Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1GR-FE ENGINE CONTROL
SFI SYSTEM - TERMINALS OF ECM
Measure the voltage according to the value(s) in the table below.
- HINT:
- The standard 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 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 |
| A38*1-1 (BATT) - C45*1-81 (E1) A52*2-1 (BATT) - C46*2-81 (E1) | L - BR | Battery (for measuring the battery voltage and for the ECM memory) | Always | 11 to 14 V |
| C45*1-41 (+BM) - C45*1-81 (E1) C46*2-41 (+BM) - C46*2-81 (E1) | P - BR | Power source of throttle motor | Always | 11 to 14 V |
| A38*1-28 (IGSW) - C45*1-81 (E1) A52*2-28 (IGSW) - C46*2-81 (E1) | B - BR | Ignition switch | Ignition switch ON | 11 to 14 V |
| A38*1-3 (+B) - C45*1-81 (E1) A52*2-3 (+B) - C46*2-81 (E1) | B - BR | Power source of ECM | Ignition switch ON | 11 to 14 V |
| A38*1-2 (+B2) - C45*1-81 (E1) A52*2-2 (+B2) - C46*2-81 (E1) | B - BR | Power source of ECM | Ignition switch ON | 11 to 14 V |
| C45*1-58 (OC1+) - C45*1-57 (OC1-) C46*2-58 (OC1+) - C46*2-57 (OC1-) | L-B - R-B | Camshaft timing oil control valve (for intake side of bank 1) | Ignition switch ON | Pulse generation (See waveform 1) |
| C45*1-52 (OC2+) - C45*1-51 (OC2-) C46*2-52 (OC2+) - C46*2-51 (OC2-) | B - B-L | Camshaft timing oil control valve (for intake side bank 2) | Ignition switch ON | Pulse generation (See waveform 1) |
| C45*1-56 (OE1+) - C45*1-55 (OE1-) C46*2-56 (OE1+) - C46*2-55 (OE1-) | G-W - B-R | Camshaft timing oil control valve (for exhaust side of bank 1) | Ignition switch ON | Pulse generation (See waveform 1) |
| C45*1-50 (OE2+) - C45*1-49 (OE2-) C46*2-50 (OE2+) - C46*2-49 (OE2-) | R-W - L-W | Camshaft timing oil control valve (for exhaust side of bank 2) | Ignition switch ON | Pulse generation (See waveform 1) |
| A38*1-34 (MREL) - C45*1-81 (E1) A52*2-34 (MREL) - C46*2-81 (E1) | W-R - BR | EFI relay | Ignition switch ON | 11 to 14 V |
| C45*1-67 (VCV1) - C45*1-97 (ETHW) C46*2-67 (VCV1) - C46*2-97 (ETHW) | L - BR | Power source of sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C45*1-66 (VCV2) - C45*1-98 (ETHA) C46*2-66 (VCV2) - C46*2-98 (ETHA) | L - BR | Power source of sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C45*1-74 (VG) - C45*1-75 (E2G) C46*2-74 (VG) - C46*2-75 (E2G) | L-Y - G-W | Mass air flow meter | Idling, shift lever position P or N, A/C switch off | 0.5 to 3.0 V |
| C45*1-73 (THA) - C45*1-98 (ETHA) C46*2-73 (THA) - C46*2-98 (ETHA) | Y-B - BR | Intake air temperature sensor | Idling, intake air temperature 20°C (68°F) | 0.5 to 3.4 V |
| C45*1-76 (THW) - C45*1-97 (ETHW) C46*2-76 (THW) - C46*2-97 (ETHW) | G-B - BR | Engine coolant temperature sensor | Idling, engine coolant temperature 80°C (176°F) | 0.2 to 1.0 V |
| C45*1-80 (VCTA) - C45*1-79 (ETA) C46*2-80 (VCTA) - C46*2-79 (ETA) | L - B | Power source of throttle position sensor (specific voltage) | Ignition switch ON | 4.5 to 5.5 V |
| C45*1-78 (VTA1) - C45*1-79 (ETA) C46*2-78 (VTA1) - C46*2-79 (ETA) | R-Y - B | Throttle position sensor (for engine control) | Ignition switch ON, throttle valve fully closed | 0.5 to 1.2 V |
| Ignition switch ON, throttle valve fully open | 3.2 to 4.8 V | |||
| C45*1-77 (VTA2) - C45*1-79 (ETA) C46*2-77 (VTA2) - C46*2-79 (ETA) | Y-B - B | Throttle position sensor (for sensor malfunction detection) | Ignition switch ON, throttle valve fully closed | 2.1 to 3.1 V |
| Ignition switch ON, throttle valve fully open | 4.5 to 5.0 V | |||
| A38*1-55 (VPA) - A38*1-58 (EPA) A52*2-55 (VPA) - A52*2-58 (EPA) | R - W R - W-L*4 | Accelerator pedal position sensor (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 | |||
| A38*1-56 (VPA2) - A38*1-60 (EPA2) A52*2-56 (VPA2) - A52*2-60 (EPA2) | GR - BE GR-G - BR*4 | Accelerator pedal position sensor (for sensor malfunction detection) | Ignition switch ON, accelerator pedal fully released | 1.2 to 2.0 V |
| Ignition switch ON, accelerator pedal fully depressed | 3.4 to 5.0 V | |||
| A38*1-57 (VCPA) - A38*1-58 (EPA) A52*2-57 (VCPA) - A52*2-58 (EPA) | L - W L-W - W-L*4 | Power source of accelerator pedal position sensor (for VPA) | Ignition switch ON | 4.5 to 5.5 V |
| A38*1-59 (VCP2) - A38*1-60 (EPA2) A52*2-59 (VCP2) - A52*2-60 (EPA2) | V - BE V - BR*4 | Power source of accelerator pedal position sensor (for VPA2) | Ignition switch ON | 4.5 to 5.5 V |
| C45*1-22 (HA1A) - C45*1-23 (E04) C46*2-22 (HA1A) - C46*2-23 (E04) | L-R - W-B | Air fuel ratio sensor heater | Idling with warm engine | Pulse generation (See waveform 16) |
| Ignition switch ON | 11 to 14 V | |||
| C45*1-20 (HA2A) - C45*1-21 (E05) C46*2-20 (HA2A) - C46*2-21 (E05) | G - W-B | Air fuel ratio sensor heater | Idling with warm engine | Pulse generation (See waveform 16) |
| Ignition switch ON | 11 to 14 V | |||
| C45*1-126 (A1A+) - C45*1-81 (E1) C46*2-126 (A1A+) - C46*2-81 (E1) | G - BR | Air fuel ratio sensor | Ignition switch ON | 3.3 V*3 |
| C45*1-103 (A2A+) - C45*1-81 (E1) C46*2-103 (A2A+) - C46*2-81 (E1) | V - BR | Air fuel ratio sensor | Ignition switch ON | 3.3 V*3 |
| C45*1-125 (A1A-) - C45*1-81 (E1) C46*2-125 (A1A-) - C46*2-81 (E1) | R - BR | Air fuel ratio sensor | Ignition switch ON | 2.9 V*3 |
| C45*1-102 (A2A-) - C45*1-81 (E1) C46*2-102 (A2A-) - C46*2-81 (E1) | P - BR | Air fuel ratio sensor | Ignition switch ON | 2.9 V*3 |
| C45*1-45 (HT1B) - C45*1-46 (E03) C46*2-45 (HT1B) - C46*2-46 (E03) | G - W-B | Heated oxygen sensor heater | Idling | Below 3.0 V |
| Ignition switch ON | 11 to 14 V | |||
| C45*1-44 (HT2B) - C45*1-46 (E03) C46*2-44 (HT2B) - C46*2-46 (E03) | B - W-B | Heated oxygen sensor heater | Idling | Below 3.0 V |
| Ignition switch ON | 11 to 14 V | |||
| C45*1-114 (OX1B) - C45*1-115 (EX1B) C46*2-114 (OX1B) - C46*2-115 (EX1B) | W - B-R | Heated oxygen sensor | Engine speed maintained at 2500 rpm for 2 minutes after warming up engine | Pulse generation (See waveform 2) |
| C45*1-112 (OX2B) - C45*1-113 (EX2B) C46*2-112 (OX2B) - C46*2-113 (EX2B) | B - BR | Heated oxygen sensor | Engine speed maintained at 2500 rpm for 2 minutes after warming up engine | Pulse generation (See waveform 2) |
| C45*1-86 (#10) - C45*1-43 (E01) C46*2-86 (#10) - C46*2-43 (E01) | R-L - W-B | Fuel injector | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 3) | |||
| C45*1-109 (#20) - C45*1-43 (E01) C46*2-109 (#20) - C46*2-43 (E01) | L - W-B | Fuel injector | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 3) | |||
| C45*1-85 (#30) - C45*1-43 (E01) C46*2-85 (#30) - C46*2-43 (E01) | R-B - W-B | Fuel injector | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 3) | |||
| C45*1-108 (#40) - C45*1-43 (E01) C46*2-108 (#40) - C46*2-43 (E01) | Y - W-B | Fuel injector | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 3) | |||
| C45*1-84 (#50) - C45*1-43 (E01) C46*2-84 (#50) - C46*2-43 (E01) | G - W-B | Fuel injector | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 3) | |||
| C45*1-107 (#60) - C45*1-43 (E01) C46*2-107 (#60) - C46*2-43 (E01) | R - W-B | Fuel injector | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 3) | |||
| C45*1-94 (KNK1) - C45*1-93 (EKNK) C46*2-94 (KNK1) - C46*2-93 (EKNK) | G - R | Knock sensor (bank 1) | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation (See waveform 4) |
| C45*1-117 (KNK2) - C45*1-116 (EKN2) C46*2-117 (KNK2) - C46*2-116 (EKN2) | W - B | Knock sensor (bank 2) | Engine speed maintained at 4000 rpm after warming up engine | Pulse generation (See waveform 4) |
| C45*1-90 (VV1+) - C45*1-89 (VV1-) C46*2-90 (VV1+) - C46*2-89 (VV1-) | R - L-R | VVT sensor (intake side of bank 1) | Idling | Pulse generation (See waveform 5) |
| C45*1-87 (VV2+) - C45*1-88 (VV2-) C46*2-87 (VV2+) - C46*2-88 (VV2-) | R - G | VVT sensor (intake side of bank 2) | Idling | Pulse generation (See waveform 5) |
| C45*1-69 (EV1+) - C45*1-68 (EV1-) C46*2-69 (EV1+) - C46*2-68 (EV1-) | L-B - L-W | VVT sensor (exhaust side of bank 1) | Idling | Pulse generation (See waveform 15) |
| C45*1-64 (EV2+) - C45*1-65 (EV2-) C46*2-64 (EV2+) - C46*2-65 (EV2-) | G-W - R-W | VVT sensor (exhaust side of bank 2) | Idling | Pulse generation (See waveform 15) |
| C45*1-110 (NE+) - C45*1-111 (NE-) C46*2-110 (NE+) - C46*2-111 (NE-) | B - W | Crankshaft position sensor | Idling | Pulse generation (See waveform 5) |
| C45*1-40 (IGT1) - C45*1-81 (E1) C46*2-40 (IGT1) - C46*2-81 (E1) | B-R - BR | Ignition coil (ignition signal) | Idling | Pulse generation (See waveform 6) |
| C45*1-39 (IGT2) - C45*1-81 (E1) C46*2-39 (IGT2) - C46*2-81 (E1) | L-B - BR | Ignition coil (ignition signal) | Idling | Pulse generation (See waveform 6) |
| C45*1-38 (IGT3) - C45*1-81 (E1) C46*2-38 (IGT3) - C46*2-81 (E1) | B - BR | Ignition coil (ignition signal) | Idling | Pulse generation (See waveform 6) |
| C45*1-37 (IGT4) - C45*1-81 (E1) C46*2-37 (IGT4) - C46*2-81 (E1) | L-B - BR | Ignition coil (ignition signal) | Idling | Pulse generation (See waveform 6) |
| C45*1-36 (IGT5) - C45*1-81 (E1) C46*2-36 (IGT5) - C46*2-81 (E1) | G-R - BR | Ignition coil (ignition signal) | Idling | Pulse generation (See waveform 6) |
| C45*1-35 (IGT6) - C45*1-81 (E1) C46*2-35 (IGT6) - C46*2-81 (E1) | G - BR | Ignition coil (ignition signal) | Idling | Pulse generation (See waveform 6) |
| C45*1-104 (IGF1) - C45*1-81 (E1) C46*2-104 (IGF1) - C46*2-81 (E1) | G-B - BR | Ignition coil (ignition confirmation signal) | Ignition switch ON | 4.5 to 5.5 V |
| Idling | Pulse generation (See waveform 6) | |||
| C45*1-63 (PRG) - C45*1-81 (E1) C46*2-63 (PRG) - C46*2-81 (E1) | L-B - BR | Purge VSV | Ignition switch ON | 11 to 14 V |
| Idling | Pulse generation (See waveform 7) | |||
| A38*1-13 (SPD) - C45*1-81 (E1) A52*2-13 (SPD) - C46*2-81 (E1) | V -BR V-R - BR*4 | Speed signal from combination meter | Ignition switch ON, driving wheels rotated slowly | Pulse generation (See waveform 8) |
| A38*1-46 (STA) - C45*1-81 (E1) A52*2-46 (STA) - C46*2-81 (E1) | R - BR R-B - BR*4 | Starter signal | Cranking | 6.0 V or higher |
| A38*1-36 (STP) - C45*1-81 (E1) A52*2-36 (STP) - C46*2-81 (E1) | R - BR | Stop light switch | Brake pedal depressed | 7.5 to 14 V |
| Brake pedal released | Below 1.5 V | |||
| A38*1-35 (ST1-) - C45*1-81 (E1) A52*2-35 (ST1-) - C46*2-81 (E1) | P - BR R-W - BR*4 | Stop light switch (opposite to STP terminal) | Ignition switch ON, brake pedal depressed | Below 1.5 V |
| Ignition switch ON, brake pedal released | 7.5 to 14 V | |||
| C45*1-120 (NSW) - C45*1-81 (E1) C46*2-120 (NSW) - C46*2-81 (E1) | L - BR | Park/neutral position switch | Ignition switch ON, shift lever in P or N | Below 3.0 V |
| Ignition switch ON, shift lever not in P or N | 11 to 14 V | |||
| C45*1-19 (M+) - C45*1-82 (ME01) C46*2-19 (M+) - C46*2-82 (ME01) | R - W-B | Throttle actuator | Idling with warm engine | Pulse generation (See waveform 9) |
| C45*1-18 (M-) - C45*1-82 (ME01) C46*2-18 (M-) - C46*2-82 (ME01) | G - W-B | Throttle actuator | Idling with warm engine | Pulse generation (See waveform 10) |
| A38*1-24 (W) - C45*1-81 (E1) A52*2-24 (W) - C46*2-81 (E1) | R - BR R-Y - BR*4 | MIL | Ignition switch ON | Below 3.0 V |
| Idling | 11 to 14 V | |||
| A38*1-16 (TC) - C45*1-81 (E1) A52*2-16 (TC) - C46*2-81 (E1) | V - BR V-W - BR*4 | Terminal TC of DLC3 | Ignition switch ON | 11 to 14 V |
| A38*1-15 (TACH) - C45*1-81 (E1) A52*2-15 (TACH) - C46*2-81 (E1) | W - BR W-G - BR*4 | Engine speed | Idling | Pulse generation (See waveform 11) |
| C45*1-72 (PSP) - C45*1-97 (ETHW) C46*2-72 (PSP) - C46*2-97 (ETHW) | L-R - BR | Power steering oil pressure sensor | Ignition switch ON | 0.33 to 3.60 V |
| C45*1-28 (AIRV) - C45*1-81 (E1) | BR - BR | Emission control valve signal for secondary air injection system | Ignition switch ON | 11 to 14 V |
| C45*1-54 (AIRP) - C45*1-81 (E1) | P - BR | Air pump control signal for secondary air injection system | Ignition switch ON | 11 to 14 V |
| C45*1-30 (AIDI) - C45*1-81 (E1) | G - BR | Diagnostic information signal for secondary air injection system | Air injection system operating | Pulse generation (See waveform 14) |
| C45*1-60 (AIR1) - C45*1-81 (E1) | G-W - BR | No. 2 emission control valve for secondary air injection system | Idling | 11 to 14 V |
| A38*1-54 (AIP) - C45*1-98 (ETHA) | P-L - BR | Secondary air injection system pressure signal | Ignition switch ON | 0.5 to 4.5 V |
| A38*1-53 (AIP2) - C45*1-98 (ETHA) | L-B - BR | Secondary air injection system pressure signal | Ignition switch ON | 0.5 to 4.5 V |
| C45*1-61 (HAI1) - C45*1-81 (E1) | G - BR | Air pump heater for secondary air injection system | Air pump heater operating | 11 to 14 V |
| A38*1-10 (CANH) - C45*1-81 (E1) A52*2-10 (CANH) - C46*2-81 (E1) | P - BR | CAN communication line | Ignition switch ON | Pulse generation (See waveform 12) |
| A38*1-11 (CANL) - C45*1-81 (E1) A52*2-11 (CANL) - C46*2-81 (E1) | B - BR | CAN communication line | Ignition switch ON | Pulse generation (See waveform 13) |
| A38*1-52 (FPC) - C45*1-81 (E1) A52*2-52 (FPC) - C46*2-81 (E1) | W - BR | Fuel pump control | Engine stopped and ignition switch ON | Below 1.5 V |
| A38*1-14 (STSW) - C45*1-81 (E1) A52*2-14 (STSW) - C46*2-81 (E1) | R - BR | Ignition switch signal | Shift lever in P or N, ignition switch START | 6.0 V or higher |
| A38*1-41 (ACCR) - C45*1-81 (E1) A52*2-41 (ACCR) - C46*2-81 (E1) | L-Y - BR | ACC (accessory) relay control signal | Cranking | Below 1.5 V |
| C45*1-16 (STAR) - C45*1-81 (E1) C46*2-16 (STAR) - C46*2-81 (E1) | L - BR | Starter relay control | Ignition switch ON | Below 1.5 V |
| Cranking | 6.0 V or higher | |||
| C45*1-32 (ALT) - C45*1-81 (E1) C46*2-32 (ALT) - C46*2-81 (E1) | R - BR | Generator | Ignition switch ON | 11 to 14 V |
*1: for LHD
*2: for RHD
*3: The ECM terminal voltage is constant regardless of the output voltage from the sensor.
*4: GRJ200L-GNANKC
| WAVEFORM 1 |
| ECM Terminal Name | Between OC1+ and OC1- Between OC2+ and OC2- Between OE1+ and OE1- Between OE2+ and OE2- |
| Tester Range | 5 V/DIV., 1 msec./DIV. |
| Condition | Idling |
| WAVEFORM 2 |
| ECM Terminal Name | Between OX1B and EX1B or OX2B and EX2B |
| Tester Range | 0.2 V/DIV., 200 msec./DIV. |
| Condition | Engine speed maintained at 2500 rpm for 2 minutes after warming up engine |
- HINT:
- In the Data List, items O2S B1S2 and O2S B2S2 show the ECM input values from the heated oxygen sensors.
| WAVEFORM 3 |
| ECM Terminal Name | Between #10 (to #60) and E01 |
| Tester Range | 30 V/DIV., 20 msec./DIV. |
| Condition | Idling |
- HINT:
- The wavelength becomes shorter as the engine speed increases.
| WAVEFORM 4 |
| ECM Terminal Name | Between KNK1 and EKNK or KNK2 and EKN2 |
| Tester Range | 1 V/DIV., 0.01 to 1 msec./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.
| WAVEFORM 5 |
Crankshaft position sensor
VVT sensor
| ECM Terminal Name | (a) Between NE+ and NE- (b) Between VV1+ and VV1- or VV2+ and VV2- |
| Tester Range | 2 V/DIV., 20 msec./DIV. |
| Condition | Idling |
- HINT:
- The wavelength becomes shorter as the engine speed increases.
| WAVEFORM 6 |
Igniter IGT signal (from ECM to igniter)
Igniter IGF signal (from igniter to ECM)
| ECM Terminal Name | (a) Between IGT (1 to 6) and E1 (b) Between IGF1 and E1 |
| Tester Ranges | 2 V/DIV., 20 msec./DIV. |
| Condition | Idling |
- HINT:
- The wavelength becomes shorter as the engine speed increases.
| WAVEFORM 7 |
| ECM Terminal Name | Between PRG and E1 |
| Tester Range | 10 V/DIV., 20 msec./DIV. |
| Condition | Idling |
- HINT:
- If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.
| WAVEFORM 8 |
| ECM Terminal Name | Between SPD and E1 |
| Tester Range | 2 V/DIV., 20 msec./DIV. |
| Condition | Ignition switch ON, driving wheels rotated slowly |
- HINT:
- The wavelength becomes shorter as the vehicle speed increases.
| WAVEFORM 9 |
| ECM Terminal Name | Between M+ and ME01 |
| Tester Range | 5 V/DIV., 1 msec./DIV. |
| Condition | Idling with warm engine |
- HINT:
- The duty ratio varies depending on the throttle actuator operation.
| WAVEFORM 10 |
| ECM Terminal Name | Between M- and ME01 |
| Tester Range | 5 V/DIV., 1 msec./DIV. |
| Condition | Idling with warm engine |
- HINT:
- The duty ratio varies depending on the throttle actuator operation.
| WAVEFORM 11 |
| ECM Terminal Name | Between TACH and E1 |
| Tester Range | 5 V/DIV., 10 msec./DIV. |
| Condition | Idling |
- HINT:
- The wavelength becomes shorter as the engine speed increases.
| WAVEFORM 12 |
| ECM Terminal Name | Between CANH and E1 |
| Tester Range | 1 V/DIV., 10 μsec./DIV. |
| Condition | Ignition switch ON |
- HINT:
- The waveform varies depending on the CAN communication signal.
| WAVEFORM 13 |
| ECM Terminal Name | Between CANL and E1 |
| Tester Range | 1 V/DIV., 10 μsec./DIV. |
| Condition | Ignition switch ON |
- HINT:
- The waveform varies depending on the CAN communication signal.
| WAVEFORM 14 |
| ECM Terminal Name | Between AIDI and E1 |
| Tester Range | 5 V/DIV., 50 msec./DIV. |
| Condition | Performing Active Test using GTS (Secondary Air Injection Check) |
- HINT:
- The wavelength changes when the air injection control driver detects malfunctions in the secondary air injection system ().
| WAVEFORM 15 |
| ECM Terminal Name | Between NE+ and NE- Between EV1+ and EV1- Between EV2+ and EV2- |
| Tester Range | 5 V/DIV., 20 msec./DIV. |
| Condition | Idling |
- HINT:
- The wavelength becomes shorter as the engine speed increases.
| WAVEFORM 16 |
| ECM Terminal Name | Between HA1A and E04 Between HA2A and E05 |
| Tester Range | 5 V/DIV., 10 msec./DIV. |
| Condition | Idling with warm engine |
- HINT:
- The wavelength varies in accordance with the engine operating conditions.