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Toyota 86 (ZN6, FA20) → MoTeC M170 13170 (auto)

Toyota 86 (ZN6, FA20) — MoTeC — M170
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-09

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 errors1: read the Findings page before cutting any wire
Size of the job72 wires · 9 connectors · 0 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-A33-1SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-A34-6SP-14V-10.85☐☐☐☐☐☐☐
W3SP-14V-1M170-A-230.85☐☐☐☐☐☐☐
W4SP-14V-1M170-A-320.85☐☐☐☐☐☐☐
W5SP-14V-1M170-A-410.85☐☐☐☐☐☐☐
W6OEM-A33-2M170-A-540.85☐☐☐☐☐☐☐
W7OEM-A33-4SP-GND-10.85☐☐☐☐☐☐☐
W8OEM-A34-1SP-GND-10.85☐☐☐☐☐☐☐
W9OEM-A34-2SP-GND-10.85☐☐☐☐☐☐☐
W10OEM-A34-3SP-GND-10.85☐☐☐☐☐☐☐
W11OEM-A36-3SP-GND-10.85☐☐☐☐☐☐☐
W12OEM-A36-4SP-GND-10.85☐☐☐☐☐☐☐
W13SP-GND-1M170-A-140.85☐☐☐☐☐☐☐
W14SP-GND-1M170-A-150.85☐☐☐☐☐☐☐
W15SP-GND-1M170-A-190.85☐☐☐☐☐☐☐
W16SP-GND-1M170-A-200.85☐☐☐☐☐☐☐
W17SP-GND-1M170-A-210.85☐☐☐☐☐☐☐
W18OEM-A33-29SP-0V-10.5☐☐☐☐☐☐☐
W19OEM-A34-27SP-0V-10.5☐☐☐☐☐☐☐
W20OEM-A35-29SP-0V-10.5☐☐☐☐☐☐☐
W21OEM-A35-30SP-0V-10.5☐☐☐☐☐☐☐
W22OEM-A36-29SP-0V-10.5☐☐☐☐☐☐☐
W23SP-0V-1M170-A-110.5☐☐☐☐☐☐☐
W24SP-0V-1M170-A-270.5☐☐☐☐☐☐☐
W25OEM-A34-34SP-5V1-10.5☐☐☐☐☐☐☐
W26OEM-A35-21SP-5V1-10.5☐☐☐☐☐☐☐
W27OEM-A35-22SP-5V1-10.5☐☐☐☐☐☐☐
W28OEM-A36-19SP-5V1-10.5☐☐☐☐☐☐☐
W29SP-5V1-1M170-A-160.5☐☐☐☐☐☐☐
W30OEM-A34-16M170-A-490.5☐☐☐☐☐☐☐
W31OEM-A34-14M170-A-560.5☐☐☐☐☐☐☐
W32OEM-A34-26M170-A-460.5☐☐☐☐☐☐☐
W33OEM-A34-25M170-A-450.5☐☐☐☐☐☐☐
W34OEM-A34-15M170-A-520.5☐☐☐☐☐☐☐
W35OEM-A34-28M170-A-290.5☐☐☐☐☐☐☐
W36OEM-A34-17M170-A-600.5☐☐☐☐☐☐☐
W37OEM-A36-21M170-A-10.5☐☐☐☐☐☐☐
W38OEM-A36-10M170-A-50.5☐☐☐☐☐☐☐
W39OEM-A36-31M170-A-40.5☐☐☐☐☐☐☐
W40OEM-A36-8M170-A-100.5☐☐☐☐☐☐☐
W41OEM-A36-12M170-A-330.5☐☐☐☐☐☐☐
W42OEM-A36-14M170-A-430.5☐☐☐☐☐☐☐
W43OEM-A36-22M170-A-500.5☐☐☐☐☐☐☐
W44OEM-A36-25M170-A-510.5☐☐☐☐☐☐☐
W45OEM-A36-24M170-A-630.5☐☐☐☐☐☐☐
W46OEM-A36-32M170-A-660.5☐☐☐☐☐☐☐
W47OEM-A36-13M170-A-240.5☐☐☐☐☐☐☐
W48OEM-A36-23M170-A-420.5☐☐☐☐☐☐☐
W49OEM-A36-1M170-A-90.5☐☐☐☐☐☐☐
W50OEM-A36-2M170-A-80.5☐☐☐☐☐☐☐
W51OEM-A35-13M170-A-570.5☐☐☐☐☐☐☐
W52OEM-A35-12M170-A-620.5☐☐☐☐☐☐☐
W53OEM-A35-11M170-A-590.5☐☐☐☐☐☐☐
W54OEM-A33-20M170-A-650.5☐☐☐☐☐☐☐
W55OEM-A35-17M170-A-580.5☐☐☐☐☐☐☐
W56OEM-A35-35M170-A-640.5☐☐☐☐☐☐☐
W57OEM-A33-22M170-A-260.5☐☐☐☐☐☐☐
W58OEM-A34-20M170-A-180.5☐☐☐☐☐☐☐
W59OEM-A35-31M170-A-60.5☐☐☐☐☐☐☐
W60OEM-A36-28M170-A-70.5☐☐☐☐☐☐☐
W61OEM-A35-23M170-A-120.5☐☐☐☐☐☐☐
W62OEM-A36-18M170-A-360.5☐☐☐☐☐☐☐
W63OEM-A34-21M170-A-350.5☐☐☐☐☐☐☐
W64OEM-A36-30M170-A-280.5☐☐☐☐☐☐☐
W65OEM-A33-12M170-A-380.5☐☐☐☐☐☐☐
W66OEM-A36-20M170-A-300.5☐☐☐☐☐☐☐
W67OEM-A33-8M170-A-440.5☐☐☐☐☐☐☐
W68OEM-A33-14M170-A-530.5☐☐☐☐☐☐☐
W69OEM-A33-15M170-A-130.5☐☐☐☐☐☐☐
W70OEM-A33-16M170-A-220.5☐☐☐☐☐☐☐
W71OEM-A33-19M170-A-400.5☐☐☐☐☐☐☐
W72OEM-A33-18M170-A-310.5☐☐☐☐☐☐☐

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
1M170-A-23M170-A-11open (OL)+12 V supply must not touch sensor ground
2M170-A-23M170-A-14open (OL)+12 V supply must not touch power ground
3M170-A-54M170-A-11open (OL)+12 V supply must not touch sensor ground
4M170-A-54M170-A-14open (OL)+12 V supply must not touch power ground
5M170-A-11M170-A-16open (OL)sensor ground must not touch 5 V sensor reference
6M170-A-14M170-A-16open (OL)power ground must not touch 5 V sensor reference
7M170-A-23M170-A-16open (OL)+12 V supply must not touch 5 V sensor reference
8M170-A-54M170-A-16open (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

RevLabelByDate
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Schematic

M170-AOEM-A33OEM-A34OEM-A35OEM-A36SP-0VSP-14VSP-5V1SP-GND

Connectors

M170-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Low Side Ignition 1—W37—0.5OEM-A36-21———
10Low Side Ignition 4—W40—0.5OEM-A36-8———
11Sensor 0V A—W23—0.5SP-0V-1———
12Analogue Voltage Input 5—W61—0.5OEM-A35-23———
13Universal Digital Input 7—W69—0.5OEM-A33-15———
14Battery Negative 1—W13—0.85SP-GND-1———
15Battery Negative 2—W14—0.85SP-GND-1———
16Sensor 5.0V A—W29—0.5SP-5V1-1———
17Low Side Ignition 5————————
18Analogue Voltage Input 2—W58—0.5OEM-A34-20———
19Battery Negative 3—W15—0.85SP-GND-1———
2Low Side Ignition 8————————
20Battery Negative 4—W16—0.85SP-GND-1———
21Battery Negative 5—W17—0.85SP-GND-1———
22Universal Digital Input 8—W70—0.5OEM-A33-16———
23Battery Positive—W3—0.85SP-14V-1———
24Peak Hold Injector 5—W47—0.5OEM-A36-13———
25Low Side Ignition 6————————
26Analogue Voltage Input 1—W57—0.5OEM-A33-22———
27Sensor 0V B—W24—0.5SP-0V-1———
28Analogue Temperature Input 1—W64—0.5OEM-A36-30———
29Knock Input 1—W35—0.5OEM-A34-28———
3Low Side Ignition 7————————
30Analogue Temperature Input 3—W66—0.5OEM-A36-20———
31CAN Bus 1 Low—W72—0.5OEM-A33-18———
32Battery Positive—W4—0.85SP-14V-1———
33Peak Hold Injector 1—W41—0.5OEM-A36-12———
34Sensor 5.0V B————————
35Analogue Voltage Input 7—W63—0.5OEM-A34-21———
36Analogue Voltage Input 6—W62—0.5OEM-A36-18———
37Sensor 6.3V————————
38Analogue Temperature Input 2—W65—0.5OEM-A33-12———
39Analogue Temperature Input 4————————
4Low Side Ignition 3—W39—0.5OEM-A36-31———
40CAN Bus 1 High—W71—0.5OEM-A33-19———
41Battery Positive—W5—0.85SP-14V-1———
42Peak Hold Injector 6—W48—0.5OEM-A36-23———
43Low Side Injector 1—W42—0.5OEM-A36-14———
44Analogue Voltage Input 8—W67—0.5OEM-A33-8———
45Universal Digital Input 4—W33—0.5OEM-A34-25———
46Universal Digital Input 3—W32—0.5OEM-A34-26———
47Ethernet Transmit -————————
48Ethernet Transmit +————————
49Universal Digital Input 1—W30—0.5OEM-A34-16———
5Low Side Ignition 2—W38—0.5OEM-A36-10———
50Peak Hold Injector 2—W43—0.5OEM-A36-22———
51Low Side Injector 2—W44—0.5OEM-A36-25———
52Universal Digital Input 5—W34—0.5OEM-A34-15———
53Universal Digital Input 6—W68—0.5OEM-A33-14———
54Battery Backup—W6—0.85OEM-A33-2———
55Ethernet Receive +————————
56Universal Digital Input 2—W31—0.5OEM-A34-14———
57Peak Hold Injector 7—W51—0.5OEM-A35-13———
58Half Bridge Output 5—W55—0.5OEM-A35-17———
59Half Bridge Output 3—W53—0.5OEM-A35-11———
6Analogue Voltage Input 3—W59—0.5OEM-A35-31———
60Knock Input 2—W36—0.5OEM-A34-17———
61Ethernet Receive -————————
62Peak Hold Injector 8—W52—0.5OEM-A35-12———
63Peak Hold Injector 3—W45—0.5OEM-A36-24———
64Half Bridge Output 6—W56—0.5OEM-A35-35———
65Half Bridge Output 4—W54—0.5OEM-A33-20———
66Peak Hold Injector 4—W46—0.5OEM-A36-32———
7Analogue Voltage Input 4—W60—0.5OEM-A36-28———
8Half Bridge Output 2—W50—0.5OEM-A36-2———
9Half Bridge Output 1—W49—0.5OEM-A36-1———

OEM-A33

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1ECU power (+B2, main relay)—W1—0.85SP-14V-1———
12Intake air temperature (THA, in MAF)—W65—0.5M170-A-38———
14Starter signal (STSW2)—W68—0.5M170-A-53———
15Clutch switch (CLSW)—W69—0.5M170-A-13———
16Neutral switch (NSW)—W70—0.5M170-A-22———
17Starter signal (STSW2)————————
18CAN low (CANL)—W72—0.5M170-A-31———
19CAN high (CANH)—W71—0.5M170-A-40———
2Battery constant (BATT, memory)—W6—0.85M170-A-54———
20Blower relay (HB)—W54—0.5M170-A-65———
22Mass air flow (VG)—W57—0.5M170-A-26———
27Ignition switch sense (IGSW, IG2 relay)————————
28Shield ground (SLE2)————————
29MAF sensor ground (E2G)—W18—0.5SP-0V-1———
3Stop light switch (ST1-)————————
4Power ground (EC)—W7—0.85SP-GND-1———
7Stop light switch (STP)————————
8A/C pressure sensor (ACP)—W67—0.5M170-A-44———

OEM-A34

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Power ground (E03)—W8—0.85SP-GND-1———
11DI injector confirmation (IJF1)————————
13High-pressure fuel pump spill valve (FPF)————————
14VVT cam sensor exhaust bank 1 (EV1+)—W31—0.5M170-A-56———
15VVT cam sensor intake bank 2 (VV2+)—W34—0.5M170-A-52———
16Crank position (NE+)—W30—0.5M170-A-49———
17Knock sensor 2 (KNK2)—W36—0.5M170-A-60———
18A/F ratio sensor (A1A-)————————
19A/F ratio sensor (A1A+)————————
2Power ground (E04)—W9—0.85SP-GND-1———
20Manifold absolute pressure (PIM)—W58—0.5M170-A-18———
21Heated oxygen sensor (OX1B, rear)—W63—0.5M170-A-35———
25VVT cam sensor exhaust bank 2 (EV2+)—W33—0.5M170-A-45———
26VVT cam sensor intake bank 1 (VV1+)—W32—0.5M170-A-46———
27Crank position return (NE-)—W19—0.5SP-0V-1———
28Knock sensor 1 (KNK1)—W35—0.5M170-A-29———
29Shield ground (EKNK)————————
3Power ground (E05)—W10—0.85SP-GND-1———
30Shield ground (SLE1)————————
31DI injector confirmation (IJF2)————————
32High-pressure fuel pump spill valve (FPD)————————
34OCV power source (VCV, 5V)—W25—0.5SP-5V1-1———
35Shield ground (SLE3)————————
5A/F ratio sensor heater (HA1A)————————
6ECU power (+B, main relay)—W2—0.85SP-14V-1———
9Fuel pressure sensor (PR)————————

OEM-A35

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Canister vent valve (VPMP)————————
10Fuel pump control monitor (DI)————————
11Cooling fan relay 3 (FAN1)—W53—0.5M170-A-59———
12Cooling fan relay 2 (FAN2)—W52—0.5M170-A-62———
13EFI main relay 1 (SSHUT)—W51—0.5M170-A-57———
15Tachometer output (TACH)————————
17ETCS relay (MCR)—W55—0.5M170-A-58———
19Fuel pump control (FPC)————————
20Canister pressure sensor (PPMP)————————
21Accelerator pedal 5V supply (VCPA)—W26—0.5SP-5V1-1———
22Accelerator pedal 5V supply (VCP2)—W27—0.5SP-5V1-1———
23Accelerator pedal position (VPA)—W61—0.5M170-A-12———
26Starter signal (STA)————————
29Accelerator pedal ground (EPA)—W20—0.5SP-0V-1———
30Accelerator pedal ground (EPA2)—W21—0.5SP-0V-1———
31Accelerator pedal position 2 (VPA2)—W59—0.5M170-A-6———
35A/C clutch relay (AC)—W56—0.5M170-A-64———
5Injector relay (IREL)————————
7ETCS relay (+BM)————————
8Leak detection pump (MPMP)————————

OEM-A36

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Throttle actuator motor - (M-)—W49—0.5M170-A-9———
10Ignition coil 2 (IGT2)—W38—0.5M170-A-5———
11Purge valve (PRG)————————
12Injector 1 port (#10)—W41—0.5M170-A-33———
13Injector 4 port (#40)—W47—0.5M170-A-24———
14Injector 1 direct (#1)—W42—0.5M170-A-43———
16OCV intake bank 2 (OC2)————————
17OCV intake bank 1 (OC1)————————
18Throttle position (VTA1)—W62—0.5M170-A-36———
19Sensor 5V supply (VC)—W28—0.5SP-5V1-1———
2Throttle actuator motor + (M+)—W50—0.5M170-A-8———
20Oil temperature (OT)—W66—0.5M170-A-30———
21Ignition coil 1 (IGT1)—W37—0.5M170-A-1———
22Injector 2 port (#20)—W43—0.5M170-A-50———
23Injector 4 direct (#4)—W48—0.5M170-A-42———
24Injector 3 direct (#3)—W45—0.5M170-A-63———
25Injector 2 direct (#2)—W44—0.5M170-A-51———
28Throttle position 2 (VTA2)—W60—0.5M170-A-7———
29Sensor ground (E1)—W22—0.5SP-0V-1———
3Power ground (E02)—W11—0.85SP-GND-1———
30Engine coolant temperature (THW)—W64—0.5M170-A-28———
31Ignition coil 3 (IGT3)—W39—0.5M170-A-4———
32Injector 3 port (#30)—W46—0.5M170-A-66———
4Power ground (E01)—W12—0.85SP-GND-1———
5OCV exhaust bank 2 (OE2)————————
6Heated oxygen sensor heater (HT1B)————————
7OCV exhaust bank 1 (OE1)————————
8Ignition coil 4 (IGT4)—W40—0.5M170-A-10———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W18—0.5OEM-A33-29———
1——W19—0.5OEM-A34-27———
1——W20—0.5OEM-A35-29———
1——W21—0.5OEM-A35-30———
1——W22—0.5OEM-A36-29———
1——W23—0.5M170-A-11———
1——W24—0.5M170-A-27———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-A33-1———
1——W2—0.85OEM-A34-6———
1——W3—0.85M170-A-23———
1——W4—0.85M170-A-32———
1——W5—0.85M170-A-41———

SP-5V1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W25—0.5OEM-A34-34———
1——W26—0.5OEM-A35-21———
1——W27—0.5OEM-A35-22———
1——W28—0.5OEM-A36-19———
1——W29—0.5M170-A-16———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W7—0.85OEM-A33-4———
1——W8—0.85OEM-A34-1———
1——W9—0.85OEM-A34-2———
1——W10—0.85OEM-A34-3———
1——W11—0.85OEM-A36-3———
1——W12—0.85OEM-A36-4———
1——W13—0.85M170-A-14———
1——W14—0.85M170-A-15———
1——W15—0.85M170-A-19———
1——W16—0.85M170-A-20———
1——W17—0.85M170-A-21———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-A33-1ECU power (+B2, main relay)power_inM170-A-23 + M170-A-32 + M170-A-41Battery Positive + Battery Positive + Battery Positivepower_insingle_source
OEM-A33-12Intake air temperature (THA, in MAF)temp_inM170-A-38Analogue Temperature Input 2temp_insingle_source
OEM-A33-14Starter signal (STSW2)digital_inM170-A-53Universal Digital Input 6digital_insingle_source
OEM-A33-15Clutch switch (CLSW)digital_inM170-A-13Universal Digital Input 7digital_insingle_source
OEM-A33-16Neutral switch (NSW)digital_inM170-A-22Universal Digital Input 8digital_insingle_source
OEM-A33-17Starter signal (STSW2)digital_in———single_source
OEM-A33-18CAN low (CANL)can_lM170-A-31CAN Bus 1 Lowcan_lsingle_source
OEM-A33-19CAN high (CANH)can_hM170-A-40CAN Bus 1 Highcan_hsingle_source
OEM-A33-2Battery constant (BATT, memory)power_inM170-A-54Battery Backuppower_insingle_source
OEM-A33-20Blower relay (HB)low_side_outM170-A-65Half Bridge Output 4hbridge_outsingle_source
OEM-A33-22Mass air flow (VG)analog_inM170-A-26Analogue Voltage Input 1analog_insingle_source
OEM-A33-27Ignition switch sense (IGSW, IG2 relay)digital_in———single_source
OEM-A33-28Shield ground (SLE2)shield———single_source
OEM-A33-29MAF sensor ground (E2G)sensor_groundM170-A-11 + M170-A-27Sensor 0V A + Sensor 0V Bsensor_groundsingle_source
OEM-A33-3Stop light switch (ST1-)digital_in———single_source
OEM-A33-4Power ground (EC)groundM170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5groundsingle_source
OEM-A33-7Stop light switch (STP)digital_in———single_source
OEM-A33-8A/C pressure sensor (ACP)analog_inM170-A-44Analogue Voltage Input 8analog_insingle_source
OEM-A34-1Power ground (E03)groundM170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5groundsingle_source
OEM-A34-11DI injector confirmation (IJF1)analog_in———single_source
OEM-A34-13High-pressure fuel pump spill valve (FPF)low_side_out———single_source
OEM-A34-14VVT cam sensor exhaust bank 1 (EV1+)trigger_inM170-A-56Universal Digital Input 2digital_insingle_source
OEM-A34-15VVT cam sensor intake bank 2 (VV2+)trigger_inM170-A-52Universal Digital Input 5digital_insingle_source
OEM-A34-16Crank position (NE+)trigger_inM170-A-49Universal Digital Input 1digital_insingle_source
OEM-A34-17Knock sensor 2 (KNK2)knock_inM170-A-60Knock Input 2knock_insingle_source
OEM-A34-18A/F ratio sensor (A1A-)————single_source
OEM-A34-19A/F ratio sensor (A1A+)————single_source
OEM-A34-2Power ground (E04)groundM170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5groundsingle_source
OEM-A34-20Manifold absolute pressure (PIM)analog_inM170-A-18Analogue Voltage Input 2analog_insingle_source
OEM-A34-21Heated oxygen sensor (OX1B, rear)lambda_nb_inM170-A-35Analogue Voltage Input 7analog_insingle_source
OEM-A34-25VVT cam sensor exhaust bank 2 (EV2+)trigger_inM170-A-45Universal Digital Input 4digital_insingle_source
OEM-A34-26VVT cam sensor intake bank 1 (VV1+)trigger_inM170-A-46Universal Digital Input 3digital_insingle_source
OEM-A34-27Crank position return (NE-)sensor_groundM170-A-11 + M170-A-27Sensor 0V A + Sensor 0V Bsensor_groundsingle_source
OEM-A34-28Knock sensor 1 (KNK1)knock_inM170-A-29Knock Input 1knock_insingle_source
OEM-A34-29Shield ground (EKNK)shield———single_source
OEM-A34-3Power ground (E05)groundM170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5groundsingle_source
OEM-A34-30Shield ground (SLE1)shield———single_source
OEM-A34-31DI injector confirmation (IJF2)analog_in———single_source
OEM-A34-32High-pressure fuel pump spill valve (FPD)low_side_out———single_source
OEM-A34-34OCV power source (VCV, 5V)vrefM170-A-16Sensor 5.0V Avrefsingle_source
OEM-A34-35Shield ground (SLE3)shield———single_source
OEM-A34-5A/F ratio sensor heater (HA1A)low_side_out———single_source
OEM-A34-6ECU power (+B, main relay)power_inM170-A-23 + M170-A-32 + M170-A-41Battery Positive + Battery Positive + Battery Positivepower_insingle_source
OEM-A34-9Fuel pressure sensor (PR)analog_in———single_source
OEM-A35-1Canister vent valve (VPMP)low_side_out———single_source
OEM-A35-10Fuel pump control monitor (DI)analog_in———single_source
OEM-A35-11Cooling fan relay 3 (FAN1)low_side_outM170-A-59Half Bridge Output 3hbridge_outsingle_source
OEM-A35-12Cooling fan relay 2 (FAN2)low_side_outM170-A-62Peak Hold Injector 8injector_outsingle_source
OEM-A35-13EFI main relay 1 (SSHUT)low_side_outM170-A-57Peak Hold Injector 7injector_outsingle_source
OEM-A35-15Tachometer output (TACH)tacho_out———single_source
OEM-A35-17ETCS relay (MCR)low_side_outM170-A-58Half Bridge Output 5hbridge_outsingle_source
OEM-A35-19Fuel pump control (FPC)low_side_out———single_source
OEM-A35-20Canister pressure sensor (PPMP)analog_in———single_source
OEM-A35-21Accelerator pedal 5V supply (VCPA)vrefM170-A-16Sensor 5.0V Avrefsingle_source
OEM-A35-22Accelerator pedal 5V supply (VCP2)vrefM170-A-16Sensor 5.0V Avrefsingle_source
OEM-A35-23Accelerator pedal position (VPA)analog_inM170-A-12Analogue Voltage Input 5analog_insingle_source
OEM-A35-26Starter signal (STA)digital_in———single_source
OEM-A35-29Accelerator pedal ground (EPA)sensor_groundM170-A-11 + M170-A-27Sensor 0V A + Sensor 0V Bsensor_groundsingle_source
OEM-A35-30Accelerator pedal ground (EPA2)sensor_groundM170-A-11 + M170-A-27Sensor 0V A + Sensor 0V Bsensor_groundsingle_source
OEM-A35-31Accelerator pedal position 2 (VPA2)analog_inM170-A-6Analogue Voltage Input 3analog_insingle_source
OEM-A35-35A/C clutch relay (AC)low_side_outM170-A-64Half Bridge Output 6hbridge_outsingle_source
OEM-A35-5Injector relay (IREL)low_side_out———single_source
OEM-A35-7ETCS relay (+BM)low_side_out———single_source
OEM-A35-8Leak detection pump (MPMP)low_side_out———single_source
OEM-A36-1Throttle actuator motor - (M-)hbridge_outM170-A-9Half Bridge Output 1hbridge_outsingle_source
OEM-A36-10Ignition coil 2 (IGT2)ignition_outM170-A-5Low Side Ignition 2ignition_outsingle_source
OEM-A36-11Purge valve (PRG)low_side_out———single_source
OEM-A36-12Injector 1 port (#10)injector_outM170-A-33Peak Hold Injector 1injector_outsingle_source
OEM-A36-13Injector 4 port (#40)injector_outM170-A-24Peak Hold Injector 5injector_outsingle_source
OEM-A36-14Injector 1 direct (#1)injector_outM170-A-43Low Side Injector 1injector_outsingle_source
OEM-A36-16OCV intake bank 2 (OC2)low_side_out———single_source
OEM-A36-17OCV intake bank 1 (OC1)low_side_out———single_source
OEM-A36-18Throttle position (VTA1)analog_inM170-A-36Analogue Voltage Input 6analog_insingle_source
OEM-A36-19Sensor 5V supply (VC)vrefM170-A-16Sensor 5.0V Avrefsingle_source
OEM-A36-2Throttle actuator motor + (M+)hbridge_outM170-A-8Half Bridge Output 2hbridge_outsingle_source
OEM-A36-20Oil temperature (OT)temp_inM170-A-30Analogue Temperature Input 3temp_insingle_source
OEM-A36-21Ignition coil 1 (IGT1)ignition_outM170-A-1Low Side Ignition 1ignition_outsingle_source
OEM-A36-22Injector 2 port (#20)injector_outM170-A-50Peak Hold Injector 2injector_outsingle_source
OEM-A36-23Injector 4 direct (#4)injector_outM170-A-42Peak Hold Injector 6injector_outsingle_source
OEM-A36-24Injector 3 direct (#3)injector_outM170-A-63Peak Hold Injector 3injector_outsingle_source
OEM-A36-25Injector 2 direct (#2)injector_outM170-A-51Low Side Injector 2injector_outsingle_source
OEM-A36-28Throttle position 2 (VTA2)analog_inM170-A-7Analogue Voltage Input 4analog_insingle_source
OEM-A36-29Sensor ground (E1)sensor_groundM170-A-11 + M170-A-27Sensor 0V A + Sensor 0V Bsensor_groundsingle_source
OEM-A36-3Power ground (E02)groundM170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5groundsingle_source
OEM-A36-30Engine coolant temperature (THW)temp_inM170-A-28Analogue Temperature Input 1temp_insingle_source
OEM-A36-31Ignition coil 3 (IGT3)ignition_outM170-A-4Low Side Ignition 3ignition_outsingle_source
OEM-A36-32Injector 3 port (#30)injector_outM170-A-66Peak Hold Injector 4injector_outsingle_source
OEM-A36-4Power ground (E01)groundM170-A-14 + M170-A-15 + M170-A-19 + M170-A-20 + M170-A-21Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5groundsingle_source
OEM-A36-5OCV exhaust bank 2 (OE2)low_side_out———single_source
OEM-A36-6Heated oxygen sensor heater (HT1B)low_side_out———single_source
OEM-A36-7OCV exhaust bank 1 (OE1)low_side_out———single_source
OEM-A36-8Ignition coil 4 (IGT4)ignition_outM170-A-10Low Side Ignition 4ignition_outsingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-A33-1SP-14V-10.85no routeECU power (+B2, main relay)—
W2OEM-A34-6SP-14V-10.85no routeECU power (+B, main relay)—
W3SP-14V-1M170-A-230.85no routeBattery Positive—
W4SP-14V-1M170-A-320.85no routeBattery Positive—
W5SP-14V-1M170-A-410.85no routeBattery Positive—
W6OEM-A33-2M170-A-540.85no routeBattery constant (BATT, memory)—
W7OEM-A33-4SP-GND-10.85no routePower ground (EC)—
W8OEM-A34-1SP-GND-10.85no routePower ground (E03)—
W9OEM-A34-2SP-GND-10.85no routePower ground (E04)—
W10OEM-A34-3SP-GND-10.85no routePower ground (E05)—
W11OEM-A36-3SP-GND-10.85no routePower ground (E02)—
W12OEM-A36-4SP-GND-10.85no routePower ground (E01)—
W13SP-GND-1M170-A-140.85no routeBattery Negative 1—
W14SP-GND-1M170-A-150.85no routeBattery Negative 2—
W15SP-GND-1M170-A-190.85no routeBattery Negative 3—
W16SP-GND-1M170-A-200.85no routeBattery Negative 4—
W17SP-GND-1M170-A-210.85no routeBattery Negative 5—
W18OEM-A33-29SP-0V-10.5no routeMAF sensor ground (E2G)—
W19OEM-A34-27SP-0V-10.5no routeCrank position return (NE-)—
W20OEM-A35-29SP-0V-10.5no routeAccelerator pedal ground (EPA)—
W21OEM-A35-30SP-0V-10.5no routeAccelerator pedal ground (EPA2)—
W22OEM-A36-29SP-0V-10.5no routeSensor ground (E1)—
W23SP-0V-1M170-A-110.5no routeSensor 0V A—
W24SP-0V-1M170-A-270.5no routeSensor 0V B—
W25OEM-A34-34SP-5V1-10.5no routeOCV power source (VCV, 5V)—
W26OEM-A35-21SP-5V1-10.5no routeAccelerator pedal 5V supply (VCPA)—
W27OEM-A35-22SP-5V1-10.5no routeAccelerator pedal 5V supply (VCP2)—
W28OEM-A36-19SP-5V1-10.5no routeSensor 5V supply (VC)—
W29SP-5V1-1M170-A-160.5no routeSensor 5.0V A—
W30OEM-A34-16M170-A-490.5no routeCrank position (NE+)—
W31OEM-A34-14M170-A-560.5no routeVVT cam sensor exhaust bank 1 (EV1+)—
W32OEM-A34-26M170-A-460.5no routeVVT cam sensor intake bank 1 (VV1+)—
W33OEM-A34-25M170-A-450.5no routeVVT cam sensor exhaust bank 2 (EV2+)—
W34OEM-A34-15M170-A-520.5no routeVVT cam sensor intake bank 2 (VV2+)—
W35OEM-A34-28M170-A-290.5no routeKnock sensor 1 (KNK1)—
W36OEM-A34-17M170-A-600.5no routeKnock sensor 2 (KNK2)—
W37OEM-A36-21M170-A-10.5no routeIgnition coil 1 (IGT1)—
W38OEM-A36-10M170-A-50.5no routeIgnition coil 2 (IGT2)—
W39OEM-A36-31M170-A-40.5no routeIgnition coil 3 (IGT3)—
W40OEM-A36-8M170-A-100.5no routeIgnition coil 4 (IGT4)—
W41OEM-A36-12M170-A-330.5no routeInjector 1 port (#10)—
W42OEM-A36-14M170-A-430.5no routeInjector 1 direct (#1)—
W43OEM-A36-22M170-A-500.5no routeInjector 2 port (#20)—
W44OEM-A36-25M170-A-510.5no routeInjector 2 direct (#2)—
W45OEM-A36-24M170-A-630.5no routeInjector 3 direct (#3)—
W46OEM-A36-32M170-A-660.5no routeInjector 3 port (#30)—
W47OEM-A36-13M170-A-240.5no routeInjector 4 port (#40)—
W48OEM-A36-23M170-A-420.5no routeInjector 4 direct (#4)—
W49OEM-A36-1M170-A-90.5no routeThrottle actuator motor - (M-)—
W50OEM-A36-2M170-A-80.5no routeThrottle actuator motor + (M+)—
W51OEM-A35-13M170-A-570.5no routeEFI main relay 1 (SSHUT)—
W52OEM-A35-12M170-A-620.5no routeCooling fan relay 2 (FAN2)—
W53OEM-A35-11M170-A-590.5no routeCooling fan relay 3 (FAN1)—
W54OEM-A33-20M170-A-650.5no routeBlower relay (HB)—
W55OEM-A35-17M170-A-580.5no routeETCS relay (MCR)—
W56OEM-A35-35M170-A-640.5no routeA/C clutch relay (AC)—
W57OEM-A33-22M170-A-260.5no routeMass air flow (VG)—
W58OEM-A34-20M170-A-180.5no routeManifold absolute pressure (PIM)—
W59OEM-A35-31M170-A-60.5no routeAccelerator pedal position 2 (VPA2)—
W60OEM-A36-28M170-A-70.5no routeThrottle position 2 (VTA2)—
W61OEM-A35-23M170-A-120.5no routeAccelerator pedal position (VPA)—
W62OEM-A36-18M170-A-360.5no routeThrottle position (VTA1)—
W63OEM-A34-21M170-A-350.5no routeHeated oxygen sensor (OX1B, rear)—
W64OEM-A36-30M170-A-280.5no routeEngine coolant temperature (THW)—
W65OEM-A33-12M170-A-380.5no routeIntake air temperature (THA, in MAF)—
W66OEM-A36-20M170-A-300.5no routeOil temperature (OT)—
W67OEM-A33-8M170-A-440.5no routeA/C pressure sensor (ACP)—
W68OEM-A33-14M170-A-530.5no routeStarter signal (STSW2)—
W69OEM-A33-15M170-A-130.5no routeClutch switch (CLSW)—
W70OEM-A33-16M170-A-220.5no routeNeutral switch (NSW)—
W71OEM-A33-19M170-A-400.5no routeCAN high (CANH)—
W72OEM-A33-18M170-A-310.5no routeCAN low (CANL)—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (16)

SeverityCodeSubjectMessage
errorDBW_SENSOR_INPUTtpsOnly 1 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them.
warnDBW_MOTOR_CURRENTM170-A-8Cannot confirm M170 can drive the throttle motor: M170-A-8 "Half Bridge Output 2" is rated 12.0 A, but the motor current at OEM-A36-2 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A).
warnDBW_MOTOR_CURRENTM170-A-9Cannot confirm M170 can drive the throttle motor: M170-A-9 "Half Bridge Output 1" is rated 12.0 A, but the motor current at OEM-A36-1 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A).
warnNET_FAMILYOEM-A33-20 ↔ M170-A-65OEM-A33-20 "Blower relay (HB)" [low_side_out] is wired to M170-A-65 "Half Bridge Output 4" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-A34-14 ↔ M170-A-56OEM-A34-14 "VVT cam sensor exhaust bank 1 (EV1+)" [trigger_in] is wired to M170-A-56 "Universal Digital Input 2" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warnNET_FAMILYOEM-A34-15 ↔ M170-A-52OEM-A34-15 "VVT cam sensor intake bank 2 (VV2+)" [trigger_in] is wired to M170-A-52 "Universal Digital Input 5" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warnNET_FAMILYOEM-A34-16 ↔ M170-A-49OEM-A34-16 "Crank position (NE+)" [trigger_in] is wired to M170-A-49 "Universal Digital Input 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warnNET_FAMILYOEM-A34-25 ↔ M170-A-45OEM-A34-25 "VVT cam sensor exhaust bank 2 (EV2+)" [trigger_in] is wired to M170-A-45 "Universal Digital Input 4" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warnNET_FAMILYOEM-A34-26 ↔ M170-A-46OEM-A34-26 "VVT cam sensor intake bank 1 (VV1+)" [trigger_in] is wired to M170-A-46 "Universal Digital Input 3" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warnNET_FAMILYOEM-A35-11 ↔ M170-A-59OEM-A35-11 "Cooling fan relay 3 (FAN1)" [low_side_out] is wired to M170-A-59 "Half Bridge Output 3" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-A35-17 ↔ M170-A-58OEM-A35-17 "ETCS relay (MCR)" [low_side_out] is wired to M170-A-58 "Half Bridge Output 5" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-A35-35 ↔ M170-A-64OEM-A35-35 "A/C clutch relay (AC)" [low_side_out] is wired to M170-A-64 "Half Bridge Output 6" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNO_FUEL_PUMPfuel pumpThis engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car.
infoNET_FAMILYOEM-A35-12 ↔ M170-A-62OEM-A35-12 "Cooling fan relay 2 (FAN2)" [low_side_out] is wired to M170-A-62 "Peak Hold Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-A35-13 ↔ M170-A-57OEM-A35-13 "EFI main relay 1 (SSHUT)" [low_side_out] is wired to M170-A-57 "Peak Hold Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM31 optional OEM pins are not mapped: OEM-A33-17 Starter signal (STSW2); OEM-A33-27 Ignition switch sense (IGSW, IG2 relay); OEM-A33-28 Shield ground (SLE2); OEM-A33-3 Stop light switch (ST1-); OEM-A33-7 Stop light switch (STP); OEM-A34-11 DI injector confirmation (IJF1); OEM-A34-13 High-pressure fuel pump spill valve (FPF); OEM-A34-18 A/F ratio sensor (A1A-); OEM-A34-19 A/F ratio sensor (A1A+); OEM-A34-29 Shield ground (EKNK); OEM-A34-30 Shield ground (SLE1); OEM-A34-31 DI injector confirmation (IJF2); OEM-A34-32 High-pressure fuel pump spill valve (FPD); OEM-A34-35 Shield ground (SLE3); OEM-A34-5 A/F ratio sensor heater (HA1A); OEM-A34-9 Fuel pressure sensor (PR); OEM-A35-1 Canister vent valve (VPMP); OEM-A35-10 Fuel pump control monitor (DI); OEM-A35-15 Tachometer output (TACH); OEM-A35-19 Fuel pump control (FPC); OEM-A35-20 Canister pressure sensor (PPMP); OEM-A35-26 Starter signal (STA); OEM-A35-5 Injector relay (IREL); OEM-A35-7 ETCS relay (+BM); OEM-A35-8 Leak detection pump (MPMP); OEM-A36-11 Purge valve (PRG); OEM-A36-16 OCV intake bank 2 (OC2); OEM-A36-17 OCV intake bank 1 (OC1); OEM-A36-5 OCV exhaust bank 2 (OE2); OEM-A36-6 Heated oxygen sensor heater (HT1B); OEM-A36-7 OCV exhaust bank 1 (OE1)

Accepted (0)

CodeSubjectReasonBy

Notes

Auto-mapped by auto_map() from the library pin data on 2026-10-09. Review every wire against both manuals before building. Not wired: - OEM-A33 28: Shield ground (SLE2): no shield pin on MoTeC M170 - OEM-A34 29: Shield ground (EKNK): no shield pin on MoTeC M170 - OEM-A34 30: Shield ground (SLE1): no shield pin on MoTeC M170 - OEM-A34 35: Shield ground (SLE3): no shield pin on MoTeC M170 - OEM-A33 27: Ignition switch sense (IGSW, IG2 relay): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MoTeC M170 has no dedicated key-on input - OEM-A35 5: Injector relay (IREL): no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MoTeC M170 - OEM-A35 7: ETCS relay (+BM): no free relay_control/low_side/ls_hs/injector/hbridge rated ≥ 0.2 A on MoTeC M170 - OEM-A34 5: A/F ratio sensor heater (HA1A): no free heater_low_side/low_side/ls_hs/hbridge on MoTeC M170 - OEM-A36 6: Heated oxygen sensor heater (HT1B): no free heater_low_side/low_side/ls_hs/hbridge on MoTeC M170 - OEM-A36 17: OCV intake bank 1 (OC1): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A36 7: OCV exhaust bank 1 (OE1): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A36 16: OCV intake bank 2 (OC2): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A36 5: OCV exhaust bank 2 (OE2): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A34 13: High-pressure fuel pump spill valve (FPF): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A34 32: High-pressure fuel pump spill valve (FPD): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A35 1: Canister vent valve (VPMP): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A35 19: Fuel pump control (FPC): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A35 8: Leak detection pump (MPMP): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A36 11: Purge valve (PRG): no free low_side/ls_hs/injector/hbridge on MoTeC M170 - OEM-A35 15: Tachometer output (TACH): no free tacho/frequency_out/low_side/ls_hs on MoTeC M170 - OEM-A34 11: DI injector confirmation (IJF1): no free analog_0_5 on MoTeC M170 - OEM-A34 31: DI injector confirmation (IJF2): no free analog_0_5 on MoTeC M170 - OEM-A34 9: Fuel pressure sensor (PR): no free analog_0_5 on MoTeC M170 - OEM-A35 10: Fuel pump control monitor (DI): no free analog_0_5 on MoTeC M170 - OEM-A35 20: Canister pressure sensor (PPMP): no free analog_0_5 on MoTeC M170 - OEM-A33 17: Starter signal (STSW2): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-A33 3: Stop light switch (ST1-): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-A33 7: Stop light switch (STP): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-A35 26: Starter signal (STA): no free switch_in/frequency_in/analog_0_5 on MoTeC M170 - OEM-A34 18: A/F ratio sensor (A1A-): not classified in the library; wire by hand - OEM-A34 19: A/F ratio sensor (A1A+): not classified in the library; wire by hand

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docMoTeC: M1 ECU Hardware manual (7 Nov 2013) — M130/M150/M170/M190 pinout tableshttps://web.archive.org/web/2023id_/https://www.motec.com.au/hessian/uploads/M1_ECU_Hardware_c2517380e4.pdf—2026-10-0503dc5975f739
4vendor_docScion FR-S / Toyota 86 Repair Manual (2013) — FA20 ECM terminal pinout (SFI system)https://gt86.me/images/0/09/2013_Scion_FR-S_Repair_Manual.pdf———