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Chevrolet Corvette C6 2005-13 (LS2/LS3/LS7) → MoTeC M800 universal (auto)

Chevrolet Corvette C6 2005-13 (LS2/LS3/LS7) — MoTeC — M800
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-20

Before you start

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

Statusdraft · not yet verified: nobody has reported building and running this harness
Open errors4: read the Findings page before cutting any wire
Size of the job80 wires · 11 connectors · 3 part lines
ToolsCrimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
Terminals3-1447221-4
Order of work1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up.

Build checklist

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

WireFromToGaugeColourCutLabelCrimp ACrimp BPin APin BContinuity
W1OEM-X1-19SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-X1-47SP-14V-10.85☐☐☐☐☐☐☐
W3NEW-KEYON-1MAIN-R-COIL+0.5☐☐☐☐☐☐☐
W4NEW-BATT-1MAIN-R-IN0.85☐☐☐☐☐☐☐
W5MAIN-R-COIL-SP-GND-10.5☐☐☐☐☐☐☐
W6MAIN-R-OUTM800-A-260.85☐☐☐☐☐☐☐
W7OEM-X1-73SP-GND-10.85☐☐☐☐☐☐☐
W8OEM-X2-78SP-GND-10.85☐☐☐☐☐☐☐
W9OEM-X2-79SP-GND-10.85☐☐☐☐☐☐☐
W10SP-GND-1M800-A-100.85☐☐☐☐☐☐☐
W11SP-GND-1M800-A-110.85☐☐☐☐☐☐☐
W12OEM-X1-11SP-0V-10.5☐☐☐☐☐☐☐
W13OEM-X1-13SP-0V-10.5☐☐☐☐☐☐☐
W14OEM-X1-23SP-0V-10.5☐☐☐☐☐☐☐
W15OEM-X1-30SP-0V-10.5☐☐☐☐☐☐☐
W16OEM-X1-31SP-0V-10.5☐☐☐☐☐☐☐
W17OEM-X1-38SP-0V-10.5☐☐☐☐☐☐☐
W18OEM-X1-49SP-0V-10.5☐☐☐☐☐☐☐
W19OEM-X2-22SP-0V-10.5☐☐☐☐☐☐☐
W20OEM-X2-34SP-0V-10.5☐☐☐☐☐☐☐
W21OEM-X2-35SP-0V-10.5☐☐☐☐☐☐☐
W22OEM-X2-52SP-0V-10.5☐☐☐☐☐☐☐
W23OEM-X2-53SP-0V-10.5☐☐☐☐☐☐☐
W24OEM-X2-56SP-0V-10.5☐☐☐☐☐☐☐
W25OEM-X2-60SP-0V-10.5☐☐☐☐☐☐☐
W26OEM-X2-66SP-0V-10.5☐☐☐☐☐☐☐
W27OEM-X2-69SP-0V-10.5☐☐☐☐☐☐☐
W28SP-0V-1M800-B-140.5☐☐☐☐☐☐☐
W29SP-0V-1M800-B-150.5☐☐☐☐☐☐☐
W30SP-0V-1M800-B-160.5☐☐☐☐☐☐☐
W31OEM-X1-33SP-5V1-10.5☐☐☐☐☐☐☐
W32OEM-X1-34SP-5V1-10.5☐☐☐☐☐☐☐
W33OEM-X1-36SP-5V1-10.5☐☐☐☐☐☐☐
W34OEM-X1-56SP-5V1-10.5☐☐☐☐☐☐☐
W35OEM-X2-2SP-5V1-10.5☐☐☐☐☐☐☐
W36OEM-X2-3SP-5V1-10.5☐☐☐☐☐☐☐
W37OEM-X2-41SP-5V1-10.5☐☐☐☐☐☐☐
W38OEM-X2-43SP-5V1-10.5☐☐☐☐☐☐☐
W39OEM-X2-44SP-5V1-10.5☐☐☐☐☐☐☐
W40SP-5V1-1M800-A-20.5☐☐☐☐☐☐☐
W41OEM-X2-68M800-B-10.5☐☐☐☐☐☐☐
W42OEM-X2-64M800-B-20.5☐☐☐☐☐☐☐
W43OEM-X2-70M800-A-30.5☐☐☐☐☐☐☐
W44OEM-X2-73M800-A-40.5☐☐☐☐☐☐☐
W45OEM-X2-77M800-A-50.5☐☐☐☐☐☐☐
W46OEM-X2-76M800-A-60.5☐☐☐☐☐☐☐
W47OEM-X2-75M800-A-70.5☐☐☐☐☐☐☐
W48OEM-X2-74M800-A-80.5☐☐☐☐☐☐☐
W49OEM-X2-20M800-A-190.5☐☐☐☐☐☐☐
W50OEM-X2-37M800-A-200.5☐☐☐☐☐☐☐
W51OEM-X2-38M800-A-210.5☐☐☐☐☐☐☐
W52OEM-X2-39M800-A-220.5☐☐☐☐☐☐☐
W53OEM-X2-18M800-A-270.5☐☐☐☐☐☐☐
W54OEM-X2-19M800-A-280.5☐☐☐☐☐☐☐
W55OEM-X2-40M800-A-290.5☐☐☐☐☐☐☐
W56OEM-X2-17M800-A-300.5☐☐☐☐☐☐☐
W57OEM-X1-50M800-A-180.5☐☐☐☐☐☐☐
W58OEM-X1-59M800-A-10.5☐☐☐☐☐☐☐
W59OEM-X1-41M800-A-140.5☐☐☐☐☐☐☐
W60OEM-X2-58M800-A-150.5☐☐☐☐☐☐☐
W61OEM-X1-29M800-A-160.5☐☐☐☐☐☐☐
W62OEM-X2-65M800-A-170.5☐☐☐☐☐☐☐
W63OEM-X1-32M800-A-250.5☐☐☐☐☐☐☐
W64OEM-X2-63M800-B-200.5☐☐☐☐☐☐☐
W65OEM-X2-21M800-B-30.5☐☐☐☐☐☐☐
W66OEM-X1-17M800-A-230.5☐☐☐☐☐☐☐
W67OEM-X1-51M800-A-240.5☐☐☐☐☐☐☐
W68OEM-X1-52M800-A-310.5☐☐☐☐☐☐☐
W69OEM-X1-58M800-A-320.5☐☐☐☐☐☐☐
W70OEM-X1-63M800-A-330.5☐☐☐☐☐☐☐
W71OEM-X1-64M800-A-340.5☐☐☐☐☐☐☐
W72OEM-X1-10M800-B-210.5☐☐☐☐☐☐☐
W73OEM-X1-69M800-B-220.5☐☐☐☐☐☐☐
W74OEM-X1-37M800-B-40.5☐☐☐☐☐☐☐
W75OEM-X1-71M800-B-80.5☐☐☐☐☐☐☐
W76OEM-X1-72M800-B-90.5☐☐☐☐☐☐☐
W77OEM-X1-2M800-B-100.5☐☐☐☐☐☐☐
W78OEM-X1-1M800-B-110.5☐☐☐☐☐☐☐
W79OEM-X1-28M800-B-230.5☐☐☐☐☐☐☐
W80OEM-X1-27M800-B-240.5☐☐☐☐☐☐☐

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
1M800-A-2M800-A-10open (OL)5 V sensor reference must not touch power ground
2OEM-X1-19M800-A-10open (OL)+12 V supply must not touch power ground
3M800-A-10M800-A-26open (OL)power ground must not touch +12 V supply
4M800-A-10NEW-BATT-1open (OL)power ground must not touch +12 V supply
5M800-A-10NEW-KEYON-1open (OL)power ground must not touch +12 V supply
6M800-A-2M800-A-26open (OL)5 V sensor reference must not touch +12 V supply
7M800-A-2NEW-BATT-1open (OL)5 V sensor reference must not touch +12 V supply
8M800-A-2NEW-KEYON-1open (OL)5 V sensor reference must not touch +12 V supply
9M800-B-14M800-A-2open (OL)sensor ground must not touch 5 V sensor reference
10M800-B-14M800-A-26open (OL)sensor ground must not touch +12 V supply
11M800-B-14NEW-BATT-1open (OL)sensor ground must not touch +12 V supply
12M800-B-14NEW-KEYON-1open (OL)sensor ground must not touch +12 V supply
13M800-B-14OEM-X1-19open (OL)sensor ground must not touch +12 V supply
14OEM-X1-19M800-A-2open (OL)+12 V supply must not touch 5 V sensor reference

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

Revisions

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Schematic

M800-AM800-BMAIN-RNEW-BATTNEW-KEYONOEM-X1OEM-X2SP-0VSP-14VSP-5V1SP-GND

Connectors

M800-A

Mating face
M800-A-1 · AUX21M800-A-2 · 5V Engine Sensor Supply2M800-A-3 · IGN13M800-A-4 · IGN24M800-A-5 · IGN35M800-A-6 · IGN46M800-A-7 · IGN57M800-A-8 · IGN68M800-A-9 · 5V Auxiliary Sensor Supply9M800-A-10 · GND Battery Negative10M800-A-11 · GND Battery Negative11M800-A-12 · 8V Engine Sensor Supply12M800-A-13 · 8V Auxiliary Sensor and CAN Supply13M800-A-14 · AV114M800-A-15 · Analog Voltage Input 215M800-A-16 · Analog Voltage Input 316M800-A-17 · Analog Voltage Input 417M800-A-18 · AUX118M800-A-19 · INJ119M800-A-20 · INJ220M800-A-21 · INJ321M800-A-22 · INJ422M800-A-23 · AUX323M800-A-24 · AUX424M800-A-25 · Analog Voltage Input 525M800-A-26 · VBAT Battery Positive26M800-A-27 · INJ527M800-A-28 · INJ628M800-A-29 · INJ729M800-A-30 · INJ830M800-A-31 · AUX531M800-A-32 · AUX632M800-A-33 · AUX733M800-A-34 · AUX834
Wire side
M800-A-1 · AUX21M800-A-2 · 5V Engine Sensor Supply2M800-A-3 · IGN13M800-A-4 · IGN24M800-A-5 · IGN35M800-A-6 · IGN46M800-A-7 · IGN57M800-A-8 · IGN68M800-A-9 · 5V Auxiliary Sensor Supply9M800-A-10 · GND Battery Negative10M800-A-11 · GND Battery Negative11M800-A-12 · 8V Engine Sensor Supply12M800-A-13 · 8V Auxiliary Sensor and CAN Supply13M800-A-14 · AV114M800-A-15 · Analog Voltage Input 215M800-A-16 · Analog Voltage Input 316M800-A-17 · Analog Voltage Input 417M800-A-18 · AUX118M800-A-19 · INJ119M800-A-20 · INJ220M800-A-21 · INJ321M800-A-22 · INJ422M800-A-23 · AUX323M800-A-24 · AUX424M800-A-25 · Analog Voltage Input 525M800-A-26 · VBAT Battery Positive26M800-A-27 · INJ527M800-A-28 · INJ628M800-A-29 · INJ729M800-A-30 · INJ830M800-A-31 · AUX531M800-A-32 · AUX632M800-A-33 · AUX733M800-A-34 · AUX834
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1AUX2—W58—0.5OEM-X1-59———
25V Engine Sensor Supply—W40—0.5SP-5V1-1———
3IGN1—W43—0.5OEM-X2-70———
4IGN2—W44—0.5OEM-X2-73———
5IGN3—W45—0.5OEM-X2-77———
6IGN4—W46—0.5OEM-X2-76———
7IGN5—W47—0.5OEM-X2-75———
8IGN6—W48—0.5OEM-X2-74———
95V Auxiliary Sensor Supply————————
10GND Battery Negative—W10—0.85SP-GND-1———
11GND Battery Negative—W11—0.85SP-GND-1———
128V Engine Sensor Supply————————
138V Auxiliary Sensor and CAN Supply————————
14AV1—W59—0.5OEM-X1-41———
15Analog Voltage Input 2—W60—0.5OEM-X2-58———
16Analog Voltage Input 3—W61—0.5OEM-X1-29———
17Analog Voltage Input 4—W62—0.5OEM-X2-65———
18AUX1—W57—0.5OEM-X1-50———
19INJ1—W49—0.5OEM-X2-20———
20INJ2—W50—0.5OEM-X2-37———
21INJ3—W51—0.5OEM-X2-38———
22INJ4—W52—0.5OEM-X2-39———
23AUX3—W66—0.5OEM-X1-17———
24AUX4—W67—0.5OEM-X1-51———
25Analog Voltage Input 5—W63—0.5OEM-X1-32———
26VBAT Battery Positive—W6—0.85MAIN-R-OUT———
27INJ5—W53—0.5OEM-X2-18———
28INJ6—W54—0.5OEM-X2-19———
29INJ7—W55—0.5OEM-X2-40———
30INJ8—W56—0.5OEM-X2-17———
31AUX5—W68—0.5OEM-X1-52———
32AUX6—W69—0.5OEM-X1-58———
33AUX7—W70—0.5OEM-X1-63———
34AUX8—W71—0.5OEM-X1-64———

M800-B

Mating face
M800-B-1 · Crank Reference Timing Input1M800-B-2 · Cam Sync Timing Input2M800-B-3 · Analog Temperature Input 13M800-B-4 · Analog Temperature Input 24M800-B-5 · Analog Temperature Input 35M800-B-6 · Analog Temperature Input 46M800-B-7 · Analog Temperature Input 57M800-B-8 · Digital Input 18M800-B-9 · Digital Input 29M800-B-10 · Digital Input 310M800-B-11 · Digital Input 411M800-B-12 · Lambda2 Sense Voltage12M800-B-13 · Lambda2 Pump Current13M800-B-14 · 0V Comms Reference14M800-B-15 · 0V Auxiliary Sensor Supply15M800-B-16 · 0V Engine Sensor Supply16M800-B-17 · RS232 Transmit Data17M800-B-18 · RS232 Receive Data18M800-B-19 · Analog Temperature Input 619M800-B-20 · Analog Voltage Input 620M800-B-21 · AV721M800-B-22 · AV822M800-B-23 · CAN Bus High23M800-B-24 · CAN Bus Low24M800-B-25 · Lambda1 Sense Voltage25M800-B-26 · Lambda1 Pump Current26
Wire side
M800-B-1 · Crank Reference Timing Input1M800-B-2 · Cam Sync Timing Input2M800-B-3 · Analog Temperature Input 13M800-B-4 · Analog Temperature Input 24M800-B-5 · Analog Temperature Input 35M800-B-6 · Analog Temperature Input 46M800-B-7 · Analog Temperature Input 57M800-B-8 · Digital Input 18M800-B-9 · Digital Input 29M800-B-10 · Digital Input 310M800-B-11 · Digital Input 411M800-B-12 · Lambda2 Sense Voltage12M800-B-13 · Lambda2 Pump Current13M800-B-14 · 0V Comms Reference14M800-B-15 · 0V Auxiliary Sensor Supply15M800-B-16 · 0V Engine Sensor Supply16M800-B-17 · RS232 Transmit Data17M800-B-18 · RS232 Receive Data18M800-B-19 · Analog Temperature Input 619M800-B-20 · Analog Voltage Input 620M800-B-21 · AV721M800-B-22 · AV822M800-B-23 · CAN Bus High23M800-B-24 · CAN Bus Low24M800-B-25 · Lambda1 Sense Voltage25M800-B-26 · Lambda1 Pump Current26
CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Crank Reference Timing Input—W41—0.5OEM-X2-68———
2Cam Sync Timing Input—W42—0.5OEM-X2-64———
3Analog Temperature Input 1—W65—0.5OEM-X2-21———
4Analog Temperature Input 2—W74—0.5OEM-X1-37———
5Analog Temperature Input 3————————
6Analog Temperature Input 4————————
7Analog Temperature Input 5————————
8Digital Input 1—W75—0.5OEM-X1-71———
9Digital Input 2—W76—0.5OEM-X1-72———
10Digital Input 3—W77—0.5OEM-X1-2———
11Digital Input 4—W78—0.5OEM-X1-1———
12Lambda2 Sense Voltage————————
13Lambda2 Pump Current————————
140V Comms Reference—W28—0.5SP-0V-1———
150V Auxiliary Sensor Supply—W29—0.5SP-0V-1———
160V Engine Sensor Supply—W30—0.5SP-0V-1———
17RS232 Transmit Data————————
18RS232 Receive Data————————
19Analog Temperature Input 6————————
20Analog Voltage Input 6—W64—0.5OEM-X2-63———
21AV7—W72—0.5OEM-X1-10———
22AV8—W73—0.5OEM-X1-69———
23CAN Bus High—W79—0.5OEM-X1-28———
24CAN Bus Low—W80—0.5OEM-X1-27———
25Lambda1 Sense Voltage————————
26Lambda1 Pump Current————————

MAIN-R

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
COIL+Relay coil positive (ignition-switched +12V)—W3—0.5NEW-KEYON-1———
COIL-Relay coil negative (ECU low-side driver)—W5—0.5SP-GND-1———
INRelay contact input (battery + via main fuse)—W4—0.85NEW-BATT-1———
OUTRelay contact output (switched +12V bus)—W6—0.85M800-A-26———

NEW-BATT

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W4—0.85MAIN-R-IN———

NEW-KEYON

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W3—0.5MAIN-R-COIL+———

OEM-X1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Park/Neutral signal (1786)—W78—0.5M800-B-11———
10HO2S signal, bank 1 sensor 2 (post-cat)—W72—0.5M800-B-21———
11HO2S low reference, bank 1 sensor 2—W12—0.5SP-0V-1———
12A/C refrigerant pressure signal————————
13A/C refrigerant pressure sensor low reference (5514)—W13—0.5SP-0V-1———
16Fuel level sensor signal, primary (1589)————————
17High speed cooling fan relay—W66—0.5M800-A-23———
18Accessory wakeup serial data (5985)————————
19Ignition 1 voltage (key hot)—W1—0.85SP-14V-1———
24WD low signal (1694)—W77—0.5M800-B-10———
20Battery positive voltage (batt hot)————————
23APP sensor low reference—W14—0.5SP-0V-1———
24Fuel tank pressure signal————————
27High-speed GMLAN serial data bus - (2501)—W80—0.5M800-B-24———
28High-speed GMLAN serial data bus + (2500)—W79—0.5M800-B-23———
29Accelerator pedal position (APP) sensor 1 signal—W61—0.5M800-A-16———
3Axle switch signal (1695)————————
30APP sensor low reference—W15—0.5SP-0V-1———
31Fuel tank pressure sensor low reference (6049)—W16—0.5SP-0V-1———
32Accelerator pedal position (APP) sensor 2 signal—W63—0.5M800-A-25———
335V reference (fuel tank pressure)—W31—0.5SP-5V1-1———
345V reference (A/C pressure)—W32—0.5SP-5V1-1———
365V reference (APP sensor)—W33—0.5SP-5V1-1———
37Intake air temperature (IAT) signal—W74—0.5M800-B-4———
38Intake air temperature (IAT) low reference—W17—0.5SP-0V-1———
41Mass air flow (MAF) signal—W59—0.5M800-A-14———
47Ignition 1 voltage (key hot)—W2—0.85SP-14V-1———
48Tachometer output————————
49HO2S low reference, bank 2 sensor 2—W18—0.5SP-0V-1———
50Fuel pump relay control (primary)—W57—0.5M800-A-18———
51Fuel pump relay control (secondary)—W67—0.5M800-A-24———
52Starter enable relay control—W68—0.5M800-A-31———
565V reference (APP sensor)—W34—0.5SP-5V1-1———
57VSS output to ABS (128k)————————
58Low speed cooling fan relay—W69—0.5M800-A-32———
59Powertrain relay coil control (main relay)—W58—0.5M800-A-1———
61EVAP canister vent solenoid————————
63A/C compressor clutch relay—W70—0.5M800-A-33———
64HO2S heater low control, bank 2 sensor 2—W71—0.5M800-A-34———
65HO2S heater low control, bank 1 sensor 2————————
68Malfunction indicator lamp (MIL)————————
69HO2S signal, bank 2 sensor 2 (post-cat)—W73—0.5M800-B-22———
70Secondary fuel level sensor signal (1937)————————
71VSS high signal (manual trans)—W75—0.5M800-B-8———
72VSS low signal (manual trans)—W76—0.5M800-B-9———
73Power ground—W7—0.85SP-GND-1———
9Brake switch signal————————

OEM-X2

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
10Cylinder shutoff solenoid 1 (AFM)————————
11Cylinder shutoff solenoid 4 (AFM)————————
12HO2S heater low control, bank 1 sensor 1————————
13HO2S heater low control, bank 2 sensor 1————————
14Cylinder shutoff solenoid 2 (AFM)————————
16Camshaft actuator solenoid (VVT)————————
17Injector 8—W56—0.5M800-A-30———
18Injector 5—W53—0.5M800-A-27———
19Injector 6—W54—0.5M800-A-28———
25V reference (crankshaft sensor)—W35—0.5SP-5V1-1———
20Injector 1—W49—0.5M800-A-19———
21Engine coolant temperature (ECT) signal—W65—0.5M800-B-3———
22ECT low reference—W19—0.5SP-0V-1———
26Knock sensor 1 signal A————————
27Knock sensor 1 signal B————————
29Knock sensor 2 signal A————————
35V reference (throttle body)—W36—0.5SP-5V1-1———
30Knock sensor 2 signal B————————
32Generator field duty control————————
33Oil level switch signal————————
34Oil pressure low reference—W20—0.5SP-0V-1———
35Throttle body low reference—W21—0.5SP-0V-1———
37Injector 2—W50—0.5M800-A-20———
38Injector 3—W51—0.5M800-A-21———
39Injector 4—W52—0.5M800-A-22———
40Injector 7—W55—0.5M800-A-29———
415V reference (oil pressure)—W37—0.5SP-5V1-1———
435V reference (MAP)—W38—0.5SP-5V1-1———
445V reference (camshaft sensor)—W39—0.5SP-5V1-1———
5Throttle actuator motor − (M−)————————
50Engine oil pressure signal————————
52Camshaft actuator low reference—W22—0.5SP-0V-1———
53MAP low reference—W23—0.5SP-0V-1———
56HO2S low reference, bank 1 sensor 1—W24—0.5SP-0V-1———
57HO2S signal, bank 1 sensor 1 (pre-cat)————————
58Manifold absolute pressure (MAP) signal—W60—0.5M800-A-15———
59HO2S signal, bank 2 sensor 1 (pre-cat)————————
6Throttle actuator motor + (M+)————————
60HO2S low reference, bank 2 sensor 1—W25—0.5SP-0V-1———
61Charge indicator signal————————
63Throttle position sensor 2 signal—W64—0.5M800-B-20———
64Camshaft position signal (4x)—W42—0.5M800-B-2———
65Throttle position sensor 1 signal—W62—0.5M800-A-17———
66Camshaft position low reference—W26—0.5SP-0V-1———
68Crankshaft position signal (58x)—W41—0.5M800-B-1———
69Crankshaft position low reference—W27—0.5SP-0V-1———
70Ignition coil 1 control—W43—0.5M800-A-3———
71Ignition coil 8 control————————
72Ignition coil 7 control————————
73Ignition coil 2 control—W44—0.5M800-A-4———
74Ignition coil 6 control—W48—0.5M800-A-8———
75Ignition coil 5 control—W47—0.5M800-A-7———
76Ignition coil 4 control—W46—0.5M800-A-6———
77Ignition coil 3 control—W45—0.5M800-A-5———
78Coil low reference (odd bank)—W8—0.85SP-GND-1———
79Coil low reference (even bank)—W9—0.85SP-GND-1———
8EVAP canister purge solenoid————————
9Cylinder shutoff solenoid 3 (AFM)————————

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W12—0.5OEM-X1-11———
1——W13—0.5OEM-X1-13———
1——W14—0.5OEM-X1-23———
1——W15—0.5OEM-X1-30———
1——W16—0.5OEM-X1-31———
1——W17—0.5OEM-X1-38———
1——W18—0.5OEM-X1-49———
1——W19—0.5OEM-X2-22———
1——W20—0.5OEM-X2-34———
1——W21—0.5OEM-X2-35———
1——W22—0.5OEM-X2-52———
1——W23—0.5OEM-X2-53———
1——W24—0.5OEM-X2-56———
1——W25—0.5OEM-X2-60———
1——W26—0.5OEM-X2-66———
1——W27—0.5OEM-X2-69———
1——W28—0.5M800-B-14———
1——W29—0.5M800-B-15———
1——W30—0.5M800-B-16———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-X1-19———
1——W2—0.85OEM-X1-47———

SP-5V1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W31—0.5OEM-X1-33———
1——W32—0.5OEM-X1-34———
1——W33—0.5OEM-X1-36———
1——W34—0.5OEM-X1-56———
1——W35—0.5OEM-X2-2———
1——W36—0.5OEM-X2-3———
1——W37—0.5OEM-X2-41———
1——W38—0.5OEM-X2-43———
1——W39—0.5OEM-X2-44———
1——W40—0.5M800-A-2———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W5—0.5MAIN-R-COIL-———
1——W7—0.85OEM-X1-73———
1——W8—0.85OEM-X2-78———
1——W9—0.85OEM-X2-79———
1——W10—0.85M800-A-10———
1——W11—0.85M800-A-11———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-X1-1Park/Neutral signal (1786)digital_inM800-B-11Digital Input 4digital_insingle_source
OEM-X1-10HO2S signal, bank 1 sensor 2 (post-cat)lambda_nb_inM800-B-21AV7analog_insingle_source
OEM-X1-11HO2S low reference, bank 1 sensor 2sensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-12A/C refrigerant pressure signalanalog_in———corroborated
OEM-X1-13A/C refrigerant pressure sensor low reference (5514)sensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-16Fuel level sensor signal, primary (1589)analog_in———single_source
OEM-X1-17High speed cooling fan relaylow_side_outM800-A-23AUX3switch_outcorroborated
OEM-X1-18Accessory wakeup serial data (5985)serial———single_source
OEM-X1-19Ignition 1 voltage (key hot)power_in———single_source
OEM-X1-24WD low signal (1694)digital_inM800-B-10Digital Input 3digital_insingle_source
OEM-X1-20Battery positive voltage (batt hot)power_in———single_source
OEM-X1-23APP sensor low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-24Fuel tank pressure signalanalog_in———corroborated
OEM-X1-27High-speed GMLAN serial data bus - (2501)can_lM800-B-24CAN Bus Lowcan_lsingle_source
OEM-X1-28High-speed GMLAN serial data bus + (2500)can_hM800-B-23CAN Bus Highcan_hsingle_source
OEM-X1-29Accelerator pedal position (APP) sensor 1 signalanalog_inM800-A-16Analog Voltage Input 3analog_insingle_source
OEM-X1-3Axle switch signal (1695)digital_in———single_source
OEM-X1-30APP sensor low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-31Fuel tank pressure sensor low reference (6049)sensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-32Accelerator pedal position (APP) sensor 2 signalanalog_inM800-A-25Analog Voltage Input 5analog_insingle_source
OEM-X1-335V reference (fuel tank pressure)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X1-345V reference (A/C pressure)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X1-365V reference (APP sensor)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X1-37Intake air temperature (IAT) signaltemp_inM800-B-4Analog Temperature Input 2temp_incorroborated
OEM-X1-38Intake air temperature (IAT) low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-41Mass air flow (MAF) signalanalog_inM800-A-14AV1analog_incorroborated
OEM-X1-47Ignition 1 voltage (key hot)power_in———single_source
OEM-X1-48Tachometer outputtacho_out———corroborated
OEM-X1-49HO2S low reference, bank 2 sensor 2sensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X1-50Fuel pump relay control (primary)low_side_outM800-A-18AUX1switch_outcorroborated
OEM-X1-51Fuel pump relay control (secondary)low_side_outM800-A-24AUX4switch_outcorroborated
OEM-X1-52Starter enable relay controllow_side_outM800-A-31AUX5switch_outcorroborated
OEM-X1-565V reference (APP sensor)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X1-57VSS output to ABS (128k)tacho_out———corroborated
OEM-X1-58Low speed cooling fan relaylow_side_outM800-A-32AUX6switch_outcorroborated
OEM-X1-59Powertrain relay coil control (main relay)low_side_outM800-A-1AUX2switch_outcorroborated
OEM-X1-61EVAP canister vent solenoidlow_side_out———corroborated
OEM-X1-63A/C compressor clutch relaylow_side_outM800-A-33AUX7switch_outcorroborated
OEM-X1-64HO2S heater low control, bank 2 sensor 2low_side_outM800-A-34AUX8switch_outsingle_source
OEM-X1-65HO2S heater low control, bank 1 sensor 2low_side_out———single_source
OEM-X1-68Malfunction indicator lamp (MIL)low_side_out———corroborated
OEM-X1-69HO2S signal, bank 2 sensor 2 (post-cat)lambda_nb_inM800-B-22AV8analog_insingle_source
OEM-X1-70Secondary fuel level sensor signal (1937)analog_in———single_source
OEM-X1-71VSS high signal (manual trans)digital_inM800-B-8Digital Input 1digital_incorroborated
OEM-X1-72VSS low signal (manual trans)digital_inM800-B-9Digital Input 2digital_incorroborated
OEM-X1-73Power groundgroundM800-A-10 + M800-A-11 + MAIN-R-COIL-GND Battery Negative + GND Battery Negative + Relay coil negative (ECU low-side driver)ground + loadsingle_source
OEM-X1-9Brake switch signaldigital_in———corroborated
OEM-X2-10Cylinder shutoff solenoid 1 (AFM)low_side_out———corroborated
OEM-X2-11Cylinder shutoff solenoid 4 (AFM)low_side_out———corroborated
OEM-X2-12HO2S heater low control, bank 1 sensor 1low_side_out———single_source
OEM-X2-13HO2S heater low control, bank 2 sensor 1low_side_out———single_source
OEM-X2-14Cylinder shutoff solenoid 2 (AFM)low_side_out———corroborated
OEM-X2-16Camshaft actuator solenoid (VVT)low_side_out———corroborated
OEM-X2-17Injector 8injector_outM800-A-30INJ8injector_outsingle_source
OEM-X2-18Injector 5injector_outM800-A-27INJ5injector_outsingle_source
OEM-X2-19Injector 6injector_outM800-A-28INJ6injector_outsingle_source
OEM-X2-25V reference (crankshaft sensor)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X2-20Injector 1injector_outM800-A-19INJ1injector_outsingle_source
OEM-X2-21Engine coolant temperature (ECT) signaltemp_inM800-B-3Analog Temperature Input 1temp_incorroborated
OEM-X2-22ECT low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-26Knock sensor 1 signal Aknock_in———corroborated
OEM-X2-27Knock sensor 1 signal Bknock_in———single_source
OEM-X2-29Knock sensor 2 signal Aknock_in———corroborated
OEM-X2-35V reference (throttle body)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X2-30Knock sensor 2 signal Bknock_in———single_source
OEM-X2-32Generator field duty controllow_side_out———corroborated
OEM-X2-33Oil level switch signaldigital_in———corroborated
OEM-X2-34Oil pressure low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-35Throttle body low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-37Injector 2injector_outM800-A-20INJ2injector_outsingle_source
OEM-X2-38Injector 3injector_outM800-A-21INJ3injector_outsingle_source
OEM-X2-39Injector 4injector_outM800-A-22INJ4injector_outsingle_source
OEM-X2-40Injector 7injector_outM800-A-29INJ7injector_outsingle_source
OEM-X2-415V reference (oil pressure)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X2-435V reference (MAP)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X2-445V reference (camshaft sensor)vrefM800-A-25V Engine Sensor Supplyvrefsingle_source
OEM-X2-5Throttle actuator motor − (M−)hbridge_out———corroborated
OEM-X2-50Engine oil pressure signalanalog_in———corroborated
OEM-X2-52Camshaft actuator low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-53MAP low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-56HO2S low reference, bank 1 sensor 1sensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-57HO2S signal, bank 1 sensor 1 (pre-cat)lambda_nb_in———single_source
OEM-X2-58Manifold absolute pressure (MAP) signalanalog_inM800-A-15Analog Voltage Input 2analog_incorroborated
OEM-X2-59HO2S signal, bank 2 sensor 1 (pre-cat)lambda_nb_in———single_source
OEM-X2-6Throttle actuator motor + (M+)hbridge_out———corroborated
OEM-X2-60HO2S low reference, bank 2 sensor 1sensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-61Charge indicator signallow_side_out———corroborated
OEM-X2-63Throttle position sensor 2 signalanalog_inM800-B-20Analog Voltage Input 6analog_insingle_source
OEM-X2-64Camshaft position signal (4x)trigger_inM800-B-2Cam Sync Timing Inputtrigger_insingle_source
OEM-X2-65Throttle position sensor 1 signalanalog_inM800-A-17Analog Voltage Input 4analog_insingle_source
OEM-X2-66Camshaft position low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-68Crankshaft position signal (58x)trigger_inM800-B-1Crank Reference Timing Inputtrigger_insingle_source
OEM-X2-69Crankshaft position low referencesensor_groundM800-B-14 + M800-B-15 + M800-B-160V Comms Reference + 0V Auxiliary Sensor Supply + 0V Engine Sensor Supplysensor_groundsingle_source
OEM-X2-70Ignition coil 1 controlignition_outM800-A-3IGN1ignition_outsingle_source
OEM-X2-71Ignition coil 8 controlignition_out———single_source
OEM-X2-72Ignition coil 7 controlignition_out———single_source
OEM-X2-73Ignition coil 2 controlignition_outM800-A-4IGN2ignition_outsingle_source
OEM-X2-74Ignition coil 6 controlignition_outM800-A-8IGN6ignition_outsingle_source
OEM-X2-75Ignition coil 5 controlignition_outM800-A-7IGN5ignition_outsingle_source
OEM-X2-76Ignition coil 4 controlignition_outM800-A-6IGN4ignition_outsingle_source
OEM-X2-77Ignition coil 3 controlignition_outM800-A-5IGN3ignition_outsingle_source
OEM-X2-78Coil low reference (odd bank)groundM800-A-10 + M800-A-11 + MAIN-R-COIL-GND Battery Negative + GND Battery Negative + Relay coil negative (ECU low-side driver)ground + loadsingle_source
OEM-X2-79Coil low reference (even bank)groundM800-A-10 + M800-A-11 + MAIN-R-COIL-GND Battery Negative + GND Battery Negative + Relay coil negative (ECU low-side driver)ground + loadsingle_source
OEM-X2-8EVAP canister purge solenoidlow_side_out———corroborated
OEM-X2-9Cylinder shutoff solenoid 3 (AFM)low_side_out———corroborated

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-X1-19SP-14V-10.85no routeIgnition 1 voltage (key hot)—
W2OEM-X1-47SP-14V-10.85no routeIgnition 1 voltage (key hot)—
W3NEW-KEYON-1MAIN-R-COIL+0.5no routeRelay coil positive (ignition-switched +12V)—
W4NEW-BATT-1MAIN-R-IN0.85no routeRelay contact input (battery + via main fuse)—
W5MAIN-R-COIL-SP-GND-10.5no routeRelay coil negative (ECU low-side driver)—
W6MAIN-R-OUTM800-A-260.85no routeRelay contact output (switched +12V bus)—
W7OEM-X1-73SP-GND-10.85no routePower ground—
W8OEM-X2-78SP-GND-10.85no routeCoil low reference (odd bank)—
W9OEM-X2-79SP-GND-10.85no routeCoil low reference (even bank)—
W10SP-GND-1M800-A-100.85no routeGND Battery Negative—
W11SP-GND-1M800-A-110.85no routeGND Battery Negative—
W12OEM-X1-11SP-0V-10.5no routeHO2S low reference, bank 1 sensor 2—
W13OEM-X1-13SP-0V-10.5no routeA/C refrigerant pressure sensor low reference (5514)—
W14OEM-X1-23SP-0V-10.5no routeAPP sensor low reference—
W15OEM-X1-30SP-0V-10.5no routeAPP sensor low reference—
W16OEM-X1-31SP-0V-10.5no routeFuel tank pressure sensor low reference (6049)—
W17OEM-X1-38SP-0V-10.5no routeIntake air temperature (IAT) low reference—
W18OEM-X1-49SP-0V-10.5no routeHO2S low reference, bank 2 sensor 2—
W19OEM-X2-22SP-0V-10.5no routeECT low reference—
W20OEM-X2-34SP-0V-10.5no routeOil pressure low reference—
W21OEM-X2-35SP-0V-10.5no routeThrottle body low reference—
W22OEM-X2-52SP-0V-10.5no routeCamshaft actuator low reference—
W23OEM-X2-53SP-0V-10.5no routeMAP low reference—
W24OEM-X2-56SP-0V-10.5no routeHO2S low reference, bank 1 sensor 1—
W25OEM-X2-60SP-0V-10.5no routeHO2S low reference, bank 2 sensor 1—
W26OEM-X2-66SP-0V-10.5no routeCamshaft position low reference—
W27OEM-X2-69SP-0V-10.5no routeCrankshaft position low reference—
W28SP-0V-1M800-B-140.5no route0V Comms Reference—
W29SP-0V-1M800-B-150.5no route0V Auxiliary Sensor Supply—
W30SP-0V-1M800-B-160.5no route0V Engine Sensor Supply—
W31OEM-X1-33SP-5V1-10.5no route5V reference (fuel tank pressure)—
W32OEM-X1-34SP-5V1-10.5no route5V reference (A/C pressure)—
W33OEM-X1-36SP-5V1-10.5no route5V reference (APP sensor)—
W34OEM-X1-56SP-5V1-10.5no route5V reference (APP sensor)—
W35OEM-X2-2SP-5V1-10.5no route5V reference (crankshaft sensor)—
W36OEM-X2-3SP-5V1-10.5no route5V reference (throttle body)—
W37OEM-X2-41SP-5V1-10.5no route5V reference (oil pressure)—
W38OEM-X2-43SP-5V1-10.5no route5V reference (MAP)—
W39OEM-X2-44SP-5V1-10.5no route5V reference (camshaft sensor)—
W40SP-5V1-1M800-A-20.5no route5V Engine Sensor Supply—
W41OEM-X2-68M800-B-10.5no routeCrankshaft position signal (58x)—
W42OEM-X2-64M800-B-20.5no routeCamshaft position signal (4x)—
W43OEM-X2-70M800-A-30.5no routeIgnition coil 1 control—
W44OEM-X2-73M800-A-40.5no routeIgnition coil 2 control—
W45OEM-X2-77M800-A-50.5no routeIgnition coil 3 control—
W46OEM-X2-76M800-A-60.5no routeIgnition coil 4 control—
W47OEM-X2-75M800-A-70.5no routeIgnition coil 5 control—
W48OEM-X2-74M800-A-80.5no routeIgnition coil 6 control—
W49OEM-X2-20M800-A-190.5no routeInjector 1—
W50OEM-X2-37M800-A-200.5no routeInjector 2—
W51OEM-X2-38M800-A-210.5no routeInjector 3—
W52OEM-X2-39M800-A-220.5no routeInjector 4—
W53OEM-X2-18M800-A-270.5no routeInjector 5—
W54OEM-X2-19M800-A-280.5no routeInjector 6—
W55OEM-X2-40M800-A-290.5no routeInjector 7—
W56OEM-X2-17M800-A-300.5no routeInjector 8—
W57OEM-X1-50M800-A-180.5no routeFuel pump relay control (primary)—
W58OEM-X1-59M800-A-10.5no routePowertrain relay coil control (main relay)—
W59OEM-X1-41M800-A-140.5no routeMass air flow (MAF) signal—
W60OEM-X2-58M800-A-150.5no routeManifold absolute pressure (MAP) signal—
W61OEM-X1-29M800-A-160.5no routeAccelerator pedal position (APP) sensor 1 signal—
W62OEM-X2-65M800-A-170.5no routeThrottle position sensor 1 signal—
W63OEM-X1-32M800-A-250.5no routeAccelerator pedal position (APP) sensor 2 signal—
W64OEM-X2-63M800-B-200.5no routeThrottle position sensor 2 signal—
W65OEM-X2-21M800-B-30.5no routeEngine coolant temperature (ECT) signal—
W66OEM-X1-17M800-A-230.5no routeHigh speed cooling fan relay—
W67OEM-X1-51M800-A-240.5no routeFuel pump relay control (secondary)—
W68OEM-X1-52M800-A-310.5no routeStarter enable relay control—
W69OEM-X1-58M800-A-320.5no routeLow speed cooling fan relay—
W70OEM-X1-63M800-A-330.5no routeA/C compressor clutch relay—
W71OEM-X1-64M800-A-340.5no routeHO2S heater low control, bank 2 sensor 2—
W72OEM-X1-10M800-B-210.5no routeHO2S signal, bank 1 sensor 2 (post-cat)—
W73OEM-X1-69M800-B-220.5no routeHO2S signal, bank 2 sensor 2 (post-cat)—
W74OEM-X1-37M800-B-40.5no routeIntake air temperature (IAT) signal—
W75OEM-X1-71M800-B-80.5no routeVSS high signal (manual trans)—
W76OEM-X1-72M800-B-90.5no routeVSS low signal (manual trans)—
W77OEM-X1-2M800-B-100.5no route4WD low signal (1694)—
W78OEM-X1-1M800-B-110.5no routePark/Neutral signal (1786)—
W79OEM-X1-28M800-B-230.5no routeHigh-speed GMLAN serial data bus + (2500)—
W80OEM-X1-27M800-B-240.5no routeHigh-speed GMLAN serial data bus - (2501)—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit
connector3-1437290-7TESuperseal 1.0 26-way plug1.000ea
connector4-1437290-0TESuperseal 1.0 34-way plug, Key 11.000ea
terminal3-1447221-4TESuperseal 1.0 socket terminal, 20 AWG (0.5 sq mm)47.000ea

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (13)

SeverityCodeSubjectMessage
errorREQUIRED_UNMAPPEDOEM-X2-5Required OEM function "Throttle actuator motor − (M−)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-X2-6Required OEM function "Throttle actuator motor + (M+)" (hbridge_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-X2-71Required OEM function "Ignition coil 8 control" (ignition_out) is not connected to the new ECU.
errorREQUIRED_UNMAPPEDOEM-X2-72Required OEM function "Ignition coil 7 control" (ignition_out) is not connected to the new ECU.
infoNET_FAMILYOEM-X1-17 ↔ M800-A-23OEM-X1-17 "High speed cooling fan relay" [low_side_out] is wired to M800-A-23 "AUX3" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-50 ↔ M800-A-18OEM-X1-50 "Fuel pump relay control (primary)" [low_side_out] is wired to M800-A-18 "AUX1" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-51 ↔ M800-A-24OEM-X1-51 "Fuel pump relay control (secondary)" [low_side_out] is wired to M800-A-24 "AUX4" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-52 ↔ M800-A-31OEM-X1-52 "Starter enable relay control" [low_side_out] is wired to M800-A-31 "AUX5" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-58 ↔ M800-A-32OEM-X1-58 "Low speed cooling fan relay" [low_side_out] is wired to M800-A-32 "AUX6" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-59 ↔ M800-A-1OEM-X1-59 "Powertrain relay coil control (main relay)" [low_side_out] is wired to M800-A-1 "AUX2" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-63 ↔ M800-A-33OEM-X1-63 "A/C compressor clutch relay" [low_side_out] is wired to M800-A-33 "AUX7" [switch_out]. Configure this output as low side.
infoNET_FAMILYOEM-X1-64 ↔ M800-A-34OEM-X1-64 "HO2S heater low control, bank 2 sensor 2" [low_side_out] is wired to M800-A-34 "AUX8" [switch_out]. Configure this output as low side.
infoUNMAPPEDOEM30 optional OEM pins are not mapped: OEM-X1-12 A/C refrigerant pressure signal; OEM-X1-16 Fuel level sensor signal, primary (1589); OEM-X1-18 Accessory wakeup serial data (5985); OEM-X1-24 Fuel tank pressure signal; OEM-X1-3 Axle switch signal (1695); OEM-X1-48 Tachometer output; OEM-X1-57 VSS output to ABS (128k); OEM-X1-61 EVAP canister vent solenoid; OEM-X1-65 HO2S heater low control, bank 1 sensor 2; OEM-X1-68 Malfunction indicator lamp (MIL); OEM-X1-70 Secondary fuel level sensor signal (1937); OEM-X1-9 Brake switch signal; OEM-X2-10 Cylinder shutoff solenoid 1 (AFM); OEM-X2-11 Cylinder shutoff solenoid 4 (AFM); OEM-X2-12 HO2S heater low control, bank 1 sensor 1; OEM-X2-13 HO2S heater low control, bank 2 sensor 1; OEM-X2-14 Cylinder shutoff solenoid 2 (AFM); OEM-X2-16 Camshaft actuator solenoid (VVT); OEM-X2-26 Knock sensor 1 signal A; OEM-X2-27 Knock sensor 1 signal B; OEM-X2-29 Knock sensor 2 signal A; OEM-X2-30 Knock sensor 2 signal B; OEM-X2-32 Generator field duty control; OEM-X2-33 Oil level switch signal; OEM-X2-50 Engine oil pressure signal; OEM-X2-57 HO2S signal, bank 1 sensor 1 (pre-cat); OEM-X2-59 HO2S signal, bank 2 sensor 1 (pre-cat); OEM-X2-61 Charge indicator signal; OEM-X2-8 EVAP canister purge solenoid; OEM-X2-9 Cylinder shutoff solenoid 3 (AFM)

Accepted (1)

CodeSubjectReasonBy
REQUIRED_UNMAPPEDOEM-X1-20Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed.mapping-proposal

Notes

Fit check: unconfirmed. Confirm these before building: - Needs CAN (GM E38 (C6 Corvette)); not documented for this ECU - Trigger pattern for GM LS not found in the ECU's docs (No documented M800 OEM preset.) - Only 6 ignition outputs for 8 cylinders: wasted spark (pair coils per firing order) Auto-mapped by auto_map() from the library pin data on 2026-10-20. Review every wire against both manuals before building. Open items: - OEM-X2 72: Ignition coil 7 control: no free ignition output on MoTeC M800 - OEM-X2 71: Ignition coil 8 control: no free ignition output on MoTeC M800 - OEM-X2 5: Throttle actuator motor − (M−): needs a paired H-bridge on MoTeC M800 - OEM-X2 6: Throttle actuator motor + (M+): needs a paired H-bridge on MoTeC M800 Not wired: - OEM-X1 20: Battery positive voltage (batt hot): MoTeC M800 has no battery-constant memory input; not needed - OEM-X2 26: Knock sensor 1 signal A: no free knock input on MoTeC M800 - OEM-X2 27: Knock sensor 1 signal B: no free knock input on MoTeC M800 - OEM-X2 29: Knock sensor 2 signal A: no free knock input on MoTeC M800 - OEM-X2 30: Knock sensor 2 signal B: no free knock input on MoTeC M800 - OEM-X1 65: HO2S heater low control, bank 1 sensor 2: no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M800 - OEM-X2 12: HO2S heater low control, bank 1 sensor 1: no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M800 - OEM-X2 13: HO2S heater low control, bank 2 sensor 1: no free heater_low_side/low_side/relay_control/ls_hs/injector on MoTeC M800 - OEM-X2 10: Cylinder shutoff solenoid 1 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 14: Cylinder shutoff solenoid 2 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 9: Cylinder shutoff solenoid 3 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 11: Cylinder shutoff solenoid 4 (AFM): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X1 61: EVAP canister vent solenoid: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X1 68: Malfunction indicator lamp (MIL): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 16: Camshaft actuator solenoid (VVT): no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 32: Generator field duty control: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 61: Charge indicator signal: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X2 8: EVAP canister purge solenoid: no free low_side/relay_control/heater_low_side/ls_hs/injector on MoTeC M800 - OEM-X1 48: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MoTeC M800 - OEM-X1 57: VSS output to ABS (128k): no free frequency_out/tacho/low_side/ls_hs on MoTeC M800 - OEM-X2 57: HO2S signal, bank 1 sensor 1 (pre-cat): no free o2_narrowband/analog_0_5 on MoTeC M800 - OEM-X2 59: HO2S signal, bank 2 sensor 1 (pre-cat): no free o2_narrowband/analog_0_5 on MoTeC M800 - OEM-X1 12: A/C refrigerant pressure signal: no free analog_0_5 on MoTeC M800 - OEM-X1 16: Fuel level sensor signal, primary (1589): no free analog_0_5 on MoTeC M800 - OEM-X1 24: Fuel tank pressure signal: no free analog_0_5 on MoTeC M800 - OEM-X1 70: Secondary fuel level sensor signal (1937): no free analog_0_5 on MoTeC M800 - OEM-X2 50: Engine oil pressure signal: no free analog_0_5 on MoTeC M800 - OEM-X1 3: Axle switch signal (1695): no free switch_in/frequency_in/analog_0_5 on MoTeC M800 - OEM-X1 9: Brake switch signal: no free switch_in/frequency_in/analog_0_5 on MoTeC M800 - OEM-X2 33: Oil level switch signal: no free switch_in/frequency_in/analog_0_5 on MoTeC M800 - OEM-X1 18: Accessory wakeup serial data (5985): no free k_line on MoTeC M800

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docEmtron SL4/SL6/SL8 pinout pageshttps://docs.emtronaustralia.com.au/engine-management/wiring/index.htmlarchive2026-10-05e52b3da9996a
4vendor_docMaxxECU webhelp: Wiring — plug-in ECU Chevrolet Corvette C6 (GM E38 ECM)http://www.maxxecu.com/webhelp/wirings-pluginecu-chevrolet_corvette_c6_e38_ecm.html———
4vendor_docMoTeC M400/M600/M800/M880 Manual — Appendix L: Pin list by Functionhttps://starracecars.com/wp-content/uploads/resources/M400_M600_M800_M880_Manual_A5.pdfarchive2026-10-05b69bb8ffb674
4vendor_docMoTeC M800 OEM WRX56 Installationhttps://motec.com.auarchive2026-10-052ca4be92bb65
3forumrusEFI Mazda Miata 2002 engine wiringhttps://github.com/rusefi/rusefi/wiki/Mazda-Miata-2002archive2026-10-05cc3cae670408
2community_copylt1swap.com: E38 ECM Connector Pinoutshttps://lt1swap.com/E38 ECM Connector Pinouts.htm———