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VW Golf Mk4 1.8T 20v (AUM, Bosch ME7.5) DBW → Link G5 Voodoo Pro V2 (auto)

VW Golf Mk4 1.8T 20v (AUM, Bosch ME7.5) DBW — Link — G5 Voodoo Pro V2
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-12

Before you start

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

Statusproposal · not yet verified: nobody has reported building and running this harness
Open errorsnone
Size of the job68 wires · 8 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-T121-121SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-T121-21SP-14V-10.85☐☐☐☐☐☐☐
W3SP-14V-1G5VOODOOPROV-A-A50.85☐☐☐☐☐☐☐
W4SP-14V-1G5VOODOOPROV-B-B50.85☐☐☐☐☐☐☐
W5OEM-T121-1SP-GND-10.85☐☐☐☐☐☐☐
W6OEM-T121-2SP-GND-10.85☐☐☐☐☐☐☐
W7SP-GND-1G5VOODOOPROV-A-A250.85☐☐☐☐☐☐☐
W8SP-GND-1G5VOODOOPROV-A-A340.85☐☐☐☐☐☐☐
W9SP-GND-1G5VOODOOPROV-B-B250.85☐☐☐☐☐☐☐
W10SP-GND-1G5VOODOOPROV-B-B340.85☐☐☐☐☐☐☐
W11SP-GND-1G5VOODOOPROV-E-E210.85☐☐☐☐☐☐☐
W12SP-GND-1G5VOODOOPROV-E-E70.85☐☐☐☐☐☐☐
W13OEM-T121-108SP-0V-10.5☐☐☐☐☐☐☐
W14OEM-T121-29SP-0V-10.5☐☐☐☐☐☐☐
W15OEM-T121-34SP-0V-10.5☐☐☐☐☐☐☐
W16OEM-T121-36SP-0V-10.5☐☐☐☐☐☐☐
W17OEM-T121-90SP-0V-10.5☐☐☐☐☐☐☐
W18OEM-T121-91SP-0V-10.5☐☐☐☐☐☐☐
W19SP-0V-1G5VOODOOPROV-A-A240.5☐☐☐☐☐☐☐
W20SP-0V-1G5VOODOOPROV-B-B220.5☐☐☐☐☐☐☐
W21OEM-T121-72SP-5V1-10.5☐☐☐☐☐☐☐
W22OEM-T121-73SP-5V1-10.5☐☐☐☐☐☐☐
W23OEM-T121-83SP-5V1-10.5☐☐☐☐☐☐☐
W24OEM-T121-98SP-5V1-10.5☐☐☐☐☐☐☐
W25OEM-T121-99SP-5V1-10.5☐☐☐☐☐☐☐
W26SP-5V1-1G5VOODOOPROV-A-A320.5☐☐☐☐☐☐☐
W27OEM-T121-82G5VOODOOPROV-A-A80.5☐☐☐☐☐☐☐
W28OEM-T121-86G5VOODOOPROV-A-A90.5☐☐☐☐☐☐☐
W29OEM-T121-106G5VOODOOPROV-B-B90.5☐☐☐☐☐☐☐
W30OEM-T121-107G5VOODOOPROV-B-B80.5☐☐☐☐☐☐☐
W31OEM-T121-102G5VOODOOPROV-A-A130.5☐☐☐☐☐☐☐
W32OEM-T121-95G5VOODOOPROV-A-A120.5☐☐☐☐☐☐☐
W33OEM-T121-103G5VOODOOPROV-A-A110.5☐☐☐☐☐☐☐
W34OEM-T121-94G5VOODOOPROV-A-A100.5☐☐☐☐☐☐☐
W35OEM-T121-96G5VOODOOPROV-A-A40.5☐☐☐☐☐☐☐
W36OEM-T121-89G5VOODOOPROV-A-A30.5☐☐☐☐☐☐☐
W37OEM-T121-97G5VOODOOPROV-A-A20.5☐☐☐☐☐☐☐
W38OEM-T121-88G5VOODOOPROV-A-A10.5☐☐☐☐☐☐☐
W39OEM-T121-118G5VOODOOPROV-B-B260.5☐☐☐☐☐☐☐
W40OEM-T121-117G5VOODOOPROV-B-B180.5☐☐☐☐☐☐☐
W41OEM-T121-3G5VOODOOPROV-A-A60.5☐☐☐☐☐☐☐
W42OEM-T121-53G5VOODOOPROV-A-A170.5☐☐☐☐☐☐☐
W43OEM-T121-101G5VOODOOPROV-A-A210.5☐☐☐☐☐☐☐
W44OEM-T121-33G5VOODOOPROV-A-A200.5☐☐☐☐☐☐☐
W45OEM-T121-84G5VOODOOPROV-A-A220.5☐☐☐☐☐☐☐
W46OEM-T121-35G5VOODOOPROV-A-A190.5☐☐☐☐☐☐☐
W47OEM-T121-92G5VOODOOPROV-A-A330.5☐☐☐☐☐☐☐
W48OEM-T121-93G5VOODOOPROV-A-A150.5☐☐☐☐☐☐☐
W49OEM-T121-65G5VOODOOPROV-E-E150.5☐☐☐☐☐☐☐
W50OEM-T121-66G5VOODOOPROV-E-E220.5☐☐☐☐☐☐☐
W51OEM-T121-5G5VOODOOPROV-B-B40.5☐☐☐☐☐☐☐
W52OEM-T121-63G5VOODOOPROV-B-B30.5☐☐☐☐☐☐☐
W53OEM-T121-104G5VOODOOPROV-B-B20.5☐☐☐☐☐☐☐
W54OEM-T121-105G5VOODOOPROV-B-B10.5☐☐☐☐☐☐☐
W55OEM-T121-115G5VOODOOPROV-E-E40.5☐☐☐☐☐☐☐
W56OEM-T121-47G5VOODOOPROV-E-E30.5☐☐☐☐☐☐☐
W57OEM-T121-48G5VOODOOPROV-E-E20.5☐☐☐☐☐☐☐
W58OEM-T121-64G5VOODOOPROV-E-E10.5☐☐☐☐☐☐☐
W59OEM-T121-51G5VOODOOPROV-E-E170.5☐☐☐☐☐☐☐
W60OEM-T121-52G5VOODOOPROV-E-E240.5☐☐☐☐☐☐☐
W61OEM-T121-70G5VOODOOPROV-E-E190.5☐☐☐☐☐☐☐
W62OEM-T121-71G5VOODOOPROV-E-E260.5☐☐☐☐☐☐☐
W63OEM-T121-68G5VOODOOPROV-A-A140.5☐☐☐☐☐☐☐
W64OEM-T121-69G5VOODOOPROV-A-A180.5☐☐☐☐☐☐☐
W65OEM-T121-85G5VOODOOPROV-A-A160.5☐☐☐☐☐☐☐
W66OEM-T121-54G5VOODOOPROV-A-A300.5☐☐☐☐☐☐☐
W67OEM-T121-60G5VOODOOPROV-E-E50.5☐☐☐☐☐☐☐
W68OEM-T121-58G5VOODOOPROV-E-E60.5☐☐☐☐☐☐☐

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
1G5VOODOOPROV-A-A24G5VOODOOPROV-A-A32open (OL)sensor ground must not touch 5 V sensor reference
2G5VOODOOPROV-A-A24G5VOODOOPROV-A-A5open (OL)sensor ground must not touch +12 V supply
3G5VOODOOPROV-A-A25G5VOODOOPROV-A-A32open (OL)power ground must not touch 5 V sensor reference
4G5VOODOOPROV-A-A25G5VOODOOPROV-A-A5open (OL)power ground must not touch +12 V supply
5G5VOODOOPROV-A-A5G5VOODOOPROV-A-A32open (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
No revisions yet.

Schematic

G5VOODOOPROV-AG5VOODOOPROV-BG5VOODOOPROV-EOEM-T121SP-0VSP-14VSP-5V1SP-GND

Connectors

G5VOODOOPROV-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
A1Injection 4—W38—0.5OEM-T121-88———
A10Ignition 4—W34—0.5OEM-T121-94———
A11Ignition 3—W33—0.5OEM-T121-103———
A12Ignition 2—W32—0.5OEM-T121-95———
A13Ignition 1—W31—0.5OEM-T121-102———
A14Analogue Volt 4—W63—0.5OEM-T121-68———
A15Analogue Temp 1—W48—0.5OEM-T121-93———
A16Analogue Temp 2—W65—0.5OEM-T121-85———
A17Analogue Volt 1—W42—0.5OEM-T121-53———
A18ADIO 4—W64—0.5OEM-T121-69———
A19ADIO 3—W46—0.5OEM-T121-35———
A2Injection 3—W37—0.5OEM-T121-97———
A20ADIO 2—W44—0.5OEM-T121-33———
A21ADIO 1—W43—0.5OEM-T121-101———
A22Analogue Volt 2—W45—0.5OEM-T121-84———
A23Digital Input 3————————
A24Sensor Ground—W19—0.5SP-0V-1———
A25Ground—W7—0.85SP-GND-1———
A26ADIO 8————————
A27ADIO 7————————
A28ADIO 6————————
A29ADIO 5————————
A3Injection 2—W36—0.5OEM-T121-89———
A30Digital Input 1—W66—0.5OEM-T121-54———
A31Digital Input 2————————
A32+5V Out—W26—0.5SP-5V1-1———
A33Analogue Volt 3—W47—0.5OEM-T121-92———
A34Ground—W8—0.85SP-GND-1———
A4Injection 1—W35—0.5OEM-T121-96———
A5+14V—W3—0.85SP-14V-1———
A6Ignition Switch—W41—0.5OEM-T121-3———
A7Shield Ground————————
A8Trigger 1—W27—0.5OEM-T121-82———
A9Trigger 2—W28—0.5OEM-T121-86———

G5VOODOOPROV-B

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
B1Injection 8—W54—0.5OEM-T121-105———
B10Ignition 8————————
B11Ignition 7————————
B12Ignition 6————————
B13Ignition 5————————
B14Analogue Volt 14————————
B15Analogue Volt 6————————
B16Analogue Volt 7————————
B17Shield Ground————————
B18Aux 1 / H-Bridge 1—W40—0.5OEM-T121-117———
B19Digital Input 6 / K-Line 2————————
B2Injection 7—W53—0.5OEM-T121-104———
B20Digital Input 5 / K-Line 1————————
B21Digital Input 4————————
B22Sensor Ground—W20—0.5SP-0V-1———
B23Analogue Volt 8————————
B24Analogue Volt 9————————
B25Ground—W9—0.85SP-GND-1———
B26Aux 2 / H-Bridge 1—W39—0.5OEM-T121-118———
B27Digital Input 10————————
B28Digital Input 9————————
B29Digital Input 8————————
B3Injection 6—W52—0.5OEM-T121-63———
B30Digital Input 7————————
B31Analogue Volt 10————————
B32Analogue Volt 11————————
B33Analogue Volt 5————————
B34Ground—W10—0.85SP-GND-1———
B4Injection 5—W51—0.5OEM-T121-5———
B5+14V E-Throttle—W4—0.85SP-14V-1———
B6Analogue Temp 3————————
B7Analogue Temp 4————————
B8Knock 2—W30—0.5OEM-T121-107———
B9Knock 1—W29—0.5OEM-T121-106———

G5VOODOOPROV-E

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
E1Injection 12—W58—0.5OEM-T121-64———
E10Ignition 10 / Injection 14————————
E11Ignition 9 / Injection 13————————
E12Analogue Volt 12————————
E13Analogue Volt 13————————
E14Aux 3 / H-Bridge 2————————
E15Aux 5 / WB1 Heat—W49—0.5OEM-T121-65———
E16WB1 RE————————
E17WB1 IPE—W59—0.5OEM-T121-51———
E18WB1 APE————————
E19WB1 MES—W61—0.5OEM-T121-70———
E2Injection 11—W57—0.5OEM-T121-48———
E20Aux 4 / H-Bridge 2————————
E21Ground—W11—0.85SP-GND-1———
E22Aux 6 / WB2 Heat—W50—0.5OEM-T121-66———
E23WB2 RE————————
E24WB2 IPE—W60—0.5OEM-T121-52———
E25WB2 APE————————
E26WB2 MES—W62—0.5OEM-T121-71———
E3Injection 10—W56—0.5OEM-T121-47———
E4Injection 9—W55—0.5OEM-T121-115———
E5CAN 2 High—W67—0.5OEM-T121-60———
E6CAN 2 Low—W68—0.5OEM-T121-58———
E7Ground—W12—0.85SP-GND-1———
E8Ignition 12 / Injection 16————————
E9Ignition 11 / Injection 15————————

OEM-T121

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1ECU ground—W5—0.85SP-GND-1———
101Boost pressure sensor (G31)—W43—0.5G5VOODOOPROV-A-A21———
102Ignition coil 1 (N127)—W31—0.5G5VOODOOPROV-A-A13———
103Ignition coil 3 (N158)—W33—0.5G5VOODOOPROV-A-A11———
104Boost control solenoid (N75)—W53—0.5G5VOODOOPROV-B-B2———
105Diverter valve (N249)—W54—0.5G5VOODOOPROV-B-B1———
106Knock sensor 1 (G61)—W29—0.5G5VOODOOPROV-B-B9———
107Knock sensor 2 (G66)—W30—0.5G5VOODOOPROV-B-B8———
108Sensor ground—W13—0.5SP-0V-1———
115VVT camshaft adjustment valve (N205)—W55—0.5G5VOODOOPROV-E-E4———
117Throttle motor G186 (+)—W40—0.5G5VOODOOPROV-B-B18———
118Throttle motor G186 (−)—W39—0.5G5VOODOOPROV-B-B26———
121ECM + coil power (J271 relay feed)—W1—0.85SP-14V-1———
2ECU ground—W6—0.85SP-GND-1———
21ECM power (J271 relay feed)—W2—0.85SP-14V-1———
27MAF sensor supply (G70)————————
29MAF sensor ground (G70)—W14—0.5SP-0V-1———
3Ignition switch +12V (term 15)—W41—0.5G5VOODOOPROV-A-A6———
33Accelerator pedal position 1 (G79)—W44—0.5G5VOODOOPROV-A-A20———
34Accelerator pedal position 1 ground (G79)—W15—0.5SP-0V-1———
35Accelerator pedal position 2 (G185)—W46—0.5G5VOODOOPROV-A-A19———
36Accelerator pedal position 2 ground (G185)—W16—0.5SP-0V-1———
37Engine speed signal (tacho to cluster)————————
43K-line diagnostics (OBD pin 7)————————
47Check engine light (MIL)—W56—0.5G5VOODOOPROV-E-E3———
48EPC warning light—W57—0.5G5VOODOOPROV-E-E2———
5Wideband lambda heater (Z19)—W51—0.5G5VOODOOPROV-B-B4———
51Wideband lambda pump (G39)—W59—0.5G5VOODOOPROV-E-E17———
52Wideband lambda pump (G39)—W60—0.5G5VOODOOPROV-E-E24———
53MAF sensor signal (G70)—W42—0.5G5VOODOOPROV-A-A17———
54Road speed signal (VSS)—W66—0.5G5VOODOOPROV-A-A30———
58CAN bus low—W68—0.5G5VOODOOPROV-E-E6———
60CAN bus high—W67—0.5G5VOODOOPROV-E-E5———
62Battery constant +12V (term 30)————————
63Post-cat lambda heater (Z29)—W52—0.5G5VOODOOPROV-B-B3———
64EVAP canister valve (N80)—W58—0.5G5VOODOOPROV-E-E1———
65Fuel pump relay control—W49—0.5G5VOODOOPROV-E-E15———
66Secondary-air pump relay (J299)—W50—0.5G5VOODOOPROV-E-E22———
68Post-cat lambda signal (G130)—W63—0.5G5VOODOOPROV-A-A14———
69Post-cat lambda signal (G130)—W64—0.5G5VOODOOPROV-A-A18———
70Wideband lambda Nernst signal (G39)—W61—0.5G5VOODOOPROV-E-E19———
71Wideband lambda Nernst signal (G39)—W62—0.5G5VOODOOPROV-E-E26———
72Accelerator pedal position 1 5V supply (G79)—W21—0.5SP-5V1-1———
73Accelerator pedal position 2 5V supply (G185)—W22—0.5SP-5V1-1———
82Crank position sensor (G28)—W27—0.5G5VOODOOPROV-A-A8———
83Throttle position sensor 5V supply (G187/G188)—W23—0.5SP-5V1-1———
84Throttle position sensor 1 (G187)—W45—0.5G5VOODOOPROV-A-A22———
85Intake air temperature (G42)—W65—0.5G5VOODOOPROV-A-A16———
86Camshaft position sensor (G40)—W28—0.5G5VOODOOPROV-A-A9———
88Injector 4 (N33)—W38—0.5G5VOODOOPROV-A-A1———
89Injector 2 (N31)—W36—0.5G5VOODOOPROV-A-A3———
9Secondary-air injection valve (N112)————————
90Crank position sensor ground (G28)—W17—0.5SP-0V-1———
91Throttle position sensor ground (G187/G188)—W18—0.5SP-0V-1———
92Throttle position sensor 2 (G188)—W47—0.5G5VOODOOPROV-A-A33———
93Engine coolant temperature (G62)—W48—0.5G5VOODOOPROV-A-A15———
94Ignition coil 4 (N163)—W34—0.5G5VOODOOPROV-A-A10———
95Ignition coil 2 (N128)—W32—0.5G5VOODOOPROV-A-A12———
96Injector 1 (N30)—W35—0.5G5VOODOOPROV-A-A4———
97Injector 3 (N32)—W37—0.5G5VOODOOPROV-A-A2———
98Cam + boost sensor 5V supply (G40/G31)—W24—0.5SP-5V1-1———
99Knock sensor 5V supply (G61/G66)—W25—0.5SP-5V1-1———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W13—0.5OEM-T121-108———
1——W14—0.5OEM-T121-29———
1——W15—0.5OEM-T121-34———
1——W16—0.5OEM-T121-36———
1——W17—0.5OEM-T121-90———
1——W18—0.5OEM-T121-91———
1——W19—0.5G5VOODOOPROV-A-A24———
1——W20—0.5G5VOODOOPROV-B-B22———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-T121-121———
1——W2—0.85OEM-T121-21———
1——W3—0.85G5VOODOOPROV-A-A5———
1——W4—0.85G5VOODOOPROV-B-B5———

SP-5V1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W21—0.5OEM-T121-72———
1——W22—0.5OEM-T121-73———
1——W23—0.5OEM-T121-83———
1——W24—0.5OEM-T121-98———
1——W25—0.5OEM-T121-99———
1——W26—0.5G5VOODOOPROV-A-A32———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W5—0.85OEM-T121-1———
1——W6—0.85OEM-T121-2———
1——W7—0.85G5VOODOOPROV-A-A25———
1——W8—0.85G5VOODOOPROV-A-A34———
1——W9—0.85G5VOODOOPROV-B-B25———
1——W10—0.85G5VOODOOPROV-B-B34———
1——W11—0.85G5VOODOOPROV-E-E21———
1——W12—0.85G5VOODOOPROV-E-E7———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-T121-1ECU groundgroundG5VOODOOPROV-A-A25 + G5VOODOOPROV-A-A34 + G5VOODOOPROV-B-B25 + G5VOODOOPROV-B-B34 + G5VOODOOPROV-E-E21 + G5VOODOOPROV-E-E7Ground + Ground + Ground + Ground + Ground + Groundgroundcorroborated
OEM-T121-101Boost pressure sensor (G31)analog_inG5VOODOOPROV-A-A21ADIO 1analog_incorroborated
OEM-T121-102Ignition coil 1 (N127)ignition_outG5VOODOOPROV-A-A13Ignition 1ignition_outcorroborated
OEM-T121-103Ignition coil 3 (N158)ignition_outG5VOODOOPROV-A-A11Ignition 3ignition_outcorroborated
OEM-T121-104Boost control solenoid (N75)low_side_outG5VOODOOPROV-B-B2Injection 7injector_outcorroborated
OEM-T121-105Diverter valve (N249)low_side_outG5VOODOOPROV-B-B1Injection 8injector_outcorroborated
OEM-T121-106Knock sensor 1 (G61)knock_inG5VOODOOPROV-B-B9Knock 1knock_incorroborated
OEM-T121-107Knock sensor 2 (G66)knock_inG5VOODOOPROV-B-B8Knock 2knock_incorroborated
OEM-T121-108Sensor groundsensor_groundG5VOODOOPROV-A-A24 + G5VOODOOPROV-B-B22Sensor Ground + Sensor Groundsensor_groundcorroborated
OEM-T121-115VVT camshaft adjustment valve (N205)low_side_outG5VOODOOPROV-E-E4Injection 9injector_outcorroborated
OEM-T121-117Throttle motor G186 (+)hbridge_outG5VOODOOPROV-B-B18Aux 1 / H-Bridge 1hbridge_outcorroborated
OEM-T121-118Throttle motor G186 (−)hbridge_outG5VOODOOPROV-B-B26Aux 2 / H-Bridge 1hbridge_outcorroborated
OEM-T121-121ECM + coil power (J271 relay feed)power_inG5VOODOOPROV-A-A5 + G5VOODOOPROV-B-B5+14V + +14V E-Throttlepower_incorroborated
OEM-T121-2ECU groundgroundG5VOODOOPROV-A-A25 + G5VOODOOPROV-A-A34 + G5VOODOOPROV-B-B25 + G5VOODOOPROV-B-B34 + G5VOODOOPROV-E-E21 + G5VOODOOPROV-E-E7Ground + Ground + Ground + Ground + Ground + Groundgroundcorroborated
OEM-T121-21ECM power (J271 relay feed)power_inG5VOODOOPROV-A-A5 + G5VOODOOPROV-B-B5+14V + +14V E-Throttlepower_incorroborated
OEM-T121-27MAF sensor supply (G70)power_in———corroborated
OEM-T121-29MAF sensor ground (G70)sensor_groundG5VOODOOPROV-A-A24 + G5VOODOOPROV-B-B22Sensor Ground + Sensor Groundsensor_groundcorroborated
OEM-T121-3Ignition switch +12V (term 15)digital_inG5VOODOOPROV-A-A6Ignition Switchdigital_incorroborated
OEM-T121-33Accelerator pedal position 1 (G79)analog_inG5VOODOOPROV-A-A20ADIO 2analog_incorroborated
OEM-T121-34Accelerator pedal position 1 ground (G79)sensor_groundG5VOODOOPROV-A-A24 + G5VOODOOPROV-B-B22Sensor Ground + Sensor Groundsensor_groundcorroborated
OEM-T121-35Accelerator pedal position 2 (G185)analog_inG5VOODOOPROV-A-A19ADIO 3analog_incorroborated
OEM-T121-36Accelerator pedal position 2 ground (G185)sensor_groundG5VOODOOPROV-A-A24 + G5VOODOOPROV-B-B22Sensor Ground + Sensor Groundsensor_groundcorroborated
OEM-T121-37Engine speed signal (tacho to cluster)tacho_out———corroborated
OEM-T121-43K-line diagnostics (OBD pin 7)serial———corroborated
OEM-T121-47Check engine light (MIL)low_side_outG5VOODOOPROV-E-E3Injection 10injector_outcorroborated
OEM-T121-48EPC warning lightlow_side_outG5VOODOOPROV-E-E2Injection 11injector_outcorroborated
OEM-T121-5Wideband lambda heater (Z19)low_side_outG5VOODOOPROV-B-B4Injection 5injector_outcorroborated
OEM-T121-51Wideband lambda pump (G39)wb_ipG5VOODOOPROV-E-E17WB1 IPEwb_ipcorroborated
OEM-T121-52Wideband lambda pump (G39)wb_ipG5VOODOOPROV-E-E24WB2 IPEwb_ipcorroborated
OEM-T121-53MAF sensor signal (G70)analog_inG5VOODOOPROV-A-A17Analogue Volt 1analog_incorroborated
OEM-T121-54Road speed signal (VSS)digital_inG5VOODOOPROV-A-A30Digital Input 1digital_incorroborated
OEM-T121-58CAN bus lowcan_lG5VOODOOPROV-E-E6CAN 2 Lowcan_lcorroborated
OEM-T121-60CAN bus highcan_hG5VOODOOPROV-E-E5CAN 2 Highcan_hcorroborated
OEM-T121-62Battery constant +12V (term 30)power_in———corroborated
OEM-T121-63Post-cat lambda heater (Z29)low_side_outG5VOODOOPROV-B-B3Injection 6injector_outcorroborated
OEM-T121-64EVAP canister valve (N80)low_side_outG5VOODOOPROV-E-E1Injection 12injector_outcorroborated
OEM-T121-65Fuel pump relay controllow_side_outG5VOODOOPROV-E-E15Aux 5 / WB1 Heatlow_side_outcorroborated
OEM-T121-66Secondary-air pump relay (J299)low_side_outG5VOODOOPROV-E-E22Aux 6 / WB2 Heatlow_side_outcorroborated
OEM-T121-68Post-cat lambda signal (G130)lambda_nb_inG5VOODOOPROV-A-A14Analogue Volt 4analog_incorroborated
OEM-T121-69Post-cat lambda signal (G130)lambda_nb_inG5VOODOOPROV-A-A18ADIO 4analog_incorroborated
OEM-T121-70Wideband lambda Nernst signal (G39)wb_vsG5VOODOOPROV-E-E19WB1 MESwb_vscorroborated
OEM-T121-71Wideband lambda Nernst signal (G39)wb_vsG5VOODOOPROV-E-E26WB2 MESwb_vscorroborated
OEM-T121-72Accelerator pedal position 1 5V supply (G79)vrefG5VOODOOPROV-A-A32+5V Outvrefcorroborated
OEM-T121-73Accelerator pedal position 2 5V supply (G185)vrefG5VOODOOPROV-A-A32+5V Outvrefcorroborated
OEM-T121-82Crank position sensor (G28)trigger_inG5VOODOOPROV-A-A8Trigger 1trigger_incorroborated
OEM-T121-83Throttle position sensor 5V supply (G187/G188)vrefG5VOODOOPROV-A-A32+5V Outvrefcorroborated
OEM-T121-84Throttle position sensor 1 (G187)analog_inG5VOODOOPROV-A-A22Analogue Volt 2analog_incorroborated
OEM-T121-85Intake air temperature (G42)temp_inG5VOODOOPROV-A-A16Analogue Temp 2temp_incorroborated
OEM-T121-86Camshaft position sensor (G40)trigger_inG5VOODOOPROV-A-A9Trigger 2trigger_incorroborated
OEM-T121-88Injector 4 (N33)injector_outG5VOODOOPROV-A-A1Injection 4injector_outcorroborated
OEM-T121-89Injector 2 (N31)injector_outG5VOODOOPROV-A-A3Injection 2injector_outcorroborated
OEM-T121-9Secondary-air injection valve (N112)low_side_out———corroborated
OEM-T121-90Crank position sensor ground (G28)sensor_groundG5VOODOOPROV-A-A24 + G5VOODOOPROV-B-B22Sensor Ground + Sensor Groundsensor_groundcorroborated
OEM-T121-91Throttle position sensor ground (G187/G188)sensor_groundG5VOODOOPROV-A-A24 + G5VOODOOPROV-B-B22Sensor Ground + Sensor Groundsensor_groundcorroborated
OEM-T121-92Throttle position sensor 2 (G188)analog_inG5VOODOOPROV-A-A33Analogue Volt 3analog_incorroborated
OEM-T121-93Engine coolant temperature (G62)temp_inG5VOODOOPROV-A-A15Analogue Temp 1temp_incorroborated
OEM-T121-94Ignition coil 4 (N163)ignition_outG5VOODOOPROV-A-A10Ignition 4ignition_outcorroborated
OEM-T121-95Ignition coil 2 (N128)ignition_outG5VOODOOPROV-A-A12Ignition 2ignition_outcorroborated
OEM-T121-96Injector 1 (N30)injector_outG5VOODOOPROV-A-A4Injection 1injector_outcorroborated
OEM-T121-97Injector 3 (N32)injector_outG5VOODOOPROV-A-A2Injection 3injector_outcorroborated
OEM-T121-98Cam + boost sensor 5V supply (G40/G31)vrefG5VOODOOPROV-A-A32+5V Outvrefcorroborated
OEM-T121-99Knock sensor 5V supply (G61/G66)vrefG5VOODOOPROV-A-A32+5V Outvrefcorroborated

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-T121-121SP-14V-10.85no routeECM + coil power (J271 relay feed)—
W2OEM-T121-21SP-14V-10.85no routeECM power (J271 relay feed)—
W3SP-14V-1G5VOODOOPROV-A-A50.85no route+14V—
W4SP-14V-1G5VOODOOPROV-B-B50.85no route+14V E-Throttle—
W5OEM-T121-1SP-GND-10.85no routeECU ground—
W6OEM-T121-2SP-GND-10.85no routeECU ground—
W7SP-GND-1G5VOODOOPROV-A-A250.85no routeGround—
W8SP-GND-1G5VOODOOPROV-A-A340.85no routeGround—
W9SP-GND-1G5VOODOOPROV-B-B250.85no routeGround—
W10SP-GND-1G5VOODOOPROV-B-B340.85no routeGround—
W11SP-GND-1G5VOODOOPROV-E-E210.85no routeGround—
W12SP-GND-1G5VOODOOPROV-E-E70.85no routeGround—
W13OEM-T121-108SP-0V-10.5no routeSensor ground—
W14OEM-T121-29SP-0V-10.5no routeMAF sensor ground (G70)—
W15OEM-T121-34SP-0V-10.5no routeAccelerator pedal position 1 ground (G79)—
W16OEM-T121-36SP-0V-10.5no routeAccelerator pedal position 2 ground (G185)—
W17OEM-T121-90SP-0V-10.5no routeCrank position sensor ground (G28)—
W18OEM-T121-91SP-0V-10.5no routeThrottle position sensor ground (G187/G188)—
W19SP-0V-1G5VOODOOPROV-A-A240.5no routeSensor Ground—
W20SP-0V-1G5VOODOOPROV-B-B220.5no routeSensor Ground—
W21OEM-T121-72SP-5V1-10.5no routeAccelerator pedal position 1 5V supply (G79)—
W22OEM-T121-73SP-5V1-10.5no routeAccelerator pedal position 2 5V supply (G185)—
W23OEM-T121-83SP-5V1-10.5no routeThrottle position sensor 5V supply (G187/G188)—
W24OEM-T121-98SP-5V1-10.5no routeCam + boost sensor 5V supply (G40/G31)—
W25OEM-T121-99SP-5V1-10.5no routeKnock sensor 5V supply (G61/G66)—
W26SP-5V1-1G5VOODOOPROV-A-A320.5no route+5V Out—
W27OEM-T121-82G5VOODOOPROV-A-A80.5no routeCrank position sensor (G28)—
W28OEM-T121-86G5VOODOOPROV-A-A90.5no routeCamshaft position sensor (G40)—
W29OEM-T121-106G5VOODOOPROV-B-B90.5no routeKnock sensor 1 (G61)—
W30OEM-T121-107G5VOODOOPROV-B-B80.5no routeKnock sensor 2 (G66)—
W31OEM-T121-102G5VOODOOPROV-A-A130.5no routeIgnition coil 1 (N127)—
W32OEM-T121-95G5VOODOOPROV-A-A120.5no routeIgnition coil 2 (N128)—
W33OEM-T121-103G5VOODOOPROV-A-A110.5no routeIgnition coil 3 (N158)—
W34OEM-T121-94G5VOODOOPROV-A-A100.5no routeIgnition coil 4 (N163)—
W35OEM-T121-96G5VOODOOPROV-A-A40.5no routeInjector 1 (N30)—
W36OEM-T121-89G5VOODOOPROV-A-A30.5no routeInjector 2 (N31)—
W37OEM-T121-97G5VOODOOPROV-A-A20.5no routeInjector 3 (N32)—
W38OEM-T121-88G5VOODOOPROV-A-A10.5no routeInjector 4 (N33)—
W39OEM-T121-118G5VOODOOPROV-B-B260.5no routeThrottle motor G186 (−)—
W40OEM-T121-117G5VOODOOPROV-B-B180.5no routeThrottle motor G186 (+)—
W41OEM-T121-3G5VOODOOPROV-A-A60.5no routeIgnition switch +12V (term 15)—
W42OEM-T121-53G5VOODOOPROV-A-A170.5no routeMAF sensor signal (G70)—
W43OEM-T121-101G5VOODOOPROV-A-A210.5no routeBoost pressure sensor (G31)—
W44OEM-T121-33G5VOODOOPROV-A-A200.5no routeAccelerator pedal position 1 (G79)—
W45OEM-T121-84G5VOODOOPROV-A-A220.5no routeThrottle position sensor 1 (G187)—
W46OEM-T121-35G5VOODOOPROV-A-A190.5no routeAccelerator pedal position 2 (G185)—
W47OEM-T121-92G5VOODOOPROV-A-A330.5no routeThrottle position sensor 2 (G188)—
W48OEM-T121-93G5VOODOOPROV-A-A150.5no routeEngine coolant temperature (G62)—
W49OEM-T121-65G5VOODOOPROV-E-E150.5no routeFuel pump relay control—
W50OEM-T121-66G5VOODOOPROV-E-E220.5no routeSecondary-air pump relay (J299)—
W51OEM-T121-5G5VOODOOPROV-B-B40.5no routeWideband lambda heater (Z19)—
W52OEM-T121-63G5VOODOOPROV-B-B30.5no routePost-cat lambda heater (Z29)—
W53OEM-T121-104G5VOODOOPROV-B-B20.5no routeBoost control solenoid (N75)—
W54OEM-T121-105G5VOODOOPROV-B-B10.5no routeDiverter valve (N249)—
W55OEM-T121-115G5VOODOOPROV-E-E40.5no routeVVT camshaft adjustment valve (N205)—
W56OEM-T121-47G5VOODOOPROV-E-E30.5no routeCheck engine light (MIL)—
W57OEM-T121-48G5VOODOOPROV-E-E20.5no routeEPC warning light—
W58OEM-T121-64G5VOODOOPROV-E-E10.5no routeEVAP canister valve (N80)—
W59OEM-T121-51G5VOODOOPROV-E-E170.5no routeWideband lambda pump (G39)—
W60OEM-T121-52G5VOODOOPROV-E-E240.5no routeWideband lambda pump (G39)—
W61OEM-T121-70G5VOODOOPROV-E-E190.5no routeWideband lambda Nernst signal (G39)—
W62OEM-T121-71G5VOODOOPROV-E-E260.5no routeWideband lambda Nernst signal (G39)—
W63OEM-T121-68G5VOODOOPROV-A-A140.5no routePost-cat lambda signal (G130)—
W64OEM-T121-69G5VOODOOPROV-A-A180.5no routePost-cat lambda signal (G130)—
W65OEM-T121-85G5VOODOOPROV-A-A160.5no routeIntake air temperature (G42)—
W66OEM-T121-54G5VOODOOPROV-A-A300.5no routeRoad speed signal (VSS)—
W67OEM-T121-60G5VOODOOPROV-E-E50.5no routeCAN bus high—
W68OEM-T121-58G5VOODOOPROV-E-E60.5no routeCAN bus low—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (15)

SeverityCodeSubjectMessage
warnDBW_MOTOR_CURRENTG5VOODOOPROV-B-B18Cannot confirm G5 Voodoo Pro V2 can drive the throttle motor: neither the motor stall current (OEM-T121-117) nor the peak rating of G5VOODOOPROV-B-B18 "Aux 1 / H-Bridge 1" is known.
warnDBW_MOTOR_CURRENTG5VOODOOPROV-B-B26Cannot confirm G5 Voodoo Pro V2 can drive the throttle motor: neither the motor stall current (OEM-T121-118) nor the peak rating of G5VOODOOPROV-B-B26 "Aux 2 / H-Bridge 1" is known.
warnDBW_SHARED_5VG5VOODOOPROV-A-A32 + OEM-T121-72 + OEM-T121-73 + OEM-T121-83 + OEM-T121-98 + OEM-T121-99 + SP-5V1-1These 5 V supplies are separate in the stock car (OEM-T121-72 [pedal1], OEM-T121-73 [pedal2], OEM-T121-83 [tps], OEM-T121-98 [cam_boost], OEM-T121-99 [knock]) and here share one ECU 5 V (G5VOODOOPROV-A-A32). On a drive-by-wire car the OEM splits them so one short or fault can't corrupt both throttle/pedal tracks at once. G5 Voodoo Pro V2 has 1 5 V sensor supply pin(s). All are in use, so decide: accept the shared supply (and rely on the ECU's DBW fault checks), or add a separate regulated 5 V for the sub tracks.
warnLOAD_UNKNOWNG5VOODOOPROV-E-E15G5VOODOOPROV-E-E15 "Aux 5 / WB1 Heat" drives OEM-T121-65 Fuel pump relay control (load 0.2 A) but its current rating is unknown. Check the ECU manual.
warnLOAD_UNKNOWNG5VOODOOPROV-E-E22G5VOODOOPROV-E-E22 "Aux 6 / WB2 Heat" drives OEM-T121-66 Secondary-air pump relay (J299) (load 0.2 A) but its current rating is unknown. Check the ECU manual.
warnSUPPLY_GROUPG5VOODOOPROV-A-A32 + OEM-T121-72 + OEM-T121-73 + OEM-T121-83 + OEM-T121-98 + OEM-T121-99 + SP-5V1-1Supplies meant to stay independent share one net: OEM-T121-72 [pedal1], OEM-T121-73 [pedal2], OEM-T121-83 [tps], OEM-T121-98 [cam_boost], OEM-T121-99 [knock]. The new ECU has no free 5 V reference, so they share one: normal on a standalone, but a short on any of these sensors drops them all.
infoNET_FAMILYOEM-T121-104 ↔ G5VOODOOPROV-B-B2OEM-T121-104 "Boost control solenoid (N75)" [low_side_out] is wired to G5VOODOOPROV-B-B2 "Injection 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-105 ↔ G5VOODOOPROV-B-B1OEM-T121-105 "Diverter valve (N249)" [low_side_out] is wired to G5VOODOOPROV-B-B1 "Injection 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-115 ↔ G5VOODOOPROV-E-E4OEM-T121-115 "VVT camshaft adjustment valve (N205)" [low_side_out] is wired to G5VOODOOPROV-E-E4 "Injection 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-47 ↔ G5VOODOOPROV-E-E3OEM-T121-47 "Check engine light (MIL)" [low_side_out] is wired to G5VOODOOPROV-E-E3 "Injection 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-48 ↔ G5VOODOOPROV-E-E2OEM-T121-48 "EPC warning light" [low_side_out] is wired to G5VOODOOPROV-E-E2 "Injection 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-5 ↔ G5VOODOOPROV-B-B4OEM-T121-5 "Wideband lambda heater (Z19)" [low_side_out] is wired to G5VOODOOPROV-B-B4 "Injection 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-63 ↔ G5VOODOOPROV-B-B3OEM-T121-63 "Post-cat lambda heater (Z29)" [low_side_out] is wired to G5VOODOOPROV-B-B3 "Injection 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-T121-64 ↔ G5VOODOOPROV-E-E1OEM-T121-64 "EVAP canister valve (N80)" [low_side_out] is wired to G5VOODOOPROV-E-E1 "Injection 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM4 optional OEM pins are not mapped: OEM-T121-27 MAF sensor supply (G70); OEM-T121-37 Engine speed signal (tacho to cluster); OEM-T121-43 K-line diagnostics (OBD pin 7); OEM-T121-9 Secondary-air injection valve (N112)

Accepted (1)

CodeSubjectReasonBy
REQUIRED_UNMAPPEDOEM-T121-62Battery-constant (memory) feed of the stock ECU: the new ECU has no such input, so it is not needed.mapping-proposal

Notes

Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Not wired: - OEM-T121 62: Battery constant +12V (term 30): Link G5 Voodoo Pro V2 has no battery-constant input; not needed - OEM-T121 9: Secondary-air injection valve (N112): no free low_side/relay_control/heater_low_side/ls_hs/injector on Link G5 Voodoo Pro V2 - OEM-T121 37: Engine speed signal (tacho to cluster): no free tacho/frequency_out/low_side/ls_hs on Link G5 Voodoo Pro V2 - OEM-T121 43: K-line diagnostics (OBD pin 7): no free k_line on Link G5 Voodoo Pro V2 - OEM-T121 27: MAF sensor supply (G70): no rule for class sensor_supply_in; wire by hand

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docLink G5 Voodoo Pro V2 Installer I/O Tablehttps://kb.linkecu.com/__attachments/a_f77d027cd0c72fff9873eaed54ce6e4ec34cf9da8ae01036efdbecbb8c95be0b/G5%20Voodoo%20Pro%20V2%20Installer%20IO%20Table.pdf———
3community_copyNefMoto: ME7.5 ECU bench-flashing power/ground pinshttp://nefmoto.com/wiki/index.php?title=ECU_Bench_Flashing———
3community_copyvwressources: Bosch Motronic ME7.5 (AMK/ARY/AUQ/ARX/AUM) T121 pinouthttps://www.vwressources.planethoster.world/me75_pinout.html———