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RSX Type-S 2002-04 (K20A2) → MoTeC M150 13150 (auto)

RSX Type-S 2002-04 (K20A2) — MoTeC — M150
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-08

Before you start

Statusproposal · not yet verified: nobody has reported building and running this harness
Open errorsnone
Size of the job69 wires · 10 connectors · 4 part lines
Tools715131-1 · wire strippers · multimeter · heat gun + heat-shrink
Terminals316836-1
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-A-2SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-A-3SP-14V-10.85☐☐☐☐☐☐☐
W3SP-14V-1M150-B-130.85☐☐☐☐☐☐☐
W4SP-14V-1M150-B-190.85☐☐☐☐☐☐☐
W5SP-14V-1M150-C-260.85☐☐☐☐☐☐☐
W6OEM-A-23SP-GND-10.85☐☐☐☐☐☐☐
W7OEM-A-24SP-GND-10.85☐☐☐☐☐☐☐
W8OEM-A-4SP-GND-10.85☐☐☐☐☐☐☐
W9OEM-A-5SP-GND-10.85☐☐☐☐☐☐☐
W10OEM-E-3SP-GND-10.85☐☐☐☐☐☐☐
W11SP-GND-1M150-A-240.85☐☐☐☐☐☐☐
W12SP-GND-1M150-A-250.85☐☐☐☐☐☐☐
W13SP-GND-1M150-A-320.85☐☐☐☐☐☐☐
W14SP-GND-1M150-C-100.85☐☐☐☐☐☐☐
W15SP-GND-1M150-C-110.85☐☐☐☐☐☐☐
W16OEM-A-10SP-0V-10.5☐☐☐☐☐☐☐
W17OEM-A-11SP-0V-10.5☐☐☐☐☐☐☐
W18OEM-E-4SP-0V-10.5☐☐☐☐☐☐☐
W19SP-0V-1M150-A-260.5☐☐☐☐☐☐☐
W20SP-0V-1M150-A-270.5☐☐☐☐☐☐☐
W21SP-0V-1M150-A-330.5☐☐☐☐☐☐☐
W22SP-0V-1M150-A-340.5☐☐☐☐☐☐☐
W23SP-0V-1M150-D-150.5☐☐☐☐☐☐☐
W24SP-0V-1M150-D-160.5☐☐☐☐☐☐☐
W25OEM-A-20M150-A-100.5☐☐☐☐☐☐☐
W26OEM-A-21M150-A-180.5☐☐☐☐☐☐☐
W27OEM-E-5M150-A-190.5☐☐☐☐☐☐☐
W28OEM-A-7M150-D-10.5☐☐☐☐☐☐☐
W29OEM-A-25M150-D-20.5☐☐☐☐☐☐☐
W30OEM-A-26M150-D-80.5☐☐☐☐☐☐☐
W31OEM-A-9M150-D-70.5☐☐☐☐☐☐☐
W32OEM-A-30M150-C-30.5☐☐☐☐☐☐☐
W33OEM-A-29M150-C-40.5☐☐☐☐☐☐☐
W34OEM-A-28M150-C-50.5☐☐☐☐☐☐☐
W35OEM-A-27M150-C-60.5☐☐☐☐☐☐☐
W36OEM-B-5M150-C-190.5☐☐☐☐☐☐☐
W37OEM-B-4M150-C-230.5☐☐☐☐☐☐☐
W38OEM-B-3M150-C-200.5☐☐☐☐☐☐☐
W39OEM-B-2M150-C-240.5☐☐☐☐☐☐☐
W40OEM-E-7M150-B-90.5☐☐☐☐☐☐☐
W41OEM-B-6M150-B-150.5☐☐☐☐☐☐☐
W42OEM-E-1M150-B-80.5☐☐☐☐☐☐☐
W43OEM-E-18M150-B-140.5☐☐☐☐☐☐☐
W44OEM-E-8M150-C-210.5☐☐☐☐☐☐☐
W45OEM-E-6M150-C-180.5☐☐☐☐☐☐☐
W46OEM-A-1M150-C-10.5☐☐☐☐☐☐☐
W47OEM-A-12M150-C-220.5☐☐☐☐☐☐☐
W48OEM-B-15M150-C-270.5☐☐☐☐☐☐☐
W49OEM-B-1M150-C-280.5☐☐☐☐☐☐☐
W50OEM-B-18M150-C-290.5☐☐☐☐☐☐☐
W51OEM-B-21M150-C-300.5☐☐☐☐☐☐☐
W52OEM-B-23M150-B-220.5☐☐☐☐☐☐☐
W53OEM-B-7M150-B-230.5☐☐☐☐☐☐☐
W54OEM-E-21M150-B-240.5☐☐☐☐☐☐☐
W55OEM-E-31M150-B-250.5☐☐☐☐☐☐☐
W56OEM-A-19M150-C-140.5☐☐☐☐☐☐☐
W57OEM-A-15M150-C-150.5☐☐☐☐☐☐☐
W58OEM-E-2M150-A-110.5☐☐☐☐☐☐☐
W59OEM-B-8M150-D-30.5☐☐☐☐☐☐☐
W60OEM-B-17M150-D-40.5☐☐☐☐☐☐☐
W61OEM-B-13M150-C-160.5☐☐☐☐☐☐☐
W62OEM-E-14M150-C-170.5☐☐☐☐☐☐☐
W63OEM-E-15M150-C-250.5☐☐☐☐☐☐☐
W64OEM-A-18M150-D-90.5☐☐☐☐☐☐☐
W65OEM-B-10M150-A-230.5☐☐☐☐☐☐☐
W66OEM-B-9M150-A-150.5☐☐☐☐☐☐☐
W67OEM-E-16M150-A-160.5☐☐☐☐☐☐☐
W68OEM-E-20M150-A-170.5☐☐☐☐☐☐☐
W69OEM-E-22M150-D-100.5☐☐☐☐☐☐☐

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
1M150-B-13M150-A-24open (OL)+12 V supply must not touch power ground
2M150-B-13M150-A-26open (OL)+12 V supply must not touch sensor ground
3M150-A-24M150-A-10open (OL)power ground must not touch 5 V sensor reference
4M150-A-24M150-A-18open (OL)power ground must not touch 5 V sensor reference
5M150-A-24M150-A-19open (OL)power ground must not touch 5 V sensor reference
6M150-A-26M150-A-10open (OL)sensor ground must not touch 5 V sensor reference
7M150-A-26M150-A-18open (OL)sensor ground must not touch 5 V sensor reference
8M150-A-26M150-A-19open (OL)sensor ground must not touch 5 V sensor reference
9M150-B-13M150-A-10open (OL)+12 V supply must not touch 5 V sensor reference
10M150-B-13M150-A-18open (OL)+12 V supply must not touch 5 V sensor reference
11M150-B-13M150-A-19open (OL)+12 V supply must not touch 5 V sensor reference

Revisions

RevLabelByDate
No revisions yet.

Schematic

M150-AM150-BM150-CM150-DOEM-AOEM-BOEM-ESP-0VSP-14VSP-GND

Connectors

M150-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Analogue Temperature Input 5————————
10Sensor 5.0V C1—W25—0.5OEM-A-20———
11Lambda Narrow Input 1—W58—0.5OEM-E-2———
12Lambda Narrow Input 2————————
13Knock Input 3————————
14Knock Input 4————————
15Digital Input 2—W66—0.5OEM-B-9———
16Digital Input 3—W67—0.5OEM-E-16———
17Digital Input 4—W68—0.5OEM-E-20———
18Sensor 5.0V C2—W26—0.5OEM-A-21———
19Sensor 5.0V B2—W27—0.5OEM-E-5———
2Analogue Temperature Input 6————————
20LIN Bus————————
21RS232 Receive————————
22RS232 Transmit————————
23Digital Input 1—W65—0.5OEM-B-10———
24Battery Negative 3—W11—0.85SP-GND-1———
25Battery Negative 4—W12—0.85SP-GND-1———
26Sensor 0V C1—W19—0.5SP-0V-1———
27Sensor 0V C2—W20—0.5SP-0V-1———
28CAN Bus 3 High————————
29CAN Bus 3 Low————————
3Analogue Voltage Input 15————————
30CAN Bus 2 High————————
31CAN Bus 2 Low————————
32Battery Negative 5—W13—0.85SP-GND-1———
33Sensor 0V B1—W21—0.5SP-0V-1———
34Sensor 0V A1—W22—0.5SP-0V-1———
4Analogue Voltage Input 16————————
5Analogue Voltage Input 17————————
6Low Side Ignition 9————————
7Low Side Ignition 10————————
8Low Side Ignition 11————————
9Low Side Ignition 12————————

M150-B

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Half Bridge Output 9————————
10Analogue Voltage Input 9————————
11Analogue Voltage Input 10————————
12Analogue Voltage Input 11————————
13Battery Positive—W3—0.85SP-14V-1———
14Low Side Injector 6—W43—0.5OEM-E-18———
15Low Side Injector 4—W41—0.5OEM-B-6———
16Analogue Voltage Input 12————————
17Analogue Voltage Input 13————————
18Analogue Voltage Input 14————————
19Battery Positive—W4—0.85SP-14V-1———
2Half Bridge Output 10————————
20Half Bridge Output 7————————
21Half Bridge Output 8————————
22Peak Hold Injector 9—W52—0.5OEM-B-23———
23Peak Hold Injector 10—W53—0.5OEM-B-7———
24Peak Hold Injector 11—W54—0.5OEM-E-21———
25Peak Hold Injector 12—W55—0.5OEM-E-31———
26Sensor 5.0V A————————
3Universal Digital Input 8————————
4Universal Digital Input 9————————
5Universal Digital Input 10————————
6Universal Digital Input 11————————
7Universal Digital Input 12————————
8Low Side Injector 5—W42—0.5OEM-E-1———
9Low Side Injector 3—W40—0.5OEM-E-7———

M150-C

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Half Bridge Output 2—W46—0.5OEM-A-1———
10Battery Negative 1—W14—0.85SP-GND-1———
11Battery Negative 2—W15—0.85SP-GND-1———
12Low Side Ignition 7————————
13Low Side Ignition 8————————
14Analogue Voltage Input 1—W56—0.5OEM-A-19———
15Analogue Voltage Input 2—W57—0.5OEM-A-15———
16Analogue Voltage Input 3—W61—0.5OEM-B-13———
17Analogue Voltage Input 4—W62—0.5OEM-E-14———
18Half Bridge Output 1—W45—0.5OEM-E-6———
19Peak Hold Injector 1—W36—0.5OEM-B-5———
2Sensor 5.0V A————————
20Peak Hold Injector 2—W38—0.5OEM-B-3———
21Peak Hold Injector 3—W44—0.5OEM-E-8———
22Peak Hold Injector 4—W47—0.5OEM-A-12———
23Low Side Injector 1—W37—0.5OEM-B-4———
24Low Side Injector 2—W39—0.5OEM-B-2———
25Analogue Voltage Input 5—W63—0.5OEM-E-15———
26Battery Positive—W5—0.85SP-14V-1———
27Peak Hold Injector 5—W48—0.5OEM-B-15———
28Peak Hold Injector 6—W49—0.5OEM-B-1———
29Peak Hold Injector 7—W50—0.5OEM-B-18———
3Low Side Ignition 1—W32—0.5OEM-A-30———
30Peak Hold Injector 8—W51—0.5OEM-B-21———
31Half Bridge Output 3————————
32Half Bridge Output 4————————
33Half Bridge Output 5————————
34Half Bridge Output 6————————
4Low Side Ignition 2—W33—0.5OEM-A-29———
5Low Side Ignition 3—W34—0.5OEM-A-28———
6Low Side Ignition 4—W35—0.5OEM-A-27———
7Low Side Ignition 5————————
8Low Side Ignition 6————————
9Sensor 5.0V B————————

M150-D

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Universal Digital Input 1—W28—0.5OEM-A-7———
10Universal Digital Input 5—W69—0.5OEM-E-22———
11Universal Digital Input 6————————
12Battery Backup————————
13Knock Input 2————————
14Universal Digital Input 7————————
15Sensor 0V A—W23—0.5SP-0V-1———
16Sensor 0V B—W24—0.5SP-0V-1———
17CAN Bus 1 High————————
18CAN Bus 1 Low————————
19Sensor 6.3V————————
2Universal Digital Input 2—W29—0.5OEM-A-25———
20Analogue Voltage Input 6————————
21Analogue Voltage Input 7————————
22Analogue Voltage Input 8————————
23Ethernet Transmit +————————
24Ethernet Transmit -————————
25Ethernet Receive +————————
26Ethernet Receive -————————
3Analogue Temperature Input 1—W59—0.5OEM-B-8———
4Analogue Temperature Input 2—W60—0.5OEM-B-17———
5Analogue Temperature Input 3————————
6Analogue Temperature Input 4————————
7Knock Input 1—W31—0.5OEM-A-9———
8Universal Digital Input 3—W30—0.5OEM-A-26———
9Universal Digital Input 4—W64—0.5OEM-A-18———

OEM-A

Mating face
Wire side
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1A/F sensor heater control (AFSHTC)—W46—0.5M150-C-1———
2Ignition power 2 (IGP2)—W1—0.85SP-14V-1———
3Ignition power 1 (IGP1)—W2—0.85SP-14V-1———
4Power ground 2 (PG2)—W8—0.85SP-GND-1———
5Power ground 1 (PG1)—W9—0.85SP-GND-1———
6A/F sensor + (AFS+, wideband Ip)————————
7Crank position sensor (CKP)—W28—0.5M150-D-1———
8—————————
9Knock sensor (KS)—W31—0.5M150-D-7———
10Sensor ground 2 (SG2)—W16—0.5SP-0V-1———
11Sensor ground 1 (SG1)—W17—0.5SP-0V-1———
12Idle air control valve (IACV)—W47—0.5M150-C-22———
13—————————
14—————————
15Throttle position sensor (TPS)—W57—0.5M150-C-15———
16A/F sensor - (AFS-, wideband Vs)————————
17—————————
18Vehicle speed sensor (VSS, M/T)—W64—0.5M150-D-9———
19Manifold absolute pressure (MAP)—W56—0.5M150-C-14———
20Sensor 5V supply 2 (VCC2)—W25—0.5M150-A-10———
21Sensor 5V supply 1 (VCC1)—W26—0.5M150-A-18———
22A/F sensor heater supply (AFSHTC+)————————
23Logic ground 2 (LG2)—W6—0.85SP-GND-1———
24Logic ground 1 (LG1)—W7—0.85SP-GND-1———
25Camshaft position A (CMP A)—W29—0.5M150-D-2———
26Camshaft position B (CMP B)—W30—0.5M150-D-8———
27Ignition coil 4 (IGPLS4)—W35—0.5M150-C-6———
28Ignition coil 3 (IGPLS3)—W34—0.5M150-C-5———
29Ignition coil 2 (IGPLS2)—W33—0.5M150-C-4———
30Ignition coil 1 (IGPLS1)—W32—0.5M150-C-3———
31—————————

OEM-B

Mating face
Wire side
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1VTC oil control solenoid (+)—W49—0.5M150-C-28———
2Injector 4 (INJ4)—W39—0.5M150-C-24———
3Injector 3 (INJ3)—W38—0.5M150-C-20———
4Injector 2 (INJ2)—W37—0.5M150-C-23———
5Injector 1 (INJ1)—W36—0.5M150-C-19———
6Radiator fan control (FANC)—W41—0.5M150-B-15———
7Reverse lockout solenoid (RVS, Type-S)—W53—0.5M150-B-23———
8Coolant temp sensor (ECT)—W59—0.5M150-D-3———
9VTEC oil pressure switch (VTPSW)—W66—0.5M150-A-15———
10Alternator L signal (ALTL)—W65—0.5M150-A-23———
11—————————
12—————————
13Alternator FR signal (ALTF)—W61—0.5M150-C-16———
14—————————
15VTEC solenoid (VTS)—W48—0.5M150-C-27———
16—————————
17Intake air temp sensor (IAT)—W60—0.5M150-D-4———
18Alternator control (ALTC)—W50—0.5M150-C-29———
19—————————
20—————————
21Evap canister purge valve (PCS)—W51—0.5M150-C-30———
22—————————
23VTC oil control solenoid (-)—W52—0.5M150-B-22———
24—————————

OEM-E

Mating face
Wire side
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Immobilizer fuel pump relay (IMO FPR)—W42—0.5M150-B-8———
2Secondary heated O2 sensor (SHO2S)—W58—0.5M150-A-11———
3Logic ground 3 (LG3)—W10—0.85SP-GND-1———
4Sensor ground 3 (SG3)—W18—0.5SP-0V-1———
5Sensor 5V supply 3 (VCC3)—W27—0.5M150-A-19———
6Secondary O2 heater control (SO2SHTC)—W45—0.5M150-C-18———
7Main relay control (MRLY)—W40—0.5M150-B-9———
8A/F sensor heater relay control (AFSHTCR)—W44—0.5M150-C-21———
9Ignition switch signal (IG1)————————
10—————————
11—————————
12—————————
13—————————
14Fuel tank pressure sensor (FTP)—W62—0.5M150-C-17———
15Electrical load detector (ELD)—W63—0.5M150-C-25———
16Power steering pressure switch (PSPSW)—W67—0.5M150-A-16———
17—————————
18A/C clutch relay (ACC)—W43—0.5M150-B-14———
19—————————
20Brake switch / interlock (2WBS)—W68—0.5M150-A-17———
21Evap vent shut valve (VSV)—W54—0.5M150-B-24———
22Brake switch (BKSW)—W69—0.5M150-D-10———
23K-line (diagnostic)————————
24Multiplex communication (SEFMJ)————————
25—————————
26Engine speed pulse / tacho (NEP)————————
27Immobilizer code (IMOCD)————————
28—————————
29Service check signal (SCS)————————
30Write enable signal (WEN)————————
31Malfunction indicator lamp (MIL)—W55—0.5M150-B-25———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W16—0.5OEM-A-10———
1——W17—0.5OEM-A-11———
1——W18—0.5OEM-E-4———
1——W19—0.5M150-A-26———
1——W20—0.5M150-A-27———
1——W21—0.5M150-A-33———
1——W22—0.5M150-A-34———
1——W23—0.5M150-D-15———
1——W24—0.5M150-D-16———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-A-2———
1——W2—0.85OEM-A-3———
1——W3—0.85M150-B-13———
1——W4—0.85M150-B-19———
1——W5—0.85M150-C-26———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W6—0.85OEM-A-23———
1——W7—0.85OEM-A-24———
1——W8—0.85OEM-A-4———
1——W9—0.85OEM-A-5———
1——W10—0.85OEM-E-3———
1——W11—0.85M150-A-24———
1——W12—0.85M150-A-25———
1——W13—0.85M150-A-32———
1——W14—0.85M150-C-10———
1——W15—0.85M150-C-11———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-A-1A/F sensor heater control (AFSHTC)low_side_outM150-C-1Half Bridge Output 2hbridge_outsingle_source
OEM-A-10Sensor ground 2 (SG2)sensor_groundM150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V Bsensor_groundcorroborated
OEM-A-11Sensor ground 1 (SG1)sensor_groundM150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V Bsensor_groundcorroborated
OEM-A-12Idle air control valve (IACV)low_side_outM150-C-22Peak Hold Injector 4injector_outcorroborated
OEM-A-15Throttle position sensor (TPS)analog_inM150-C-15Analogue Voltage Input 2analog_incorroborated
OEM-A-16A/F sensor - (AFS-, wideband Vs)wb_vs———single_source
OEM-A-18Vehicle speed sensor (VSS, M/T)digital_inM150-D-9Universal Digital Input 4digital_incorroborated
OEM-A-19Manifold absolute pressure (MAP)analog_inM150-C-14Analogue Voltage Input 1analog_incorroborated
OEM-A-2Ignition power 2 (IGP2)power_inM150-B-13 + M150-B-19 + M150-C-26Battery Positive + Battery Positive + Battery Positivepower_incorroborated
OEM-A-20Sensor 5V supply 2 (VCC2)vrefM150-A-10Sensor 5.0V C1vrefcorroborated
OEM-A-21Sensor 5V supply 1 (VCC1)vrefM150-A-18Sensor 5.0V C2vrefcorroborated
OEM-A-22A/F sensor heater supply (AFSHTC+)power_out———single_source
OEM-A-23Logic ground 2 (LG2)groundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundcorroborated
OEM-A-24Logic ground 1 (LG1)groundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundcorroborated
OEM-A-25Camshaft position A (CMP A)trigger_inM150-D-2Universal Digital Input 2digital_insingle_source
OEM-A-26Camshaft position B (CMP B)trigger_inM150-D-8Universal Digital Input 3digital_insingle_source
OEM-A-27Ignition coil 4 (IGPLS4)ignition_outM150-C-6Low Side Ignition 4ignition_outcorroborated
OEM-A-28Ignition coil 3 (IGPLS3)ignition_outM150-C-5Low Side Ignition 3ignition_outcorroborated
OEM-A-29Ignition coil 2 (IGPLS2)ignition_outM150-C-4Low Side Ignition 2ignition_outcorroborated
OEM-A-3Ignition power 1 (IGP1)power_inM150-B-13 + M150-B-19 + M150-C-26Battery Positive + Battery Positive + Battery Positivepower_incorroborated
OEM-A-30Ignition coil 1 (IGPLS1)ignition_outM150-C-3Low Side Ignition 1ignition_outcorroborated
OEM-A-4Power ground 2 (PG2)groundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundcorroborated
OEM-A-5Power ground 1 (PG1)groundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundcorroborated
OEM-A-6A/F sensor + (AFS+, wideband Ip)wb_ip———single_source
OEM-A-7Crank position sensor (CKP)trigger_inM150-D-1Universal Digital Input 1digital_incorroborated
OEM-A-9Knock sensor (KS)knock_inM150-D-7Knock Input 1knock_incorroborated
OEM-B-1VTC oil control solenoid (+)low_side_outM150-C-28Peak Hold Injector 6injector_outcorroborated
OEM-B-10Alternator L signal (ALTL)digital_inM150-A-23Digital Input 1digital_insingle_source
OEM-B-13Alternator FR signal (ALTF)analog_inM150-C-16Analogue Voltage Input 3analog_insingle_source
OEM-B-15VTEC solenoid (VTS)low_side_outM150-C-27Peak Hold Injector 5injector_outsingle_source
OEM-B-17Intake air temp sensor (IAT)temp_inM150-D-4Analogue Temperature Input 2temp_incorroborated
OEM-B-18Alternator control (ALTC)low_side_outM150-C-29Peak Hold Injector 7injector_outcorroborated
OEM-B-2Injector 4 (INJ4)injector_outM150-C-24Low Side Injector 2injector_outcorroborated
OEM-B-21Evap canister purge valve (PCS)low_side_outM150-C-30Peak Hold Injector 8injector_outcorroborated
OEM-B-23VTC oil control solenoid (-)low_side_outM150-B-22Peak Hold Injector 9injector_outcorroborated
OEM-B-3Injector 3 (INJ3)injector_outM150-C-20Peak Hold Injector 2injector_outcorroborated
OEM-B-4Injector 2 (INJ2)injector_outM150-C-23Low Side Injector 1injector_outcorroborated
OEM-B-5Injector 1 (INJ1)injector_outM150-C-19Peak Hold Injector 1injector_outcorroborated
OEM-B-6Radiator fan control (FANC)low_side_outM150-B-15Low Side Injector 4injector_outcorroborated
OEM-B-7Reverse lockout solenoid (RVS, Type-S)low_side_outM150-B-23Peak Hold Injector 10injector_outcorroborated
OEM-B-8Coolant temp sensor (ECT)temp_inM150-D-3Analogue Temperature Input 1temp_incorroborated
OEM-B-9VTEC oil pressure switch (VTPSW)digital_inM150-A-15Digital Input 2digital_incorroborated
OEM-E-1Immobilizer fuel pump relay (IMO FPR)low_side_outM150-B-8Low Side Injector 5injector_outcorroborated
OEM-E-14Fuel tank pressure sensor (FTP)analog_inM150-C-17Analogue Voltage Input 4analog_incorroborated
OEM-E-15Electrical load detector (ELD)analog_inM150-C-25Analogue Voltage Input 5analog_incorroborated
OEM-E-16Power steering pressure switch (PSPSW)digital_inM150-A-16Digital Input 3digital_incorroborated
OEM-E-18A/C clutch relay (ACC)low_side_outM150-B-14Low Side Injector 6injector_outcorroborated
OEM-E-2Secondary heated O2 sensor (SHO2S)lambda_nb_inM150-A-11Lambda Narrow Input 1lambda_nb_incorroborated
OEM-E-20Brake switch / interlock (2WBS)digital_inM150-A-17Digital Input 4digital_insingle_source
OEM-E-21Evap vent shut valve (VSV)low_side_outM150-B-24Peak Hold Injector 11injector_outcorroborated
OEM-E-22Brake switch (BKSW)digital_inM150-D-10Universal Digital Input 5digital_incorroborated
OEM-E-23K-line (diagnostic)serial———single_source
OEM-E-24Multiplex communication (SEFMJ)serial———corroborated
OEM-E-26Engine speed pulse / tacho (NEP)tacho_out———corroborated
OEM-E-27Immobilizer code (IMOCD)————single_source
OEM-E-29Service check signal (SCS)————single_source
OEM-E-3Logic ground 3 (LG3)groundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundcorroborated
OEM-E-30Write enable signal (WEN)————single_source
OEM-E-31Malfunction indicator lamp (MIL)low_side_outM150-B-25Peak Hold Injector 12injector_outcorroborated
OEM-E-4Sensor ground 3 (SG3)sensor_groundM150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V Bsensor_groundcorroborated
OEM-E-5Sensor 5V supply 3 (VCC3)vrefM150-A-19Sensor 5.0V B2vrefcorroborated
OEM-E-6Secondary O2 heater control (SO2SHTC)low_side_outM150-C-18Half Bridge Output 1hbridge_outcorroborated
OEM-E-7Main relay control (MRLY)low_side_outM150-B-9Low Side Injector 3injector_outcorroborated
OEM-E-8A/F sensor heater relay control (AFSHTCR)low_side_outM150-C-21Peak Hold Injector 3injector_outcorroborated
OEM-E-9Ignition switch signal (IG1)digital_in———corroborated

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-A-2SP-14V-10.85no routeIgnition power 2 (IGP2)—
W2OEM-A-3SP-14V-10.85no routeIgnition power 1 (IGP1)—
W3SP-14V-1M150-B-130.85no routeBattery Positive—
W4SP-14V-1M150-B-190.85no routeBattery Positive—
W5SP-14V-1M150-C-260.85no routeBattery Positive—
W6OEM-A-23SP-GND-10.85no routeLogic ground 2 (LG2)—
W7OEM-A-24SP-GND-10.85no routeLogic ground 1 (LG1)—
W8OEM-A-4SP-GND-10.85no routePower ground 2 (PG2)—
W9OEM-A-5SP-GND-10.85no routePower ground 1 (PG1)—
W10OEM-E-3SP-GND-10.85no routeLogic ground 3 (LG3)—
W11SP-GND-1M150-A-240.85no routeBattery Negative 3—
W12SP-GND-1M150-A-250.85no routeBattery Negative 4—
W13SP-GND-1M150-A-320.85no routeBattery Negative 5—
W14SP-GND-1M150-C-100.85no routeBattery Negative 1—
W15SP-GND-1M150-C-110.85no routeBattery Negative 2—
W16OEM-A-10SP-0V-10.5no routeSensor ground 2 (SG2)—
W17OEM-A-11SP-0V-10.5no routeSensor ground 1 (SG1)—
W18OEM-E-4SP-0V-10.5no routeSensor ground 3 (SG3)—
W19SP-0V-1M150-A-260.5no routeSensor 0V C1—
W20SP-0V-1M150-A-270.5no routeSensor 0V C2—
W21SP-0V-1M150-A-330.5no routeSensor 0V B1—
W22SP-0V-1M150-A-340.5no routeSensor 0V A1—
W23SP-0V-1M150-D-150.5no routeSensor 0V A—
W24SP-0V-1M150-D-160.5no routeSensor 0V B—
W25OEM-A-20M150-A-100.5no routeSensor 5V supply 2 (VCC2)—
W26OEM-A-21M150-A-180.5no routeSensor 5V supply 1 (VCC1)—
W27OEM-E-5M150-A-190.5no routeSensor 5V supply 3 (VCC3)—
W28OEM-A-7M150-D-10.5no routeCrank position sensor (CKP)—
W29OEM-A-25M150-D-20.5no routeCamshaft position A (CMP A)—
W30OEM-A-26M150-D-80.5no routeCamshaft position B (CMP B)—
W31OEM-A-9M150-D-70.5no routeKnock sensor (KS)—
W32OEM-A-30M150-C-30.5no routeIgnition coil 1 (IGPLS1)—
W33OEM-A-29M150-C-40.5no routeIgnition coil 2 (IGPLS2)—
W34OEM-A-28M150-C-50.5no routeIgnition coil 3 (IGPLS3)—
W35OEM-A-27M150-C-60.5no routeIgnition coil 4 (IGPLS4)—
W36OEM-B-5M150-C-190.5no routeInjector 1 (INJ1)—
W37OEM-B-4M150-C-230.5no routeInjector 2 (INJ2)—
W38OEM-B-3M150-C-200.5no routeInjector 3 (INJ3)—
W39OEM-B-2M150-C-240.5no routeInjector 4 (INJ4)—
W40OEM-E-7M150-B-90.5no routeMain relay control (MRLY)—
W41OEM-B-6M150-B-150.5no routeRadiator fan control (FANC)—
W42OEM-E-1M150-B-80.5no routeImmobilizer fuel pump relay (IMO FPR)—
W43OEM-E-18M150-B-140.5no routeA/C clutch relay (ACC)—
W44OEM-E-8M150-C-210.5no routeA/F sensor heater relay control (AFSHTCR)—
W45OEM-E-6M150-C-180.5no routeSecondary O2 heater control (SO2SHTC)—
W46OEM-A-1M150-C-10.5no routeA/F sensor heater control (AFSHTC)—
W47OEM-A-12M150-C-220.5no routeIdle air control valve (IACV)—
W48OEM-B-15M150-C-270.5no routeVTEC solenoid (VTS)—
W49OEM-B-1M150-C-280.5no routeVTC oil control solenoid (+)—
W50OEM-B-18M150-C-290.5no routeAlternator control (ALTC)—
W51OEM-B-21M150-C-300.5no routeEvap canister purge valve (PCS)—
W52OEM-B-23M150-B-220.5no routeVTC oil control solenoid (-)—
W53OEM-B-7M150-B-230.5no routeReverse lockout solenoid (RVS, Type-S)—
W54OEM-E-21M150-B-240.5no routeEvap vent shut valve (VSV)—
W55OEM-E-31M150-B-250.5no routeMalfunction indicator lamp (MIL)—
W56OEM-A-19M150-C-140.5no routeManifold absolute pressure (MAP)—
W57OEM-A-15M150-C-150.5no routeThrottle position sensor (TPS)—
W58OEM-E-2M150-A-110.5no routeSecondary heated O2 sensor (SHO2S)—
W59OEM-B-8M150-D-30.5no routeCoolant temp sensor (ECT)—
W60OEM-B-17M150-D-40.5no routeIntake air temp sensor (IAT)—
W61OEM-B-13M150-C-160.5no routeAlternator FR signal (ALTF)—
W62OEM-E-14M150-C-170.5no routeFuel tank pressure sensor (FTP)—
W63OEM-E-15M150-C-250.5no routeElectrical load detector (ELD)—
W64OEM-A-18M150-D-90.5no routeVehicle speed sensor (VSS, M/T)—
W65OEM-B-10M150-A-230.5no routeAlternator L signal (ALTL)—
W66OEM-B-9M150-A-150.5no routeVTEC oil pressure switch (VTPSW)—
W67OEM-E-16M150-A-160.5no routePower steering pressure switch (PSPSW)—
W68OEM-E-20M150-A-170.5no routeBrake switch / interlock (2WBS)—
W69OEM-E-22M150-D-100.5no routeBrake switch (BKSW)—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit
connector1318682-6TEK-series ECU harness plug A (040-3 HD plug assy, 31P)1.000ea
connector353029-1TEK-series ECU harness plug B (040 H/D-3 plug HSG assy, 24P)1.000ea
connector353826-1TEK-series ECU harness plug E (040 HD 31P plug HSG assy-B, 31P)1.000ea
terminal316836-1TEMultilock 040 III HD socket, tin, 22–18 AWG (0.3–0.85 mm²)55.000ea

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (23)

SeverityCodeSubjectMessage
warnDATASET_GAPRSX ECU A5 of 31 cavities on RSX ECU A have no pin data (8,13,14,17,31). Anything there is invisible to these checks.
warnDATASET_GAPRSX ECU B8 of 24 cavities on RSX ECU B have no pin data (11,12,14,16,19,20,22,24). Anything there is invisible to these checks.
warnDATASET_GAPRSX ECU E8 of 31 cavities on RSX ECU E have no pin data (10,11,12,13,17,19,25,28). Anything there is invisible to these checks.
warnNET_FAMILYOEM-A-1 ↔ M150-C-1OEM-A-1 "A/F sensor heater control (AFSHTC)" [low_side_out] is wired to M150-C-1 "Half Bridge Output 2" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-A-25 ↔ M150-D-2OEM-A-25 "Camshaft position A (CMP A)" [trigger_in] is wired to M150-D-2 "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-A-26 ↔ M150-D-8OEM-A-26 "Camshaft position B (CMP B)" [trigger_in] is wired to M150-D-8 "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-A-7 ↔ M150-D-1OEM-A-7 "Crank position sensor (CKP)" [trigger_in] is wired to M150-D-1 "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-E-6 ↔ M150-C-18OEM-E-6 "Secondary O2 heater control (SO2SHTC)" [low_side_out] is wired to M150-C-18 "Half Bridge Output 1" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
infoNET_FAMILYOEM-A-12 ↔ M150-C-22OEM-A-12 "Idle air control valve (IACV)" [low_side_out] is wired to M150-C-22 "Peak Hold Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-1 ↔ M150-C-28OEM-B-1 "VTC oil control solenoid (+)" [low_side_out] is wired to M150-C-28 "Peak Hold Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-15 ↔ M150-C-27OEM-B-15 "VTEC solenoid (VTS)" [low_side_out] is wired to M150-C-27 "Peak Hold Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-18 ↔ M150-C-29OEM-B-18 "Alternator control (ALTC)" [low_side_out] is wired to M150-C-29 "Peak Hold Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-21 ↔ M150-C-30OEM-B-21 "Evap canister purge valve (PCS)" [low_side_out] is wired to M150-C-30 "Peak Hold Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-23 ↔ M150-B-22OEM-B-23 "VTC oil control solenoid (-)" [low_side_out] is wired to M150-B-22 "Peak Hold Injector 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-6 ↔ M150-B-15OEM-B-6 "Radiator fan control (FANC)" [low_side_out] is wired to M150-B-15 "Low Side Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-B-7 ↔ M150-B-23OEM-B-7 "Reverse lockout solenoid (RVS, Type-S)" [low_side_out] is wired to M150-B-23 "Peak Hold Injector 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-E-1 ↔ M150-B-8OEM-E-1 "Immobilizer fuel pump relay (IMO FPR)" [low_side_out] is wired to M150-B-8 "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-E-18 ↔ M150-B-14OEM-E-18 "A/C clutch relay (ACC)" [low_side_out] is wired to M150-B-14 "Low Side Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-E-21 ↔ M150-B-24OEM-E-21 "Evap vent shut valve (VSV)" [low_side_out] is wired to M150-B-24 "Peak Hold Injector 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-E-31 ↔ M150-B-25OEM-E-31 "Malfunction indicator lamp (MIL)" [low_side_out] is wired to M150-B-25 "Peak Hold Injector 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-E-7 ↔ M150-B-9OEM-E-7 "Main relay control (MRLY)" [low_side_out] is wired to M150-B-9 "Low Side Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-E-8 ↔ M150-C-21OEM-E-8 "A/F sensor heater relay control (AFSHTCR)" [low_side_out] is wired to M150-C-21 "Peak Hold Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM10 optional OEM pins are not mapped: OEM-A-16 A/F sensor - (AFS-, wideband Vs); OEM-A-22 A/F sensor heater supply (AFSHTC+); OEM-A-6 A/F sensor + (AFS+, wideband Ip); OEM-E-23 K-line (diagnostic); OEM-E-24 Multiplex communication (SEFMJ); OEM-E-26 Engine speed pulse / tacho (NEP); OEM-E-27 Immobilizer code (IMOCD); OEM-E-29 Service check signal (SCS); OEM-E-30 Write enable signal (WEN); OEM-E-9 Ignition switch signal (IG1)

Accepted (0)

CodeSubjectReasonBy

Notes

Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-E 9: Ignition switch signal (IG1): key-on 12 V sense — optional in a swap (the main relay is energized from keyed 12 V, not from this pin); MoTeC M150 has no dedicated key-on input - OEM-E 26: Engine speed pulse / tacho (NEP): no free tacho/frequency_out/low_side/ls_hs on MoTeC M150 - OEM-A 6: A/F sensor + (AFS+, wideband Ip): no free wb_ip on MoTeC M150 - OEM-A 16: A/F sensor - (AFS-, wideband Vs): no free wb_vs on MoTeC M150 - OEM-A 22: A/F sensor heater supply (AFSHTC+): no free heater_feed on MoTeC M150 - OEM-E 23: K-line (diagnostic): no free k_line on MoTeC M150 - OEM-E 24: Multiplex communication (SEFMJ): no free k_line on MoTeC M150 - OEM-E 27: Immobilizer code (IMOCD): not classified in the library; wire by hand - OEM-E 29: Service check signal (SCS): not classified in the library; wire by hand - OEM-E 30: Write enable signal (WEN): not classified in the library; wire by hand

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docLink: CIVICLink K20X (HC20X) DC5 installation manualhttps://linkecu.com/documentation/237-4000%20DC5.pdfarchive2026-10-058a1a71301571
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
3forumFFS TechNet: K-series 02-06 RSX ECU pin diagram (Helm)https://ff-squad.com/technet2/k-series-02-06-rsx-ecu-pin-diagram/archive2026-10-05b2b85002666e