Chevrolet Camaro SS 2010-15 (LS3/L99) → MaxxECU MaxxECU PRO REV10+ (auto)

Chevrolet Camaro SS 2010-15 (LS3/L99) — MaxxECU — MaxxECU PRO

⚠ NOT CHECKED. Don't build from this.

Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08

Before you start

Status	draft · not yet verified: nobody has reported building and running this harness
Open errors	none
Size of the job	102 wires · 10 connectors · 0 part lines
Tools	Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
Order of work	1. 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.

Wire	From	To	Gauge	Cut	Label	Crimp A	Crimp B	Pin A	Pin B	Continuity
W1	OEM-X1-19	SP-14V-1	0.85	☐	☐	☐	☐	☐	☐	☐
W2	OEM-X1-47	SP-14V-1	0.85	☐	☐	☐	☐	☐	☐	☐
W3	SP-14V-1	MAXXECUPRO-C1-M4	0.85	☐	☐	☐	☐	☐	☐	☐
W4	SP-14V-1	MAXXECUPRO-C3-M4	0.85	☐	☐	☐	☐	☐	☐	☐
W5	OEM-X1-73	SP-GND-1	0.85	☐	☐	☐	☐	☐	☐	☐
W6	OEM-X2-78	SP-GND-1	0.85	☐	☐	☐	☐	☐	☐	☐
W7	OEM-X2-79	SP-GND-1	0.85	☐	☐	☐	☐	☐	☐	☐
W8	SP-GND-1	MAXXECUPRO-C1-L4	0.85	☐	☐	☐	☐	☐	☐	☐
W9	SP-GND-1	MAXXECUPRO-C2-H1	0.85	☐	☐	☐	☐	☐	☐	☐
W10	SP-GND-1	MAXXECUPRO-C2-H2	0.85	☐	☐	☐	☐	☐	☐	☐
W11	SP-GND-1	MAXXECUPRO-C2-H3	0.85	☐	☐	☐	☐	☐	☐	☐
W12	SP-GND-1	MAXXECUPRO-C3-L4	0.85	☐	☐	☐	☐	☐	☐	☐
W13	OEM-X1-11	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W14	OEM-X1-23	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W15	OEM-X1-30	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W16	OEM-X1-38	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W17	OEM-X1-49	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W18	OEM-X2-22	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W19	OEM-X2-34	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W20	OEM-X2-35	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W21	OEM-X2-52	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W22	OEM-X2-53	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W23	OEM-X2-56	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W24	OEM-X2-60	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W25	OEM-X2-66	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W26	OEM-X2-69	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W27	SP-0V-1	MAXXECUPRO-C1-H1	0.5	☐	☐	☐	☐	☐	☐	☐
W28	SP-0V-1	MAXXECUPRO-C1-H2	0.5	☐	☐	☐	☐	☐	☐	☐
W29	SP-0V-1	MAXXECUPRO-C3-J2	0.5	☐	☐	☐	☐	☐	☐	☐
W30	SP-0V-1	MAXXECUPRO-C3-J3	0.5	☐	☐	☐	☐	☐	☐	☐
W31	OEM-X1-33	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W32	OEM-X1-34	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W33	OEM-X1-36	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W34	OEM-X1-56	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W35	OEM-X2-2	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W36	OEM-X2-3	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W37	OEM-X2-41	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W38	OEM-X2-43	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W39	OEM-X2-44	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W40	SP-5V1-1	MAXXECUPRO-C1-G1	0.5	☐	☐	☐	☐	☐	☐	☐
W41	OEM-X2-68	MAXXECUPRO-C1-H3	0.5	☐	☐	☐	☐	☐	☐	☐
W42	OEM-X2-64	MAXXECUPRO-C1-H4	0.5	☐	☐	☐	☐	☐	☐	☐
W43	OEM-X2-26	MAXXECUPRO-C4-F2	0.5	☐	☐	☐	☐	☐	☐	☐
W44	OEM-X2-27	MAXXECUPRO-C4-F3	0.5	☐	☐	☐	☐	☐	☐	☐
W45	OEM-X2-70	MAXXECUPRO-C1-A2	0.5	☐	☐	☐	☐	☐	☐	☐
W46	OEM-X2-73	MAXXECUPRO-C1-A3	0.5	☐	☐	☐	☐	☐	☐	☐
W47	OEM-X2-77	MAXXECUPRO-C1-B2	0.5	☐	☐	☐	☐	☐	☐	☐
W48	OEM-X2-76	MAXXECUPRO-C1-B3	0.5	☐	☐	☐	☐	☐	☐	☐
W49	OEM-X2-75	MAXXECUPRO-C1-C2	0.5	☐	☐	☐	☐	☐	☐	☐
W50	OEM-X2-74	MAXXECUPRO-C1-C3	0.5	☐	☐	☐	☐	☐	☐	☐
W51	OEM-X2-72	MAXXECUPRO-C1-D2	0.5	☐	☐	☐	☐	☐	☐	☐
W52	OEM-X2-71	MAXXECUPRO-C1-D3	0.5	☐	☐	☐	☐	☐	☐	☐
W53	OEM-X2-20	MAXXECUPRO-C1-K1	0.5	☐	☐	☐	☐	☐	☐	☐
W54	OEM-X2-37	MAXXECUPRO-C1-K2	0.5	☐	☐	☐	☐	☐	☐	☐
W55	OEM-X2-38	MAXXECUPRO-C1-M1	0.5	☐	☐	☐	☐	☐	☐	☐
W56	OEM-X2-39	MAXXECUPRO-C1-M2	0.5	☐	☐	☐	☐	☐	☐	☐
W57	OEM-X2-18	MAXXECUPRO-C1-M3	0.5	☐	☐	☐	☐	☐	☐	☐
W58	OEM-X2-19	MAXXECUPRO-C1-L3	0.5	☐	☐	☐	☐	☐	☐	☐
W59	OEM-X2-40	MAXXECUPRO-C1-L2	0.5	☐	☐	☐	☐	☐	☐	☐
W60	OEM-X2-17	MAXXECUPRO-C1-L1	0.5	☐	☐	☐	☐	☐	☐	☐
W61	OEM-X2-6	MAXXECUPRO-C3-L3	0.5	☐	☐	☐	☐	☐	☐	☐
W62	OEM-X2-5	MAXXECUPRO-C3-L2	0.5	☐	☐	☐	☐	☐	☐	☐
W63	OEM-X1-50	MAXXECUPRO-C1-B4	0.5	☐	☐	☐	☐	☐	☐	☐
W64	OEM-X1-59	MAXXECUPRO-C1-C4	0.5	☐	☐	☐	☐	☐	☐	☐
W65	OEM-X1-17	MAXXECUPRO-C1-D4	0.5	☐	☐	☐	☐	☐	☐	☐
W66	OEM-X1-51	MAXXECUPRO-C1-E4	0.5	☐	☐	☐	☐	☐	☐	☐
W67	OEM-X1-52	MAXXECUPRO-C1-A1	0.5	☐	☐	☐	☐	☐	☐	☐
W68	OEM-X1-58	MAXXECUPRO-C1-B1	0.5	☐	☐	☐	☐	☐	☐	☐
W69	OEM-X1-63	MAXXECUPRO-C1-C1	0.5	☐	☐	☐	☐	☐	☐	☐
W70	OEM-X1-64	MAXXECUPRO-C1-D1	0.5	☐	☐	☐	☐	☐	☐	☐
W71	OEM-X1-65	MAXXECUPRO-C3-E1	0.5	☐	☐	☐	☐	☐	☐	☐
W72	OEM-X2-12	MAXXECUPRO-C1-A4	0.5	☐	☐	☐	☐	☐	☐	☐
W73	OEM-X2-13	MAXXECUPRO-C4-G1	0.5	☐	☐	☐	☐	☐	☐	☐
W74	OEM-X2-10	MAXXECUPRO-C4-G2	0.5	☐	☐	☐	☐	☐	☐	☐
W75	OEM-X2-14	MAXXECUPRO-C4-G3	0.5	☐	☐	☐	☐	☐	☐	☐
W76	OEM-X2-9	MAXXECUPRO-C4-G4	0.5	☐	☐	☐	☐	☐	☐	☐
W77	OEM-X2-11	MAXXECUPRO-C4-H1	0.5	☐	☐	☐	☐	☐	☐	☐
W78	OEM-X1-61	MAXXECUPRO-C4-H2	0.5	☐	☐	☐	☐	☐	☐	☐
W79	OEM-X1-68	MAXXECUPRO-C4-H3	0.5	☐	☐	☐	☐	☐	☐	☐
W80	OEM-X2-16	MAXXECUPRO-C4-H4	0.5	☐	☐	☐	☐	☐	☐	☐
W81	OEM-X2-32	MAXXECUPRO-C3-K2	0.5	☐	☐	☐	☐	☐	☐	☐
W82	OEM-X2-61	MAXXECUPRO-C3-K1	0.5	☐	☐	☐	☐	☐	☐	☐
W83	OEM-X2-8	MAXXECUPRO-C3-L1	0.5	☐	☐	☐	☐	☐	☐	☐
W84	OEM-X1-41	MAXXECUPRO-C1-J3	0.5	☐	☐	☐	☐	☐	☐	☐
W85	OEM-X2-58	MAXXECUPRO-C1-J4	0.5	☐	☐	☐	☐	☐	☐	☐
W86	OEM-X1-29	MAXXECUPRO-C1-G2	0.5	☐	☐	☐	☐	☐	☐	☐
W87	OEM-X2-65	MAXXECUPRO-C3-C3	0.5	☐	☐	☐	☐	☐	☐	☐
W88	OEM-X1-32	MAXXECUPRO-C3-D1	0.5	☐	☐	☐	☐	☐	☐	☐
W89	OEM-X2-63	MAXXECUPRO-C3-D2	0.5	☐	☐	☐	☐	☐	☐	☐
W90	OEM-X1-10	MAXXECUPRO-C3-D3	0.5	☐	☐	☐	☐	☐	☐	☐
W91	OEM-X1-69	MAXXECUPRO-C3-E2	0.5	☐	☐	☐	☐	☐	☐	☐
W92	OEM-X2-57	MAXXECUPRO-C3-E3	0.5	☐	☐	☐	☐	☐	☐	☐
W93	OEM-X2-59	MAXXECUPRO-C3-F2	0.5	☐	☐	☐	☐	☐	☐	☐
W94	OEM-X2-21	MAXXECUPRO-C1-J1	0.5	☐	☐	☐	☐	☐	☐	☐
W95	OEM-X1-37	MAXXECUPRO-C1-J2	0.5	☐	☐	☐	☐	☐	☐	☐
W96	OEM-X1-12	MAXXECUPRO-C3-F3	0.5	☐	☐	☐	☐	☐	☐	☐
W97	OEM-X1-24	MAXXECUPRO-C4-C2	0.5	☐	☐	☐	☐	☐	☐	☐
W98	OEM-X2-50	MAXXECUPRO-C4-C1	0.5	☐	☐	☐	☐	☐	☐	☐
W99	OEM-X1-71	MAXXECUPRO-C1-K3	0.5	☐	☐	☐	☐	☐	☐	☐
W100	OEM-X1-72	MAXXECUPRO-C1-K4	0.5	☐	☐	☐	☐	☐	☐	☐
W101	OEM-X1-9	MAXXECUPRO-C3-A3	0.5	☐	☐	☐	☐	☐	☐	☐
W102	OEM-X2-33	MAXXECUPRO-C3-A4	0.5	☐	☐	☐	☐	☐	☐	☐

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 A	Probe B	Expect	Why
1	MAXXECUPRO-C1-G1	MAXXECUPRO-C1-L4	open (OL)	5 V sensor reference must not touch power ground
2	MAXXECUPRO-C1-M4	MAXXECUPRO-C1-L4	open (OL)	+12 V supply must not touch power ground
3	MAXXECUPRO-C1-H1	MAXXECUPRO-C1-G1	open (OL)	sensor ground must not touch 5 V sensor reference
4	MAXXECUPRO-C1-H1	MAXXECUPRO-C1-M4	open (OL)	sensor ground must not touch +12 V supply
5	MAXXECUPRO-C1-M4	MAXXECUPRO-C1-G1	open (OL)	+12 V supply must not touch 5 V sensor reference

Revisions

Rev	Label	By	Date
No revisions yet.

Schematic

Connectors

MAXXECUPRO-C1

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
A1	GPO 5	—	W67	—	0.5	OEM-X1-52	—	—	—
A2	IGN 1	—	W45	—	0.5	OEM-X2-70	—	—	—
A3	IGN 2	—	W46	—	0.5	OEM-X2-73	—	—	—
A4	GPO 8/TACHO	—	W72	—	0.5	OEM-X2-12	—	—	—
B1	GPO 6	—	W68	—	0.5	OEM-X1-58	—	—	—
B2	IGN 3	—	W47	—	0.5	OEM-X2-77	—	—	—
B3	IGN 4	—	W48	—	0.5	OEM-X2-76	—	—	—
B4	GPO 1	—	W63	—	0.5	OEM-X1-50	—	—	—
C1	GPO 7	—	W69	—	0.5	OEM-X1-63	—	—	—
C2	IGN 5	—	W49	—	0.5	OEM-X2-75	—	—	—
C3	IGN 6	—	W50	—	0.5	OEM-X2-74	—	—	—
C4	GPO 2	—	W64	—	0.5	OEM-X1-59	—	—	—
D1	WBO2 Heater-	—	W70	—	0.5	OEM-X1-64	—	—	—
D2	IGN 7	—	W51	—	0.5	OEM-X2-72	—	—	—
D3	IGN 8	—	W52	—	0.5	OEM-X2-71	—	—	—
D4	GPO 3	—	W65	—	0.5	OEM-X1-17	—	—	—
E1	CAN H	—	—	—	—	—	—	—	—
E2	CAN L	—	—	—	—	—	—	—	—
E3	GND Shield	—	—	—	—	—	—	—	—
E4	GPO 4	—	W66	—	0.5	OEM-X1-51	—	—	—
F1	CLT	—	—	—	—	—	—	—	—
F2	IAT	—	—	—	—	—	—	—	—
F3	WBO2 VREF	—	—	—	—	—	—	—	—
F4	WBO2 VS	—	—	—	—	—	—	—	—
G1	+5V sensor supply	—	W40	—	0.5	SP-5V1-1	—	—	—
G2	TPS/AIN	—	W86	—	0.5	OEM-X1-29	—	—	—
G3	WBO2 IP	—	—	—	—	—	—	—	—
G4	WBO2 RCAL	—	—	—	—	—	—	—	—
H1	Sensor GND	—	W27	—	0.5	SP-0V-1	—	—	—
H2	Trigger GND	—	W28	—	0.5	SP-0V-1	—	—	—
H3	TRIGGER	—	W41	—	0.5	OEM-X2-68	—	—	—
H4	HOME	—	W42	—	0.5	OEM-X2-64	—	—	—
J1	AIN 1 (temperature)	—	W94	—	0.5	OEM-X2-21	—	—	—
J2	AIN 2 (temperature)	—	W95	—	0.5	OEM-X1-37	—	—	—
J3	AIN 3 (0-5V)	—	W84	—	0.5	OEM-X1-41	—	—	—
J4	AIN 4 (0-5V)	—	W85	—	0.5	OEM-X2-58	—	—	—
K1	INJ 1	—	W53	—	0.5	OEM-X2-20	—	—	—
K2	INJ 2	—	W54	—	0.5	OEM-X2-37	—	—	—
K3	DIN/VR 1	—	W99	—	0.5	OEM-X1-71	—	—	—
K4	DIN/VR 2	—	W100	—	0.5	OEM-X1-72	—	—	—
L1	INJ 8	—	W60	—	0.5	OEM-X2-17	—	—	—
L2	INJ 7	—	W59	—	0.5	OEM-X2-40	—	—	—
L3	INJ 6	—	W58	—	0.5	OEM-X2-19	—	—	—
L4	Engine GND	—	W8	—	0.85	SP-GND-1	—	—	—
M1	INJ 3	—	W55	—	0.5	OEM-X2-38	—	—	—
M2	INJ 4	—	W56	—	0.5	OEM-X2-39	—	—	—
M3	INJ 5	—	W57	—	0.5	OEM-X2-18	—	—	—
M4	+12V ECU power supply	—	W3	—	0.85	SP-14V-1	—	—	—

MAXXECUPRO-C2

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
A1	EGT 1+	—	—	—	—	—	—	—	—
A2	EGT 2+	—	—	—	—	—	—	—	—
A3	EGT 3+	—	—	—	—	—	—	—	—
A4	EGT 4+	—	—	—	—	—	—	—	—
B1	EGT 1-	—	—	—	—	—	—	—	—
B2	EGT 2-	—	—	—	—	—	—	—	—
B3	EGT 3-	—	—	—	—	—	—	—	—
B4	EGT 4-	—	—	—	—	—	—	—	—
C1	EGT 5+	—	—	—	—	—	—	—	—
C2	EGT 6+	—	—	—	—	—	—	—	—
C3	EGT 7+	—	—	—	—	—	—	—	—
C4	EGT 8+	—	—	—	—	—	—	—	—
D1	EGT 5-	—	—	—	—	—	—	—	—
D2	EGT 6-	—	—	—	—	—	—	—	—
D3	EGT 7-	—	—	—	—	—	—	—	—
D4	EGT 8-	—	—	—	—	—	—	—	—
E1	EGT 9+	—	—	—	—	—	—	—	—
E2	EGT 10+	—	—	—	—	—	—	—	—
E3	EGT 11+	—	—	—	—	—	—	—	—
E4	EGT 12+	—	—	—	—	—	—	—	—
F1	EGT 9-	—	—	—	—	—	—	—	—
F2	EGT 10-	—	—	—	—	—	—	—	—
F3	EGT 11-	—	—	—	—	—	—	—	—
F4	EGT 12-	—	—	—	—	—	—	—	—
H1	Engine ground 3	—	W9	—	0.85	SP-GND-1	—	—	—
H2	Engine ground 3	—	W10	—	0.85	SP-GND-1	—	—	—
H3	Engine ground 3	—	W11	—	0.85	SP-GND-1	—	—	—

MAXXECUPRO-C3

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
A1	DIN/VR 4	—	—	—	—	—	—	—	—
A2	DIN/VR 5	—	—	—	—	—	—	—	—
A3	DIN 6 (SWITCH)	—	W101	—	0.5	OEM-X1-9	—	—	—
A4	DIN 7 (SWITCH)	—	W102	—	0.5	OEM-X2-33	—	—	—
B1	WBO2 2 RCAL	—	—	—	—	—	—	—	—
B2	WBO2 2 IP	—	—	—	—	—	—	—	—
B3	WBO2 2 VS	—	—	—	—	—	—	—	—
B4	WBO2 2 COM	—	—	—	—	—	—	—	—
C1	WBO2 2 Shield	—	—	—	—	—	—	—	—
C2	+5V SENSOR SUPPLY 2	—	—	—	—	—	—	—	—
C3	ANALOG IN 5 (0-5V)	—	W87	—	0.5	OEM-X2-65	—	—	—
C4	GPO 19 (12V)	—	—	—	—	—	—	—	—
D1	ANALOG IN 6 (0-5V)	—	W88	—	0.5	OEM-X1-32	—	—	—
D2	ANALOG IN 7 (0-5V)	—	W89	—	0.5	OEM-X2-63	—	—	—
D3	ANALOG IN 8 (0-5V)	—	W90	—	0.5	OEM-X1-10	—	—	—
D4	GPO 20 (12V)	—	—	—	—	—	—	—	—
E1	GPO 10/WBO2 2 HTR	—	W71	—	0.5	OEM-X1-65	—	—	—
E2	ANALOG IN 9 (0-5V)	—	W91	—	0.5	OEM-X1-69	—	—	—
E3	ANALOG IN 10 (0-5V)	—	W92	—	0.5	OEM-X2-57	—	—	—
E4	GPO 21 (12V)	—	—	—	—	—	—	—	—
F1	INJECTOR OUT 15	—	—	—	—	—	—	—	—
F2	ANALOG IN 11 (0-5V)	—	W93	—	0.5	OEM-X2-59	—	—	—
F3	ANALOG IN 12 (0-5V)	—	W96	—	0.5	OEM-X1-12	—	—	—
F4	GPO 22 (12V)	—	—	—	—	—	—	—	—
G1	INJECTOR OUT 14	—	—	—	—	—	—	—	—
G2	IGNITION OUT 11	—	—	—	—	—	—	—	—
G3	IGNITION OUT 9	—	—	—	—	—	—	—	—
G4	GPO 15 (12V)	—	—	—	—	—	—	—	—
H1	INJECTOR OUT 13	—	—	—	—	—	—	—	—
H2	IGNITION OUT 12	—	—	—	—	—	—	—	—
H3	IGNITION OUT 10	—	—	—	—	—	—	—	—
H4	GPO 16 (12V)	—	—	—	—	—	—	—	—
J1	INJECTOR OUT 16	—	—	—	—	—	—	—	—
J2	SENSOR GND	—	W29	—	0.5	SP-0V-1	—	—	—
J3	SENSOR GND	—	W30	—	0.5	SP-0V-1	—	—	—
J4	GPO 17 (12V)	—	—	—	—	—	—	—	—
K1	INJECTOR OUT 10	—	W82	—	0.5	OEM-X2-61	—	—	—
K2	INJECTOR OUT 9	—	W81	—	0.5	OEM-X2-32	—	—	—
K3	KEY IN 12V	—	—	—	—	—	—	—	—
K4	GPO 18 (12V)	—	—	—	—	—	—	—	—
L1	INJECTOR OUT 11	—	W83	—	0.5	OEM-X2-8	—	—	—
L2	GPO 12/MOTOR 1 +	—	W62	—	0.5	OEM-X2-5	—	—	—
L3	GPO 11/MOTOR 1 -	—	W61	—	0.5	OEM-X2-6	—	—	—
L4	ENGINE GROUND 2	—	W12	—	0.85	SP-GND-1	—	—	—
M1	INJECTOR OUT 12	—	—	—	—	—	—	—	—
M2	GPO 13/MOTOR 2 +	—	—	—	—	—	—	—	—
M3	GPO 14/MOTOR 2 -	—	—	—	—	—	—	—	—
M4	12V ECU 2	—	W4	—	0.85	SP-14V-1	—	—	—

MAXXECUPRO-C4

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
A1	CAN 2 H	—	—	—	—	—	—	—	—
A2	CAN 2 L	—	—	—	—	—	—	—	—
A3	0-5V out 1	—	—	—	—	—	—	—	—
A4	0-5V out 2	—	—	—	—	—	—	—	—
B1	AIN 18 (0-5V)	—	—	—	—	—	—	—	—
B2	AIN 17 (0-5V)	—	—	—	—	—	—	—	—
B3	AIN 16 (0-5V)	—	—	—	—	—	—	—	—
B4	AIN 15 (0-5V)	—	—	—	—	—	—	—	—
C1	AIN 14 (0-5V)	—	W98	—	0.5	OEM-X2-50	—	—	—
C2	AIN 13 (0-5V)	—	W97	—	0.5	OEM-X1-24	—	—	—
C3	AIN 19 (temp)	—	—	—	—	—	—	—	—
C4	AIN 20 (temp)	—	—	—	—	—	—	—	—
D1	AIN 21 (temp)	—	—	—	—	—	—	—	—
D2	AIN 22 (temp)	—	—	—	—	—	—	—	—
D3	DIN 8 (switch)	—	—	—	—	—	—	—	—
D4	DIN 9 (switch)	—	—	—	—	—	—	—	—
E1	DIN 10 (switch)	—	—	—	—	—	—	—	—
E2	DIN 11 (switch)	—	—	—	—	—	—	—	—
E3	+5V sensor supply 3	—	—	—	—	—	—	—	—
E4	5-10V sensor supply	—	—	—	—	—	—	—	—
F1	GPO 23-30 flyback	—	—	—	—	—	—	—	—
F2	Knock 1	—	W43	—	0.5	OEM-X2-26	—	—	—
F3	Knock 2	—	W44	—	0.5	OEM-X2-27	—	—	—
F4	Sensor GND3 / knock ground	—	—	—	—	—	—	—	—
G1	GPO 23	—	W73	—	0.5	OEM-X2-13	—	—	—
G2	GPO 24	—	W74	—	0.5	OEM-X2-10	—	—	—
G3	GPO 25	—	W75	—	0.5	OEM-X2-14	—	—	—
G4	GPO 26	—	W76	—	0.5	OEM-X2-9	—	—	—
H1	GPO 27	—	W77	—	0.5	OEM-X2-11	—	—	—
H2	GPO 28	—	W78	—	0.5	OEM-X1-61	—	—	—
H3	GPO 29	—	W79	—	0.5	OEM-X1-68	—	—	—
H4	GPO 30	—	W80	—	0.5	OEM-X2-16	—	—	—

OEM-X1

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
10	HO2S signal, bank 1 sensor 2 (post-cat)	—	W90	—	0.5	MAXXECUPRO-C3-D3	—	—	—
11	HO2S low reference, bank 1 sensor 2	—	W13	—	0.5	SP-0V-1	—	—	—
12	A/C refrigerant pressure signal	—	W96	—	0.5	MAXXECUPRO-C3-F3	—	—	—
17	High speed cooling fan relay	—	W65	—	0.5	MAXXECUPRO-C1-D4	—	—	—
19	Ignition 1 voltage (key hot)	—	W1	—	0.85	SP-14V-1	—	—	—
20	Battery positive voltage (batt hot)	—	—	—	—	—	—	—	—
23	APP sensor low reference	—	W14	—	0.5	SP-0V-1	—	—	—
24	Fuel tank pressure signal	—	W97	—	0.5	MAXXECUPRO-C4-C2	—	—	—
29	Accelerator pedal position (APP) sensor 1 signal	—	W86	—	0.5	MAXXECUPRO-C1-G2	—	—	—
30	APP sensor low reference	—	W15	—	0.5	SP-0V-1	—	—	—
32	Accelerator pedal position (APP) sensor 2 signal	—	W88	—	0.5	MAXXECUPRO-C3-D1	—	—	—
33	5V reference (fuel tank pressure)	—	W31	—	0.5	SP-5V1-1	—	—	—
34	5V reference (A/C pressure)	—	W32	—	0.5	SP-5V1-1	—	—	—
36	5V reference (APP sensor)	—	W33	—	0.5	SP-5V1-1	—	—	—
37	Intake air temperature (IAT) signal	—	W95	—	0.5	MAXXECUPRO-C1-J2	—	—	—
38	Intake air temperature (IAT) low reference	—	W16	—	0.5	SP-0V-1	—	—	—
41	Mass air flow (MAF) signal	—	W84	—	0.5	MAXXECUPRO-C1-J3	—	—	—
47	Ignition 1 voltage (key hot)	—	W2	—	0.85	SP-14V-1	—	—	—
48	Tachometer output	—	—	—	—	—	—	—	—
49	HO2S low reference, bank 2 sensor 2	—	W17	—	0.5	SP-0V-1	—	—	—
50	Fuel pump relay control (primary)	—	W63	—	0.5	MAXXECUPRO-C1-B4	—	—	—
51	Fuel pump relay control (secondary)	—	W66	—	0.5	MAXXECUPRO-C1-E4	—	—	—
52	Starter enable relay control	—	W67	—	0.5	MAXXECUPRO-C1-A1	—	—	—
56	5V reference (APP sensor)	—	W34	—	0.5	SP-5V1-1	—	—	—
57	VSS output to ABS (128k)	—	—	—	—	—	—	—	—
58	Low speed cooling fan relay	—	W68	—	0.5	MAXXECUPRO-C1-B1	—	—	—
59	Powertrain relay coil control (main relay)	—	W64	—	0.5	MAXXECUPRO-C1-C4	—	—	—
61	EVAP canister vent solenoid	—	W78	—	0.5	MAXXECUPRO-C4-H2	—	—	—
63	A/C compressor clutch relay	—	W69	—	0.5	MAXXECUPRO-C1-C1	—	—	—
64	HO2S heater low control, bank 2 sensor 2	—	W70	—	0.5	MAXXECUPRO-C1-D1	—	—	—
65	HO2S heater low control, bank 1 sensor 2	—	W71	—	0.5	MAXXECUPRO-C3-E1	—	—	—
68	Malfunction indicator lamp (MIL)	—	W79	—	0.5	MAXXECUPRO-C4-H3	—	—	—
69	HO2S signal, bank 2 sensor 2 (post-cat)	—	W91	—	0.5	MAXXECUPRO-C3-E2	—	—	—
71	VSS high signal (manual trans)	—	W99	—	0.5	MAXXECUPRO-C1-K3	—	—	—
72	VSS low signal (manual trans)	—	W100	—	0.5	MAXXECUPRO-C1-K4	—	—	—
73	Power ground	—	W5	—	0.85	SP-GND-1	—	—	—
9	Brake switch signal	—	W101	—	0.5	MAXXECUPRO-C3-A3	—	—	—

OEM-X2

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
10	Cylinder shutoff solenoid 1 (AFM)	—	W74	—	0.5	MAXXECUPRO-C4-G2	—	—	—
11	Cylinder shutoff solenoid 4 (AFM)	—	W77	—	0.5	MAXXECUPRO-C4-H1	—	—	—
12	HO2S heater low control, bank 1 sensor 1	—	W72	—	0.5	MAXXECUPRO-C1-A4	—	—	—
13	HO2S heater low control, bank 2 sensor 1	—	W73	—	0.5	MAXXECUPRO-C4-G1	—	—	—
14	Cylinder shutoff solenoid 2 (AFM)	—	W75	—	0.5	MAXXECUPRO-C4-G3	—	—	—
16	Camshaft actuator solenoid (VVT)	—	W80	—	0.5	MAXXECUPRO-C4-H4	—	—	—
17	Injector 8	—	W60	—	0.5	MAXXECUPRO-C1-L1	—	—	—
18	Injector 5	—	W57	—	0.5	MAXXECUPRO-C1-M3	—	—	—
19	Injector 6	—	W58	—	0.5	MAXXECUPRO-C1-L3	—	—	—
2	5V reference (crankshaft sensor)	—	W35	—	0.5	SP-5V1-1	—	—	—
20	Injector 1	—	W53	—	0.5	MAXXECUPRO-C1-K1	—	—	—
21	Engine coolant temperature (ECT) signal	—	W94	—	0.5	MAXXECUPRO-C1-J1	—	—	—
22	ECT low reference	—	W18	—	0.5	SP-0V-1	—	—	—
26	Knock sensor 1 signal A	—	W43	—	0.5	MAXXECUPRO-C4-F2	—	—	—
27	Knock sensor 1 signal B	—	W44	—	0.5	MAXXECUPRO-C4-F3	—	—	—
29	Knock sensor 2 signal A	—	—	—	—	—	—	—	—
3	5V reference (throttle body)	—	W36	—	0.5	SP-5V1-1	—	—	—
30	Knock sensor 2 signal B	—	—	—	—	—	—	—	—
32	Generator field duty control	—	W81	—	0.5	MAXXECUPRO-C3-K2	—	—	—
33	Oil level switch signal	—	W102	—	0.5	MAXXECUPRO-C3-A4	—	—	—
34	Oil pressure low reference	—	W19	—	0.5	SP-0V-1	—	—	—
35	Throttle body low reference	—	W20	—	0.5	SP-0V-1	—	—	—
37	Injector 2	—	W54	—	0.5	MAXXECUPRO-C1-K2	—	—	—
38	Injector 3	—	W55	—	0.5	MAXXECUPRO-C1-M1	—	—	—
39	Injector 4	—	W56	—	0.5	MAXXECUPRO-C1-M2	—	—	—
40	Injector 7	—	W59	—	0.5	MAXXECUPRO-C1-L2	—	—	—
41	5V reference (oil pressure)	—	W37	—	0.5	SP-5V1-1	—	—	—
43	5V reference (MAP)	—	W38	—	0.5	SP-5V1-1	—	—	—
44	5V reference (camshaft sensor)	—	W39	—	0.5	SP-5V1-1	—	—	—
5	Throttle actuator motor control 2	—	W62	—	0.5	MAXXECUPRO-C3-L2	—	—	—
50	Engine oil pressure signal	—	W98	—	0.5	MAXXECUPRO-C4-C1	—	—	—
52	Camshaft actuator low reference	—	W21	—	0.5	SP-0V-1	—	—	—
53	MAP low reference	—	W22	—	0.5	SP-0V-1	—	—	—
56	HO2S low reference, bank 1 sensor 1	—	W23	—	0.5	SP-0V-1	—	—	—
57	HO2S signal, bank 1 sensor 1 (pre-cat)	—	W92	—	0.5	MAXXECUPRO-C3-E3	—	—	—
58	Manifold absolute pressure (MAP) signal	—	W85	—	0.5	MAXXECUPRO-C1-J4	—	—	—
59	HO2S signal, bank 2 sensor 1 (pre-cat)	—	W93	—	0.5	MAXXECUPRO-C3-F2	—	—	—
6	Throttle actuator motor control 1	—	W61	—	0.5	MAXXECUPRO-C3-L3	—	—	—
60	HO2S low reference, bank 2 sensor 1	—	W24	—	0.5	SP-0V-1	—	—	—
61	Charge indicator signal	—	W82	—	0.5	MAXXECUPRO-C3-K1	—	—	—
63	Throttle position sensor 2 signal	—	W89	—	0.5	MAXXECUPRO-C3-D2	—	—	—
64	Camshaft position signal (4x)	—	W42	—	0.5	MAXXECUPRO-C1-H4	—	—	—
65	Throttle position sensor 1 signal	—	W87	—	0.5	MAXXECUPRO-C3-C3	—	—	—
66	Camshaft position low reference	—	W25	—	0.5	SP-0V-1	—	—	—
68	Crankshaft position signal (58x)	—	W41	—	0.5	MAXXECUPRO-C1-H3	—	—	—
69	Crankshaft position low reference	—	W26	—	0.5	SP-0V-1	—	—	—
70	Ignition coil 1 control	—	W45	—	0.5	MAXXECUPRO-C1-A2	—	—	—
71	Ignition coil 8 control	—	W52	—	0.5	MAXXECUPRO-C1-D3	—	—	—
72	Ignition coil 7 control	—	W51	—	0.5	MAXXECUPRO-C1-D2	—	—	—
73	Ignition coil 2 control	—	W46	—	0.5	MAXXECUPRO-C1-A3	—	—	—
74	Ignition coil 6 control	—	W50	—	0.5	MAXXECUPRO-C1-C3	—	—	—
75	Ignition coil 5 control	—	W49	—	0.5	MAXXECUPRO-C1-C2	—	—	—
76	Ignition coil 4 control	—	W48	—	0.5	MAXXECUPRO-C1-B3	—	—	—
77	Ignition coil 3 control	—	W47	—	0.5	MAXXECUPRO-C1-B2	—	—	—
78	Coil low reference (odd bank)	—	W6	—	0.85	SP-GND-1	—	—	—
79	Coil low reference (even bank)	—	W7	—	0.85	SP-GND-1	—	—	—
8	EVAP canister purge solenoid	—	W83	—	0.5	MAXXECUPRO-C3-L1	—	—	—
9	Cylinder shutoff solenoid 3 (AFM)	—	W76	—	0.5	MAXXECUPRO-C4-G4	—	—	—

SP-0V

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W13	—	0.5	OEM-X1-11	—	—	—
1	—	—	W14	—	0.5	OEM-X1-23	—	—	—
1	—	—	W15	—	0.5	OEM-X1-30	—	—	—
1	—	—	W16	—	0.5	OEM-X1-38	—	—	—
1	—	—	W17	—	0.5	OEM-X1-49	—	—	—
1	—	—	W18	—	0.5	OEM-X2-22	—	—	—
1	—	—	W19	—	0.5	OEM-X2-34	—	—	—
1	—	—	W20	—	0.5	OEM-X2-35	—	—	—
1	—	—	W21	—	0.5	OEM-X2-52	—	—	—
1	—	—	W22	—	0.5	OEM-X2-53	—	—	—
1	—	—	W23	—	0.5	OEM-X2-56	—	—	—
1	—	—	W24	—	0.5	OEM-X2-60	—	—	—
1	—	—	W25	—	0.5	OEM-X2-66	—	—	—
1	—	—	W26	—	0.5	OEM-X2-69	—	—	—
1	—	—	W27	—	0.5	MAXXECUPRO-C1-H1	—	—	—
1	—	—	W28	—	0.5	MAXXECUPRO-C1-H2	—	—	—
1	—	—	W29	—	0.5	MAXXECUPRO-C3-J2	—	—	—
1	—	—	W30	—	0.5	MAXXECUPRO-C3-J3	—	—	—

SP-14V

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W1	—	0.85	OEM-X1-19	—	—	—
1	—	—	W2	—	0.85	OEM-X1-47	—	—	—
1	—	—	W3	—	0.85	MAXXECUPRO-C1-M4	—	—	—
1	—	—	W4	—	0.85	MAXXECUPRO-C3-M4	—	—	—

SP-5V1

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W31	—	0.5	OEM-X1-33	—	—	—
1	—	—	W32	—	0.5	OEM-X1-34	—	—	—
1	—	—	W33	—	0.5	OEM-X1-36	—	—	—
1	—	—	W34	—	0.5	OEM-X1-56	—	—	—
1	—	—	W35	—	0.5	OEM-X2-2	—	—	—
1	—	—	W36	—	0.5	OEM-X2-3	—	—	—
1	—	—	W37	—	0.5	OEM-X2-41	—	—	—
1	—	—	W38	—	0.5	OEM-X2-43	—	—	—
1	—	—	W39	—	0.5	OEM-X2-44	—	—	—
1	—	—	W40	—	0.5	MAXXECUPRO-C1-G1	—	—	—

SP-GND

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W5	—	0.85	OEM-X1-73	—	—	—
1	—	—	W6	—	0.85	OEM-X2-78	—	—	—
1	—	—	W7	—	0.85	OEM-X2-79	—	—	—
1	—	—	W8	—	0.85	MAXXECUPRO-C1-L4	—	—	—
1	—	—	W9	—	0.85	MAXXECUPRO-C2-H1	—	—	—
1	—	—	W10	—	0.85	MAXXECUPRO-C2-H2	—	—	—
1	—	—	W11	—	0.85	MAXXECUPRO-C2-H3	—	—	—
1	—	—	W12	—	0.85	MAXXECUPRO-C3-L4	—	—	—

Pin map

OEM point	OEM function	OEM family	Target point	Target function	Target family	Evidence
OEM-X1-10	HO2S signal, bank 1 sensor 2 (post-cat)	lambda_nb_in	MAXXECUPRO-C3-D3	ANALOG IN 8 (0-5V)	analog_in	single_source
OEM-X1-11	HO2S low reference, bank 1 sensor 2	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X1-12	A/C refrigerant pressure signal	analog_in	MAXXECUPRO-C3-F3	ANALOG IN 12 (0-5V)	analog_in	corroborated
OEM-X1-17	High speed cooling fan relay	low_side_out	MAXXECUPRO-C1-D4	GPO 3	low_side_out	corroborated
OEM-X1-19	Ignition 1 voltage (key hot)	power_in	MAXXECUPRO-C1-M4 + MAXXECUPRO-C3-M4	+12V ECU power supply + 12V ECU 2	power_in	single_source
OEM-X1-20	Battery positive voltage (batt hot)	power_in	—	—	—	single_source
OEM-X1-23	APP sensor low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X1-24	Fuel tank pressure signal	analog_in	MAXXECUPRO-C4-C2	AIN 13 (0-5V)	analog_in	corroborated
OEM-X1-29	Accelerator pedal position (APP) sensor 1 signal	analog_in	MAXXECUPRO-C1-G2	TPS/AIN	analog_in	single_source
OEM-X1-30	APP sensor low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X1-32	Accelerator pedal position (APP) sensor 2 signal	analog_in	MAXXECUPRO-C3-D1	ANALOG IN 6 (0-5V)	analog_in	single_source
OEM-X1-33	5V reference (fuel tank pressure)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X1-34	5V reference (A/C pressure)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X1-36	5V reference (APP sensor)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X1-37	Intake air temperature (IAT) signal	temp_in	MAXXECUPRO-C1-J2	AIN 2 (temperature)	temp_in	corroborated
OEM-X1-38	Intake air temperature (IAT) low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X1-41	Mass air flow (MAF) signal	analog_in	MAXXECUPRO-C1-J3	AIN 3 (0-5V)	analog_in	corroborated
OEM-X1-47	Ignition 1 voltage (key hot)	power_in	MAXXECUPRO-C1-M4 + MAXXECUPRO-C3-M4	+12V ECU power supply + 12V ECU 2	power_in	single_source
OEM-X1-48	Tachometer output	tacho_out	—	—	—	corroborated
OEM-X1-49	HO2S low reference, bank 2 sensor 2	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X1-50	Fuel pump relay control (primary)	low_side_out	MAXXECUPRO-C1-B4	GPO 1	low_side_out	corroborated
OEM-X1-51	Fuel pump relay control (secondary)	low_side_out	MAXXECUPRO-C1-E4	GPO 4	low_side_out	corroborated
OEM-X1-52	Starter enable relay control	low_side_out	MAXXECUPRO-C1-A1	GPO 5	low_side_out	corroborated
OEM-X1-56	5V reference (APP sensor)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X1-57	VSS output to ABS (128k)	tacho_out	—	—	—	corroborated
OEM-X1-58	Low speed cooling fan relay	low_side_out	MAXXECUPRO-C1-B1	GPO 6	low_side_out	corroborated
OEM-X1-59	Powertrain relay coil control (main relay)	low_side_out	MAXXECUPRO-C1-C4	GPO 2	low_side_out	corroborated
OEM-X1-61	EVAP canister vent solenoid	low_side_out	MAXXECUPRO-C4-H2	GPO 28	low_side_out	corroborated
OEM-X1-63	A/C compressor clutch relay	low_side_out	MAXXECUPRO-C1-C1	GPO 7	low_side_out	corroborated
OEM-X1-64	HO2S heater low control, bank 2 sensor 2	low_side_out	MAXXECUPRO-C1-D1	WBO2 Heater-	low_side_out	single_source
OEM-X1-65	HO2S heater low control, bank 1 sensor 2	low_side_out	MAXXECUPRO-C3-E1	GPO 10/WBO2 2 HTR	low_side_out	single_source
OEM-X1-68	Malfunction indicator lamp (MIL)	low_side_out	MAXXECUPRO-C4-H3	GPO 29	low_side_out	corroborated
OEM-X1-69	HO2S signal, bank 2 sensor 2 (post-cat)	lambda_nb_in	MAXXECUPRO-C3-E2	ANALOG IN 9 (0-5V)	analog_in	single_source
OEM-X1-71	VSS high signal (manual trans)	digital_in	MAXXECUPRO-C1-K3	DIN/VR 1	digital_in	corroborated
OEM-X1-72	VSS low signal (manual trans)	digital_in	MAXXECUPRO-C1-K4	DIN/VR 2	digital_in	corroborated
OEM-X1-73	Power ground	ground	MAXXECUPRO-C1-L4 + MAXXECUPRO-C2-H1 + MAXXECUPRO-C2-H2 + MAXXECUPRO-C2-H3 + MAXXECUPRO-C3-L4	Engine GND + Engine ground 3 + Engine ground 3 + Engine ground 3 + ENGINE GROUND 2	ground	single_source
OEM-X1-9	Brake switch signal	digital_in	MAXXECUPRO-C3-A3	DIN 6 (SWITCH)	digital_in	corroborated
OEM-X2-10	Cylinder shutoff solenoid 1 (AFM)	low_side_out	MAXXECUPRO-C4-G2	GPO 24	low_side_out	corroborated
OEM-X2-11	Cylinder shutoff solenoid 4 (AFM)	low_side_out	MAXXECUPRO-C4-H1	GPO 27	low_side_out	corroborated
OEM-X2-12	HO2S heater low control, bank 1 sensor 1	low_side_out	MAXXECUPRO-C1-A4	GPO 8/TACHO	low_side_out	single_source
OEM-X2-13	HO2S heater low control, bank 2 sensor 1	low_side_out	MAXXECUPRO-C4-G1	GPO 23	low_side_out	single_source
OEM-X2-14	Cylinder shutoff solenoid 2 (AFM)	low_side_out	MAXXECUPRO-C4-G3	GPO 25	low_side_out	corroborated
OEM-X2-16	Camshaft actuator solenoid (VVT)	low_side_out	MAXXECUPRO-C4-H4	GPO 30	low_side_out	corroborated
OEM-X2-17	Injector 8	injector_out	MAXXECUPRO-C1-L1	INJ 8	injector_out	single_source
OEM-X2-18	Injector 5	injector_out	MAXXECUPRO-C1-M3	INJ 5	injector_out	single_source
OEM-X2-19	Injector 6	injector_out	MAXXECUPRO-C1-L3	INJ 6	injector_out	single_source
OEM-X2-2	5V reference (crankshaft sensor)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X2-20	Injector 1	injector_out	MAXXECUPRO-C1-K1	INJ 1	injector_out	single_source
OEM-X2-21	Engine coolant temperature (ECT) signal	temp_in	MAXXECUPRO-C1-J1	AIN 1 (temperature)	temp_in	corroborated
OEM-X2-22	ECT low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-26	Knock sensor 1 signal A	knock_in	MAXXECUPRO-C4-F2	Knock 1	knock_in	corroborated
OEM-X2-27	Knock sensor 1 signal B	knock_in	MAXXECUPRO-C4-F3	Knock 2	knock_in	single_source
OEM-X2-29	Knock sensor 2 signal A	knock_in	—	—	—	corroborated
OEM-X2-3	5V reference (throttle body)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X2-30	Knock sensor 2 signal B	knock_in	—	—	—	single_source
OEM-X2-32	Generator field duty control	low_side_out	MAXXECUPRO-C3-K2	INJECTOR OUT 9	injector_out	corroborated
OEM-X2-33	Oil level switch signal	digital_in	MAXXECUPRO-C3-A4	DIN 7 (SWITCH)	digital_in	corroborated
OEM-X2-34	Oil pressure low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-35	Throttle body low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-37	Injector 2	injector_out	MAXXECUPRO-C1-K2	INJ 2	injector_out	single_source
OEM-X2-38	Injector 3	injector_out	MAXXECUPRO-C1-M1	INJ 3	injector_out	single_source
OEM-X2-39	Injector 4	injector_out	MAXXECUPRO-C1-M2	INJ 4	injector_out	single_source
OEM-X2-40	Injector 7	injector_out	MAXXECUPRO-C1-L2	INJ 7	injector_out	single_source
OEM-X2-41	5V reference (oil pressure)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X2-43	5V reference (MAP)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X2-44	5V reference (camshaft sensor)	vref	MAXXECUPRO-C1-G1	+5V sensor supply	vref	single_source
OEM-X2-5	Throttle actuator motor control 2	hbridge_out	MAXXECUPRO-C3-L2	GPO 12/MOTOR 1 +	hbridge_out	corroborated
OEM-X2-50	Engine oil pressure signal	analog_in	MAXXECUPRO-C4-C1	AIN 14 (0-5V)	analog_in	corroborated
OEM-X2-52	Camshaft actuator low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-53	MAP low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-56	HO2S low reference, bank 1 sensor 1	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-57	HO2S signal, bank 1 sensor 1 (pre-cat)	lambda_nb_in	MAXXECUPRO-C3-E3	ANALOG IN 10 (0-5V)	analog_in	single_source
OEM-X2-58	Manifold absolute pressure (MAP) signal	analog_in	MAXXECUPRO-C1-J4	AIN 4 (0-5V)	analog_in	corroborated
OEM-X2-59	HO2S signal, bank 2 sensor 1 (pre-cat)	lambda_nb_in	MAXXECUPRO-C3-F2	ANALOG IN 11 (0-5V)	analog_in	single_source
OEM-X2-6	Throttle actuator motor control 1	hbridge_out	MAXXECUPRO-C3-L3	GPO 11/MOTOR 1 -	hbridge_out	corroborated
OEM-X2-60	HO2S low reference, bank 2 sensor 1	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-61	Charge indicator signal	low_side_out	MAXXECUPRO-C3-K1	INJECTOR OUT 10	injector_out	corroborated
OEM-X2-63	Throttle position sensor 2 signal	analog_in	MAXXECUPRO-C3-D2	ANALOG IN 7 (0-5V)	analog_in	single_source
OEM-X2-64	Camshaft position signal (4x)	trigger_in	MAXXECUPRO-C1-H4	HOME	trigger_in	single_source
OEM-X2-65	Throttle position sensor 1 signal	analog_in	MAXXECUPRO-C3-C3	ANALOG IN 5 (0-5V)	analog_in	single_source
OEM-X2-66	Camshaft position low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-68	Crankshaft position signal (58x)	trigger_in	MAXXECUPRO-C1-H3	TRIGGER	trigger_in	single_source
OEM-X2-69	Crankshaft position low reference	sensor_ground	MAXXECUPRO-C1-H1 + MAXXECUPRO-C1-H2 + MAXXECUPRO-C3-J2 + MAXXECUPRO-C3-J3	Sensor GND + Trigger GND + SENSOR GND + SENSOR GND	sensor_ground	single_source
OEM-X2-70	Ignition coil 1 control	ignition_out	MAXXECUPRO-C1-A2	IGN 1	ignition_out	single_source
OEM-X2-71	Ignition coil 8 control	ignition_out	MAXXECUPRO-C1-D3	IGN 8	ignition_out	single_source
OEM-X2-72	Ignition coil 7 control	ignition_out	MAXXECUPRO-C1-D2	IGN 7	ignition_out	single_source
OEM-X2-73	Ignition coil 2 control	ignition_out	MAXXECUPRO-C1-A3	IGN 2	ignition_out	single_source
OEM-X2-74	Ignition coil 6 control	ignition_out	MAXXECUPRO-C1-C3	IGN 6	ignition_out	single_source
OEM-X2-75	Ignition coil 5 control	ignition_out	MAXXECUPRO-C1-C2	IGN 5	ignition_out	single_source
OEM-X2-76	Ignition coil 4 control	ignition_out	MAXXECUPRO-C1-B3	IGN 4	ignition_out	single_source
OEM-X2-77	Ignition coil 3 control	ignition_out	MAXXECUPRO-C1-B2	IGN 3	ignition_out	single_source
OEM-X2-78	Coil low reference (odd bank)	ground	MAXXECUPRO-C1-L4 + MAXXECUPRO-C2-H1 + MAXXECUPRO-C2-H2 + MAXXECUPRO-C2-H3 + MAXXECUPRO-C3-L4	Engine GND + Engine ground 3 + Engine ground 3 + Engine ground 3 + ENGINE GROUND 2	ground	single_source
OEM-X2-79	Coil low reference (even bank)	ground	MAXXECUPRO-C1-L4 + MAXXECUPRO-C2-H1 + MAXXECUPRO-C2-H2 + MAXXECUPRO-C2-H3 + MAXXECUPRO-C3-L4	Engine GND + Engine ground 3 + Engine ground 3 + Engine ground 3 + ENGINE GROUND 2	ground	single_source
OEM-X2-8	EVAP canister purge solenoid	low_side_out	MAXXECUPRO-C3-L1	INJECTOR OUT 11	injector_out	corroborated
OEM-X2-9	Cylinder shutoff solenoid 3 (AFM)	low_side_out	MAXXECUPRO-C4-G4	GPO 26	low_side_out	corroborated

Cut list

Wire	From	To	Gauge (mm²)	Length	Signal	Ident
W1	OEM-X1-19	SP-14V-1	0.85	no route	Ignition 1 voltage (key hot)	—
W2	OEM-X1-47	SP-14V-1	0.85	no route	Ignition 1 voltage (key hot)	—
W3	SP-14V-1	MAXXECUPRO-C1-M4	0.85	no route	+12V ECU power supply	—
W4	SP-14V-1	MAXXECUPRO-C3-M4	0.85	no route	12V ECU 2	—
W5	OEM-X1-73	SP-GND-1	0.85	no route	Power ground	—
W6	OEM-X2-78	SP-GND-1	0.85	no route	Coil low reference (odd bank)	—
W7	OEM-X2-79	SP-GND-1	0.85	no route	Coil low reference (even bank)	—
W8	SP-GND-1	MAXXECUPRO-C1-L4	0.85	no route	Engine GND	—
W9	SP-GND-1	MAXXECUPRO-C2-H1	0.85	no route	Engine ground 3	—
W10	SP-GND-1	MAXXECUPRO-C2-H2	0.85	no route	Engine ground 3	—
W11	SP-GND-1	MAXXECUPRO-C2-H3	0.85	no route	Engine ground 3	—
W12	SP-GND-1	MAXXECUPRO-C3-L4	0.85	no route	ENGINE GROUND 2	—
W13	OEM-X1-11	SP-0V-1	0.5	no route	HO2S low reference, bank 1 sensor 2	—
W14	OEM-X1-23	SP-0V-1	0.5	no route	APP sensor low reference	—
W15	OEM-X1-30	SP-0V-1	0.5	no route	APP sensor low reference	—
W16	OEM-X1-38	SP-0V-1	0.5	no route	Intake air temperature (IAT) low reference	—
W17	OEM-X1-49	SP-0V-1	0.5	no route	HO2S low reference, bank 2 sensor 2	—
W18	OEM-X2-22	SP-0V-1	0.5	no route	ECT low reference	—
W19	OEM-X2-34	SP-0V-1	0.5	no route	Oil pressure low reference	—
W20	OEM-X2-35	SP-0V-1	0.5	no route	Throttle body low reference	—
W21	OEM-X2-52	SP-0V-1	0.5	no route	Camshaft actuator low reference	—
W22	OEM-X2-53	SP-0V-1	0.5	no route	MAP low reference	—
W23	OEM-X2-56	SP-0V-1	0.5	no route	HO2S low reference, bank 1 sensor 1	—
W24	OEM-X2-60	SP-0V-1	0.5	no route	HO2S low reference, bank 2 sensor 1	—
W25	OEM-X2-66	SP-0V-1	0.5	no route	Camshaft position low reference	—
W26	OEM-X2-69	SP-0V-1	0.5	no route	Crankshaft position low reference	—
W27	SP-0V-1	MAXXECUPRO-C1-H1	0.5	no route	Sensor GND	—
W28	SP-0V-1	MAXXECUPRO-C1-H2	0.5	no route	Trigger GND	—
W29	SP-0V-1	MAXXECUPRO-C3-J2	0.5	no route	SENSOR GND	—
W30	SP-0V-1	MAXXECUPRO-C3-J3	0.5	no route	SENSOR GND	—
W31	OEM-X1-33	SP-5V1-1	0.5	no route	5V reference (fuel tank pressure)	—
W32	OEM-X1-34	SP-5V1-1	0.5	no route	5V reference (A/C pressure)	—
W33	OEM-X1-36	SP-5V1-1	0.5	no route	5V reference (APP sensor)	—
W34	OEM-X1-56	SP-5V1-1	0.5	no route	5V reference (APP sensor)	—
W35	OEM-X2-2	SP-5V1-1	0.5	no route	5V reference (crankshaft sensor)	—
W36	OEM-X2-3	SP-5V1-1	0.5	no route	5V reference (throttle body)	—
W37	OEM-X2-41	SP-5V1-1	0.5	no route	5V reference (oil pressure)	—
W38	OEM-X2-43	SP-5V1-1	0.5	no route	5V reference (MAP)	—
W39	OEM-X2-44	SP-5V1-1	0.5	no route	5V reference (camshaft sensor)	—
W40	SP-5V1-1	MAXXECUPRO-C1-G1	0.5	no route	+5V sensor supply	—
W41	OEM-X2-68	MAXXECUPRO-C1-H3	0.5	no route	Crankshaft position signal (58x)	—
W42	OEM-X2-64	MAXXECUPRO-C1-H4	0.5	no route	Camshaft position signal (4x)	—
W43	OEM-X2-26	MAXXECUPRO-C4-F2	0.5	no route	Knock sensor 1 signal A	—
W44	OEM-X2-27	MAXXECUPRO-C4-F3	0.5	no route	Knock sensor 1 signal B	—
W45	OEM-X2-70	MAXXECUPRO-C1-A2	0.5	no route	Ignition coil 1 control	—
W46	OEM-X2-73	MAXXECUPRO-C1-A3	0.5	no route	Ignition coil 2 control	—
W47	OEM-X2-77	MAXXECUPRO-C1-B2	0.5	no route	Ignition coil 3 control	—
W48	OEM-X2-76	MAXXECUPRO-C1-B3	0.5	no route	Ignition coil 4 control	—
W49	OEM-X2-75	MAXXECUPRO-C1-C2	0.5	no route	Ignition coil 5 control	—
W50	OEM-X2-74	MAXXECUPRO-C1-C3	0.5	no route	Ignition coil 6 control	—
W51	OEM-X2-72	MAXXECUPRO-C1-D2	0.5	no route	Ignition coil 7 control	—
W52	OEM-X2-71	MAXXECUPRO-C1-D3	0.5	no route	Ignition coil 8 control	—
W53	OEM-X2-20	MAXXECUPRO-C1-K1	0.5	no route	Injector 1	—
W54	OEM-X2-37	MAXXECUPRO-C1-K2	0.5	no route	Injector 2	—
W55	OEM-X2-38	MAXXECUPRO-C1-M1	0.5	no route	Injector 3	—
W56	OEM-X2-39	MAXXECUPRO-C1-M2	0.5	no route	Injector 4	—
W57	OEM-X2-18	MAXXECUPRO-C1-M3	0.5	no route	Injector 5	—
W58	OEM-X2-19	MAXXECUPRO-C1-L3	0.5	no route	Injector 6	—
W59	OEM-X2-40	MAXXECUPRO-C1-L2	0.5	no route	Injector 7	—
W60	OEM-X2-17	MAXXECUPRO-C1-L1	0.5	no route	Injector 8	—
W61	OEM-X2-6	MAXXECUPRO-C3-L3	0.5	no route	Throttle actuator motor control 1	—
W62	OEM-X2-5	MAXXECUPRO-C3-L2	0.5	no route	Throttle actuator motor control 2	—
W63	OEM-X1-50	MAXXECUPRO-C1-B4	0.5	no route	Fuel pump relay control (primary)	—
W64	OEM-X1-59	MAXXECUPRO-C1-C4	0.5	no route	Powertrain relay coil control (main relay)	—
W65	OEM-X1-17	MAXXECUPRO-C1-D4	0.5	no route	High speed cooling fan relay	—
W66	OEM-X1-51	MAXXECUPRO-C1-E4	0.5	no route	Fuel pump relay control (secondary)	—
W67	OEM-X1-52	MAXXECUPRO-C1-A1	0.5	no route	Starter enable relay control	—
W68	OEM-X1-58	MAXXECUPRO-C1-B1	0.5	no route	Low speed cooling fan relay	—
W69	OEM-X1-63	MAXXECUPRO-C1-C1	0.5	no route	A/C compressor clutch relay	—
W70	OEM-X1-64	MAXXECUPRO-C1-D1	0.5	no route	HO2S heater low control, bank 2 sensor 2	—
W71	OEM-X1-65	MAXXECUPRO-C3-E1	0.5	no route	HO2S heater low control, bank 1 sensor 2	—
W72	OEM-X2-12	MAXXECUPRO-C1-A4	0.5	no route	HO2S heater low control, bank 1 sensor 1	—
W73	OEM-X2-13	MAXXECUPRO-C4-G1	0.5	no route	HO2S heater low control, bank 2 sensor 1	—
W74	OEM-X2-10	MAXXECUPRO-C4-G2	0.5	no route	Cylinder shutoff solenoid 1 (AFM)	—
W75	OEM-X2-14	MAXXECUPRO-C4-G3	0.5	no route	Cylinder shutoff solenoid 2 (AFM)	—
W76	OEM-X2-9	MAXXECUPRO-C4-G4	0.5	no route	Cylinder shutoff solenoid 3 (AFM)	—
W77	OEM-X2-11	MAXXECUPRO-C4-H1	0.5	no route	Cylinder shutoff solenoid 4 (AFM)	—
W78	OEM-X1-61	MAXXECUPRO-C4-H2	0.5	no route	EVAP canister vent solenoid	—
W79	OEM-X1-68	MAXXECUPRO-C4-H3	0.5	no route	Malfunction indicator lamp (MIL)	—
W80	OEM-X2-16	MAXXECUPRO-C4-H4	0.5	no route	Camshaft actuator solenoid (VVT)	—
W81	OEM-X2-32	MAXXECUPRO-C3-K2	0.5	no route	Generator field duty control	—
W82	OEM-X2-61	MAXXECUPRO-C3-K1	0.5	no route	Charge indicator signal	—
W83	OEM-X2-8	MAXXECUPRO-C3-L1	0.5	no route	EVAP canister purge solenoid	—
W84	OEM-X1-41	MAXXECUPRO-C1-J3	0.5	no route	Mass air flow (MAF) signal	—
W85	OEM-X2-58	MAXXECUPRO-C1-J4	0.5	no route	Manifold absolute pressure (MAP) signal	—
W86	OEM-X1-29	MAXXECUPRO-C1-G2	0.5	no route	Accelerator pedal position (APP) sensor 1 signal	—
W87	OEM-X2-65	MAXXECUPRO-C3-C3	0.5	no route	Throttle position sensor 1 signal	—
W88	OEM-X1-32	MAXXECUPRO-C3-D1	0.5	no route	Accelerator pedal position (APP) sensor 2 signal	—
W89	OEM-X2-63	MAXXECUPRO-C3-D2	0.5	no route	Throttle position sensor 2 signal	—
W90	OEM-X1-10	MAXXECUPRO-C3-D3	0.5	no route	HO2S signal, bank 1 sensor 2 (post-cat)	—
W91	OEM-X1-69	MAXXECUPRO-C3-E2	0.5	no route	HO2S signal, bank 2 sensor 2 (post-cat)	—
W92	OEM-X2-57	MAXXECUPRO-C3-E3	0.5	no route	HO2S signal, bank 1 sensor 1 (pre-cat)	—
W93	OEM-X2-59	MAXXECUPRO-C3-F2	0.5	no route	HO2S signal, bank 2 sensor 1 (pre-cat)	—
W94	OEM-X2-21	MAXXECUPRO-C1-J1	0.5	no route	Engine coolant temperature (ECT) signal	—
W95	OEM-X1-37	MAXXECUPRO-C1-J2	0.5	no route	Intake air temperature (IAT) signal	—
W96	OEM-X1-12	MAXXECUPRO-C3-F3	0.5	no route	A/C refrigerant pressure signal	—
W97	OEM-X1-24	MAXXECUPRO-C4-C2	0.5	no route	Fuel tank pressure signal	—
W98	OEM-X2-50	MAXXECUPRO-C4-C1	0.5	no route	Engine oil pressure signal	—
W99	OEM-X1-71	MAXXECUPRO-C1-K3	0.5	no route	VSS high signal (manual trans)	—
W100	OEM-X1-72	MAXXECUPRO-C1-K4	0.5	no route	VSS low signal (manual trans)	—
W101	OEM-X1-9	MAXXECUPRO-C3-A3	0.5	no route	Brake switch signal	—
W102	OEM-X2-33	MAXXECUPRO-C3-A4	0.5	no route	Oil level switch signal	—

Bill of materials

Category	Part number	Manufacturer	Description	Qty	Unit

ECU setup sheet

Role	Engine ref	Engine signal	Sensor	ECU point	ECU function	ECU class	Setup flag
No configured channels.

Findings

Open (6)

Severity	Code	Subject	Message
warn	DBW_MOTOR_CURRENT	MAXXECUPRO-C3-L2	Cannot confirm MaxxECU PRO can drive the throttle motor: MAXXECUPRO-C3-L2 "GPO 12/MOTOR 1 +" is rated 2.0 A, but the motor current at OEM-X2-5 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).
warn	DBW_MOTOR_CURRENT	MAXXECUPRO-C3-L3	Cannot confirm MaxxECU PRO can drive the throttle motor: MAXXECUPRO-C3-L3 "GPO 11/MOTOR 1 -" is rated 2.0 A, but the motor current at OEM-X2-6 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).
info	NET_FAMILY	OEM-X2-32 ↔ MAXXECUPRO-C3-K2	OEM-X2-32 "Generator field duty control" [low_side_out] is wired to MAXXECUPRO-C3-K2 "INJECTOR OUT 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-X2-61 ↔ MAXXECUPRO-C3-K1	OEM-X2-61 "Charge indicator signal" [low_side_out] is wired to MAXXECUPRO-C3-K1 "INJECTOR OUT 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-X2-8 ↔ MAXXECUPRO-C3-L1	OEM-X2-8 "EVAP canister purge solenoid" [low_side_out] is wired to MAXXECUPRO-C3-L1 "INJECTOR OUT 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	UNMAPPED	OEM	4 optional OEM pins are not mapped: OEM-X1-48 Tachometer output; OEM-X1-57 VSS output to ABS (128k); OEM-X2-29 Knock sensor 2 signal A; OEM-X2-30 Knock sensor 2 signal B

Accepted (1)

Code	Subject	Reason	By
REQUIRED_UNMAPPED	OEM-X1-20	Battery-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: - Trigger pattern for GM LS not found in the ECU's docs (no GM LS entry in the MaxxECU trigger list) Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-X1 20: Battery positive voltage (batt hot): MaxxECU MaxxECU PRO has no battery-constant input; not needed - OEM-X2 29: Knock sensor 2 signal A: no free knock input on MaxxECU MaxxECU PRO - OEM-X2 30: Knock sensor 2 signal B: no free knock input on MaxxECU MaxxECU PRO - OEM-X1 48: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MaxxECU MaxxECU PRO - OEM-X1 57: VSS output to ABS (128k): no free frequency_out/tacho/low_side/ls_hs on MaxxECU MaxxECU PRO - MAXXECUPRO-C3 K3: KEY IN 12V: not fed (the stock ECU has no ignition-sense pin); feed it from a switched-ignition source

Sources

Reliability	Kind	Title	URL	Archive	Captured	SHA-256
4	vendor_doc	MaxxECU GEN1 pinout (MINI / STREET / SPORT / V1 / RACE / PRO)	http://www.maxxecu.com/webhelp/wirings-maxxecu_pinout.html	archive	2026-10-05	2e37b6814690
4	vendor_doc	MaxxECU webhelp: Wiring — plug-in ECU Chevrolet Corvette C6 (GM E38 ECM)	http://www.maxxecu.com/webhelp/wirings-pluginecu-chevrolet_corvette_c6_e38_ecm.html	—	—	—
2	community_copy	lt1swap.com: E38 ECM Connector Pinouts	https://lt1swap.com/E38 ECM Connector Pinouts.htm	—	—	—