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Toyota Supra A80 1993-98 USDM (2JZ-GE, non-VVT) → DTAFast T4 (auto)

Toyota Supra A80 1993-98 USDM (2JZ-GE, non-VVT) — DTAFast — T4
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11

Before you start

Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.

Statusdraft · not yet verified: nobody has reported building and running this harness
Open errors4: read the Findings page before cutting any wire
Size of the job50 wires · 8 connectors · 2 part lines
ToolsCrimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
Terminals3-1447221-4
Order of work1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up.

Build checklist

Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.

WireFromToGaugeColourCutLabelCrimp ACrimp BPin APin BContinuity
W1OEM-E10-31SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-E10-32SP-14V-10.85☐☐☐☐☐☐☐
W3SP-14V-1T4-C1-310.85☐☐☐☐☐☐☐
W4OEM-E10-33T4-C3-260.85☐☐☐☐☐☐☐
W5OEM-E9-4SP-GND-10.85☐☐☐☐☐☐☐
W6OEM-E9-69SP-GND-10.85☐☐☐☐☐☐☐
W7OEM-E9-79SP-GND-10.85☐☐☐☐☐☐☐
W8OEM-E9-80SP-GND-10.85☐☐☐☐☐☐☐
W9SP-GND-1T4-C1-130.85☐☐☐☐☐☐☐
W10SP-GND-1T4-C1-140.85☐☐☐☐☐☐☐
W11OEM-E9-65SP-0V-10.5☐☐☐☐☐☐☐
W12OEM-E9-7SP-0V-10.5☐☐☐☐☐☐☐
W13SP-0V-1T4-C2-210.5☐☐☐☐☐☐☐
W14SP-0V-1T4-C2-330.5☐☐☐☐☐☐☐
W15OEM-E9-41T4-C2-240.5☐☐☐☐☐☐☐
W16OEM-E9-27T4-C2-120.5☐☐☐☐☐☐☐
W17OEM-E9-26T4-C2-220.5☐☐☐☐☐☐☐
W18OEM-E9-25T4-C2-20.5☐☐☐☐☐☐☐
W19OEM-E9-57T4-C1-100.5☐☐☐☐☐☐☐
W20OEM-E9-20T4-C1-90.5☐☐☐☐☐☐☐
W21OEM-E9-19T4-C1-170.5☐☐☐☐☐☐☐
W22OEM-E9-18T4-C1-340.5☐☐☐☐☐☐☐
W23OEM-E9-17T4-C1-250.5☐☐☐☐☐☐☐
W24OEM-E9-16T4-C1-90.5☐☐☐☐☐☐☐
W25OEM-E9-15T4-C1-170.5☐☐☐☐☐☐☐
W26OEM-E9-62T4-C2-100.5☐☐☐☐☐☐☐
W27OEM-E9-43T4-C2-10.5☐☐☐☐☐☐☐
W28OEM-E9-44T4-C2-70.5☐☐☐☐☐☐☐
W29OEM-E10-23T4-C1-50.5☐☐☐☐☐☐☐
W30OEM-E10-24T4-C1-40.5☐☐☐☐☐☐☐
W31OEM-E9-10T4-C1-30.5☐☐☐☐☐☐☐
W32OEM-E9-35T4-C3-220.5☐☐☐☐☐☐☐
W33OEM-E9-34T4-C3-230.5☐☐☐☐☐☐☐
W34OEM-E9-9T4-C3-240.5☐☐☐☐☐☐☐
W35OEM-E9-33T4-C3-250.5☐☐☐☐☐☐☐
W36OEM-E9-32T4-C3-100.5☐☐☐☐☐☐☐
W37OEM-E10-22T4-C3-90.5☐☐☐☐☐☐☐
W38OEM-E9-47T4-C2-50.5☐☐☐☐☐☐☐
W39OEM-E9-48T4-C2-60.5☐☐☐☐☐☐☐
W40OEM-E10-29T4-C2-250.5☐☐☐☐☐☐☐
W41OEM-E9-24T4-C2-170.5☐☐☐☐☐☐☐
W42OEM-E9-45T4-C2-190.5☐☐☐☐☐☐☐
W43OEM-E10-2T4-C2-40.5☐☐☐☐☐☐☐
W44OEM-E9-23T4-C2-140.5☐☐☐☐☐☐☐
W45OEM-E9-3T4-C2-150.5☐☐☐☐☐☐☐
W46OEM-E10-12T4-C3-170.5☐☐☐☐☐☐☐
W47OEM-E10-20T4-C3-180.5☐☐☐☐☐☐☐
W48OEM-E10-19T4-C2-340.5☐☐☐☐☐☐☐
W49OEM-E10-28T4-C2-30.5☐☐☐☐☐☐☐
W50OEM-E10-9T4-C2-160.5☐☐☐☐☐☐☐

Bench test (before first power-up)

Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).

#Probe AProbe BExpectWhyReading
1T4-C1-31T4-C1-13open (OL)+12 V supply must not touch power ground
2T4-C1-31T4-C2-21open (OL)+12 V supply must not touch sensor ground
3T4-C2-24T4-C2-21open (OL)5 V sensor reference must not touch sensor ground
4T4-C3-26T4-C1-13open (OL)+12 V supply must not touch power ground
5T4-C3-26T4-C2-21open (OL)+12 V supply must not touch sensor ground
6T4-C1-13T4-C2-24open (OL)power ground must not touch 5 V sensor reference
7T4-C1-31T4-C2-24open (OL)+12 V supply must not touch 5 V sensor reference
8T4-C3-26T4-C2-24open (OL)+12 V supply must not touch 5 V sensor reference

If any reading doesn't match, stop and get help before powering up.

Revisions

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Schematic

OEM-E10OEM-E9SP-0VSP-14VSP-GNDT4-C1T4-C2T4-C3

Connectors

OEM-E10

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Ignition switch (IGSW)————————
10A/T low-gear indicator (L)————————
12A/T overdrive disable 1 (OD1)—W46—0.5T4-C3-17———
15Electrical load sense (ELS)————————
17Diagnostic test terminal (TT)————————
18A/T manual mode select (M)————————
19Diagnostic test 2 (TE2)—W48—0.5T4-C2-34———
2No.1 speed sensor (SP1)—W43—0.5T4-C2-4———
20Diagnostic test 1 (TE1)—W47—0.5T4-C3-18———
21Fuel pump diagnostic (DI)————————
22Fuel pump control (FPC)—W37—0.5T4-C3-9———
23A/C clutch relay (ACMG)—W29—0.5T4-C1-5———
24EFI main relay control (M-REL)—W30—0.5T4-C1-4———
25A/T manual indicator (MI)————————
28A/T overdrive disable 2 (OD2)—W49—0.5T4-C2-3———
29Cat temperature sensor (CCO)—W40—0.5T4-C2-25———
3A/T kickdown switch (KD)————————
31EFI main relay power (+B)—W1—0.85SP-14V-1———
32EFI main relay power (+B1)—W2—0.85SP-14V-1———
33Battery constant (BATT)—W4—0.85T4-C3-26———
34A/C request (A/C)————————
35Power steering switch (PS)————————
4Stop light switch (STP)————————
5Cat-temp warning light (EGW)————————
6Check-engine light (W)————————
9A/T 2nd-gear indicator (2)—W50—0.5T4-C2-16———

OEM-E9

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
10A/T shift solenoid 1 (S1)—W31—0.5T4-C1-3———
15Injector 6 (#60, rear)—W25—0.5T4-C1-17———
16Injector 5 (#50)—W24—0.5T4-C1-9———
17Injector 4 (#40)—W23—0.5T4-C1-25———
18Injector 3 (#30)—W22—0.5T4-C1-34———
19Injector 2 (#20)—W21—0.5T4-C1-17———
20Injector 1 (#10, front)—W20—0.5T4-C1-9———
23No.2 speed sensor (SP2+)—W44—0.5T4-C2-14———
24A/T oil temperature (OIL)—W41—0.5T4-C2-17———
25Cam position 2 (G2)—W18—0.5T4-C2-2———
26Cam position 1 (G1)—W17—0.5T4-C2-22———
27Crank position (NE)—W16—0.5T4-C2-12———
28Voltage feedback 2 (VF2)————————
29Voltage feedback 1 (VF1)————————
3No.2 speed sensor return (SP2-)—W45—0.5T4-C2-15———
32ISC stepper coil 4 (ISC4)—W36—0.5T4-C3-10———
33ISC stepper coil 3 (ISC3)—W35—0.5T4-C3-25———
34ISC stepper coil 2 (ISC2)—W33—0.5T4-C3-23———
35ISC stepper coil 1 (ISC1)—W32—0.5T4-C3-22———
39ACIS intake VSV————————
4Power ground (E11)—W5—0.85SP-GND-1———
41Sensor supply +5V (VCC)—W15—0.5T4-C2-24———
43Throttle position (VTA1)—W27—0.5T4-C2-1———
44Coolant temperature (THW)—W28—0.5T4-C2-7———
45Intake air temperature (THA)—W42—0.5T4-C2-19———
47O2 sensor 2 (OX2, rear bank)—W38—0.5T4-C2-5———
48O2 sensor 1 (OX1, front bank)—W39—0.5T4-C2-6———
49Knock sensor 2 (KNK2, rear)————————
50Knock sensor 1 (KNK1, front)————————
57Igniter trigger (IGT)—W19—0.5T4-C1-10———
58Igniter verification (IGF)————————
62Manifold pressure (PIM)—W26—0.5T4-C2-10———
64TPS idle switch (IDL1)————————
65Sensor ground (E2)—W11—0.5SP-0V-1———
69Power ground (E1)—W6—0.85SP-GND-1———
7Distributor ground (G-)—W12—0.5SP-0V-1———
74EVAP purge VSV————————
76Neutral/park switch (NSW)————————
77Starter signal (STA)————————
79Power ground (E02)—W7—0.85SP-GND-1———
8A/T lock-up solenoid (S3)————————
80Power ground (E01)—W8—0.85SP-GND-1———
9A/T shift solenoid 2 (S2)—W34—0.5T4-C3-24———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W12—0.5OEM-E9-7———
1——W13—0.5T4-C2-21———
1——W14—0.5T4-C2-33———
1——W11—0.5OEM-E9-65———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-E10-31———
1——W2—0.85OEM-E10-32———
1——W3—0.85T4-C1-31———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W8—0.85OEM-E9-80———
1——W5—0.85OEM-E9-4———
1——W6—0.85OEM-E9-69———
1——W7—0.85OEM-E9-79———
1——W9—0.85T4-C1-13———
1——W10—0.85T4-C1-14———

T4-C1

Mating face
T4-C1-1 · Coil 31T4-C1-22T4-C1-3 · PWM 33T4-C1-4 · PWM 24T4-C1-5 · PWM 15T4-C1-66T4-C1-77T4-C1-88T4-C1-9 · Injector 19T4-C1-10 · Coil 110T4-C1-1111T4-C1-1212T4-C1-13 · Power Ground 113T4-C1-14 · Power Ground 214T4-C1-1515T4-C1-1616T4-C1-17 · Injector 217T4-C1-18 · Coil 218T4-C1-1919T4-C1-2020T4-C1-2121T4-C1-2222T4-C1-2323T4-C1-2424T4-C1-25 · Injector 425T4-C1-26 · Coil 426T4-C1-2727T4-C1-2828T4-C1-2929T4-C1-3030T4-C1-31 · Ignition 12v In31T4-C1-3232T4-C1-3333T4-C1-34 · Injector 334
Wire side
T4-C1-1 · Coil 31T4-C1-22T4-C1-3 · PWM 33T4-C1-4 · PWM 24T4-C1-5 · PWM 15T4-C1-66T4-C1-77T4-C1-88T4-C1-9 · Injector 19T4-C1-10 · Coil 110T4-C1-1111T4-C1-1212T4-C1-13 · Power Ground 113T4-C1-14 · Power Ground 214T4-C1-1515T4-C1-1616T4-C1-17 · Injector 217T4-C1-18 · Coil 218T4-C1-1919T4-C1-2020T4-C1-2121T4-C1-2222T4-C1-2323T4-C1-2424T4-C1-25 · Injector 425T4-C1-26 · Coil 426T4-C1-2727T4-C1-2828T4-C1-2929T4-C1-3030T4-C1-31 · Ignition 12v In31T4-C1-3232T4-C1-3333T4-C1-34 · Injector 334
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Coil 3————————
2—————————
3PWM 3—W31—0.5OEM-E9-10———
4PWM 2—W30—0.5OEM-E10-24———
5PWM 1—W29—0.5OEM-E10-23———
6—————————
7—————————
8—————————
9Injector 1—W20—0.5OEM-E9-20———
9Injector 1—W24—0.5OEM-E9-16———
10Coil 1—W19—0.5OEM-E9-57———
11—————————
12—————————
13Power Ground 1—W9—0.85SP-GND-1———
14Power Ground 2—W10—0.85SP-GND-1———
15—————————
16—————————
17Injector 2—W21—0.5OEM-E9-19———
17Injector 2—W25—0.5OEM-E9-15———
18Coil 2————————
19—————————
20—————————
21—————————
22—————————
23—————————
24—————————
25Injector 4—W23—0.5OEM-E9-17———
26Coil 4————————
27—————————
28—————————
29—————————
30—————————
31Ignition 12v In—W3—0.85SP-14V-1———
32—————————
33—————————
34Injector 3—W22—0.5OEM-E9-18———

T4-C2

Mating face
T4-C2-1 · Analogue 21T4-C2-2 · Wheel 12T4-C2-3 · Analogue 103T4-C2-4 · Digital 14T4-C2-5 · Analogue 35T4-C2-6 · Analogue 46T4-C2-7 · Thermistor 17T4-C2-88T4-C2-9 · 5v Output9T4-C2-10 · Analogue 110T4-C2-1111T4-C2-12 · Crank12T4-C2-1313T4-C2-14 · Digital 414T4-C2-15 · Digital 515T4-C2-16 · Analogue 1116T4-C2-17 · Thermistor 317T4-C2-1818T4-C2-19 · Analogue 619T4-C2-2020T4-C2-21 · Sensor Ground21T4-C2-22 · Cam 122T4-C2-2323T4-C2-24 · 5v Output24T4-C2-25 · Thermistor 225T4-C2-26 · CAN High26T4-C2-2727T4-C2-28 · CAN Low28T4-C2-2929T4-C2-3030T4-C2-3131T4-C2-3232T4-C2-33 · Sensor Ground33T4-C2-34 · Analogue 934
Wire side
T4-C2-1 · Analogue 21T4-C2-2 · Wheel 12T4-C2-3 · Analogue 103T4-C2-4 · Digital 14T4-C2-5 · Analogue 35T4-C2-6 · Analogue 46T4-C2-7 · Thermistor 17T4-C2-88T4-C2-9 · 5v Output9T4-C2-10 · Analogue 110T4-C2-1111T4-C2-12 · Crank12T4-C2-1313T4-C2-14 · Digital 414T4-C2-15 · Digital 515T4-C2-16 · Analogue 1116T4-C2-17 · Thermistor 317T4-C2-1818T4-C2-19 · Analogue 619T4-C2-2020T4-C2-21 · Sensor Ground21T4-C2-22 · Cam 122T4-C2-2323T4-C2-24 · 5v Output24T4-C2-25 · Thermistor 225T4-C2-26 · CAN High26T4-C2-2727T4-C2-28 · CAN Low28T4-C2-2929T4-C2-3030T4-C2-3131T4-C2-3232T4-C2-33 · Sensor Ground33T4-C2-34 · Analogue 934
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Analogue 2—W27—0.5OEM-E9-43———
2Wheel 1—W18—0.5OEM-E9-25———
3Analogue 10—W49—0.5OEM-E10-28———
4Digital 1—W43—0.5OEM-E10-2———
5Analogue 3—W38—0.5OEM-E9-47———
6Analogue 4—W39—0.5OEM-E9-48———
7Thermistor 1—W28—0.5OEM-E9-44———
8—————————
95v Output————————
10Analogue 1—W26—0.5OEM-E9-62———
11—————————
12Crank—W16—0.5OEM-E9-27———
13—————————
14Digital 4—W44—0.5OEM-E9-23———
15Digital 5—W45—0.5OEM-E9-3———
16Analogue 11—W50—0.5OEM-E10-9———
17Thermistor 3—W41—0.5OEM-E9-24———
18—————————
19Analogue 6—W42—0.5OEM-E9-45———
20—————————
21Sensor Ground—W13—0.5SP-0V-1———
22Cam 1—W17—0.5OEM-E9-26———
23—————————
245v Output—W15—0.5OEM-E9-41———
25Thermistor 2—W40—0.5OEM-E10-29———
26CAN High————————
27—————————
28CAN Low————————
29—————————
30—————————
31—————————
32—————————
33Sensor Ground—W14—0.5SP-0V-1———
34Analogue 9—W48—0.5OEM-E10-19———

T4-C3

Mating face
T4-C3-11T4-C3-22T4-C3-33T4-C3-44T4-C3-55T4-C3-66T4-C3-7 · Lambda 1 Pump Current7T4-C3-8 · Lambda 1 VGND8T4-C3-9 · Lambda 1 Heater Negative9T4-C3-10 · PWM 810T4-C3-11 · Lambda 1 Trim Resistor11T4-C3-12 · Lambda 1 Nernst Voltage12T4-C3-1313T4-C3-1414T4-C3-1515T4-C3-1616T4-C3-17 · Analogue 717T4-C3-18 · Analogue 818T4-C3-1919T4-C3-2020T4-C3-2121T4-C3-22 · PWM 422T4-C3-23 · PWM 523T4-C3-24 · PWM 624T4-C3-25 · PWM 725T4-C3-26 · Permanent 12v26T4-C3-27 · Permanent 12v27T4-C3-2828T4-C3-2929T4-C3-3030T4-C3-3131T4-C3-3232T4-C3-3333T4-C3-3434
Wire side
T4-C3-11T4-C3-22T4-C3-33T4-C3-44T4-C3-55T4-C3-66T4-C3-7 · Lambda 1 Pump Current7T4-C3-8 · Lambda 1 VGND8T4-C3-9 · Lambda 1 Heater Negative9T4-C3-10 · PWM 810T4-C3-11 · Lambda 1 Trim Resistor11T4-C3-12 · Lambda 1 Nernst Voltage12T4-C3-1313T4-C3-1414T4-C3-1515T4-C3-1616T4-C3-17 · Analogue 717T4-C3-18 · Analogue 818T4-C3-1919T4-C3-2020T4-C3-2121T4-C3-22 · PWM 422T4-C3-23 · PWM 523T4-C3-24 · PWM 624T4-C3-25 · PWM 725T4-C3-26 · Permanent 12v26T4-C3-27 · Permanent 12v27T4-C3-2828T4-C3-2929T4-C3-3030T4-C3-3131T4-C3-3232T4-C3-3333T4-C3-3434
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1—————————
2—————————
3—————————
4—————————
5—————————
6—————————
7Lambda 1 Pump Current————————
8Lambda 1 VGND————————
9Lambda 1 Heater Negative—W37—0.5OEM-E10-22———
10PWM 8—W36—0.5OEM-E9-32———
11Lambda 1 Trim Resistor————————
12Lambda 1 Nernst Voltage————————
13—————————
14—————————
15—————————
16—————————
17Analogue 7—W46—0.5OEM-E10-12———
18Analogue 8—W47—0.5OEM-E10-20———
19—————————
20—————————
21—————————
22PWM 4—W32—0.5OEM-E9-35———
23PWM 5—W33—0.5OEM-E9-34———
24PWM 6—W34—0.5OEM-E9-9———
25PWM 7—W35—0.5OEM-E9-33———
26Permanent 12v—W4—0.85OEM-E10-33———
27Permanent 12v————————
28—————————
29—————————
30—————————
31—————————
32—————————
33—————————
34—————————

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-E10-1Ignition switch (IGSW)digital_in———single_source
OEM-E10-10A/T low-gear indicator (L)digital_in———single_source
OEM-E10-12A/T overdrive disable 1 (OD1)digital_inT4-C3-17Analogue 7analog_insingle_source
OEM-E10-15Electrical load sense (ELS)digital_in———single_source
OEM-E10-17Diagnostic test terminal (TT)digital_in———single_source
OEM-E10-18A/T manual mode select (M)digital_in———single_source
OEM-E10-19Diagnostic test 2 (TE2)digital_inT4-C2-34Analogue 9analog_insingle_source
OEM-E10-2No.1 speed sensor (SP1)digital_inT4-C2-4Digital 1digital_insingle_source
OEM-E10-20Diagnostic test 1 (TE1)digital_inT4-C3-18Analogue 8analog_insingle_source
OEM-E10-21Fuel pump diagnostic (DI)digital_in———single_source
OEM-E10-22Fuel pump control (FPC)low_side_outT4-C3-9Lambda 1 Heater Negativelow_side_outsingle_source
OEM-E10-23A/C clutch relay (ACMG)low_side_outT4-C1-5PWM 1low_side_outsingle_source
OEM-E10-24EFI main relay control (M-REL)low_side_outT4-C1-4PWM 2low_side_outsingle_source
OEM-E10-25A/T manual indicator (MI)digital_in———single_source
OEM-E10-28A/T overdrive disable 2 (OD2)digital_inT4-C2-3Analogue 10analog_insingle_source
OEM-E10-29Cat temperature sensor (CCO)temp_inT4-C2-25Thermistor 2temp_insingle_source
OEM-E10-3A/T kickdown switch (KD)digital_in———single_source
OEM-E10-31EFI main relay power (+B)power_inT4-C1-31Ignition 12v Inpower_insingle_source
OEM-E10-32EFI main relay power (+B1)power_inT4-C1-31Ignition 12v Inpower_insingle_source
OEM-E10-33Battery constant (BATT)power_inT4-C3-26Permanent 12vpower_insingle_source
OEM-E10-34A/C request (A/C)digital_in———single_source
OEM-E10-35Power steering switch (PS)digital_in———single_source
OEM-E10-4Stop light switch (STP)digital_in———single_source
OEM-E10-5Cat-temp warning light (EGW)low_side_out———single_source
OEM-E10-6Check-engine light (W)low_side_out———single_source
OEM-E10-9A/T 2nd-gear indicator (2)digital_inT4-C2-16Analogue 11analog_insingle_source
OEM-E9-10A/T shift solenoid 1 (S1)low_side_outT4-C1-3PWM 3low_side_outsingle_source
OEM-E9-15Injector 6 (#60, rear)injector_outT4-C1-17Injector 2injector_outsingle_source
OEM-E9-16Injector 5 (#50)injector_outT4-C1-9Injector 1injector_outsingle_source
OEM-E9-17Injector 4 (#40)injector_outT4-C1-25Injector 4injector_outsingle_source
OEM-E9-18Injector 3 (#30)injector_outT4-C1-34Injector 3injector_outsingle_source
OEM-E9-19Injector 2 (#20)injector_outT4-C1-17Injector 2injector_outsingle_source
OEM-E9-20Injector 1 (#10, front)injector_outT4-C1-9Injector 1injector_outsingle_source
OEM-E9-23No.2 speed sensor (SP2+)digital_inT4-C2-14Digital 4digital_insingle_source
OEM-E9-24A/T oil temperature (OIL)temp_inT4-C2-17Thermistor 3temp_insingle_source
OEM-E9-25Cam position 2 (G2)trigger_inT4-C2-2Wheel 1digital_insingle_source
OEM-E9-26Cam position 1 (G1)trigger_inT4-C2-22Cam 1trigger_insingle_source
OEM-E9-27Crank position (NE)trigger_inT4-C2-12Cranktrigger_insingle_source
OEM-E9-28Voltage feedback 2 (VF2)analog_out———single_source
OEM-E9-29Voltage feedback 1 (VF1)analog_out———single_source
OEM-E9-3No.2 speed sensor return (SP2-)digital_inT4-C2-15Digital 5digital_insingle_source
OEM-E9-32ISC stepper coil 4 (ISC4)low_side_outT4-C3-10PWM 8low_side_outsingle_source
OEM-E9-33ISC stepper coil 3 (ISC3)low_side_outT4-C3-25PWM 7low_side_outsingle_source
OEM-E9-34ISC stepper coil 2 (ISC2)low_side_outT4-C3-23PWM 5low_side_outsingle_source
OEM-E9-35ISC stepper coil 1 (ISC1)low_side_outT4-C3-22PWM 4low_side_outsingle_source
OEM-E9-39ACIS intake VSVlow_side_out———single_source
OEM-E9-4Power ground (E11)groundT4-C1-13 + T4-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-E9-41Sensor supply +5V (VCC)vrefT4-C2-245v Outputvrefsingle_source
OEM-E9-43Throttle position (VTA1)analog_inT4-C2-1Analogue 2analog_insingle_source
OEM-E9-44Coolant temperature (THW)temp_inT4-C2-7Thermistor 1temp_insingle_source
OEM-E9-45Intake air temperature (THA)temp_inT4-C2-19Analogue 6analog_insingle_source
OEM-E9-47O2 sensor 2 (OX2, rear bank)lambda_nb_inT4-C2-5Analogue 3analog_insingle_source
OEM-E9-48O2 sensor 1 (OX1, front bank)lambda_nb_inT4-C2-6Analogue 4analog_insingle_source
OEM-E9-49Knock sensor 2 (KNK2, rear)knock_in———single_source
OEM-E9-50Knock sensor 1 (KNK1, front)knock_in———single_source
OEM-E9-57Igniter trigger (IGT)ignition_outT4-C1-10Coil 1ignition_outsingle_source
OEM-E9-58Igniter verification (IGF)digital_in———single_source
OEM-E9-62Manifold pressure (PIM)analog_inT4-C2-10Analogue 1analog_insingle_source
OEM-E9-64TPS idle switch (IDL1)digital_in———single_source
OEM-E9-65Sensor ground (E2)sensor_groundT4-C2-21 + T4-C2-33Sensor Ground + Sensor Groundsensor_groundsingle_source
OEM-E9-69Power ground (E1)groundT4-C1-13 + T4-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-E9-7Distributor ground (G-)sensor_groundT4-C2-21 + T4-C2-33Sensor Ground + Sensor Groundsensor_groundsingle_source
OEM-E9-74EVAP purge VSVlow_side_out———single_source
OEM-E9-76Neutral/park switch (NSW)digital_in———single_source
OEM-E9-77Starter signal (STA)digital_in———single_source
OEM-E9-79Power ground (E02)groundT4-C1-13 + T4-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-E9-8A/T lock-up solenoid (S3)low_side_out———single_source
OEM-E9-80Power ground (E01)groundT4-C1-13 + T4-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-E9-9A/T shift solenoid 2 (S2)low_side_outT4-C3-24PWM 6low_side_outsingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-E10-31SP-14V-10.85no routeEFI main relay power (+B)—
W2OEM-E10-32SP-14V-10.85no routeEFI main relay power (+B1)—
W3SP-14V-1T4-C1-310.85no routeIgnition 12v In—
W4OEM-E10-33T4-C3-260.85no routeBattery constant (BATT)—
W5OEM-E9-4SP-GND-10.85no routePower ground (E11)—
W6OEM-E9-69SP-GND-10.85no routePower ground (E1)—
W7OEM-E9-79SP-GND-10.85no routePower ground (E02)—
W8OEM-E9-80SP-GND-10.85no routePower ground (E01)—
W9SP-GND-1T4-C1-130.85no routePower Ground 1—
W10SP-GND-1T4-C1-140.85no routePower Ground 2—
W11OEM-E9-65SP-0V-10.5no routeSensor ground (E2)—
W12OEM-E9-7SP-0V-10.5no routeDistributor ground (G-)—
W13SP-0V-1T4-C2-210.5no routeSensor Ground—
W14SP-0V-1T4-C2-330.5no routeSensor Ground—
W15OEM-E9-41T4-C2-240.5no routeSensor supply +5V (VCC)—
W16OEM-E9-27T4-C2-120.5no routeCrank position (NE)—
W17OEM-E9-26T4-C2-220.5no routeCam position 1 (G1)—
W18OEM-E9-25T4-C2-20.5no routeCam position 2 (G2)—
W19OEM-E9-57T4-C1-100.5no routeIgniter trigger (IGT)—
W20OEM-E9-20T4-C1-90.5no routeInjector 1 (#10, front)—
W21OEM-E9-19T4-C1-170.5no routeInjector 2 (#20)—
W22OEM-E9-18T4-C1-340.5no routeInjector 3 (#30)—
W23OEM-E9-17T4-C1-250.5no routeInjector 4 (#40)—
W24OEM-E9-16T4-C1-90.5no routeInjector 5 (#50)—
W25OEM-E9-15T4-C1-170.5no routeInjector 6 (#60, rear)—
W26OEM-E9-62T4-C2-100.5no routeManifold pressure (PIM)—
W27OEM-E9-43T4-C2-10.5no routeThrottle position (VTA1)—
W28OEM-E9-44T4-C2-70.5no routeCoolant temperature (THW)—
W29OEM-E10-23T4-C1-50.5no routeA/C clutch relay (ACMG)—
W30OEM-E10-24T4-C1-40.5no routeEFI main relay control (M-REL)—
W31OEM-E9-10T4-C1-30.5no routeA/T shift solenoid 1 (S1)—
W32OEM-E9-35T4-C3-220.5no routeISC stepper coil 1 (ISC1)—
W33OEM-E9-34T4-C3-230.5no routeISC stepper coil 2 (ISC2)—
W34OEM-E9-9T4-C3-240.5no routeA/T shift solenoid 2 (S2)—
W35OEM-E9-33T4-C3-250.5no routeISC stepper coil 3 (ISC3)—
W36OEM-E9-32T4-C3-100.5no routeISC stepper coil 4 (ISC4)—
W37OEM-E10-22T4-C3-90.5no routeFuel pump control (FPC)—
W38OEM-E9-47T4-C2-50.5no routeO2 sensor 2 (OX2, rear bank)—
W39OEM-E9-48T4-C2-60.5no routeO2 sensor 1 (OX1, front bank)—
W40OEM-E10-29T4-C2-250.5no routeCat temperature sensor (CCO)—
W41OEM-E9-24T4-C2-170.5no routeA/T oil temperature (OIL)—
W42OEM-E9-45T4-C2-190.5no routeIntake air temperature (THA)—
W43OEM-E10-2T4-C2-40.5no routeNo.1 speed sensor (SP1)—
W44OEM-E9-23T4-C2-140.5no routeNo.2 speed sensor (SP2+)—
W45OEM-E9-3T4-C2-150.5no routeNo.2 speed sensor return (SP2-)—
W46OEM-E10-12T4-C3-170.5no routeA/T overdrive disable 1 (OD1)—
W47OEM-E10-20T4-C3-180.5no routeDiagnostic test 1 (TE1)—
W48OEM-E10-19T4-C2-340.5no routeDiagnostic test 2 (TE2)—
W49OEM-E10-28T4-C2-30.5no routeA/T overdrive disable 2 (OD2)—
W50OEM-E10-9T4-C2-160.5no routeA/T 2nd-gear indicator (2)—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit
connector4-1437290-0TESuperseal 1.0 34-way plug, Key 13.000ea
terminal3-1447221-4TESuperseal 1.0 socket terminal, 20 AWG (0.5 sq mm)40.000ea

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (15)

SeverityCodeSubjectMessage
errorNET_MERGEDOEM-E9-15 + OEM-E9-19 + T4-C1-172 different OEM functions share one net: OEM-E9-15 Injector 6 (#60, rear); OEM-E9-19 Injector 2 (#20)
errorNET_MERGEDOEM-E9-16 + OEM-E9-20 + T4-C1-92 different OEM functions share one net: OEM-E9-16 Injector 5 (#50); OEM-E9-20 Injector 1 (#10, front)
errorPHYS_REQUIRED_OPENT4-C3-27T4-C3-27 "Permanent 12v" is required but not wired.
errorREQUIRED_UNMAPPEDOEM-E10-1Required OEM function "Ignition switch (IGSW)" (digital_in) is not connected to the new ECU.
warnDATASET_GAPT4 C120 of 34 cavities on T4 C1 have no pin data (2,6,7,8,11,12,15,16,19,20,21,22,23,24,27,28,29,30,32,33). Anything there is invisible to these checks.
warnDATASET_GAPT4 C211 of 34 cavities on T4 C2 have no pin data (8,11,13,18,20,23,27,29,30,31,32). Anything there is invisible to these checks.
warnDATASET_GAPT4 C320 of 34 cavities on T4 C3 have no pin data (1,2,3,4,5,6,13,14,15,16,19,20,21,28,29,30,31,32,33,34). Anything there is invisible to these checks.
warnNET_FAMILYOEM-E10-12 ↔ T4-C3-17OEM-E10-12 "A/T overdrive disable 1 (OD1)" [digital_in] is wired to T4-C3-17 "Analogue 7" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-E10-19 ↔ T4-C2-34OEM-E10-19 "Diagnostic test 2 (TE2)" [digital_in] is wired to T4-C2-34 "Analogue 9" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-E10-20 ↔ T4-C3-18OEM-E10-20 "Diagnostic test 1 (TE1)" [digital_in] is wired to T4-C3-18 "Analogue 8" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-E10-28 ↔ T4-C2-3OEM-E10-28 "A/T overdrive disable 2 (OD2)" [digital_in] is wired to T4-C2-3 "Analogue 10" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-E10-9 ↔ T4-C2-16OEM-E10-9 "A/T 2nd-gear indicator (2)" [digital_in] is wired to T4-C2-16 "Analogue 11" [analog_in]. Analog and digital on one net. A switch on an analog input works with a pull-up and a threshold; an analog sensor on a digital input loses its value.
warnNET_FAMILYOEM-E9-25 ↔ T4-C2-2OEM-E9-25 "Cam position 2 (G2)" [trigger_in] is wired to T4-C2-2 "Wheel 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
infoNET_FAMILYOEM-E9-45 ↔ T4-C2-19OEM-E9-45 "Intake air temperature (THA)" [temp_in] is wired to T4-C2-19 "Analogue 6" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one.
infoUNMAPPEDOEM23 optional OEM pins are not mapped: OEM-E10-10 A/T low-gear indicator (L); OEM-E10-15 Electrical load sense (ELS); OEM-E10-17 Diagnostic test terminal (TT); OEM-E10-18 A/T manual mode select (M); OEM-E10-21 Fuel pump diagnostic (DI); OEM-E10-25 A/T manual indicator (MI); OEM-E10-3 A/T kickdown switch (KD); OEM-E10-34 A/C request (A/C); OEM-E10-35 Power steering switch (PS); OEM-E10-4 Stop light switch (STP); OEM-E10-5 Cat-temp warning light (EGW); OEM-E10-6 Check-engine light (W); OEM-E9-28 Voltage feedback 2 (VF2); OEM-E9-29 Voltage feedback 1 (VF1); OEM-E9-39 ACIS intake VSV; OEM-E9-49 Knock sensor 2 (KNK2, rear); OEM-E9-50 Knock sensor 1 (KNK1, front); OEM-E9-58 Igniter verification (IGF); OEM-E9-64 TPS idle switch (IDL1); OEM-E9-74 EVAP purge VSV; OEM-E9-76 Neutral/park switch (NSW); OEM-E9-77 Starter signal (STA); OEM-E9-8 A/T lock-up solenoid (S3)

Accepted (0)

CodeSubjectReasonBy

Notes

Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-E10 1: Ignition switch (IGSW): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); DTAFast T4 has no dedicated key-on input - T4-C3 27: Permanent 12v: required by DTAFast T4 but no stock pin feeds it; wire by hand Not wired: - OEM-E9 50: Knock sensor 1 (KNK1, front): no free knock input on DTAFast T4 - OEM-E9 49: Knock sensor 2 (KNK2, rear): no free knock input on DTAFast T4 - OEM-E10 5: Cat-temp warning light (EGW): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E10 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E9 39: ACIS intake VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E9 74: EVAP purge VSV: no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E9 8: A/T lock-up solenoid (S3): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T4 - OEM-E10 21: Fuel pump diagnostic (DI): no free frequency_in/switch_in on DTAFast T4 - OEM-E9 58: Igniter verification (IGF): no free frequency_in/switch_in on DTAFast T4 - OEM-E10 10: A/T low-gear indicator (L): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 15: Electrical load sense (ELS): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 17: Diagnostic test terminal (TT): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 18: A/T manual mode select (M): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 25: A/T manual indicator (MI): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 3: A/T kickdown switch (KD): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 34: A/C request (A/C): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 35: Power steering switch (PS): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E10 4: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E9 64: TPS idle switch (IDL1): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E9 76: Neutral/park switch (NSW): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E9 77: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on DTAFast T4 - OEM-E9 29: Voltage feedback 1 (VF1): no free analog_out on DTAFast T4 - OEM-E9 28: Voltage feedback 2 (VF2): no free analog_out on DTAFast T4

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docDTAFast T4 ECU wiring diagramhttps://cdn.shopify.com/s/files/1/0848/7508/4108/files/T4_Wiring_Diagram.pdf?v=1789413067———
3community_copywilbo666: 2JZ-GE JZA80 Supra Engine Wiring (ECU pinout, E10/E9)http://wilbo666.pbworks.com/w/page/41678224/2JZ-GE%20JZA80%20Supra%20Engine%20Wiring———