SFI SYSTEM(w/o Canister Pump Module) TERMINALS OF ECM
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 and 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 |
|---|---|---|---|---|
| A58-1 (BATT) - G42-53 (E1) | B - BR | Battery (for measuring auxiliary battery voltage and for ECM memory) | Always | 11 to 14 V |
| A58-2 (+B) - G42-53 (E1) | P - BR | Power source of ECM | Engine switch on (IG) | 11 to 14 V |
| A58-3 (+B2) - G42-53 (E1) | P - BR | Power source of ECM | Engine switch on (IG) | 11 to 14 V |
| A58-4 (IGSW) - G42-53 (E1) | B - BR | Engine switch signal | Engine switch on (IG) | 11 to 14 V |
| A58-5 (AICV) - G42-53 (E1) | W - BR | Vacuum switching valve for air intake control valve operation signal | Engine switch on (IG) | 11 to 14 V |
| A58-6 (EXVO) - G42-53 (E1) | L - BR | Exhaust change valve (NO. 1) signal | Engine switch on (IG) | Pulse generation (See waveform 1) |
| A58-7 (IREL) - G42-53 (E1) | B - BR | EDU relay operation signal | Engine switch on (IG) | 11 to 14 V |
| A58-8 (+BM) - G42-53 (E1) | W - BR | Power source of throttle actuator | Always | 11 to 14 V |
| A58-9 (SFTU) - G42-53 (E1) | B - BR | Up-shift switch signal | Engine switch on (IG) | 11 to 14 V |
| Engine switch on (IG) and "+" shift paddle operated (up-shift) | Below 1 V | |||
| A58-10 (PWMS) - G42-53 (E1) | R - BR | Combination switch (S/S+) signal | Engine switch on (IG) and combination switch assembly knob not turned to S/S+ position | 11 to 14 V |
| Engine switch on (IG) and combination switch assembly knob turned and held at S/S+ position | Below 1.0 V | |||
| A58-12 (CANU) - G42-53 (E1) | B - BR | CAN communication line | Engine switch on (IG) | Pulse generation (See waveform 2) |
| A58-13 (CANH) - G42-53 (E1) | B - BR | CAN communication line | Engine switch on (IG) | Pulse generation (See waveform 2) |
| A58-14 (EC) - Body ground | W-B - - | Ground | Always | Below 1 Ω |
| A58-18 (FPC) - G42-53 (E1) | Y - BR | Fuel pump control (for low pressure) | Engine stopped, engine switch on (IG) | Below 1.5 V |
| A58-19 (EXO2) - G42-53 (E1) | R - BR | Exhaust change valve (NO. 2) signal | Engine switch on (IG) | Pulse generation (See waveform 1) |
| A58-22 (SFTD) - G42-53 (E1) | W - BR | Down-shift switch signal | Engine switch on (IG) | 11 to 14 V |
| Engine switch on (IG) and "-" shift paddle operated (down-shift) | Below 1 V | |||
| A58-23 (SNWI) - G42-53 (E1) | LG - BR | No. 2 Combination switch (SNOW) signal | Engine switch on (IG) and combination switch assembly knob not turned to SNOW position | 11 to 14 V |
| Engine switch on (IG) and combination switch assembly knob turned and held at SNOW position | Below 1 V | |||
| A58-24 (SPCN) - G42-53 (E1) | G - BR | Combination switch (Normal/Custom) signal | Engine switch on (IG) and Normal/Custom mode switch not pushed | 11 to 14 V |
| Engine switch on (IG) and Normal/Custom mode switch pushed and held | Below 1 V | |||
| A58-25 (CAND) - G42-53 (E1) | W - BR | CAN communication line | Engine stopped, engine switch on (IG) | Pulse generation (See waveform 3) |
| A58-26 (CANL) - G42-53 (E1) | W - BR | CAN communication line | Engine stopped, engine switch on (IG) | Pulse generation (See waveform 3) |
| A58-27 (STP) - G42-53 (E1) | P - BR | Stop light switch assembly signal | Brake pedal depressed | 7.5 to 14 V |
| Brake pedal released | Below 1.5 V | |||
| A58-28 (ST1-) - G42-53 (E1) | V - 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 | |||
| A58-30 (NEO) - G42-53 (E1) | B - BR | Engine speed signal sent to certification ECU (smart key ECU assembly) | Idling with warm engine | Pulse generation (See waveform 4) |
| A58-31 (TACH) - G42-53 (E1) | B - BR | Engine speed signal | Idling with warm engine | Pulse generation (See waveform 5) |
| A58-33 (TC) - G42-53 (E1) | GR - BR | Terminal TC of DLC3 | Engine switch on (IG) | 11 to 14 V |
| A58-34 (EXVI) - G42-53 (E1) | SB - BR | Exhaust change valve (No. 1) operation signal | Idling with warm engine | Pulse generation (See waveform 6) |
| A58-35 (EXI2) - G42-53 (E1) | BE - BR | Exhaust change valve (No. 2) operation signal | Idling with warm engine | Pulse generation (See waveform 6) |
| A58-37 (VG) - A58-38 (E2G) | R - W | Mass air flow meter sub-assembly signal (bank 1) | Engine switch on (IG) | Pulse generation (See waveform 7) |
| A58-39 (VCVG) - A58-38 (E2G) | B - W | Power source of mass air flow meter sub-assembly (bank 1 (for VG)) | Engine switch on (IG) | 4.8 to 5.2 V |
| A58-40 (THA) - A58-38 (E2G) | G - W | Intake air temperature sensor (LH) | Idling, intake air temperature 0 to 80°C (32 to 176°F) | 0.5 to 3.4 V |
| A58-42 (THA2) - A58-41 (E2G2) | G - W | Intake air temperature sensor (RH) | Idling, intake air temperature 0 to 80°C (32 to 176°F) | 0.5 to 3.4 V |
| A58-43 (STA) - G42-53 (E1) | W - BR | Starter signal | Cranking | 5.5 V or higher |
| A58-44 (SPD) - G42-53 (E1) | L - BR | Vehicle speed signal from combination meter assembly | Driving at 20 km/h (12 mph) | Pulse generation (See waveform 8) |
| A58-46 (MREL) - G42-53 (E1) | V - BR | EFI-MAIN NO. 1 relay operation signal | Engine switch on (IG) | 11 to 14 V |
| A58-47 (VPA) - A58-48 (EPA) | V - W | 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 | |||
| A58-49 (VCPA) - A58-48 (EPA) | P - W | Power source of accelerator pedal position sensor (for VPA) | Engine switch on (IG) | 4.5 to 5.5 V |
| A58-50 (VPA2) - A58-51 (EPA2) | G - L | Accelerator pedal position sensor signal | 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 | |||
| A58-52 (VCP2) - A58-51 (EPA2) | Y - L | Power source of accelerator pedal position sensor (for VPA2) | Engine switch on (IG) | 4.5 to 5.5 V |
| A58-55 (VG2) - A58-41 (E2G2) | R - W | Mass air flow meter sub-assembly signal (bank 2) | Engine switch on (IG) | Pulse generation (see waveform 7) |
| A58-56 (VCCR) - A58-41 (E2G2) | B - W | Power source of mass air flow meter sub-assembly (bank 2 (for VG2)) | Engine switch on (IG) | 4.8 to 5.2 V |
| A58-60 (RFC) - G42-53 (E1) | G - BR | Cooling fan control signal | Engine switch on (IG), A/C ON (Max Cool) | Pulse generation (see waveform 9) |
| G42-16 (HT2B) - G42-46 (E05) | LG - W-B | Heated oxygen sensor (bank2 Sensor2) heater operation signal | Engine switch on (IG) | 11 to 14 V |
| Idling | Below 3.0 V | |||
| G42-17 (HT1B) - G42-52 (E01) | L - W-B | Heated oxygen sensor (bank 1 sensor 2) heater operation signal | Engine switch on (IG) | 11 to 14 V |
| Idling | Below 3.0 V | |||
| G42-18 (HA2A) - G42-46 (E05) | B - W-B | Air fuel ratio sensor (bank 2 sensor 1) heater operation signal | Engine switch on (IG) | 11 to 14 V |
| Idling | Pulse generation (see waveform 10) |
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| G42-19 (HA1A) - G42-50 (E04) | L - W-B | Air fuel ratio sensor (bank 1 sensor 1) heater operation signal | Engine switch on (IG) | 11 to 14 V |
| Idling | Pulse generation (see waveform 10) |
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| G42-20 (OE2+) - G42-21 (OE2-) | W - G | Camshaft timing oil control valve assembly RH (bank 2) operation signal | Idling | Pulse generation (see waveform 11) |
| G42-22 (OE1+) - G42-23 (OE1-) | LG - B | Camshaft timing oil control valve assembly LH (bank 1) operation signal | Idling | Pulse generation (see waveform 11) |
| G42-25 (IGF2) - G42-53 (E1) | V - BR | Ignition coil assembly (ignition confirmation signal) | Engine switch on (IG) | 4.5 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 12) |
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| G42-26 (IGF1) - G42-53 (E1) | G - BR | Ignition coil assembly (ignition confirmation signal) | Engine switch on (IG) | 4.5 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 12) |
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| G42-27 (IGT8) - G42-53 (E1) | BE - BR | No. 8 ignition coil assembly (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-28 (IGT6) - G42-53 (E1) | W - BR | No. 6 ignition coil assembly (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-29 (IGT4) - G42-53 (E1) | P - BR | No. 4 ignition coil assembly (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-30 (IGT2) - G42-53 (E1) | L - BR | No. 2 ignition coil assembly (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-38 (INJ4) - G42-53 (E1) | B - BR | Direct fuel injector assembly confirmation signal | Idling with warm engine | Pulse generation (see waveform 13) |
| G42-39 (INJ3) - G42-53 (E1) | G - BR | Direct fuel injector assembly confirmation signal | Idling with warm engine | Pulse generation (see waveform 13) |
| G42-40 (INJ2) - G42-53 (E1) | LG - BR | Direct fuel injector assembly confirmation signal | Idling with warm engine | Pulse generation (see waveform 13) |
| G42-41 (INJ1) - G42-53 (E1) | GR - BR | Direct fuel injector assembly confirmation signal | Idling with warm engine | Pulse generation (see waveform 13) |
| G42-42 (#4) - G42-53 (E1) | P - BR | No. 4 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| E3-43 (#3) - G42-53 (E1) | R - BR | No. 3 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-44 (#2) - G42-53 (E1) | L - BR | No. 2 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-45 (#1) - G42-53 (E1) | LG - BR | No. 1 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-46 (E05) - Body ground | W-B - - | Ground | Always | Below 1 Ω |
| G42-47 (M-) - G42-49 (ME01) | W - W-B | Throttle actuator operation signal (negative terminal) | Idling with warm engine | Pulse generation (see waveform 14) |
| G42-48 (M+) - G42-49 (ME01) | R - W-B | Throttle actuator operation signal (positive terminal) | Idling with warm engine | Pulse generation (see waveform 15) |
| G42-49 (ME01) - Body ground | W-B - - | Ground | Always | Below 1 Ω |
| G42-50 (E04) - Body ground | W-B - - | Ground | Always | Below 1 Ω |
| G42-51 (E02) - Body ground | W-B - - | Ground | Always | Below 1 Ω |
| G42-52 (E01) - Body ground | W-B - - | Ground | Always | Below 1 Ω |
| G42-53 (E1) - Body ground | BR - - | Ground | Always | Below 1 Ω |
| G42-54 (PRG) - G42-53 (E1) | W - BR | Purge VSV for EVAP system operation signal | Engine switch on (IG) | 11 to 14 V |
| Idling, under purge control | Pulse generation (see waveform 16) |
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| G42-57 (IGT7) - G42-53 (E1) | W - BR | No. 7 ignition coil assembly (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-58 (IGT5) - G42-53 (E1) | LG - BR | No. 5 ignition coil assembly (No. 5 cylinder) (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-59 (IGT3) - G42-53 (E1) | G - BR | No. 3 ignition coil assembly (No. 3 cylinder) (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-60 (IGT1) - G42-53 (E1) | LG - BR | No. 1 ignition coil assembly (ignition signal) | Idling with warm engine | Pulse generation (see waveform 12) |
| G42-62 (FPD2) - G42-53 (E1) | B - BR | Fuel pump with seal sub-assembly (for high pressure side of bank 2) signal | Idling with warm engine | Pulse generation (see waveform 17) |
| G42-63 (FPD) - G42-53 (E1) | G - BR | Fuel pump with seal sub-assembly (for high pressure side of bank 1) signal | Idling with warm engine | Pulse generation (see waveform 17) |
| G42-64 (#80) - G42-52 (E01) | GR - W-B | No. 8 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-65 (#70) - G42-52 (E01) | V - W-B | No. 7 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-66 (#60) - G42-52 (E01) | LG - W-B | No. 6 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-67 (#50) - G42-52 (E01) | L - W-B | No. 5 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-68 (#40) - G42-52 (E01) | G - W-B | No. 4 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-69 (#30) - G42-52 (E01) | R - W-B | No. 3 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-70 (#20) - G42-52 (E01) | W - W-B | No. 2 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-71 (#10) - G42-52 (E01) | B - W-B | No. 1 Port fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling, engine coolant temperature 60°C or less | Pulse generation (see waveform 18) |
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| G42-72 (#8) - G42-53 (E1) | GR - BR | No. 8 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-73 (#7) - G42-53 (E1) | B - BR | No. 7 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-74 (#6) - G42-53 (E1) | W - BR | No. 6 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-75 (#5) - G42-53 (E1) | V - BR | No. 5 Direct fuel injector assembly signal | Engine switch on (IG) | 0 to 5.0 V |
| Idling with warm engine | Pulse generation (see waveform 13) |
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| G42-77 (FPF1) - G42-53 (E1) | R - BR | Fuel pump with seal sub-assembly (for high pressure side of bank 1) signal | Idling with warm engine | Pulse generation (see waveform 17) |
| G42-78 (EDT1) - G42-53 (E1) | B - BR | Camshaft timing control motor with EDU assembly LH (bank 1) signal | Idling with warm engine | Pulse generation (see waveform 19) |
| G42-79 (EMD1) - G42-53 (E1) | W - BR | Camshaft timing control motor with EDU assembly LH (bank 1) signal | Idling with warm engine | Pulse generation (see waveform 20) |
| G42-80 (EMF1) - G42-53 (E1) | GR - BR | Camshaft timing control motor with EDU assembly LH (bank 1) signal | Idling with warm engine | 0.3 to 1.3 V |
| G42-81 (EMR1) - G42-53 (E1) | B - BR | Camshaft timing control motor with EDU assembly LH (bank 1) signal | Idling with warm engine | Pulse generation (see waveform 21) |
| G42-82 (THW) - G42-88 (E2) | V - BR | Engine coolant temperature sensor | Idling, engine coolant temperature 60 to 120°C (140 to 248°F) | 0.2 to 1.0 V |
| G42-89 (VTA2) - G42-120 (ETA) | LG - R | Throttle position sensor signal (for sensor malfunction detection) | Engine stopped, engine switch on (IG), accelerator pedal fully released | 2.1 to 3.1 V |
| G42-90 (VC) - G42-53 (E1) | L - BR | Power source for sensor (specific voltage) | Engine switch on (IG) | 4.5 to 5.5 V |
| G42-91 (OX2B) - G42-92 (EX2B) | L - P | 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 22) |
| G42-93 (OX1B) - G42-94 (EX1B) | L - G | 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 22) |
| G42-95 (GE01) - Body ground | BR - - | Ground | Always | Below 1 Ω |
| G42-96 (PR) - G42-127 (EPR) | R - P | Fuel pressure sensor signal (for engine control) | Idling with warm engine | 0.9 to 1.2 V |
| G42-97 (KNK4) - G42-129 (EKN4) | G - R | Knock control sensor (bank 2 sensor 2) | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation (see waveform 23) |
| G42-98 (KNK3) - G42-130 (EKN3) | W - B | Knock control sensor (bank 1 sensor 2) | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation (see waveform 23) |
| G42-99 (KNK2) - G42-131 (EKN2) | G - R | Knock control sensor (bank 2 sensor 1) | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation (see waveform 23) |
| G42-100 (KNK1) - G42-132 (EKNK) | W - B | Knock control sensor (bank 1 sensor 1) | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation (see waveform 23) |
| G42-109 (FPF2) - G42-53 (E1) | P - BR | Fuel pump with seal sub-assembly (for high pressure side of bank 2) signal | Idling with warm engine | Pulse generation (see waveform 17) |
| G42-110 (EDT2) - G42-53 (E1) | W - BR | Camshaft timing control motor with EDU assembly RH (bank 2) signal | Idling with warm engine | Pulse generation (see waveform 19) |
| G42-111 (EMD2) - G42-53 (E1) | LG - BR | Camshaft timing control motor with EDU assembly RH (bank 2) signal | Idling with warm engine | Pulse generation (see waveform 20) |
| G42-112 (EMF2) - G42-53 (E1) | G - BR | Camshaft timing control motor with EDU assembly RH (bank 2) signal | Idling with warm engine | 0.3 to 1.3 V |
| G42-113 (EMR2) - G42-53 (E1) | L - BR | Camshaft timing control motor with EDU assembly RH (bank 2) signal | Idling with warm engine | Pulse generation (see waveform 21) |
| G42-121 (VCTA) - G42-120 (ETA) | G - R | Power source of throttle position sensor (specific voltage) | Engine switch on (IG) | 4.5 to 5.5 V |
| G42-122 (VTA) - G42-120 (ETA) | W - R | Throttle position sensor signal (for engine control) | Accelerator pedal fully released | 0.6 to 1.1 V |
| Accelerator pedal fully depressed (engine running) | 3.2 to 4.8 V | |||
| G42-123 (A2A+) - G42-53 (E1) | B - BR | Air fuel ratio sensor (bank 2 sensor 1) signal | Engine switch on (IG) | 3.0 to 3.6 V* |
| G42-124 (A2A-) - G42-53 (E1) | W - BR | Air fuel ratio sensor (bank 2 sensor 1) signal | Engine switch on (IG) | 2.7 to 3.3 V* |
| G42-125 (A1A+) - G42-53 (E1) | R - BR | Air fuel ratio sensor (bank 1 sensor 1) signal | Engine switch on (IG) | 3.0 to 3.6 V* |
| G42-126 (A1A-) - G42-53 (E1) | G - BR | Air fuel ratio sensor (bank 1 sensor 1) signal | Engine switch on (IG) | 2.7 to 3.3 V* |
| G42-128 (VCPR) - G42-127 (EPR) | L - P | Power source of fuel pressure sensor (specific voltage) | Engine switch on (IG) | 4.75 to 5.25 V |
| G42-133 (G2+) - G42-101 (G2-) | B - BR | Camshaft position sensor signal | Idling with warm engine | Pulse generation (see waveform 24) |
| G42-134 (NE+) - G42-102 (NE-) | W - B | Crankshaft position sensor signal | Idling with warm engine | Pulse generation (see waveform 25) |
| G42-135 (VV2+) - G42-103 (VV2-) | Y - V | VVT sensor (for intake camshaft of bank 2) signal | Idling with warm engine | Pulse generation (see waveform 26) |
| G42-136 (EV2+) - G42-104 (EV2-) | P - LG | VVT sensor (for exhaust camshaft of bank 2) signal | Idling with warm engine | Pulse generation (see waveform 27) |
| G42-137 (EV1+) - G42-105 (EV1-) | G - R | VVT sensor (for exhaust camshaft of bank 1) signal | Idling with warm engine | Pulse generation (see waveform 27) |
| G42-138 (VV1+) - G42-106 (VV1-) | GR - W | VVT sensor (for intake camshaft of bank 1) signal | Idling with warm engine | Pulse generation (see waveform 26) |
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*: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
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WAVEFORM 1
*a 2 V/DIV. *b 10 ms/DIV. Exhaust Change Valve Requested Position Signal ECM Terminal Name Between EXVO and E1, or EXO2 and E1 Tester Range 2 V/DIV., 10 ms./DIV. Condition Engine switch on (IG) -
WAVEFORM 2
*a 1 V/DIV. *b 10 μs./DIV. CAN Communication Signal (Reference) ECM Terminal Name Between CANH and E1
Between CANU 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.
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WAVEFORM 3
*a 1 V/DIV. *b 10 μs./DIV. CAN Communication Signal (Reference) ECM Terminal Name Between CANL and E1
Between CAND 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.
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WAVEFORM 4
*a 2 V/DIV. *b 2 ms./DIV. Engine Speed Signal ECM Terminal Name Between NEO and E1 Tester Range 2 V/DIV., 2 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 5
*a 5 V/DIV. *b 10 ms./DIV. Engine Speed Signal ECM Terminal Name Between TACH and E1 Tester Range 5 V/DIV., 10 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 6
*a 5 V/DIV. *b 100 ms/DIV. Exhaust Change Valve Status Signal ECM Terminal Name Between EXVI and E1, or EXI2 and E1 Tester Range 5 V/DIV., 100 ms./DIV. Condition Idling with warm engine -
WAVEFORM 7
*a 1 V/DIV. *b 100 μs./DIV. Mass Air Flow Meter Sub-assembly Signal ECM Terminal Name Between VG and E2G, or VG2 and E2G2 Tester Range 1 V/DIV., 100 μs./DIV. Condition Engine switch on (IG) -
WAVEFORM 8
*a 2 V/DIV. *b 20 ms./DIV. Vehicle Speed Signal ECM Terminal Name Between SPD and E1 Tester Range 2 V/DIV., 20 ms./DIV. Condition Driving at 20 km/h (12 mph) Tech Tips
The wavelength becomes shorter as the vehicle speed increases.
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WAVEFORM 9
*a 1 V/DIV. *b 20 ms./DIV. Cooling Fan Control Signal ECM Terminal Name Between RFC and E1 Tester Range 1 V/DIV., 20 ms./DIV. Condition Engine switch on (IG), A/C switch on (max cool) Tech Tips
The duty ratio varies depending on the engine coolant temperature.
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WAVEFORM 10
*a 5 V/DIV. *b 10 ms./DIV. Air Fuel Ratio Sensor (Sensor 1) Heater Operation Signal ECM Terminal Name Between HA1A and E04, or HA2A and E05 Tester Range 5 V/DIV., 10 ms./DIV. Condition Idling -
WAVEFORM 11
*a 5 V/DIV. *b 1 ms./DIV. Camshaft Timing Oil Control Valve Assembly Operation Signal ECM Terminal Name Between OE1+ and OE1-, or OE2+ and OE2- Tester Range 5 V/DIV., 1 ms./DIV. Condition Idling -
WAVEFORM 12
*a 2 V/DIV. *b 20 ms./DIV. Ignition Coil Assembly Signal (IGT and IGF Signal) ECM Terminal Name CH1: IGT1, 4, 6 or 7 and E1
CH2: IGF1 and E1
CH1: IGT2, 3, 5 or 8 and E1
CH2: IGF2 and E1
Tester Range 2 V/DIV., 20 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 13
*a 2 V/DIV. *b 20 ms./DIV. Direct Fuel Injector Assembly Signal and Injection Confirmation Signal ECM Terminal Name CH1: Between #1 or #6 and E1
CH2: Between INJ1 and E1
CH1: Between #4 or #7 and E1
CH2: Between INJ2 and E1
CH1: Between #5 or #8 and E1
CH2: Between INJ3 and E1
CH1: Between #2 or #3 and E1
CH2: Between INJ4 and E1
Tester Range 2 V/DIV., 20 ms./DIV. Condition Idling with warm engine Tech Tips
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The wavelength becomes shorter as the engine speed increases.
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When the direct injection injectors are operating, Direct is displayed for Injection Way of the Data List.
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WAVEFORM 14
*a 5 V/DIV. *b 1 ms./DIV. 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.
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WAVEFORM 15
*a 5 V/DIV. *b 1 ms./DIV. 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.
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WAVEFORM 16
*1 10 V/DIV. *2 20 ms./DIV. Purge VSV Operation Signal ECM Terminal Name Between PRG and E1 Tester Range 10 V/DIV., 20 ms./DIV. Condition Idling, under purge control Tech Tips
If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.
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WAVEFORM 17
*a 2 V/DIV. *b 5 ms./DIV. Fuel Pump with Seal Sub-assembly (for High Pressure Side) Signal (Spill Control Valve) ECM Terminal Name CH1: Between FPD and E1
CH2: Between FPF1 and E1
CH1: Between FPD2 and E1
CH2: Between FPF2 and E1
Tester Range 2 V/DIV., 5 ms./DIV. Condition Idling with warm engine -
WAVEFORM 18
*a 5 V/DIV. *b 5 ms./DIV. Port Fuel Injector Assembly Signal ECM Terminal Name Between #10 (to #80) and E01 Tester Range 5 V/DIV., 5 ms./DIV. Condition Idling, engine coolant temperature 60°C or less Tech Tips
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The wavelength becomes shorter as the engine speed increases.
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When the port injection injectors are operating, Port is displayed for Injection Way of the Data List.
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WAVEFORM 19
*a 1 V/DIV. *b 5 ms./DIV. Camshaft Timing Control Motor with EDU Assembly EDT Signal ECM Terminal Name Between EDT1 and E1 Between EDT2 and E1 Tester Range 1 V/DIV., 5 ms./DIV. Condition Idling with warm engine -
WAVEFORM 20
*a 2 V/DIV. *b 100 ms./DIV. Camshaft Timing Control Motor with EDU Assembly EMD Signal ECM Terminal Name Between EMD1 and E1 Between EMD2 and E1 Tester Range 2 V/DIV., 100 ms./DIV. Condition Idling with warm engine -
WAVEFORM 21
*a 2 V/DIV. *b 5 ms./DIV. Camshaft Timing Control Motor with EDU Assembly EMR Signal ECM Terminal Name Between EMR1 and E1 Between EMR2 and E1 Tester Range 2 V/DIV., 5 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 22
*1 0.2 V/DIV. *2 200 ms./DIV. 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.
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WAVEFORM 23
*a 1 V/DIV. *b 1 ms./DIV. Knock Control Sensor Signal ECM Terminal Name Between KNK1 and EKNK
Between KNK2 and EKN2
Between KNK3 and EKN3
Between KNK4 and EKN4
Tester Range 1 V/DIV., 1 ms./DIV. Condition Engine speed maintained at 4000 rpm after warming up engine Tech Tips
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The wavelength becomes shorter as the engine speed increases.
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The waveforms and amplitudes displayed differ slightly depending on the vehicle condition.
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WAVEFORM 24
*a 5 V/DIV. *b 20 ms./DIV. Camshaft Position Sensor Signal ECM Terminal Name Between G2+ and G2- Tester Range 5 V/DIV., 20 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 25
*a 2 V/DIV. *b 20 ms./DIV. Crankshaft Position Sensor Signal ECM Terminal Name Between NE+ and NE- Tester Range 2 V/DIV., 20 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 26
*a 5 V/DIV. *b 20 ms./DIV. VVT Sensor (for Intake Camshaft) Signal ECM Terminal Name CH1: Between VV1+ and VV1-
CH2: Between VV2+ and VV2-
Tester Range 5 V/DIV., 20 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.
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WAVEFORM 27
*a 5 V/DIV. *b 20 ms./DIV. VVT Sensor (for Exhaust Camshaft) Signal ECM Terminal Name CH1: Between EV1+ and EV1-
CH2: Between EV2+ and EV2-
Tester Range 5 V/DIV., 20 ms./DIV. Condition Idling with warm engine Tech Tips
The wavelength becomes shorter as the engine speed increases.