      The duty ratio varies depending on the throttle actuator operation.

    12. B001WJME01
      *a 5 V/DIV.
      *b 10 msec./DIV.

      WAVEFORM 11:

      Engine speed signal
      Terminal No. (Symbols) Tool Setting Condition

      A52*1-15 (TACH) - C46*1-81 (E1)

      A38*2-15 (TACH) - C45*2-81 (E1)

      5 V/DIV., 10 msec./DIV. Idling

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as the engine rpm increases.

    13. B001ZWFE02
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 12:

      CAN communication signal
      Terminal No. (Symbols) Tool Setting Condition

      A52*1-10 (CANH) - C46*1-81 (E1)

      A38*2-10 (CANH) - C45*2-81 (E1)

      1 V/DIV., 10 μsec./DIV. Engine stops and engine switch on (IG)

      *1: for RHD

      *2: for LHD

      Tech Tips

      The waveform varies depending on the CAN communication signal.

    14. B001WK3E02
      *a 1 V/DIV.
      *b 10 μsec./DIV.

      WAVEFORM 13:

      CAN communication signal
      Terminal No. (Symbols) Tool Setting Condition

      A52*1-11 (CANL) - C46*1-81 (E1)

      A38*2-11 (CANL) - C45*2-81 (E1)

      1 V/DIV., 10 μsec./DIV. Engine stops and engine switch on (IG)

      *1: for RHD

      *2: for LHD

      Tech Tips

      The waveform varies depending on the CAN communication signal.

    15. B001XMVE01
      *a 5 V/DIV.
      *b 20 msec./DIV.

      WAVEFORM 14:

      Crankshaft position sensor and camshaft position sensor
      Terminal No. (Symbols) Tool Setting Condition

      CH1: C46*1-110 (NE+) - C46*1-111 (NE-)

      CH1: C45*2-110 (NE+) - C45*2-111 (NE-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      CH2: C46*1-90 (G2) - C46*1-89 (G2-)

      CH2: C45*2-90 (G2) - C45*2-89 (G2-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as the engine rpm increases.

    16. B001W4XE06
      *a 5 V/DIV.
      *b 50 msec./DIV.

      WAVEFORM 15:

      Terminal DI of air injection control driver
      Terminal No. (Symbols) Tool Setting Condition

      C46*1-30 (AIDI) - C46*1-81 (E1)

      C45*2-30 (AIDI) - C45*2-81 (E1)

      5 V/DIV., 50 msec./DIV. Performing system check using GTS (air injection check)

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength changes when the air injection control driver detects malfunctions in the air injection system Click here.

    17. B001XSPE01

      WAVEFORM 16:

      Crankshaft position sensor and VVT sensor for exhaust side
      Terminal No. (Symbols) Tool Setting Condition

      (a) C46*1-110 (NE+) - C46*1-111 (NE-)

      (a) C45*2-110 (NE+) - C45*2-111 (NE-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      (b) C46*1-69 (EV1+) - C46*1-68 (EV1-)

      (b) C45*2-69 (EV1+) - C45*2-68 (EV1-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      (c) C46*1-64 (EV2+) - C46*1-65 (EV2-)

      (c) C45*2-64 (EV2+) - C45*2-65 (EV2-)

      5 V/DIV., 20 msec./DIV. Idle after engine warmed up

      *1: for RHD

      *2: for LHD

      Tech Tips

      The wavelength becomes shorter as engine rpm increases.

    18. B001Y9TE03
      *a 1 V/DIV.
      *b 2 ms./DIV.

      WAVEFORM 17:

      Engine speed signal
      Terminal No. (Symbols) Tool Setting Condition

      A52*1-7 (NEO) - C46*1-81 (E1)

      A38*2-7 (NEO) - C45*2-81 (E1)

      1 V/DIV., 2 msec./DIV. Idle after engine warmed up

      *1: for RHD

      *2: for LHD