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BMW 3 Series E46 1998–2006 (M54) → MaxxECU MaxxECU GEN2 TRACK (auto)

BMW 3 Series E46 1998–2006 (M54) — MaxxECU — MaxxECU GEN2 TRACK
⚠ NOT CHECKED. Don't build from this.
Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08

Before you start

Statusdraft · not yet verified: nobody has reported building and running this harness
Open errors1: read the Findings page before cutting any wire
Size of the job74 wires · 13 connectors · 1 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-X60001-8SP-14V-10.85☐☐☐☐☐☐☐
W2OEM-X60001-9SP-14V-10.85☐☐☐☐☐☐☐
W3SP-14V-1MAXXECUGEN2T-MX1-250.85☐☐☐☐☐☐☐
W4SP-14V-1MAXXECUGEN2T-MX2-250.85☐☐☐☐☐☐☐
W5OEM-X60001-4SP-GND-10.85☐☐☐☐☐☐☐
W6OEM-X60001-5SP-GND-10.85☐☐☐☐☐☐☐
W7OEM-X60001-6SP-GND-10.85☐☐☐☐☐☐☐
W8OEM-X60005-5SP-GND-10.85☐☐☐☐☐☐☐
W9SP-GND-1MAXXECUGEN2T-MX1-90.85☐☐☐☐☐☐☐
W10SP-GND-1MAXXECUGEN2T-MX2-90.85☐☐☐☐☐☐☐
W11SP-GND-1MAXXECUGEN2T-MX3-90.85☐☐☐☐☐☐☐
W12OEM-X60002-20SP-0V-10.5☐☐☐☐☐☐☐
W13OEM-X60002-21SP-0V-10.5☐☐☐☐☐☐☐
W14OEM-X60002-22SP-0V-10.5☐☐☐☐☐☐☐
W15OEM-X60002-24SP-0V-10.5☐☐☐☐☐☐☐
W16OEM-X60003-15SP-0V-10.5☐☐☐☐☐☐☐
W17OEM-X60003-17SP-0V-10.5☐☐☐☐☐☐☐
W18OEM-X60003-18SP-0V-10.5☐☐☐☐☐☐☐
W19OEM-X60003-20SP-0V-10.5☐☐☐☐☐☐☐
W20OEM-X60003-21SP-0V-10.5☐☐☐☐☐☐☐
W21OEM-X60003-23SP-0V-10.5☐☐☐☐☐☐☐
W22OEM-X60003-25SP-0V-10.5☐☐☐☐☐☐☐
W23OEM-X60003-28SP-0V-10.5☐☐☐☐☐☐☐
W24OEM-X60004-12SP-0V-10.5☐☐☐☐☐☐☐
W25OEM-X60004-7SP-0V-10.5☐☐☐☐☐☐☐
W26SP-0V-1MAXXECUGEN2T-MX1-140.5☐☐☐☐☐☐☐
W27OEM-X60003-7SP-5V1-10.5☐☐☐☐☐☐☐
W28OEM-X60004-14SP-5V1-10.5☐☐☐☐☐☐☐
W29OEM-X60004-9SP-5V1-10.5☐☐☐☐☐☐☐
W30SP-5V1-1MAXXECUGEN2T-MX1-120.5☐☐☐☐☐☐☐
W31OEM-X60003-8MAXXECUGEN2T-MX1-100.5☐☐☐☐☐☐☐
W32OEM-X60003-2MAXXECUGEN2T-MX1-180.5☐☐☐☐☐☐☐
W33OEM-X60003-29MAXXECUGEN2T-MX2-280.5☐☐☐☐☐☐☐
W34OEM-X60003-30MAXXECUGEN2T-MX2-310.5☐☐☐☐☐☐☐
W35OEM-X60005-3MAXXECUGEN2T-MX1-10.5☐☐☐☐☐☐☐
W36OEM-X60005-2MAXXECUGEN2T-MX1-20.5☐☐☐☐☐☐☐
W37OEM-X60005-1MAXXECUGEN2T-MX1-30.5☐☐☐☐☐☐☐
W38OEM-X60005-9MAXXECUGEN2T-MX1-40.5☐☐☐☐☐☐☐
W39OEM-X60005-8MAXXECUGEN2T-MX2-10.5☐☐☐☐☐☐☐
W40OEM-X60005-7MAXXECUGEN2T-MX2-20.5☐☐☐☐☐☐☐
W41OEM-X60003-33MAXXECUGEN2T-MX1-310.5☐☐☐☐☐☐☐
W42OEM-X60003-34MAXXECUGEN2T-MX1-320.5☐☐☐☐☐☐☐
W43OEM-X60003-35MAXXECUGEN2T-MX1-330.5☐☐☐☐☐☐☐
W44OEM-X60003-36MAXXECUGEN2T-MX1-340.5☐☐☐☐☐☐☐
W45OEM-X60003-37MAXXECUGEN2T-MX2-330.5☐☐☐☐☐☐☐
W46OEM-X60003-38MAXXECUGEN2T-MX2-340.5☐☐☐☐☐☐☐
W47OEM-X60003-48SP-SHD-10.5☐☐☐☐☐☐☐
W48SP-SHD-1MAXXECUGEN2T-MX1-110.5☐☐☐☐☐☐☐
W49OEM-X60003-43MAXXECUGEN2T-MX2-70.5☐☐☐☐☐☐☐
W50OEM-X60003-44MAXXECUGEN2T-MX2-80.5☐☐☐☐☐☐☐
W51OEM-X60003-46MAXXECUGEN2T-MX3-10.5☐☐☐☐☐☐☐
W52OEM-X60003-47MAXXECUGEN2T-MX3-20.5☐☐☐☐☐☐☐
W53OEM-X60001-1MAXXECUGEN2T-MX1-50.5☐☐☐☐☐☐☐
W54OEM-X60002-23MAXXECUGEN2T-MX1-60.5☐☐☐☐☐☐☐
W55OEM-X60004-10MAXXECUGEN2T-MX1-70.5☐☐☐☐☐☐☐
W56OEM-X60002-1MAXXECUGEN2T-MX2-120.5☐☐☐☐☐☐☐
W57OEM-X60002-13MAXXECUGEN2T-MX3-120.5☐☐☐☐☐☐☐
W58OEM-X60002-19MAXXECUGEN2T-MX1-80.5☐☐☐☐☐☐☐
W59OEM-X60002-7MAXXECUGEN2T-MX1-170.5☐☐☐☐☐☐☐
W60OEM-X60003-40MAXXECUGEN2T-MX2-30.5☐☐☐☐☐☐☐
W61OEM-X60003-41MAXXECUGEN2T-MX3-290.5☐☐☐☐☐☐☐
W62OEM-X60003-42MAXXECUGEN2T-MX3-300.5☐☐☐☐☐☐☐
W63OEM-X60003-1MAXXECUGEN2T-MX1-260.5☐☐☐☐☐☐☐
W64OEM-X60003-19MAXXECUGEN2T-MX1-270.5☐☐☐☐☐☐☐
W65OEM-X60004-8MAXXECUGEN2T-MX1-280.5☐☐☐☐☐☐☐
W66OEM-X60003-10MAXXECUGEN2T-MX1-290.5☐☐☐☐☐☐☐
W67OEM-X60004-13MAXXECUGEN2T-MX1-300.5☐☐☐☐☐☐☐
W68OEM-X60002-14MAXXECUGEN2T-MX2-40.5☐☐☐☐☐☐☐
W69OEM-X60002-15MAXXECUGEN2T-MX2-50.5☐☐☐☐☐☐☐
W70OEM-X60002-16MAXXECUGEN2T-MX2-60.5☐☐☐☐☐☐☐
W71OEM-X60002-18MAXXECUGEN2T-MX2-130.5☐☐☐☐☐☐☐
W72OEM-X60003-24MAXXECUGEN2T-MX2-140.5☐☐☐☐☐☐☐
W73OEM-X60003-22MAXXECUGEN2T-MX2-150.5☐☐☐☐☐☐☐
W74OEM-X60003-27MAXXECUGEN2T-MX2-160.5☐☐☐☐☐☐☐

Bench test (before first power-up)

Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).

#Probe AProbe BExpectWhyReading
1MAXXECUGEN2T-MX1-25MAXXECUGEN2T-MX1-14open (OL)+12 V supply must not touch sensor ground
2MAXXECUGEN2T-MX1-14MAXXECUGEN2T-MX1-12open (OL)sensor ground must not touch 5 V sensor reference
3MAXXECUGEN2T-MX1-25MAXXECUGEN2T-MX1-12open (OL)+12 V supply must not touch 5 V sensor reference
4MAXXECUGEN2T-MX1-9MAXXECUGEN2T-MX1-12open (OL)power ground must not touch 5 V sensor reference
5MAXXECUGEN2T-MX1-9MAXXECUGEN2T-MX1-25open (OL)power ground must not touch +12 V supply

Revisions

RevLabelByDate
No revisions yet.

Schematic

MAXXECUGEN2T-MX1MAXXECUGEN2T-MX2MAXXECUGEN2T-MX3OEM-X60001OEM-X60002OEM-X60003OEM-X60004OEM-X60005SP-0VSP-14VSP-5V1SP-GNDSP-SHD

Connectors

MAXXECUGEN2T-MX1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Ignition 1—W35—0.5OEM-X60005-3———
10Digital/VR 1 SIGNAL +—W31—0.5OEM-X60003-8———
11Digital/VR 1 SIGNAL -—W48—0.5SP-SHD-1———
12Digital/VR 1 POWER SUPPLY—W30—0.5SP-5V1-1———
13Digital/VR 1 SHIELD————————
14SENSOR GND—W26—0.5SP-0V-1———
15CAN L————————
16CAN H————————
17GP out 5 (GND)—W59—0.5OEM-X60002-7———
18Digital/VR 2 SIGNAL +—W32—0.5OEM-X60003-2———
19Digital/VR 2 SIGNAL -————————
2Ignition 2—W36—0.5OEM-X60005-2———
20Digital/VR 2 POWER SUPPLY————————
21Digital/VR 2 SHIELD————————
225V power supply————————
23Digital/VR 3 SIGNAL +————————
24Digital/VR 4 SIGNAL +————————
2512V supply 1—W3—0.85SP-14V-1———
26AIN 1—W63—0.5OEM-X60003-1———
27AIN 2—W64—0.5OEM-X60003-19———
28AIN 3—W65—0.5OEM-X60004-8———
29AIN 4—W66—0.5OEM-X60003-10———
3Ignition 3—W37—0.5OEM-X60005-1———
30AIN 5—W67—0.5OEM-X60004-13———
31INJECTOR 1—W41—0.5OEM-X60003-33———
32INJECTOR 2—W42—0.5OEM-X60003-34———
33INJECTOR 3—W43—0.5OEM-X60003-35———
34INJECTOR 4—W44—0.5OEM-X60003-36———
4Ignition 4—W38—0.5OEM-X60005-9———
5GP out 1 (GND)—W53—0.5OEM-X60001-1———
6GP out 2 (GND)—W54—0.5OEM-X60002-23———
7GP out 3 (GND)—W55—0.5OEM-X60004-10———
8GP out 4 (GND)—W58—0.5OEM-X60002-19———
9Engine gnd—W9—0.85SP-GND-1———

MAXXECUGEN2T-MX2

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Ignition 5—W39—0.5OEM-X60005-8———
10WBO2 Sensor 1 VS————————
11WBO2 Sensor 1 COM/VREF————————
12GP OUT 7 / WBO2 Sensor 1 H-—W56—0.5OEM-X60002-1———
13AIN 9—W71—0.5OEM-X60002-18———
14AIN 10—W72—0.5OEM-X60003-24———
15AIN 11—W73—0.5OEM-X60003-22———
16AIN 12—W74—0.5OEM-X60003-27———
17AIN 13————————
18WBO2 sensor 1 RCAL————————
19WBO2 sensor 1 IP————————
2Ignition 6—W40—0.5OEM-X60005-7———
2012V WBO2 sensor 1 H+————————
21WBO2 sensor 1 SHIELD————————
22AIN 14————————
23AIN 15————————
2412V supply 3————————
2512V supply 2—W4—0.85SP-14V-1———
26KNOCK1 SHIELD————————
27KNOCK 1-————————
28KNOCK 1+—W33—0.5OEM-X60003-29———
29KNOCK 2 SHIELD————————
3GP out 6 (GND)—W60—0.5OEM-X60003-40———
30KNOCK 2-————————
31KNOCK 2+—W34—0.5OEM-X60003-30———
32AIN 16————————
33INJECTOR 5—W45—0.5OEM-X60003-37———
34INJECTOR 6—W46—0.5OEM-X60003-38———
4AIN 6—W68—0.5OEM-X60002-14———
5AIN 7—W69—0.5OEM-X60002-15———
6AIN 8—W70—0.5OEM-X60002-16———
7GP out 13 (H-BRIDGE 1)—W49—0.5OEM-X60003-43———
8GP out 14 (H-BRIDGE 1)—W50—0.5OEM-X60003-44———
9Engine gnd—W10—0.85SP-GND-1———

MAXXECUGEN2T-MX3

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1GP out 15 (H-BRIDGE 2)—W51—0.5OEM-X60003-46———
10WBO2 sensor 2 VS————————
11WBO2 sensor 2 COM/VREF————————
12GP Out 8 (GND) / WBO2 Sensor 2 H-—W57—0.5OEM-X60002-13———
14GP OUT 9 (12V)————————
15GP OUT 10 (12V)————————
16GP OUT 11 (12V)————————
17GP OUT 12 (12V)————————
18WBO2 sensor 2 RCAL————————
19WBO2 sensor 2 IP————————
2GP out 16 (H-BRIDGE 2)—W52—0.5OEM-X60003-47———
2012V WBO2 sensor 2 (H+)————————
21Digital/VR 5 SIGNAL +————————
22Digital/VR 5 SIGNAL -————————
23Digital/VR 5 SHIELD————————
24CAN 2 L————————
25CAN 2 H————————
26Digital/VR 6 SIGNAL +————————
27Digital/VR 6 SIGNAL -————————
28Digital/VR 6 SHIELD————————
29INJECTOR 7—W61—0.5OEM-X60003-41———
3Ignition 7————————
30INJECTOR 8—W62—0.5OEM-X60003-42———
4Ignition 8————————
9Engine gnd—W11—0.85SP-GND-1———

OEM-X60001

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Injector/unloader relay control (terminal 15)—W53—0.5MAXXECUGEN2T-MX1-5———
4Power ground—W5—0.85SP-GND-1———
5Power ground—W6—0.85SP-GND-1———
6Power ground—W7—0.85SP-GND-1———
7Battery constant (terminal 30)————————
8ECU main power (terminal 87 via main relay)—W1—0.85SP-14V-1———
9Voltage supply (injector / fuse carrier)—W2—0.85SP-14V-1———

OEM-X60002

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1O2 sensor heater, bank 1 pre-cat—W56—0.5MAXXECUGEN2T-MX2-12———
13O2 sensor heater, bank 2 pre-cat—W57—0.5MAXXECUGEN2T-MX3-12———
14O2 sensor signal, bank 1 pre-cat—W68—0.5MAXXECUGEN2T-MX2-4———
15O2 sensor signal, bank 2 pre-cat—W69—0.5MAXXECUGEN2T-MX2-5———
16O2 sensor signal, bank 1 post-cat—W70—0.5MAXXECUGEN2T-MX2-6———
18O2 sensor signal, bank 2 post-cat—W71—0.5MAXXECUGEN2T-MX2-13———
19O2 sensor heater, bank 2 post-cat—W58—0.5MAXXECUGEN2T-MX1-8———
20O2 sensor ground, bank 1 pre-cat—W12—0.5SP-0V-1———
21O2 sensor ground, bank 2 pre-cat—W13—0.5SP-0V-1———
22O2 sensor ground, bank 1 post-cat—W14—0.5SP-0V-1———
23Main relay control—W54—0.5MAXXECUGEN2T-MX1-6———
24O2 sensor ground, bank 2 post-cat—W15—0.5SP-0V-1———
7O2 sensor heater, bank 1 post-cat—W59—0.5MAXXECUGEN2T-MX1-17———

OEM-X60003

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Mass air flow (MAF) signal—W63—0.5MAXXECUGEN2T-MX1-26———
10Throttle position sensor 2—W66—0.5MAXXECUGEN2T-MX1-29———
15Exhaust camshaft ground—W16—0.5SP-0V-1———
17MAF ground—W17—0.5SP-0V-1———
18Intake camshaft ground—W18—0.5SP-0V-1———
19Throttle position sensor 1—W64—0.5MAXXECUGEN2T-MX1-27———
2Exhaust camshaft position—W32—0.5MAXXECUGEN2T-MX1-18———
20Throttle ground—W19—0.5SP-0V-1———
21Crankshaft ground—W20—0.5SP-0V-1———
22Intake air temperature (IAT)—W73—0.5MAXXECUGEN2T-MX2-15———
23IAT ground—W21—0.5SP-0V-1———
24Engine coolant temperature (ECT)—W72—0.5MAXXECUGEN2T-MX2-14———
25ECT ground—W22—0.5SP-0V-1———
27Engine oil temperature—W74—0.5MAXXECUGEN2T-MX2-16———
28Oil temperature ground—W23—0.5SP-0V-1———
29Knock sensor, cylinders 1-3 (A)—W33—0.5MAXXECUGEN2T-MX2-28———
30Knock sensor, cylinders 1-3 (B)—W34—0.5MAXXECUGEN2T-MX2-31———
31Knock sensor, cylinders 4-6 (A)————————
32Knock sensor, cylinders 4-6 (B)————————
33Injector cylinder 1—W41—0.5MAXXECUGEN2T-MX1-31———
34Injector cylinder 2—W42—0.5MAXXECUGEN2T-MX1-32———
35Injector cylinder 3—W43—0.5MAXXECUGEN2T-MX1-33———
36Injector cylinder 4—W44—0.5MAXXECUGEN2T-MX1-34———
37Injector cylinder 5—W45—0.5MAXXECUGEN2T-MX2-33———
38Injector cylinder 6—W46—0.5MAXXECUGEN2T-MX2-34———
40VANOS intake solenoid—W60—0.5MAXXECUGEN2T-MX2-3———
41VANOS exhaust solenoid—W61—0.5MAXXECUGEN2T-MX3-29———
42Evap purge valve—W62—0.5MAXXECUGEN2T-MX3-30———
43Throttle motor drive 1 (H-bridge)—W49—0.5MAXXECUGEN2T-MX2-7———
44Throttle motor drive 2 (H-bridge)—W50—0.5MAXXECUGEN2T-MX2-8———
45Map-controlled thermostat————————
46Idle speed control, close—W51—0.5MAXXECUGEN2T-MX3-1———
47Idle speed control, open—W52—0.5MAXXECUGEN2T-MX3-2———
48Knock sensor shield—W47—0.5SP-SHD-1———
49DISA intake flap————————
5Intake camshaft position————————
7Throttle body +5V supply—W27—0.5SP-5V1-1———
8Crankshaft position—W31—0.5MAXXECUGEN2T-MX1-10———

OEM-X60004

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
10Fuel pump relay control—W55—0.5MAXXECUGEN2T-MX1-7———
12Pedal ground 2—W24—0.5SP-0V-1———
13Pedal position signal 2—W67—0.5MAXXECUGEN2T-MX1-30———
14Pedal +5V supply 2—W28—0.5SP-5V1-1———
7Pedal ground 1—W25—0.5SP-0V-1———
8Pedal position signal 1—W65—0.5MAXXECUGEN2T-MX1-28———
9Pedal +5V supply 1—W29—0.5SP-5V1-1———

OEM-X60005

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Ignition coil 3—W37—0.5MAXXECUGEN2T-MX1-3———
2Ignition coil 2—W36—0.5MAXXECUGEN2T-MX1-2———
3Ignition coil 1—W35—0.5MAXXECUGEN2T-MX1-1———
5Ignition ground—W8—0.85SP-GND-1———
7Ignition coil 6—W40—0.5MAXXECUGEN2T-MX2-2———
8Ignition coil 5—W39—0.5MAXXECUGEN2T-MX2-1———
9Ignition coil 4—W38—0.5MAXXECUGEN2T-MX1-4———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W12—0.5OEM-X60002-20———
1——W13—0.5OEM-X60002-21———
1——W14—0.5OEM-X60002-22———
1——W15—0.5OEM-X60002-24———
1——W16—0.5OEM-X60003-15———
1——W17—0.5OEM-X60003-17———
1——W18—0.5OEM-X60003-18———
1——W19—0.5OEM-X60003-20———
1——W20—0.5OEM-X60003-21———
1——W21—0.5OEM-X60003-23———
1——W22—0.5OEM-X60003-25———
1——W23—0.5OEM-X60003-28———
1——W24—0.5OEM-X60004-12———
1——W25—0.5OEM-X60004-7———
1——W26—0.5MAXXECUGEN2T-MX1-14———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-X60001-8———
1——W2—0.85OEM-X60001-9———
1——W3—0.85MAXXECUGEN2T-MX1-25———
1——W4—0.85MAXXECUGEN2T-MX2-25———

SP-5V1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W27—0.5OEM-X60003-7———
1——W28—0.5OEM-X60004-14———
1——W29—0.5OEM-X60004-9———
1——W30—0.5MAXXECUGEN2T-MX1-12———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W5—0.85OEM-X60001-4———
1——W6—0.85OEM-X60001-5———
1——W7—0.85OEM-X60001-6———
1——W8—0.85OEM-X60005-5———
1——W9—0.85MAXXECUGEN2T-MX1-9———
1——W10—0.85MAXXECUGEN2T-MX2-9———
1——W11—0.85MAXXECUGEN2T-MX3-9———

SP-SHD

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W47—0.5OEM-X60003-48———
1——W48—0.5MAXXECUGEN2T-MX1-11———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-X60001-1Injector/unloader relay control (terminal 15)low_side_outMAXXECUGEN2T-MX1-5GP out 1 (GND)low_side_outcorroborated
OEM-X60001-4Power groundgroundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundcorroborated
OEM-X60001-5Power groundgroundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundcorroborated
OEM-X60001-6Power groundgroundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundcorroborated
OEM-X60001-7Battery constant (terminal 30)power_in———corroborated
OEM-X60001-8ECU main power (terminal 87 via main relay)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_incorroborated
OEM-X60001-9Voltage supply (injector / fuse carrier)power_inMAXXECUGEN2T-MX1-25 + MAXXECUGEN2T-MX2-2512V supply 1 + 12V supply 2power_incorroborated
OEM-X60002-1O2 sensor heater, bank 1 pre-catlow_side_outMAXXECUGEN2T-MX2-12GP OUT 7 / WBO2 Sensor 1 H-low_side_outcorroborated
OEM-X60002-13O2 sensor heater, bank 2 pre-catlow_side_outMAXXECUGEN2T-MX3-12GP Out 8 (GND) / WBO2 Sensor 2 H-low_side_outcorroborated
OEM-X60002-14O2 sensor signal, bank 1 pre-catlambda_nb_inMAXXECUGEN2T-MX2-4AIN 6analog_incorroborated
OEM-X60002-15O2 sensor signal, bank 2 pre-catlambda_nb_inMAXXECUGEN2T-MX2-5AIN 7analog_incorroborated
OEM-X60002-16O2 sensor signal, bank 1 post-catlambda_nb_inMAXXECUGEN2T-MX2-6AIN 8analog_incorroborated
OEM-X60002-18O2 sensor signal, bank 2 post-catlambda_nb_inMAXXECUGEN2T-MX2-13AIN 9analog_incorroborated
OEM-X60002-19O2 sensor heater, bank 2 post-catlow_side_outMAXXECUGEN2T-MX1-8GP out 4 (GND)low_side_outcorroborated
OEM-X60002-20O2 sensor ground, bank 1 pre-catsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60002-21O2 sensor ground, bank 2 pre-catsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60002-22O2 sensor ground, bank 1 post-catsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60002-23Main relay controllow_side_outMAXXECUGEN2T-MX1-6GP out 2 (GND)low_side_outcorroborated
OEM-X60002-24O2 sensor ground, bank 2 post-catsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60002-7O2 sensor heater, bank 1 post-catlow_side_outMAXXECUGEN2T-MX1-17GP out 5 (GND)low_side_outcorroborated
OEM-X60003-1Mass air flow (MAF) signalanalog_inMAXXECUGEN2T-MX1-26AIN 1analog_incorroborated
OEM-X60003-10Throttle position sensor 2analog_inMAXXECUGEN2T-MX1-29AIN 4analog_incorroborated
OEM-X60003-15Exhaust camshaft groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-17MAF groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-18Intake camshaft groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-19Throttle position sensor 1analog_inMAXXECUGEN2T-MX1-27AIN 2analog_incorroborated
OEM-X60003-2Exhaust camshaft positiontrigger_inMAXXECUGEN2T-MX1-18Digital/VR 2 SIGNAL +trigger_incorroborated
OEM-X60003-20Throttle groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-21Crankshaft groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-22Intake air temperature (IAT)temp_inMAXXECUGEN2T-MX2-15AIN 11analog_incorroborated
OEM-X60003-23IAT groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-24Engine coolant temperature (ECT)temp_inMAXXECUGEN2T-MX2-14AIN 10analog_incorroborated
OEM-X60003-25ECT groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-27Engine oil temperaturetemp_inMAXXECUGEN2T-MX2-16AIN 12analog_incorroborated
OEM-X60003-28Oil temperature groundsensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60003-29Knock sensor, cylinders 1-3 (A)knock_inMAXXECUGEN2T-MX2-28KNOCK 1+knock_incorroborated
OEM-X60003-30Knock sensor, cylinders 1-3 (B)knock_inMAXXECUGEN2T-MX2-31KNOCK 2+knock_incorroborated
OEM-X60003-31Knock sensor, cylinders 4-6 (A)knock_in———corroborated
OEM-X60003-32Knock sensor, cylinders 4-6 (B)knock_in———corroborated
OEM-X60003-33Injector cylinder 1injector_outMAXXECUGEN2T-MX1-31INJECTOR 1injector_outcorroborated
OEM-X60003-34Injector cylinder 2injector_outMAXXECUGEN2T-MX1-32INJECTOR 2injector_outcorroborated
OEM-X60003-35Injector cylinder 3injector_outMAXXECUGEN2T-MX1-33INJECTOR 3injector_outcorroborated
OEM-X60003-36Injector cylinder 4injector_outMAXXECUGEN2T-MX1-34INJECTOR 4injector_outcorroborated
OEM-X60003-37Injector cylinder 5injector_outMAXXECUGEN2T-MX2-33INJECTOR 5injector_outcorroborated
OEM-X60003-38Injector cylinder 6injector_outMAXXECUGEN2T-MX2-34INJECTOR 6injector_outcorroborated
OEM-X60003-40VANOS intake solenoidlow_side_outMAXXECUGEN2T-MX2-3GP out 6 (GND)low_side_outcorroborated
OEM-X60003-41VANOS exhaust solenoidlow_side_outMAXXECUGEN2T-MX3-29INJECTOR 7injector_outcorroborated
OEM-X60003-42Evap purge valvelow_side_outMAXXECUGEN2T-MX3-30INJECTOR 8injector_outcorroborated
OEM-X60003-43Throttle motor drive 1 (H-bridge)hbridge_outMAXXECUGEN2T-MX2-7GP out 13 (H-BRIDGE 1)hbridge_outcorroborated
OEM-X60003-44Throttle motor drive 2 (H-bridge)hbridge_outMAXXECUGEN2T-MX2-8GP out 14 (H-BRIDGE 1)hbridge_outcorroborated
OEM-X60003-45Map-controlled thermostatlow_side_out———corroborated
OEM-X60003-46Idle speed control, closehbridge_outMAXXECUGEN2T-MX3-1GP out 15 (H-BRIDGE 2)hbridge_outcorroborated
OEM-X60003-47Idle speed control, openhbridge_outMAXXECUGEN2T-MX3-2GP out 16 (H-BRIDGE 2)hbridge_outcorroborated
OEM-X60003-48Knock sensor shieldshieldMAXXECUGEN2T-MX1-11Digital/VR 1 SIGNAL -shieldcorroborated
OEM-X60003-49DISA intake flaplow_side_out———corroborated
OEM-X60003-5Intake camshaft positiontrigger_in———corroborated
OEM-X60003-7Throttle body +5V supplyvrefMAXXECUGEN2T-MX1-12Digital/VR 1 POWER SUPPLYvrefcorroborated
OEM-X60003-8Crankshaft positiontrigger_inMAXXECUGEN2T-MX1-10Digital/VR 1 SIGNAL +trigger_incorroborated
OEM-X60004-10Fuel pump relay controllow_side_outMAXXECUGEN2T-MX1-7GP out 3 (GND)low_side_outcorroborated
OEM-X60004-12Pedal ground 2sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60004-13Pedal position signal 2analog_inMAXXECUGEN2T-MX1-30AIN 5analog_incorroborated
OEM-X60004-14Pedal +5V supply 2vrefMAXXECUGEN2T-MX1-12Digital/VR 1 POWER SUPPLYvrefcorroborated
OEM-X60004-7Pedal ground 1sensor_groundMAXXECUGEN2T-MX1-14SENSOR GNDsensor_groundcorroborated
OEM-X60004-8Pedal position signal 1analog_inMAXXECUGEN2T-MX1-28AIN 3analog_incorroborated
OEM-X60004-9Pedal +5V supply 1vrefMAXXECUGEN2T-MX1-12Digital/VR 1 POWER SUPPLYvrefcorroborated
OEM-X60005-1Ignition coil 3ignition_outMAXXECUGEN2T-MX1-3Ignition 3ignition_outcorroborated
OEM-X60005-2Ignition coil 2ignition_outMAXXECUGEN2T-MX1-2Ignition 2ignition_outcorroborated
OEM-X60005-3Ignition coil 1ignition_outMAXXECUGEN2T-MX1-1Ignition 1ignition_outcorroborated
OEM-X60005-5Ignition groundgroundMAXXECUGEN2T-MX1-9 + MAXXECUGEN2T-MX2-9 + MAXXECUGEN2T-MX3-9Engine gnd + Engine gnd + Engine gndgroundcorroborated
OEM-X60005-7Ignition coil 6ignition_outMAXXECUGEN2T-MX2-2Ignition 6ignition_outcorroborated
OEM-X60005-8Ignition coil 5ignition_outMAXXECUGEN2T-MX2-1Ignition 5ignition_outcorroborated
OEM-X60005-9Ignition coil 4ignition_outMAXXECUGEN2T-MX1-4Ignition 4ignition_outcorroborated

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-X60001-8SP-14V-10.85no routeECU main power (terminal 87 via main relay)—
W2OEM-X60001-9SP-14V-10.85no routeVoltage supply (injector / fuse carrier)—
W3SP-14V-1MAXXECUGEN2T-MX1-250.85no route12V supply 1—
W4SP-14V-1MAXXECUGEN2T-MX2-250.85no route12V supply 2—
W5OEM-X60001-4SP-GND-10.85no routePower ground—
W6OEM-X60001-5SP-GND-10.85no routePower ground—
W7OEM-X60001-6SP-GND-10.85no routePower ground—
W8OEM-X60005-5SP-GND-10.85no routeIgnition ground—
W9SP-GND-1MAXXECUGEN2T-MX1-90.85no routeEngine gnd—
W10SP-GND-1MAXXECUGEN2T-MX2-90.85no routeEngine gnd—
W11SP-GND-1MAXXECUGEN2T-MX3-90.85no routeEngine gnd—
W12OEM-X60002-20SP-0V-10.5no routeO2 sensor ground, bank 1 pre-cat—
W13OEM-X60002-21SP-0V-10.5no routeO2 sensor ground, bank 2 pre-cat—
W14OEM-X60002-22SP-0V-10.5no routeO2 sensor ground, bank 1 post-cat—
W15OEM-X60002-24SP-0V-10.5no routeO2 sensor ground, bank 2 post-cat—
W16OEM-X60003-15SP-0V-10.5no routeExhaust camshaft ground—
W17OEM-X60003-17SP-0V-10.5no routeMAF ground—
W18OEM-X60003-18SP-0V-10.5no routeIntake camshaft ground—
W19OEM-X60003-20SP-0V-10.5no routeThrottle ground—
W20OEM-X60003-21SP-0V-10.5no routeCrankshaft ground—
W21OEM-X60003-23SP-0V-10.5no routeIAT ground—
W22OEM-X60003-25SP-0V-10.5no routeECT ground—
W23OEM-X60003-28SP-0V-10.5no routeOil temperature ground—
W24OEM-X60004-12SP-0V-10.5no routePedal ground 2—
W25OEM-X60004-7SP-0V-10.5no routePedal ground 1—
W26SP-0V-1MAXXECUGEN2T-MX1-140.5no routeSENSOR GND—
W27OEM-X60003-7SP-5V1-10.5no routeThrottle body +5V supply—
W28OEM-X60004-14SP-5V1-10.5no routePedal +5V supply 2—
W29OEM-X60004-9SP-5V1-10.5no routePedal +5V supply 1—
W30SP-5V1-1MAXXECUGEN2T-MX1-120.5no routeDigital/VR 1 POWER SUPPLY—
W31OEM-X60003-8MAXXECUGEN2T-MX1-100.5no routeCrankshaft position—
W32OEM-X60003-2MAXXECUGEN2T-MX1-180.5no routeExhaust camshaft position—
W33OEM-X60003-29MAXXECUGEN2T-MX2-280.5no routeKnock sensor, cylinders 1-3 (A)—
W34OEM-X60003-30MAXXECUGEN2T-MX2-310.5no routeKnock sensor, cylinders 1-3 (B)—
W35OEM-X60005-3MAXXECUGEN2T-MX1-10.5no routeIgnition coil 1—
W36OEM-X60005-2MAXXECUGEN2T-MX1-20.5no routeIgnition coil 2—
W37OEM-X60005-1MAXXECUGEN2T-MX1-30.5no routeIgnition coil 3—
W38OEM-X60005-9MAXXECUGEN2T-MX1-40.5no routeIgnition coil 4—
W39OEM-X60005-8MAXXECUGEN2T-MX2-10.5no routeIgnition coil 5—
W40OEM-X60005-7MAXXECUGEN2T-MX2-20.5no routeIgnition coil 6—
W41OEM-X60003-33MAXXECUGEN2T-MX1-310.5no routeInjector cylinder 1—
W42OEM-X60003-34MAXXECUGEN2T-MX1-320.5no routeInjector cylinder 2—
W43OEM-X60003-35MAXXECUGEN2T-MX1-330.5no routeInjector cylinder 3—
W44OEM-X60003-36MAXXECUGEN2T-MX1-340.5no routeInjector cylinder 4—
W45OEM-X60003-37MAXXECUGEN2T-MX2-330.5no routeInjector cylinder 5—
W46OEM-X60003-38MAXXECUGEN2T-MX2-340.5no routeInjector cylinder 6—
W47OEM-X60003-48SP-SHD-10.5no routeKnock sensor shield—
W48SP-SHD-1MAXXECUGEN2T-MX1-110.5no routeDigital/VR 1 SIGNAL -—
W49OEM-X60003-43MAXXECUGEN2T-MX2-70.5no routeThrottle motor drive 1 (H-bridge)—
W50OEM-X60003-44MAXXECUGEN2T-MX2-80.5no routeThrottle motor drive 2 (H-bridge)—
W51OEM-X60003-46MAXXECUGEN2T-MX3-10.5no routeIdle speed control, close—
W52OEM-X60003-47MAXXECUGEN2T-MX3-20.5no routeIdle speed control, open—
W53OEM-X60001-1MAXXECUGEN2T-MX1-50.5no routeInjector/unloader relay control (terminal 15)—
W54OEM-X60002-23MAXXECUGEN2T-MX1-60.5no routeMain relay control—
W55OEM-X60004-10MAXXECUGEN2T-MX1-70.5no routeFuel pump relay control—
W56OEM-X60002-1MAXXECUGEN2T-MX2-120.5no routeO2 sensor heater, bank 1 pre-cat—
W57OEM-X60002-13MAXXECUGEN2T-MX3-120.5no routeO2 sensor heater, bank 2 pre-cat—
W58OEM-X60002-19MAXXECUGEN2T-MX1-80.5no routeO2 sensor heater, bank 2 post-cat—
W59OEM-X60002-7MAXXECUGEN2T-MX1-170.5no routeO2 sensor heater, bank 1 post-cat—
W60OEM-X60003-40MAXXECUGEN2T-MX2-30.5no routeVANOS intake solenoid—
W61OEM-X60003-41MAXXECUGEN2T-MX3-290.5no routeVANOS exhaust solenoid—
W62OEM-X60003-42MAXXECUGEN2T-MX3-300.5no routeEvap purge valve—
W63OEM-X60003-1MAXXECUGEN2T-MX1-260.5no routeMass air flow (MAF) signal—
W64OEM-X60003-19MAXXECUGEN2T-MX1-270.5no routeThrottle position sensor 1—
W65OEM-X60004-8MAXXECUGEN2T-MX1-280.5no routePedal position signal 1—
W66OEM-X60003-10MAXXECUGEN2T-MX1-290.5no routeThrottle position sensor 2—
W67OEM-X60004-13MAXXECUGEN2T-MX1-300.5no routePedal position signal 2—
W68OEM-X60002-14MAXXECUGEN2T-MX2-40.5no routeO2 sensor signal, bank 1 pre-cat—
W69OEM-X60002-15MAXXECUGEN2T-MX2-50.5no routeO2 sensor signal, bank 2 pre-cat—
W70OEM-X60002-16MAXXECUGEN2T-MX2-60.5no routeO2 sensor signal, bank 1 post-cat—
W71OEM-X60002-18MAXXECUGEN2T-MX2-130.5no routeO2 sensor signal, bank 2 post-cat—
W72OEM-X60003-24MAXXECUGEN2T-MX2-140.5no routeEngine coolant temperature (ECT)—
W73OEM-X60003-22MAXXECUGEN2T-MX2-150.5no routeIntake air temperature (IAT)—
W74OEM-X60003-27MAXXECUGEN2T-MX2-160.5no routeEngine oil temperature—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit
connectorBMW-E46-MS43-CONNBMWE46 DME (MS43) harness connector1.000ea

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (9)

SeverityCodeSubjectMessage
errorREQUIRED_UNMAPPEDOEM-X60003-5Required OEM function "Intake camshaft position" (trigger_in) is not connected to the new ECU.
warnDBW_MOTOR_CURRENTMAXXECUGEN2T-MX2-7Cannot confirm MaxxECU GEN2 TRACK can drive the throttle motor: MAXXECUGEN2T-MX2-7 "GP out 13 (H-BRIDGE 1)" is rated 5.0 A, but the motor current at OEM-X60003-43 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A).
warnDBW_MOTOR_CURRENTMAXXECUGEN2T-MX2-8Cannot confirm MaxxECU GEN2 TRACK can drive the throttle motor: MAXXECUGEN2T-MX2-8 "GP out 14 (H-BRIDGE 1)" is rated 5.0 A, but the motor current at OEM-X60003-44 is unknown. Add the motor's peak current from a source, or measure the motor resistance: peak ≈ 14 V ÷ R (Hondata measured 4.9 A for a Civic Si body, 10.4 A for a ZDX body; holding current is about 1 A).
infoNET_FAMILYOEM-X60003-22 ↔ MAXXECUGEN2T-MX2-15OEM-X60003-22 "Intake air temperature (IAT)" [temp_in] is wired to MAXXECUGEN2T-MX2-15 "AIN 11" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one.
infoNET_FAMILYOEM-X60003-24 ↔ MAXXECUGEN2T-MX2-14OEM-X60003-24 "Engine coolant temperature (ECT)" [temp_in] is wired to MAXXECUGEN2T-MX2-14 "AIN 10" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one.
infoNET_FAMILYOEM-X60003-27 ↔ MAXXECUGEN2T-MX2-16OEM-X60003-27 "Engine oil temperature" [temp_in] is wired to MAXXECUGEN2T-MX2-16 "AIN 12" [analog_in]. Thermistor on a plain analog input needs a pull-up; check the channel can enable one.
infoNET_FAMILYOEM-X60003-41 ↔ MAXXECUGEN2T-MX3-29OEM-X60003-41 "VANOS exhaust solenoid" [low_side_out] is wired to MAXXECUGEN2T-MX3-29 "INJECTOR 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-X60003-42 ↔ MAXXECUGEN2T-MX3-30OEM-X60003-42 "Evap purge valve" [low_side_out] is wired to MAXXECUGEN2T-MX3-30 "INJECTOR 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM4 optional OEM pins are not mapped: OEM-X60003-31 Knock sensor, cylinders 4-6 (A); OEM-X60003-32 Knock sensor, cylinders 4-6 (B); OEM-X60003-45 Map-controlled thermostat; OEM-X60003-49 DISA intake flap

Accepted (1)

CodeSubjectReasonBy
REQUIRED_UNMAPPEDOEM-X60001-7Battery-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 (E46 K-bus/CAN); not documented for this ECU - This car has EWS 3.3 (rolling code) immobilizer; needs a delete/bypass Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Open items: - OEM-X60003 5: Intake camshaft position: no free cam_hall/cam_vr/frequency_in input on MaxxECU MaxxECU GEN2 TRACK Not wired: - OEM-X60001 7: Battery constant (terminal 30): MaxxECU MaxxECU GEN2 TRACK has no battery-constant input; not needed - OEM-X60003 31: Knock sensor, cylinders 4-6 (A): no free knock input on MaxxECU MaxxECU GEN2 TRACK - OEM-X60003 32: Knock sensor, cylinders 4-6 (B): no free knock input on MaxxECU MaxxECU GEN2 TRACK - OEM-X60003 45: Map-controlled thermostat: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU GEN2 TRACK - OEM-X60003 49: DISA intake flap: no free low_side/ls_hs/injector/hbridge on MaxxECU MaxxECU GEN2 TRACK - MAXXECUGEN2T-MX2 24: 12V supply 3: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docMaxxECU GEN2 pinout (RACE MX1–MX4 / TRACK MX1–MX3)http://www.maxxecu.com/webhelp/wirings-maxxecu_gen2_pinout.htmlarchive2026-10-05f689b8b6b08f
2community_copyms4x.net: Siemens MS43 Pinouthttps://www.ms4x.net/index.php?title=Siemens_MS43_Pinout———
2community_copyrusefi wiki: 2002 BMW 325 / 2004 BMW 330Ci E46 DME pinout (M54/MS43)https://github.com/rusefi/rusefi/wiki/2002-BMW-325-and-2004-BMW-330Ci-E46-DME-pinout———