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Terminals Of ECM

Fig 1: Identifying Terminals Of ECM
G03366983Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TERMINALS SPECIFICATIONS

Symbols (Terminals No.) Wiring Color Terminal Description Condition STD Voltage (V)
BATT (E6 - 3) - E1 (E4 - 7) B-Y - BR Battery (For Measuring The Battery Voltage And For The ECM Memory) Always 8 to 14
FC (E6 - 10) - E1 (E4 - 7) G - BR Fuel Pump Control IG Switch ON 8 to 14
Idling Below 3.5
W (E6 - 11) - E1 (E4 - 7) Y-R - BR MIL Idling 8 to 14
IG Switch ON Below 3.5
+B (E6 - 1) - E1 (E4 - 7) B-R - BR Power Source Of ECM IG Switch ON 8 to 14
STP (E5 - 19) - E1 (E4 - 7) G-W - BR Stop Light Switch Brake Pedal Depressed 8 To 14
Brake Pedal Released Below 1.5
F/PS (E6 - 14) - E1 (E4 - 7) Y - BR Airbag Sensor IG Switch ON Pulse Generation
STA (E4 - 9) - E1 (E4 - 7) B-Y - BR Starter Signal Cranking 5.5 or more
PSP (E4 - 29) - E1 (E4 - 7) Y - BR Power steering oil pressure sensor IG switch ON 8 to 14
SPD (E5 - 17) - E1 (E4 - 7) V-W - BR Speed signal from combination meter IG switch ON, rotate driving wheel slowly Pulse generation (See DTC P0500 VEHICLE SPEED SENSOR "A"  )
TACH (E6 - 5) - E1 (E4 - 7) B - BR Engine speed Idling Pulse Generation
VC (E3 - 18) - E2 (E3 - 28) R-W - BR Power Source Of Sensor (A Specific Voltage) IG Switch ON 4.5 to 5.5
PRG (E3 - 12) - E01 (E3 - 7) W-G - BR VSV for EVAP IG Switch ON 8 to 14
CCV (E5 - 1) - E1 (E4 - 7) L - BR VSV for CCV IG switch ON 9 to 14
PTNK (E6 - 21) - E2 (E3 - 28) B - BR Vapor Pressure Sensor Ignition Switch ON 2.9 to 3.7
Apply Vacuum 4.0 kPa (30 mmHG, 1.18 in.Hg) Below 0.5
VG (E4 - 24) - EVG (E4 - 32) P - V Mass Air Flow Sensor Idling, A/C Switch OFF 1.1 to 1.5
OXL1 (E4 - 23) - E2 (E3 - 28) W - BR Heated Oxygen Sensor (Bank1, Sensor1) Maintain Engine Speed At 2,500 RPM For 2 Min. After Warning Up Pulse generation (See DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) )
HTL (E4 - 4) - E03 (E4 - 5) B-R - BR Heated Oxygen Sensor Heater (Bank1, Sensor1) Idling Below 3.0
IG Switch ON 9 to 14
OXL2 (E4 - 21) - E2 (E3 - 28) B - BR Heated Oxygen Sensor (Bank1, Sensor2) Maintain Engine Speed At 2,500 RPM For 2 Min. After Warning Up Pulse generation (See DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) )
HTL2 (E5 - 4) - E03 (E4 - 5) W - BR Heated Oxygen Sensor Heater (Bank1, Sensor2) Idling Below 3.0
IG Switch ON 9 to 14
THW (E3 - 19) - E2 (E3 - 28) R-L - BR Engine Coolant Temperature Sensor Idling, Engine Coolant Temp. at 80°C (176°F) 0.2 to 1.0
G2 (E3 - 26) - NE- (E3 - 34) B - W Camshaft Position Sensor Idling Pulse generation (See DTC P0340 CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 1 OR SINGLE SENSOR), DTC P0341 CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE (BANK 1 OR SINGLE SENSOR) )
NE (E3 - 27) - NE- (E3 - 34) O - W Crankshaft Position Sensor Idling Pulse generation (See DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT, DTC P0339 CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT )
THA (E3 - 20) - E2 (E3 - 28) Y-B - BR Intake Air Temperature Sensor Idling, Intake Air Temp. at 20°C (68°F) 0.5 to 3.4
VTA (E3 - 21) - E2 (E3 - 28) Y-R - BR Throttle Position Sensor IG Switch ON, Throttle Valve Fully Closed 0.3 to 1.0
IG Switch ON, Throttle Valve Fully Open 3.2 to 4.9
#1 (E3 - 1) - E01 (E3 - 7) B-O - BR Injector IG Switch ON 8 to 14
#2 (E3 - 2) - E01 (E3 - 7) B-Y - BR
#3 (E3 - 3) - E01 (E3 - 7) B-W - BR
#4 (E3 - 4) - E01 (E3 - 7) B-L - BR
IGT1 (E3 - 8) - E1 (E4 - 7) G-R - BR Ignition Coil And Igniter (Ignition Signal) Idling Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY/SECONDARY CIRCUIT, DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT, DTC P0353 IGNITION COIL "C" PRIMARY/SECONDARY CIRCUIT, DTC P0354 IGNITION COIL "D" PRIMARY/SECONDARY CIRCUIT )
IGT2 (E3 - 9) - E1 (E4 - 7) G-B - BR
IGT3 (E3 - 10) - E1 (E4 - 7) G-O - BR
IGT4 (E3 - 11) - E1 (E4 - 7) G-Y - BR
IGF (E3 - 23) - E1 (E4 - 7) Y - BR Ignition Coil And Igniter (Ignition Confirmation Signal) IG Switch ON 4.5 to 5.5
Idling Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY/SECONDARY CIRCUIT, DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT, DTC P0353 IGNITION COIL "C" PRIMARY/SECONDARY CIRCUIT, DTC P0354 IGNITION COIL "D" PRIMARY/SECONDARY CIRCUIT )
RSD (E3 - 5) - E01 (E3 - 7) B-R - BR Idle Air Control Valve IG Switch ON 9 to 14
OCV+ (E3 - 15) - OCV- (E3 - 14) R-Y - R-B Camshaft Timing Oil Control Valve IG Switch ON Pulse generation (See CUSTOMER PROBLEM ANALYSIS CHECK 3)
KNKL (E4 - 1) - E1 (E4 - 7) W - BR Knock Sensor Idling Pulse generation (See DTC P0325 KNOCK SENSOR 1 CIRCUIT (BANK 1 OR SINGLE SENSOR) )
TC (E6 - 20) - E1 (E4 - 7) P-B - BR Terminal TC of DLC 3 IG Switch ON 9 to 14
SIL (E6 - 18) - E1 (E4 - 7) LG-B - BR Terminal SIL of DLC3 Connect Hand-Held Tester To DLC3 Pulse Generation