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Toyota Supra A80 1997-2002 JDM (2JZ-GTE VVT-i, single-turbo) → DTAFast T12 (auto)

Toyota Supra A80 1997-2002 JDM (2JZ-GTE VVT-i, single-turbo) — DTAFast — T12
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-12

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 errors5: read the Findings page before cutting any wire
Size of the job83 wires · 12 connectors · 2 part lines
ToolsCrimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
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-B78-16SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-B78-7SP-14V-10.85☐☐☐☐☐☐☐
W3OEM-B78-8SP-14V-10.85☐☐☐☐☐☐☐
W4SP-14V-1T12-C1-310.85☐☐☐☐☐☐☐
W5OEM-B78-1T12-C3-260.85☐☐☐☐☐☐☐
W6OEM-B74-21SP-GND-10.85☐☐☐☐☐☐☐
W7OEM-B74-31SP-GND-10.85☐☐☐☐☐☐☐
W8OEM-B74-9SP-GND-10.85☐☐☐☐☐☐☐
W9OEM-B75-17SP-GND-10.85☐☐☐☐☐☐☐
W10SP-GND-1T12-C1-130.85☐☐☐☐☐☐☐
W11SP-GND-1T12-C1-140.85☐☐☐☐☐☐☐
W12OEM-B74-22SP-0V-10.5☐☐☐☐☐☐☐
W13OEM-B75-18SP-0V-10.5☐☐☐☐☐☐☐
W14OEM-B75-19SP-0V-10.5☐☐☐☐☐☐☐
W15OEM-B78-22SP-0V-10.5☐☐☐☐☐☐☐
W16SP-0V-1T12-C2-210.5☐☐☐☐☐☐☐
W17SP-0V-1T12-C2-330.5☐☐☐☐☐☐☐
W18OEM-B75-2T12-C2-240.5☐☐☐☐☐☐☐
W19OEM-B74-23T12-C2-120.5☐☐☐☐☐☐☐
W20OEM-B74-10T12-C2-220.5☐☐☐☐☐☐☐
W21OEM-B74-28T12-C3-310.5☐☐☐☐☐☐☐
W22OEM-B74-27T12-C3-320.5☐☐☐☐☐☐☐
W23OEM-B74-11T12-C1-100.5☐☐☐☐☐☐☐
W24OEM-B74-12T12-C1-180.5☐☐☐☐☐☐☐
W25OEM-B74-13T12-C1-10.5☐☐☐☐☐☐☐
W26OEM-B75-5T12-C1-90.5☐☐☐☐☐☐☐
W27OEM-B75-6T12-C1-170.5☐☐☐☐☐☐☐
W28OEM-B74-1T12-C1-340.5☐☐☐☐☐☐☐
W29OEM-B74-2T12-C1-250.5☐☐☐☐☐☐☐
W30OEM-B74-3T12-C1-160.5☐☐☐☐☐☐☐
W31OEM-B74-4T12-C1-150.5☐☐☐☐☐☐☐
W32OEM-B74-17T12-C1-50.5☐☐☐☐☐☐☐
W33OEM-B74-18T12-C1-40.5☐☐☐☐☐☐☐
W34OEM-B74-19T12-C1-30.5☐☐☐☐☐☐☐
W35OEM-B74-20T12-C3-220.5☐☐☐☐☐☐☐
W36OEM-B75-9T12-C2-100.5☐☐☐☐☐☐☐
W37OEM-B75-15T12-C2-10.5☐☐☐☐☐☐☐
W38OEM-B75-23T12-C2-50.5☐☐☐☐☐☐☐
W39OEM-B75-16T12-C2-60.5☐☐☐☐☐☐☐
W40OEM-B75-24T12-C2-180.5☐☐☐☐☐☐☐
W41OEM-B75-14T12-C2-70.5☐☐☐☐☐☐☐
W42OEM-B77-13T12-C3-230.5☐☐☐☐☐☐☐
W43OEM-B78-10T12-C3-240.5☐☐☐☐☐☐☐
W44OEM-B75-4T12-C3-90.5☐☐☐☐☐☐☐
W45OEM-B76-1T12-C3-250.5☐☐☐☐☐☐☐
W46OEM-B76-2T12-C3-100.5☐☐☐☐☐☐☐
W47OEM-B76-3T12-C3-40.5☐☐☐☐☐☐☐
W48OEM-B76-6T12-C3-280.5☐☐☐☐☐☐☐
W49OEM-B74-15T12-C3-290.5☐☐☐☐☐☐☐
W50OEM-B74-5T12-C3-300.5☐☐☐☐☐☐☐
W51OEM-B75-3T12-C3-30.5☐☐☐☐☐☐☐
W52OEM-B75-7T12-C1-240.5☐☐☐☐☐☐☐
W53OEM-B76-12T12-C1-230.5☐☐☐☐☐☐☐
W54OEM-B76-13T12-C1-210.5☐☐☐☐☐☐☐
W55OEM-B76-14T12-C1-220.5☐☐☐☐☐☐☐
W56OEM-B76-15T12-C1-80.5☐☐☐☐☐☐☐
W57OEM-B76-16T12-C1-320.5☐☐☐☐☐☐☐
W58OEM-B75-10T12-C2-190.5☐☐☐☐☐☐☐
W59OEM-B75-12T12-C3-170.5☐☐☐☐☐☐☐
W60OEM-B75-22T12-C2-250.5☐☐☐☐☐☐☐
W61OEM-B76-17T12-C2-170.5☐☐☐☐☐☐☐
W62OEM-B77-25T12-C2-20.5☐☐☐☐☐☐☐
W63OEM-B76-11T12-C2-200.5☐☐☐☐☐☐☐
W64OEM-B76-5T12-C2-310.5☐☐☐☐☐☐☐
W65OEM-B74-25T12-C2-320.5☐☐☐☐☐☐☐
W66OEM-B76-10T12-C2-40.5☐☐☐☐☐☐☐
W67OEM-B76-4T12-C2-80.5☐☐☐☐☐☐☐
W68OEM-B77-18T12-C2-110.5☐☐☐☐☐☐☐
W69OEM-B77-19T12-C2-140.5☐☐☐☐☐☐☐
W70OEM-B77-27T12-C2-150.5☐☐☐☐☐☐☐
W71OEM-B78-4T12-C2-270.5☐☐☐☐☐☐☐
W72OEM-B79-7T12-C3-190.5☐☐☐☐☐☐☐
W73OEM-B79-8T12-C3-200.5☐☐☐☐☐☐☐
W74OEM-B75-21T12-C3-210.5☐☐☐☐☐☐☐
W75OEM-B75-20T12-C3-180.5☐☐☐☐☐☐☐
W76OEM-B74-24T12-C2-340.5☐☐☐☐☐☐☐
W77OEM-B75-8T12-C2-30.5☐☐☐☐☐☐☐
W78OEM-B77-1T12-C2-160.5☐☐☐☐☐☐☐
W79OEM-B77-14T12-C2-130.5☐☐☐☐☐☐☐
W80OEM-B77-16T12-C3-130.5☐☐☐☐☐☐☐
W81OEM-B77-2T12-C3-140.5☐☐☐☐☐☐☐
W82OEM-B77-21T12-C3-150.5☐☐☐☐☐☐☐
W83OEM-B77-26T12-C3-160.5☐☐☐☐☐☐☐

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
1T12-C1-13T12-C1-31open (OL)power ground must not touch +12 V supply
2T12-C1-13T12-C2-24open (OL)power ground must not touch 5 V sensor reference
3T12-C1-13T12-C3-26open (OL)power ground must not touch +12 V supply
4T12-C2-21T12-C1-31open (OL)sensor ground must not touch +12 V supply
5T12-C2-21T12-C2-24open (OL)sensor ground must not touch 5 V sensor reference
6T12-C2-21T12-C3-26open (OL)sensor ground must not touch +12 V supply
7T12-C2-24T12-C1-31open (OL)5 V sensor reference must not touch +12 V supply
8T12-C2-24T12-C3-26open (OL)5 V sensor reference must not touch +12 V supply

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

Revisions

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Schematic

OEM-B74OEM-B75OEM-B76OEM-B77OEM-B78OEM-B79SP-0VSP-14VSP-GNDT12-C1T12-C2T12-C3

Connectors

OEM-B74

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Injector 3 (#30)—W28—0.5T12-C1-34———
10Cam position (G2)—W20—0.5T12-C2-22———
11Ignition 1 (IGT, cyl 1&6)—W23—0.5T12-C1-10———
12Ignition 2 (IGT2, cyl 5&2)—W24—0.5T12-C1-18———
13Ignition 3 (IGT3, cyl 3&4)—W25—0.5T12-C1-1———
15Wastegate VSV (PMC)—W49—0.5T12-C3-29———
17VVT-i OCV - (OCV-)—W32—0.5T12-C1-5———
18VVT-i OCV + (OCV+)—W33—0.5T12-C1-4———
19ETCS-i clutch - (CL-)—W34—0.5T12-C1-3———
2Injector 4 (#40)—W29—0.5T12-C1-25———
20ETCS-i clutch + (CL+)—W35—0.5T12-C3-22———
21Power ground (E01)—W6—0.85SP-GND-1———
22Crank/cam sensor return (NE-)—W12—0.5SP-0V-1———
23Crank position (NE+)—W19—0.5T12-C2-12———
24Neutral/park switch (NSW)—W76—0.5T12-C2-34———
25Igniter verification (IGF)—W65—0.5T12-C2-32———
27Knock sensor 2 (KNK2, rear)—W22—0.5T12-C3-32———
28Knock sensor 1 (KNK1, front)—W21—0.5T12-C3-31———
3Injector 5 (#50)—W30—0.5T12-C1-16———
30ETCS-i motor shield (GEO1)————————
31Power ground (E02)—W7—0.85SP-GND-1———
4Injector 6 (#60)—W31—0.5T12-C1-15———
5Intake air bypass VSV (VSV1)—W50—0.5T12-C3-30———
7ETCS-i motor - (M-)————————
8ETCS-i motor + (M+)————————
9ETCS-i ground (ME01)—W8—0.85SP-GND-1———

OEM-B75

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
10Mass air flow (VG)—W58—0.5T12-C2-19———
12O2 sensor (OX)—W59—0.5T12-C3-17———
14Coolant temperature (THW)—W41—0.5T12-C2-7———
15Accelerator pedal 1 (VPA)—W37—0.5T12-C2-1———
16Accelerator pedal 2 (VPA2)—W39—0.5T12-C2-6———
17Power ground (E1)—W9—0.85SP-GND-1———
18Sensor ground (E2)—W13—0.5SP-0V-1———
19MAF ground (EVG)—W14—0.5SP-0V-1———
2Sensor power (VC)—W18—0.5T12-C2-24———
20A/T 2nd-gear indicator (2)—W75—0.5T12-C3-18———
21A/T 1st-gear indicator (L)—W74—0.5T12-C3-21———
22Intake air temperature (THA)—W60—0.5T12-C2-25———
23Throttle position 1 (VTA)—W38—0.5T12-C2-5———
24Throttle position 2 (VTA2)—W40—0.5T12-C2-18———
3Exhaust gas control VSV (VSV2)—W51—0.5T12-C3-3———
4O2 sensor heater (HT)—W44—0.5T12-C3-9———
5Injector 1 (#10)—W26—0.5T12-C1-9———
6Injector 2 (#20)—W27—0.5T12-C1-17———
7EVAP purge VSV (PRG)—W52—0.5T12-C1-24———
8Main oil pressure switch (MOPS)—W77—0.5T12-C2-3———
9Manifold pressure (PIM)—W36—0.5T12-C2-10———

OEM-B76

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1A/T shift solenoid 1 (S1)—W45—0.5T12-C3-25———
10OD direct-clutch speed (NCO-)—W66—0.5T12-C2-4———
11No.2 speed sensor return (SP2-)—W63—0.5T12-C2-20———
12Exhaust bypass VSV (VSV3)—W53—0.5T12-C1-23———
13A/T lock-up solenoid - (SLU-)—W54—0.5T12-C1-21———
14A/T accumulator solenoid - (SLN-)—W55—0.5T12-C1-22———
15A/T line-pressure solenoid - (SLT-)—W56—0.5T12-C1-8———
16Fuel pressure-up VSV (FPU)—W57—0.5T12-C1-32———
17A/T oil temperature (OIL)—W61—0.5T12-C2-17———
2A/T shift solenoid 2 (S2)—W46—0.5T12-C3-10———
3A/T shift solenoid 3 (S3)—W47—0.5T12-C3-4———
4OD direct-clutch speed (NCO+)—W67—0.5T12-C2-8———
5No.2 speed sensor (SP2+)—W64—0.5T12-C2-31———
6A/T shift solenoid 4 (S4)—W48—0.5T12-C3-28———
7A/T lock-up solenoid + (SLU+)————————
8A/T accumulator solenoid + (SLN+)————————
9A/T line-pressure solenoid + (SLT+)————————

OEM-B77

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1A/C request (AC)—W78—0.5T12-C2-16———
13A/C clutch relay (ACMG)—W42—0.5T12-C3-23———
14A/T shift down (SFTD)—W79—0.5T12-C2-13———
16A/T reverse indicator (R)—W80—0.5T12-C3-13———
18Rear right wheel speed (RRO)—W68—0.5T12-C2-11———
19Rear left wheel speed (RLO)—W69—0.5T12-C2-14———
2Starter signal (STA)—W81—0.5T12-C3-14———
20Tachometer output (TACH)————————
21ABS active (ABS)—W82—0.5T12-C3-15———
25No.1 speed sensor (SPD)—W62—0.5T12-C2-2———
26Electrical load sense (ELS)—W83—0.5T12-C3-16———
27Road speed (RSPD)—W70—0.5T12-C2-15———
4A/T shift up (SFTU)————————
5Diagnostic/timing check (TC)————————
6Stop light switch (STP)————————
7A/T manual position (3)————————

OEM-B78

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Battery constant (BATT)—W5—0.85T12-C3-26———
10EFI main relay control (M-REL)—W43—0.5T12-C3-24———
11Serial diagnostic (SIL)————————
16EFI main relay power (+B)—W1—0.85SP-14V-1———
2TRAC snow-mode light (SNOW)————————
22Switch ground (EC)—W15—0.5SP-0V-1———
3TRAC snow-mode switch (SNWI)————————
4Fuel pump diagnostic (DI)—W71—0.5T12-C2-27———
5Fuel pump control (FPC)————————
6Check-engine light (W)————————
7ETCS-i power (+BM)—W2—0.85SP-14V-1———
8EFI main relay power (+B2)—W3—0.85SP-14V-1———
9Ignition switch (IGSW)————————

OEM-B79

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1TRAC enable light (IND)————————
14TRAC active light (CIND)————————
17A/T meter LCD (LPO3)————————
18A/T meter LCD (SPTL)————————
19Reverse buzzer (BZ)————————
2TRAC off switch (MSW)————————
3A/T meter LCD (LPO1)————————
4A/T meter LCD (LPO2)————————
7Front right wheel speed (FRO)—W72—0.5T12-C3-19———
8Front left wheel speed (FLO)—W73—0.5T12-C3-20———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W12—0.5OEM-B74-22———
1——W13—0.5OEM-B75-18———
1——W14—0.5OEM-B75-19———
1——W15—0.5OEM-B78-22———
1——W16—0.5T12-C2-21———
1——W17—0.5T12-C2-33———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W2—0.85OEM-B78-7———
1——W1—0.85OEM-B78-16———
1——W3—0.85OEM-B78-8———
1——W4—0.85T12-C1-31———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W6—0.85OEM-B74-21———
1——W7—0.85OEM-B74-31———
1——W8—0.85OEM-B74-9———
1——W9—0.85OEM-B75-17———
1——W10—0.85T12-C1-13———
1——W11—0.85T12-C1-14———

T12-C1

Mating face
T12-C1-1 · Coil 31T12-C1-2 · Coil 112T12-C1-3 · PWM 33T12-C1-4 · PWM 24T12-C1-5 · PWM 15T12-C1-6 · Motor 1 +6T12-C1-7 · Motor 1 -7T12-C1-8 · Injector 118T12-C1-9 · Injector 19T12-C1-10 · Coil 110T12-C1-11 · Coil 511T12-C1-12 · Coil 712T12-C1-13 · Power Ground 113T12-C1-14 · Power Ground 214T12-C1-15 · Injector 615T12-C1-16 · Injector 516T12-C1-17 · Injector 217T12-C1-18 · Coil 218T12-C1-19 · Coil 819T12-C1-20 · Coil 920T12-C1-21 · Injector 921T12-C1-22 · Injector 1022T12-C1-23 · Injector 823T12-C1-24 · Injector 724T12-C1-25 · Injector 425T12-C1-26 · Coil 426T12-C1-27 · Coil 627T12-C1-28 · Coil 1028T12-C1-29 · Motor 2 +29T12-C1-30 · Motor 2 -30T12-C1-31 · Ignition 12v In31T12-C1-32 · Injector 1232T12-C1-33 · Coil 1233T12-C1-34 · Injector 334
Wire side
T12-C1-1 · Coil 31T12-C1-2 · Coil 112T12-C1-3 · PWM 33T12-C1-4 · PWM 24T12-C1-5 · PWM 15T12-C1-6 · Motor 1 +6T12-C1-7 · Motor 1 -7T12-C1-8 · Injector 118T12-C1-9 · Injector 19T12-C1-10 · Coil 110T12-C1-11 · Coil 511T12-C1-12 · Coil 712T12-C1-13 · Power Ground 113T12-C1-14 · Power Ground 214T12-C1-15 · Injector 615T12-C1-16 · Injector 516T12-C1-17 · Injector 217T12-C1-18 · Coil 218T12-C1-19 · Coil 819T12-C1-20 · Coil 920T12-C1-21 · Injector 921T12-C1-22 · Injector 1022T12-C1-23 · Injector 823T12-C1-24 · Injector 724T12-C1-25 · Injector 425T12-C1-26 · Coil 426T12-C1-27 · Coil 627T12-C1-28 · Coil 1028T12-C1-29 · Motor 2 +29T12-C1-30 · Motor 2 -30T12-C1-31 · Ignition 12v In31T12-C1-32 · Injector 1232T12-C1-33 · Coil 1233T12-C1-34 · Injector 334
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Coil 3—W25—0.5OEM-B74-13———
2Coil 11————————
3PWM 3—W34—0.5OEM-B74-19———
4PWM 2—W33—0.5OEM-B74-18———
5PWM 1—W32—0.5OEM-B74-17———
6Motor 1 +————————
7Motor 1 -————————
8Injector 11—W56—0.5OEM-B76-15———
9Injector 1—W26—0.5OEM-B75-5———
10Coil 1—W23—0.5OEM-B74-11———
11Coil 5————————
12Coil 7————————
13Power Ground 1—W10—0.85SP-GND-1———
14Power Ground 2—W11—0.85SP-GND-1———
15Injector 6—W31—0.5OEM-B74-4———
16Injector 5—W30—0.5OEM-B74-3———
17Injector 2—W27—0.5OEM-B75-6———
18Coil 2—W24—0.5OEM-B74-12———
19Coil 8————————
20Coil 9————————
21Injector 9—W54—0.5OEM-B76-13———
22Injector 10—W55—0.5OEM-B76-14———
23Injector 8—W53—0.5OEM-B76-12———
24Injector 7—W52—0.5OEM-B75-7———
25Injector 4—W29—0.5OEM-B74-2———
26Coil 4————————
27Coil 6————————
28Coil 10————————
29Motor 2 +————————
30Motor 2 -————————
31Ignition 12v In—W4—0.85SP-14V-1———
32Injector 12—W57—0.5OEM-B76-16———
33Coil 12————————
34Injector 3—W28—0.5OEM-B74-1———

T12-C2

Mating face
T12-C2-1 · Analogue 21T12-C2-2 · Wheel 12T12-C2-3 · Analogue 103T12-C2-4 · Digital 14T12-C2-5 · Analogue 35T12-C2-6 · Analogue 46T12-C2-7 · Thermistor 17T12-C2-8 · Digital 28T12-C2-9 · 5v Output9T12-C2-10 · Analogue 110T12-C2-11 · Digital 311T12-C2-12 · Crank12T12-C2-13 · Analogue 1213T12-C2-14 · Digital 414T12-C2-15 · Digital 515T12-C2-16 · Analogue 1116T12-C2-17 · Thermistor 317T12-C2-18 · Analogue 518T12-C2-19 · Analogue 619T12-C2-20 · Wheel 220T12-C2-21 · Sensor Ground21T12-C2-22 · Cam 122T12-C2-23 · Cam 323T12-C2-24 · 5v Output24T12-C2-25 · Thermistor 225T12-C2-26 · CAN High26T12-C2-27 · Digital 627T12-C2-28 · CAN Low28T12-C2-29 · Cam 229T12-C2-30 · Cam 430T12-C2-31 · Wheel 331T12-C2-32 · Wheel 432T12-C2-33 · Sensor Ground33T12-C2-34 · Analogue 934
Wire side
T12-C2-1 · Analogue 21T12-C2-2 · Wheel 12T12-C2-3 · Analogue 103T12-C2-4 · Digital 14T12-C2-5 · Analogue 35T12-C2-6 · Analogue 46T12-C2-7 · Thermistor 17T12-C2-8 · Digital 28T12-C2-9 · 5v Output9T12-C2-10 · Analogue 110T12-C2-11 · Digital 311T12-C2-12 · Crank12T12-C2-13 · Analogue 1213T12-C2-14 · Digital 414T12-C2-15 · Digital 515T12-C2-16 · Analogue 1116T12-C2-17 · Thermistor 317T12-C2-18 · Analogue 518T12-C2-19 · Analogue 619T12-C2-20 · Wheel 220T12-C2-21 · Sensor Ground21T12-C2-22 · Cam 122T12-C2-23 · Cam 323T12-C2-24 · 5v Output24T12-C2-25 · Thermistor 225T12-C2-26 · CAN High26T12-C2-27 · Digital 627T12-C2-28 · CAN Low28T12-C2-29 · Cam 229T12-C2-30 · Cam 430T12-C2-31 · Wheel 331T12-C2-32 · Wheel 432T12-C2-33 · Sensor Ground33T12-C2-34 · Analogue 934
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Analogue 2—W37—0.5OEM-B75-15———
2Wheel 1—W62—0.5OEM-B77-25———
3Analogue 10—W77—0.5OEM-B75-8———
4Digital 1—W66—0.5OEM-B76-10———
5Analogue 3—W38—0.5OEM-B75-23———
6Analogue 4—W39—0.5OEM-B75-16———
7Thermistor 1—W41—0.5OEM-B75-14———
8Digital 2—W67—0.5OEM-B76-4———
95v Output————————
10Analogue 1—W36—0.5OEM-B75-9———
11Digital 3—W68—0.5OEM-B77-18———
12Crank—W19—0.5OEM-B74-23———
13Analogue 12—W79—0.5OEM-B77-14———
14Digital 4—W69—0.5OEM-B77-19———
15Digital 5—W70—0.5OEM-B77-27———
16Analogue 11—W78—0.5OEM-B77-1———
17Thermistor 3—W61—0.5OEM-B76-17———
18Analogue 5—W40—0.5OEM-B75-24———
19Analogue 6—W58—0.5OEM-B75-10———
20Wheel 2—W63—0.5OEM-B76-11———
21Sensor Ground—W16—0.5SP-0V-1———
22Cam 1—W20—0.5OEM-B74-10———
23Cam 3————————
245v Output—W18—0.5OEM-B75-2———
25Thermistor 2—W60—0.5OEM-B75-22———
26CAN High————————
27Digital 6—W71—0.5OEM-B78-4———
28CAN Low————————
29Cam 2————————
30Cam 4————————
31Wheel 3—W64—0.5OEM-B76-5———
32Wheel 4—W65—0.5OEM-B74-25———
33Sensor Ground—W17—0.5SP-0V-1———
34Analogue 9—W76—0.5OEM-B74-24———

T12-C3

Mating face
T12-C3-1 · Lambda 2 Pump Current1T12-C3-2 · Lambda 2 VGND2T12-C3-3 · Lambda 2 Heater Negative3T12-C3-4 · PWM 94T12-C3-5 · Lambda 2 Trim Resistor5T12-C3-6 · Lambda 2 Nernst Voltage6T12-C3-7 · Lambda 1 Pump Current7T12-C3-8 · Lambda 1 VGND8T12-C3-9 · Lambda 1 Heater Negative9T12-C3-10 · PWM 810T12-C3-11 · Lambda 1 Trim Resistor11T12-C3-12 · Lambda 1 Nernst Voltage12T12-C3-13 · Analogue 1313T12-C3-14 · Analogue 1414T12-C3-15 · Analogue 1515T12-C3-16 · Analogue 1616T12-C3-17 · Analogue 717T12-C3-18 · Analogue 818T12-C3-19 · Digital 719T12-C3-20 · Digital 820T12-C3-21 · Digital 921T12-C3-22 · PWM 422T12-C3-23 · PWM 523T12-C3-24 · PWM 624T12-C3-25 · PWM 725T12-C3-26 · Permanent 12v26T12-C3-27 · Permanent 12v27T12-C3-28 · PWM 1028T12-C3-29 · PWM 1129T12-C3-30 · PWM 1230T12-C3-31 · Knock 131T12-C3-32 · Knock 232T12-C3-33 · CAN 2 High33T12-C3-34 · CAN 2 Low34
Wire side
T12-C3-1 · Lambda 2 Pump Current1T12-C3-2 · Lambda 2 VGND2T12-C3-3 · Lambda 2 Heater Negative3T12-C3-4 · PWM 94T12-C3-5 · Lambda 2 Trim Resistor5T12-C3-6 · Lambda 2 Nernst Voltage6T12-C3-7 · Lambda 1 Pump Current7T12-C3-8 · Lambda 1 VGND8T12-C3-9 · Lambda 1 Heater Negative9T12-C3-10 · PWM 810T12-C3-11 · Lambda 1 Trim Resistor11T12-C3-12 · Lambda 1 Nernst Voltage12T12-C3-13 · Analogue 1313T12-C3-14 · Analogue 1414T12-C3-15 · Analogue 1515T12-C3-16 · Analogue 1616T12-C3-17 · Analogue 717T12-C3-18 · Analogue 818T12-C3-19 · Digital 719T12-C3-20 · Digital 820T12-C3-21 · Digital 921T12-C3-22 · PWM 422T12-C3-23 · PWM 523T12-C3-24 · PWM 624T12-C3-25 · PWM 725T12-C3-26 · Permanent 12v26T12-C3-27 · Permanent 12v27T12-C3-28 · PWM 1028T12-C3-29 · PWM 1129T12-C3-30 · PWM 1230T12-C3-31 · Knock 131T12-C3-32 · Knock 232T12-C3-33 · CAN 2 High33T12-C3-34 · CAN 2 Low34
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Lambda 2 Pump Current————————
2Lambda 2 VGND————————
3Lambda 2 Heater Negative—W51—0.5OEM-B75-3———
4PWM 9—W47—0.5OEM-B76-3———
5Lambda 2 Trim Resistor————————
6Lambda 2 Nernst Voltage————————
7Lambda 1 Pump Current————————
8Lambda 1 VGND————————
9Lambda 1 Heater Negative—W44—0.5OEM-B75-4———
10PWM 8—W46—0.5OEM-B76-2———
11Lambda 1 Trim Resistor————————
12Lambda 1 Nernst Voltage————————
13Analogue 13—W80—0.5OEM-B77-16———
14Analogue 14—W81—0.5OEM-B77-2———
15Analogue 15—W82—0.5OEM-B77-21———
16Analogue 16—W83—0.5OEM-B77-26———
17Analogue 7—W59—0.5OEM-B75-12———
18Analogue 8—W75—0.5OEM-B75-20———
19Digital 7—W72—0.5OEM-B79-7———
20Digital 8—W73—0.5OEM-B79-8———
21Digital 9—W74—0.5OEM-B75-21———
22PWM 4—W35—0.5OEM-B74-20———
23PWM 5—W42—0.5OEM-B77-13———
24PWM 6—W43—0.5OEM-B78-10———
25PWM 7—W45—0.5OEM-B76-1———
26Permanent 12v—W5—0.85OEM-B78-1———
27Permanent 12v————————
28PWM 10—W48—0.5OEM-B76-6———
29PWM 11—W49—0.5OEM-B74-15———
30PWM 12—W50—0.5OEM-B74-5———
31Knock 1—W21—0.5OEM-B74-28———
32Knock 2—W22—0.5OEM-B74-27———
33CAN 2 High————————
34CAN 2 Low————————

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-B74-1Injector 3 (#30)injector_outT12-C1-34Injector 3injector_outsingle_source
OEM-B74-10Cam position (G2)trigger_inT12-C2-22Cam 1trigger_insingle_source
OEM-B74-11Ignition 1 (IGT, cyl 1&6)ignition_outT12-C1-10Coil 1ignition_outsingle_source
OEM-B74-12Ignition 2 (IGT2, cyl 5&2)ignition_outT12-C1-18Coil 2ignition_outsingle_source
OEM-B74-13Ignition 3 (IGT3, cyl 3&4)ignition_outT12-C1-1Coil 3ignition_outsingle_source
OEM-B74-15Wastegate VSV (PMC)low_side_outT12-C3-29PWM 11low_side_outsingle_source
OEM-B74-17VVT-i OCV - (OCV-)low_side_outT12-C1-5PWM 1low_side_outsingle_source
OEM-B74-18VVT-i OCV + (OCV+)low_side_outT12-C1-4PWM 2low_side_outsingle_source
OEM-B74-19ETCS-i clutch - (CL-)low_side_outT12-C1-3PWM 3low_side_outsingle_source
OEM-B74-2Injector 4 (#40)injector_outT12-C1-25Injector 4injector_outsingle_source
OEM-B74-20ETCS-i clutch + (CL+)low_side_outT12-C3-22PWM 4low_side_outsingle_source
OEM-B74-21Power ground (E01)groundT12-C1-13 + T12-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-B74-22Crank/cam sensor return (NE-)sensor_groundT12-C2-21 + T12-C2-33Sensor Ground + Sensor Groundsensor_groundsingle_source
OEM-B74-23Crank position (NE+)trigger_inT12-C2-12Cranktrigger_insingle_source
OEM-B74-24Neutral/park switch (NSW)digital_inT12-C2-34Analogue 9analog_insingle_source
OEM-B74-25Igniter verification (IGF)digital_inT12-C2-32Wheel 4digital_insingle_source
OEM-B74-27Knock sensor 2 (KNK2, rear)knock_inT12-C3-32Knock 2knock_insingle_source
OEM-B74-28Knock sensor 1 (KNK1, front)knock_inT12-C3-31Knock 1knock_insingle_source
OEM-B74-3Injector 5 (#50)injector_outT12-C1-16Injector 5injector_outsingle_source
OEM-B74-30ETCS-i motor shield (GEO1)shield———single_source
OEM-B74-31Power ground (E02)groundT12-C1-13 + T12-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-B74-4Injector 6 (#60)injector_outT12-C1-15Injector 6injector_outsingle_source
OEM-B74-5Intake air bypass VSV (VSV1)low_side_outT12-C3-30PWM 12low_side_outsingle_source
OEM-B74-7ETCS-i motor - (M-)hbridge_out———single_source
OEM-B74-8ETCS-i motor + (M+)hbridge_out———single_source
OEM-B74-9ETCS-i ground (ME01)groundT12-C1-13 + T12-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-B75-10Mass air flow (VG)analog_inT12-C2-19Analogue 6analog_insingle_source
OEM-B75-12O2 sensor (OX)lambda_nb_inT12-C3-17Analogue 7analog_insingle_source
OEM-B75-14Coolant temperature (THW)temp_inT12-C2-7Thermistor 1temp_insingle_source
OEM-B75-15Accelerator pedal 1 (VPA)analog_inT12-C2-1Analogue 2analog_insingle_source
OEM-B75-16Accelerator pedal 2 (VPA2)analog_inT12-C2-6Analogue 4analog_insingle_source
OEM-B75-17Power ground (E1)groundT12-C1-13 + T12-C1-14Power Ground 1 + Power Ground 2groundsingle_source
OEM-B75-18Sensor ground (E2)sensor_groundT12-C2-21 + T12-C2-33Sensor Ground + Sensor Groundsensor_groundsingle_source
OEM-B75-19MAF ground (EVG)sensor_groundT12-C2-21 + T12-C2-33Sensor Ground + Sensor Groundsensor_groundsingle_source
OEM-B75-2Sensor power (VC)vrefT12-C2-245v Outputvrefsingle_source
OEM-B75-20A/T 2nd-gear indicator (2)digital_inT12-C3-18Analogue 8analog_insingle_source
OEM-B75-21A/T 1st-gear indicator (L)digital_inT12-C3-21Digital 9digital_insingle_source
OEM-B75-22Intake air temperature (THA)temp_inT12-C2-25Thermistor 2temp_insingle_source
OEM-B75-23Throttle position 1 (VTA)analog_inT12-C2-5Analogue 3analog_insingle_source
OEM-B75-24Throttle position 2 (VTA2)analog_inT12-C2-18Analogue 5analog_insingle_source
OEM-B75-3Exhaust gas control VSV (VSV2)low_side_outT12-C3-3Lambda 2 Heater Negativelow_side_outsingle_source
OEM-B75-4O2 sensor heater (HT)low_side_outT12-C3-9Lambda 1 Heater Negativelow_side_outsingle_source
OEM-B75-5Injector 1 (#10)injector_outT12-C1-9Injector 1injector_outsingle_source
OEM-B75-6Injector 2 (#20)injector_outT12-C1-17Injector 2injector_outsingle_source
OEM-B75-7EVAP purge VSV (PRG)low_side_outT12-C1-24Injector 7injector_outsingle_source
OEM-B75-8Main oil pressure switch (MOPS)digital_inT12-C2-3Analogue 10analog_insingle_source
OEM-B75-9Manifold pressure (PIM)analog_inT12-C2-10Analogue 1analog_insingle_source
OEM-B76-1A/T shift solenoid 1 (S1)low_side_outT12-C3-25PWM 7low_side_outsingle_source
OEM-B76-10OD direct-clutch speed (NCO-)digital_inT12-C2-4Digital 1digital_insingle_source
OEM-B76-11No.2 speed sensor return (SP2-)digital_inT12-C2-20Wheel 2digital_insingle_source
OEM-B76-12Exhaust bypass VSV (VSV3)low_side_outT12-C1-23Injector 8injector_outsingle_source
OEM-B76-13A/T lock-up solenoid - (SLU-)low_side_outT12-C1-21Injector 9injector_outsingle_source
OEM-B76-14A/T accumulator solenoid - (SLN-)low_side_outT12-C1-22Injector 10injector_outsingle_source
OEM-B76-15A/T line-pressure solenoid - (SLT-)low_side_outT12-C1-8Injector 11injector_outsingle_source
OEM-B76-16Fuel pressure-up VSV (FPU)low_side_outT12-C1-32Injector 12injector_outsingle_source
OEM-B76-17A/T oil temperature (OIL)temp_inT12-C2-17Thermistor 3temp_insingle_source
OEM-B76-2A/T shift solenoid 2 (S2)low_side_outT12-C3-10PWM 8low_side_outsingle_source
OEM-B76-3A/T shift solenoid 3 (S3)low_side_outT12-C3-4PWM 9low_side_outsingle_source
OEM-B76-4OD direct-clutch speed (NCO+)digital_inT12-C2-8Digital 2digital_insingle_source
OEM-B76-5No.2 speed sensor (SP2+)digital_inT12-C2-31Wheel 3digital_insingle_source
OEM-B76-6A/T shift solenoid 4 (S4)low_side_outT12-C3-28PWM 10low_side_outsingle_source
OEM-B76-7A/T lock-up solenoid + (SLU+)low_side_out———single_source
OEM-B76-8A/T accumulator solenoid + (SLN+)low_side_out———single_source
OEM-B76-9A/T line-pressure solenoid + (SLT+)low_side_out———single_source
OEM-B77-1A/C request (AC)digital_inT12-C2-16Analogue 11analog_insingle_source
OEM-B77-13A/C clutch relay (ACMG)low_side_outT12-C3-23PWM 5low_side_outsingle_source
OEM-B77-14A/T shift down (SFTD)digital_inT12-C2-13Analogue 12analog_insingle_source
OEM-B77-16A/T reverse indicator (R)digital_inT12-C3-13Analogue 13analog_insingle_source
OEM-B77-18Rear right wheel speed (RRO)digital_inT12-C2-11Digital 3digital_insingle_source
OEM-B77-19Rear left wheel speed (RLO)digital_inT12-C2-14Digital 4digital_insingle_source
OEM-B77-2Starter signal (STA)digital_inT12-C3-14Analogue 14analog_insingle_source
OEM-B77-20Tachometer output (TACH)tacho_out———single_source
OEM-B77-21ABS active (ABS)digital_inT12-C3-15Analogue 15analog_insingle_source
OEM-B77-25No.1 speed sensor (SPD)digital_inT12-C2-2Wheel 1digital_insingle_source
OEM-B77-26Electrical load sense (ELS)digital_inT12-C3-16Analogue 16analog_insingle_source
OEM-B77-27Road speed (RSPD)digital_inT12-C2-15Digital 5digital_insingle_source
OEM-B77-4A/T shift up (SFTU)digital_in———single_source
OEM-B77-5Diagnostic/timing check (TC)digital_in———single_source
OEM-B77-6Stop light switch (STP)digital_in———single_source
OEM-B77-7A/T manual position (3)digital_in———single_source
OEM-B78-1Battery constant (BATT)power_inT12-C3-26Permanent 12vpower_insingle_source
OEM-B78-10EFI main relay control (M-REL)low_side_outT12-C3-24PWM 6low_side_outsingle_source
OEM-B78-11Serial diagnostic (SIL)serial———single_source
OEM-B78-16EFI main relay power (+B)power_inT12-C1-31Ignition 12v Inpower_insingle_source
OEM-B78-2TRAC snow-mode light (SNOW)low_side_out———single_source
OEM-B78-22Switch ground (EC)sensor_groundT12-C2-21 + T12-C2-33Sensor Ground + Sensor Groundsensor_groundsingle_source
OEM-B78-3TRAC snow-mode switch (SNWI)digital_in———single_source
OEM-B78-4Fuel pump diagnostic (DI)digital_inT12-C2-27Digital 6digital_insingle_source
OEM-B78-5Fuel pump control (FPC)low_side_out———single_source
OEM-B78-6Check-engine light (W)low_side_out———single_source
OEM-B78-7ETCS-i power (+BM)power_inT12-C1-31Ignition 12v Inpower_insingle_source
OEM-B78-8EFI main relay power (+B2)power_inT12-C1-31Ignition 12v Inpower_insingle_source
OEM-B78-9Ignition switch (IGSW)digital_in———single_source
OEM-B79-1TRAC enable light (IND)low_side_out———single_source
OEM-B79-14TRAC active light (CIND)low_side_out———single_source
OEM-B79-17A/T meter LCD (LPO3)low_side_out———single_source
OEM-B79-18A/T meter LCD (SPTL)low_side_out———single_source
OEM-B79-19Reverse buzzer (BZ)low_side_out———single_source
OEM-B79-2TRAC off switch (MSW)digital_in———single_source
OEM-B79-3A/T meter LCD (LPO1)low_side_out———single_source
OEM-B79-4A/T meter LCD (LPO2)low_side_out———single_source
OEM-B79-7Front right wheel speed (FRO)digital_inT12-C3-19Digital 7digital_insingle_source
OEM-B79-8Front left wheel speed (FLO)digital_inT12-C3-20Digital 8digital_insingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-B78-16SP-14V-10.85no routeEFI main relay power (+B)—
W2OEM-B78-7SP-14V-10.85no routeETCS-i power (+BM)—
W3OEM-B78-8SP-14V-10.85no routeEFI main relay power (+B2)—
W4SP-14V-1T12-C1-310.85no routeIgnition 12v In—
W5OEM-B78-1T12-C3-260.85no routeBattery constant (BATT)—
W6OEM-B74-21SP-GND-10.85no routePower ground (E01)—
W7OEM-B74-31SP-GND-10.85no routePower ground (E02)—
W8OEM-B74-9SP-GND-10.85no routeETCS-i ground (ME01)—
W9OEM-B75-17SP-GND-10.85no routePower ground (E1)—
W10SP-GND-1T12-C1-130.85no routePower Ground 1—
W11SP-GND-1T12-C1-140.85no routePower Ground 2—
W12OEM-B74-22SP-0V-10.5no routeCrank/cam sensor return (NE-)—
W13OEM-B75-18SP-0V-10.5no routeSensor ground (E2)—
W14OEM-B75-19SP-0V-10.5no routeMAF ground (EVG)—
W15OEM-B78-22SP-0V-10.5no routeSwitch ground (EC)—
W16SP-0V-1T12-C2-210.5no routeSensor Ground—
W17SP-0V-1T12-C2-330.5no routeSensor Ground—
W18OEM-B75-2T12-C2-240.5no routeSensor power (VC)—
W19OEM-B74-23T12-C2-120.5no routeCrank position (NE+)—
W20OEM-B74-10T12-C2-220.5no routeCam position (G2)—
W21OEM-B74-28T12-C3-310.5no routeKnock sensor 1 (KNK1, front)—
W22OEM-B74-27T12-C3-320.5no routeKnock sensor 2 (KNK2, rear)—
W23OEM-B74-11T12-C1-100.5no routeIgnition 1 (IGT, cyl 1&6)—
W24OEM-B74-12T12-C1-180.5no routeIgnition 2 (IGT2, cyl 5&2)—
W25OEM-B74-13T12-C1-10.5no routeIgnition 3 (IGT3, cyl 3&4)—
W26OEM-B75-5T12-C1-90.5no routeInjector 1 (#10)—
W27OEM-B75-6T12-C1-170.5no routeInjector 2 (#20)—
W28OEM-B74-1T12-C1-340.5no routeInjector 3 (#30)—
W29OEM-B74-2T12-C1-250.5no routeInjector 4 (#40)—
W30OEM-B74-3T12-C1-160.5no routeInjector 5 (#50)—
W31OEM-B74-4T12-C1-150.5no routeInjector 6 (#60)—
W32OEM-B74-17T12-C1-50.5no routeVVT-i OCV - (OCV-)—
W33OEM-B74-18T12-C1-40.5no routeVVT-i OCV + (OCV+)—
W34OEM-B74-19T12-C1-30.5no routeETCS-i clutch - (CL-)—
W35OEM-B74-20T12-C3-220.5no routeETCS-i clutch + (CL+)—
W36OEM-B75-9T12-C2-100.5no routeManifold pressure (PIM)—
W37OEM-B75-15T12-C2-10.5no routeAccelerator pedal 1 (VPA)—
W38OEM-B75-23T12-C2-50.5no routeThrottle position 1 (VTA)—
W39OEM-B75-16T12-C2-60.5no routeAccelerator pedal 2 (VPA2)—
W40OEM-B75-24T12-C2-180.5no routeThrottle position 2 (VTA2)—
W41OEM-B75-14T12-C2-70.5no routeCoolant temperature (THW)—
W42OEM-B77-13T12-C3-230.5no routeA/C clutch relay (ACMG)—
W43OEM-B78-10T12-C3-240.5no routeEFI main relay control (M-REL)—
W44OEM-B75-4T12-C3-90.5no routeO2 sensor heater (HT)—
W45OEM-B76-1T12-C3-250.5no routeA/T shift solenoid 1 (S1)—
W46OEM-B76-2T12-C3-100.5no routeA/T shift solenoid 2 (S2)—
W47OEM-B76-3T12-C3-40.5no routeA/T shift solenoid 3 (S3)—
W48OEM-B76-6T12-C3-280.5no routeA/T shift solenoid 4 (S4)—
W49OEM-B74-15T12-C3-290.5no routeWastegate VSV (PMC)—
W50OEM-B74-5T12-C3-300.5no routeIntake air bypass VSV (VSV1)—
W51OEM-B75-3T12-C3-30.5no routeExhaust gas control VSV (VSV2)—
W52OEM-B75-7T12-C1-240.5no routeEVAP purge VSV (PRG)—
W53OEM-B76-12T12-C1-230.5no routeExhaust bypass VSV (VSV3)—
W54OEM-B76-13T12-C1-210.5no routeA/T lock-up solenoid - (SLU-)—
W55OEM-B76-14T12-C1-220.5no routeA/T accumulator solenoid - (SLN-)—
W56OEM-B76-15T12-C1-80.5no routeA/T line-pressure solenoid - (SLT-)—
W57OEM-B76-16T12-C1-320.5no routeFuel pressure-up VSV (FPU)—
W58OEM-B75-10T12-C2-190.5no routeMass air flow (VG)—
W59OEM-B75-12T12-C3-170.5no routeO2 sensor (OX)—
W60OEM-B75-22T12-C2-250.5no routeIntake air temperature (THA)—
W61OEM-B76-17T12-C2-170.5no routeA/T oil temperature (OIL)—
W62OEM-B77-25T12-C2-20.5no routeNo.1 speed sensor (SPD)—
W63OEM-B76-11T12-C2-200.5no routeNo.2 speed sensor return (SP2-)—
W64OEM-B76-5T12-C2-310.5no routeNo.2 speed sensor (SP2+)—
W65OEM-B74-25T12-C2-320.5no routeIgniter verification (IGF)—
W66OEM-B76-10T12-C2-40.5no routeOD direct-clutch speed (NCO-)—
W67OEM-B76-4T12-C2-80.5no routeOD direct-clutch speed (NCO+)—
W68OEM-B77-18T12-C2-110.5no routeRear right wheel speed (RRO)—
W69OEM-B77-19T12-C2-140.5no routeRear left wheel speed (RLO)—
W70OEM-B77-27T12-C2-150.5no routeRoad speed (RSPD)—
W71OEM-B78-4T12-C2-270.5no routeFuel pump diagnostic (DI)—
W72OEM-B79-7T12-C3-190.5no routeFront right wheel speed (FRO)—
W73OEM-B79-8T12-C3-200.5no routeFront left wheel speed (FLO)—
W74OEM-B75-21T12-C3-210.5no routeA/T 1st-gear indicator (L)—
W75OEM-B75-20T12-C3-180.5no routeA/T 2nd-gear indicator (2)—
W76OEM-B74-24T12-C2-340.5no routeNeutral/park switch (NSW)—
W77OEM-B75-8T12-C2-30.5no routeMain oil pressure switch (MOPS)—
W78OEM-B77-1T12-C2-160.5no routeA/C request (AC)—
W79OEM-B77-14T12-C2-130.5no routeA/T shift down (SFTD)—
W80OEM-B77-16T12-C3-130.5no routeA/T reverse indicator (R)—
W81OEM-B77-2T12-C3-140.5no routeStarter signal (STA)—
W82OEM-B77-21T12-C3-150.5no routeABS active (ABS)—
W83OEM-B77-26T12-C3-160.5no routeElectrical load sense (ELS)—

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)72.000ea

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (21)

SeverityCodeSubjectMessage
errorINJECTOR_BALLASTT12The 2JZ-GTE injectors (2JZ-GTE fuel injector) are low-impedance, but T12 drives saturated (high-Z) injectors only. Add a ballast resistor pack in series with each injector, or use an ECU with low-Z / peak-and-hold injector drivers.
errorPHYS_REQUIRED_OPENT12-C3-27T12-C3-27 "Permanent 12v" is required but not wired.
errorREQUIRED_UNMAPPEDOEM-B74-7Required OEM function "ETCS-i motor - (M-)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-B74-8Required OEM function "ETCS-i motor + (M+)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-B78-9Required OEM function "Ignition switch (IGSW)" (digital_in) is not connected to the new ECU.
warnNET_FAMILYOEM-B74-24 ↔ T12-C2-34OEM-B74-24 "Neutral/park switch (NSW)" [digital_in] is wired to T12-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-B75-20 ↔ T12-C3-18OEM-B75-20 "A/T 2nd-gear indicator (2)" [digital_in] is wired to T12-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-B75-8 ↔ T12-C2-3OEM-B75-8 "Main oil pressure switch (MOPS)" [digital_in] is wired to T12-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-B77-1 ↔ T12-C2-16OEM-B77-1 "A/C request (AC)" [digital_in] is wired to T12-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-B77-14 ↔ T12-C2-13OEM-B77-14 "A/T shift down (SFTD)" [digital_in] is wired to T12-C2-13 "Analogue 12" [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-B77-16 ↔ T12-C3-13OEM-B77-16 "A/T reverse indicator (R)" [digital_in] is wired to T12-C3-13 "Analogue 13" [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-B77-2 ↔ T12-C3-14OEM-B77-2 "Starter signal (STA)" [digital_in] is wired to T12-C3-14 "Analogue 14" [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-B77-21 ↔ T12-C3-15OEM-B77-21 "ABS active (ABS)" [digital_in] is wired to T12-C3-15 "Analogue 15" [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-B77-26 ↔ T12-C3-16OEM-B77-26 "Electrical load sense (ELS)" [digital_in] is wired to T12-C3-16 "Analogue 16" [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.
infoNET_FAMILYOEM-B75-7 ↔ T12-C1-24OEM-B75-7 "EVAP purge VSV (PRG)" [low_side_out] is wired to T12-C1-24 "Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B76-12 ↔ T12-C1-23OEM-B76-12 "Exhaust bypass VSV (VSV3)" [low_side_out] is wired to T12-C1-23 "Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B76-13 ↔ T12-C1-21OEM-B76-13 "A/T lock-up solenoid - (SLU-)" [low_side_out] is wired to T12-C1-21 "Injector 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B76-14 ↔ T12-C1-22OEM-B76-14 "A/T accumulator solenoid - (SLN-)" [low_side_out] is wired to T12-C1-22 "Injector 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B76-15 ↔ T12-C1-8OEM-B76-15 "A/T line-pressure solenoid - (SLT-)" [low_side_out] is wired to T12-C1-8 "Injector 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B76-16 ↔ T12-C1-32OEM-B76-16 "Fuel pressure-up VSV (FPU)" [low_side_out] is wired to T12-C1-32 "Injector 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM22 optional OEM pins are not mapped: OEM-B74-30 ETCS-i motor shield (GEO1); OEM-B76-7 A/T lock-up solenoid + (SLU+); OEM-B76-8 A/T accumulator solenoid + (SLN+); OEM-B76-9 A/T line-pressure solenoid + (SLT+); OEM-B77-20 Tachometer output (TACH); OEM-B77-4 A/T shift up (SFTU); OEM-B77-5 Diagnostic/timing check (TC); OEM-B77-6 Stop light switch (STP); OEM-B77-7 A/T manual position (3); OEM-B78-11 Serial diagnostic (SIL); OEM-B78-2 TRAC snow-mode light (SNOW); OEM-B78-3 TRAC snow-mode switch (SNWI); OEM-B78-5 Fuel pump control (FPC); OEM-B78-6 Check-engine light (W); OEM-B79-1 TRAC enable light (IND); OEM-B79-14 TRAC active light (CIND); OEM-B79-17 A/T meter LCD (LPO3); OEM-B79-18 A/T meter LCD (SPTL); OEM-B79-19 Reverse buzzer (BZ); OEM-B79-2 TRAC off switch (MSW); OEM-B79-3 A/T meter LCD (LPO1); OEM-B79-4 A/T meter LCD (LPO2)

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-B78 9: 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 T12 has no dedicated key-on input - OEM-B74 7: ETCS-i motor - (M-): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - OEM-B74 8: ETCS-i motor + (M+): no +/− pair in the pinout (multi-phase or half-documented motor); wire by hand - T12-C3 27: Permanent 12v: required by DTAFast T12 but no stock pin feeds it; wire by hand Not wired: - OEM-B74 30: ETCS-i motor shield (GEO1): no shield pin on DTAFast T12 - OEM-B76 7: A/T lock-up solenoid + (SLU+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B76 8: A/T accumulator solenoid + (SLN+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B76 9: A/T line-pressure solenoid + (SLT+): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B78 2: TRAC snow-mode light (SNOW): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B78 5: Fuel pump control (FPC): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B78 6: Check-engine light (W): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 1: TRAC enable light (IND): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 14: TRAC active light (CIND): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 17: A/T meter LCD (LPO3): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 18: A/T meter LCD (SPTL): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 19: Reverse buzzer (BZ): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 3: A/T meter LCD (LPO1): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B79 4: A/T meter LCD (LPO2): no free low_side/relay_control/heater_low_side/ls_hs/injector on DTAFast T12 - OEM-B77 20: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on DTAFast T12 - OEM-B77 4: A/T shift up (SFTU): no free switch_in/frequency_in/analog_0_5 on DTAFast T12 - OEM-B77 5: Diagnostic/timing check (TC): no free switch_in/frequency_in/analog_0_5 on DTAFast T12 - OEM-B77 6: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on DTAFast T12 - OEM-B77 7: A/T manual position (3): no free switch_in/frequency_in/analog_0_5 on DTAFast T12 - OEM-B78 3: TRAC snow-mode switch (SNWI): no free switch_in/frequency_in/analog_0_5 on DTAFast T12 - OEM-B79 2: TRAC off switch (MSW): no free switch_in/frequency_in/analog_0_5 on DTAFast T12 - OEM-B78 11: Serial diagnostic (SIL): no free k_line on DTAFast T12

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docDTAFast T12+ ECU wiring diagram (served for T12 and T12+)https://cdn.shopify.com/s/files/1/0848/7508/4108/files/T12PLUS_Wiring-Diagram.pdf?v=1728572014———
3community_copywilbo666: 2JZ-GTE VVTi JZA80 Supra Engine Wiring (ECU pinout, B74-B79)http://wilbo666.pbworks.com/w/page/57949268/2JZ-GTE%20VVTi%20JZA80%20Supra%20Engine%20Wiring———