Mustang GT 2011–14 (Coyote 5.0) → Motorsport Electronics ME221 (auto)

Mustang GT 2011–14 (Coyote 5.0) — Motorsport Electronics — ME221

⚠ NOT CHECKED. Don't build from this.

Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-11

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.

Status	draft · not yet verified: nobody has reported building and running this harness
Open errors	16: read the Findings page before cutting any wire
Size of the job	54 wires · 5 connectors · 1 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-C175E-18	SP-14V-1	0.85	☐	☐	☐	☐	☐	☐	☐
W2	SP-14V-1	ME221-C1-15	0.85	☐	☐	☐	☐	☐	☐	☐
W3	SP-14V-1	ME221-C1-64	0.85	☐	☐	☐	☐	☐	☐	☐
W4	OEM-C175E-23	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W5	OEM-C175E-40	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W6	OEM-C175E-49	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W7	OEM-C175E-52	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W8	OEM-C175E-54	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W9	OEM-C175E-67	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W10	OEM-C175E-69	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W11	SP-0V-1	ME221-C1-52	0.5	☐	☐	☐	☐	☐	☐	☐
W12	SP-0V-1	ME221-C1-84	0.5	☐	☐	☐	☐	☐	☐	☐
W13	OEM-C175E-17	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W14	OEM-C175E-34	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W15	OEM-C175E-8	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W16	SP-5V1-1	ME221-C1-45	0.5	☐	☐	☐	☐	☐	☐	☐
W17	OEM-C175E-70	ME221-C1-80	0.5	☐	☐	☐	☐	☐	☐	☐
W18	OEM-C175E-55	ME221-C1-22	0.5	☐	☐	☐	☐	☐	☐	☐
W19	OEM-C175E-56	ME221-C1-23	0.5	☐	☐	☐	☐	☐	☐	☐
W20	OEM-C175E-53	ME221-C1-53	0.5	☐	☐	☐	☐	☐	☐	☐
W21	OEM-C175E-87	ME221-C1-32	0.5	☐	☐	☐	☐	☐	☐	☐
W22	OEM-C175E-88	ME221-C1-31	0.5	☐	☐	☐	☐	☐	☐	☐
W23	OEM-C175E-89	ME221-C1-2	0.5	☐	☐	☐	☐	☐	☐	☐
W24	OEM-C175E-90	ME221-C1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W25	OEM-C175E-1	ME221-C1-63	0.5	☐	☐	☐	☐	☐	☐	☐
W26	OEM-C175E-62	ME221-C1-4	0.5	☐	☐	☐	☐	☐	☐	☐
W27	OEM-C175E-46	ME221-C1-33	0.5	☐	☐	☐	☐	☐	☐	☐
W28	OEM-C175E-3	ME221-C1-3	0.5	☐	☐	☐	☐	☐	☐	☐
W29	OEM-C175E-2	ME221-C1-63	0.5	☐	☐	☐	☐	☐	☐	☐
W30	OEM-C175E-31	ME221-C1-4	0.5	☐	☐	☐	☐	☐	☐	☐
W31	OEM-C175E-61	ME221-C1-33	0.5	☐	☐	☐	☐	☐	☐	☐
W32	OEM-C175E-16	ME221-C1-3	0.5	☐	☐	☐	☐	☐	☐	☐
W33	OEM-C175E-81	ME221-C1-68	0.5	☐	☐	☐	☐	☐	☐	☐
W34	OEM-C175E-82	ME221-C1-67	0.5	☐	☐	☐	☐	☐	☐	☐
W35	OEM-C175E-10	ME221-C1-26	0.5	☐	☐	☐	☐	☐	☐	☐
W36	OEM-C175E-9	ME221-C1-56	0.5	☐	☐	☐	☐	☐	☐	☐
W37	OEM-C175E-27	ME221-C1-86	0.5	☐	☐	☐	☐	☐	☐	☐
W38	OEM-C175E-47	ME221-C1-57	0.5	☐	☐	☐	☐	☐	☐	☐
W39	OEM-C175E-78	ME221-C1-16	0.5	☐	☐	☐	☐	☐	☐	☐
W40	OEM-C175E-79	ME221-C1-73	0.5	☐	☐	☐	☐	☐	☐	☐
W41	OEM-C175E-83	ME221-C1-12	0.5	☐	☐	☐	☐	☐	☐	☐
W42	OEM-C175E-84	ME221-C1-74	0.5	☐	☐	☐	☐	☐	☐	☐
W43	OEM-C175E-5	ME221-C1-44	0.5	☐	☐	☐	☐	☐	☐	☐
W44	OEM-C175E-4	ME221-C1-69	0.5	☐	☐	☐	☐	☐	☐	☐
W45	OEM-C175E-7	ME221-C1-39	0.5	☐	☐	☐	☐	☐	☐	☐
W46	OEM-C175E-6	ME221-C1-37	0.5	☐	☐	☐	☐	☐	☐	☐
W47	OEM-C175E-71	ME221-C1-42	0.5	☐	☐	☐	☐	☐	☐	☐
W48	OEM-C175E-35	ME221-C1-50	0.5	☐	☐	☐	☐	☐	☐	☐
W49	OEM-C175E-50	ME221-C1-19	0.5	☐	☐	☐	☐	☐	☐	☐
W50	OEM-C175E-20	ME221-C1-20	0.5	☐	☐	☐	☐	☐	☐	☐
W51	OEM-C175E-44	ME221-C1-17	0.5	☐	☐	☐	☐	☐	☐	☐
W52	OEM-C175E-45	ME221-C1-18	0.5	☐	☐	☐	☐	☐	☐	☐
W53	OEM-C175E-30	ME221-C1-6	0.5	☐	☐	☐	☐	☐	☐	☐
W54	OEM-C175E-48	ME221-C1-7	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	ME221-C1-15	ME221-C1-52	open (OL)	+12 V supply must not touch sensor ground
2	ME221-C1-45	ME221-C1-52	open (OL)	5 V sensor reference must not touch sensor ground
3	ME221-C1-45	ME221-C1-15	open (OL)	5 V sensor reference must not touch +12 V supply

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

Revisions

Rev	Label	By	Date
No revisions yet.

Schematic

Connectors

ME221-C1

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	COIL 4	—	W24	—	0.5	OEM-C175E-90	—	—	—
10	GROUND CHASSIS	—	—	—	—	—	—	—	—
12	LOW SIDE 2	—	W41	—	0.5	OEM-C175E-83	—	—	—
14	LSU +12V	—	—	—	—	—	—	—	—
15	IGN +12V	—	W2	—	0.85	SP-14V-1	—	—	—
16	LSU HEATER -VE	—	W39	—	0.5	OEM-C175E-78	—	—	—
17	ANA VOLT 3	—	W51	—	0.5	OEM-C175E-44	—	—	—
18	ANA VOLT 4	—	W52	—	0.5	OEM-C175E-45	—	—	—
19	LSU UN	—	W49	—	0.5	OEM-C175E-50	—	—	—
2	COIL 3	—	W23	—	0.5	OEM-C175E-89	—	—	—
20	LSU VM	—	W50	—	0.5	OEM-C175E-20	—	—	—
21	CAN 1 HIGH	—	—	—	—	—	—	—	—
22	CAM A VR+	—	W18	—	0.5	OEM-C175E-55	—	—	—
23	CAM A VR-	—	W19	—	0.5	OEM-C175E-56	—	—	—
24	SERIAL 1 GROUND	—	—	—	—	—	—	—	—
25	SERIAL 1 TX	—	—	—	—	—	—	—	—
26	ANA VOLT 1	—	W35	—	0.5	OEM-C175E-10	—	—	—
3	INJECTOR 4	—	W28	—	0.5	OEM-C175E-3	—	—	—
3	INJECTOR 4	—	W32	—	0.5	OEM-C175E-16	—	—	—
31	COIL 2	—	W22	—	0.5	OEM-C175E-88	—	—	—
32	COIL 1	—	W21	—	0.5	OEM-C175E-87	—	—	—
33	INJECTOR 3	—	W27	—	0.5	OEM-C175E-46	—	—	—
33	INJECTOR 3	—	W31	—	0.5	OEM-C175E-61	—	—	—
35	USB D+	—	—	—	—	—	—	—	—
36	USB D-	—	—	—	—	—	—	—	—
37	LOW SIDE RELAY 11	—	W46	—	0.5	OEM-C175E-6	—	—	—
38	USB VBUS	—	—	—	—	—	—	—	—
39	LOW SIDE 6	—	W45	—	0.5	OEM-C175E-7	—	—	—
4	INJECTOR 2	—	W26	—	0.5	OEM-C175E-62	—	—	—
4	INJECTOR 2	—	W30	—	0.5	OEM-C175E-31	—	—	—
41	USB GROUND	—	—	—	—	—	—	—	—
42	LOW SIDE RELAY 12	—	W47	—	0.5	OEM-C175E-71	—	—	—
43	LOW SIDE RELAY 14	—	—	—	—	—	—	—	—
44	LOW SIDE 4	—	W43	—	0.5	OEM-C175E-5	—	—	—
45	5V REF	—	W16	—	0.5	SP-5V1-1	—	—	—
46	5V REF	—	—	—	—	—	—	—	—
49	LSU IA	—	—	—	—	—	—	—	—
50	LSU IP	—	W48	—	0.5	OEM-C175E-35	—	—	—
51	CAN 1 LOW	—	—	—	—	—	—	—	—
52	SENSORS GROUND	—	W11	—	0.5	SP-0V-1	—	—	—
53	KNOCK 1 SIGNAL	—	W20	—	0.5	OEM-C175E-53	—	—	—
55	SERIAL 1 RX	—	—	—	—	—	—	—	—
56	ANA VOLT 2	—	W36	—	0.5	OEM-C175E-9	—	—	—
57	ANA TEMP 2	—	W38	—	0.5	OEM-C175E-47	—	—	—
6	DIG_IN 1	—	W53	—	0.5	OEM-C175E-30	—	—	—
61	GROUND	—	—	—	—	—	—	—	—
63	INJECTOR 1	—	W25	—	0.5	OEM-C175E-1	—	—	—
63	INJECTOR 1	—	W29	—	0.5	OEM-C175E-2	—	—	—
64	VBAT	—	W3	—	0.85	SP-14V-1	—	—	—
67	Stepper 1 / A1	—	W34	—	0.5	OEM-C175E-82	—	—	—
68	Stepper 2 / A2	—	W33	—	0.5	OEM-C175E-81	—	—	—
69	LOW SIDE 5	—	W44	—	0.5	OEM-C175E-4	—	—	—
7	DIG_IN 2	—	W54	—	0.5	OEM-C175E-48	—	—	—
70	Stepper 3 / B1	—	—	—	—	—	—	—	—
71	Stepper 4 / B2	—	—	—	—	—	—	—	—
72	LOW SIDE RELAY 13	—	—	—	—	—	—	—	—
73	LOW SIDE 1	—	W40	—	0.5	OEM-C175E-79	—	—	—
74	LOW SIDE 3	—	W42	—	0.5	OEM-C175E-84	—	—	—
76	5V REF	—	—	—	—	—	—	—	—
79	TACHOMETER	—	—	—	—	—	—	—	—
80	CRANK VR+	—	W17	—	0.5	OEM-C175E-70	—	—	—
81	CRANK VR-	—	—	—	—	—	—	—	—
84	Sensor Ground	—	W12	—	0.5	SP-0V-1	—	—	—
86	ANA TEMP 1	—	W37	—	0.5	OEM-C175E-27	—	—	—
89	GROUND	—	—	—	—	—	—	—	—
90	GROUND	—	—	—	—	—	—	—	—

OEM-C175E

Mating face

Wire side

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	Fuel injector driver 1 (INJ 1)	—	W25	—	0.5	ME221-C1-63	—	—	—
2	Fuel injector driver 5 (INJ 5)	—	W29	—	0.5	ME221-C1-63	—	—	—
3	Fuel injector driver 4 (INJ 4)	—	W28	—	0.5	ME221-C1-3	—	—	—
4	Variable camshaft timing valve 2 (VCT2)	—	W44	—	0.5	ME221-C1-69	—	—	—
5	Variable camshaft timing valve 1 (VCT1)	—	W43	—	0.5	ME221-C1-44	—	—	—
6	Variable camshaft timing valve 4 (VCT4)	—	W46	—	0.5	ME221-C1-37	—	—	—
7	Variable camshaft timing valve 3 (VCT3)	—	W45	—	0.5	ME221-C1-39	—	—	—
8	Electronic throttle control reference (ETCREF)	—	W15	—	0.5	SP-5V1-1	—	—	—
9	Throttle position positive slope (TP2-PS)	—	W36	—	0.5	ME221-C1-56	—	—	—
10	Throttle position negative slope (TP1-NS)	—	W35	—	0.5	ME221-C1-26	—	—	—
11	—	—	—	—	—	—	—	—	—
12	—	—	—	—	—	—	—	—	—
13	—	—	—	—	—	—	—	—	—
14	—	—	—	—	—	—	—	—	—
15	—	—	—	—	—	—	—	—	—
16	Fuel injector driver 8 (INJ 8)	—	W32	—	0.5	ME221-C1-3	—	—	—
17	Buffered power supply sensors (VBPWR)	—	W13	—	0.5	SP-5V1-1	—	—	—
18	PCM power feed (VPWR, fused)	—	W1	—	0.85	SP-14V-1	—	—	—
19	—	—	—	—	—	—	—	—	—
20	Universal HEGO 1st reference (UREF-11)	—	W50	—	0.5	ME221-C1-20	—	—	—
21	Universal HEGO 2nd reference (UREF-21)	—	—	—	—	—	—	—	—
22	—	—	—	—	—	—	—	—	—
23	Electronic throttle control return (ETCRTN)	—	W4	—	0.5	SP-0V-1	—	—	—
24	—	—	—	—	—	—	—	—	—
25	—	—	—	—	—	—	—	—	—
26	—	—	—	—	—	—	—	—	—
27	Intake air temperature (IAT)	—	W37	—	0.5	ME221-C1-86	—	—	—
28	—	—	—	—	—	—	—	—	—
29	—	—	—	—	—	—	—	—	—
30	Engine oil level switch (EOL)	—	W53	—	0.5	ME221-C1-6	—	—	—
31	Fuel injector driver 6 (INJ 6)	—	W30	—	0.5	ME221-C1-4	—	—	—
32	—	—	—	—	—	—	—	—	—
33	—	—	—	—	—	—	—	—	—
34	Voltage reference engine (VREF)	—	W14	—	0.5	SP-5V1-1	—	—	—
35	Universal HEGO 1st pump current (UO2SIP-11)	—	W48	—	0.5	ME221-C1-50	—	—	—
36	Universal HEGO 2nd pump current (UO2SIP-21)	—	—	—	—	—	—	—	—
37	—	—	—	—	—	—	—	—	—
38	—	—	—	—	—	—	—	—	—
39	Crankshaft sensor shield/drain	—	—	—	—	—	—	—	—
40	VR sensor return (VRSRTN)	—	W5	—	0.5	SP-0V-1	—	—	—
41	Camshaft position bank 2 (CMP2)	—	—	—	—	—	—	—	—
42	Camshaft position bank 2 exhaust (CMP2 EX)	—	—	—	—	—	—	—	—
43	—	—	—	—	—	—	—	—	—
44	Intake manifold monitor (IMM)	—	W51	—	0.5	ME221-C1-17	—	—	—
45	Intake port deactivation valve position	—	W52	—	0.5	ME221-C1-18	—	—	—
46	Fuel injector driver 3 (INJ 3)	—	W27	—	0.5	ME221-C1-33	—	—	—
47	Cylinder head temperature (CHT)	—	W38	—	0.5	ME221-C1-57	—	—	—
48	Oil pressure switch	—	W54	—	0.5	ME221-C1-7	—	—	—
49	Signal return engine #2	—	W6	—	0.5	SP-0V-1	—	—	—
50	Universal HEGO 1st sense (UO2SN-11)	—	W49	—	0.5	ME221-C1-19	—	—	—
51	Universal HEGO 2nd sense (UO2SN-21)	—	—	—	—	—	—	—	—
52	Knock sensor 1 bank 1 return (KS1−)	—	W7	—	0.5	SP-0V-1	—	—	—
53	Knock sensor 1 bank 1 signal (KS1+)	—	W20	—	0.5	ME221-C1-53	—	—	—
54	VR sensor return (VRSRTN)	—	W8	—	0.5	SP-0V-1	—	—	—
55	Camshaft position bank 1 (CMP1)	—	W18	—	0.5	ME221-C1-22	—	—	—
56	Camshaft position bank 1 exhaust (CMP1 EX)	—	W19	—	0.5	ME221-C1-23	—	—	—
57	Oil pressure switch (MTX)	—	—	—	—	—	—	—	—
58	—	—	—	—	—	—	—	—	—
59	Manifold heater (CE511) or IMRC charge-motion valve (CE315, 5.0L RHD)	—	—	—	—	—	—	—	—
60	IMTV monitor (CE923) or intake manifold tuning valve (CE316, 5.0L RHD)	—	—	—	—	—	—	—	—
61	Fuel injector driver 7 (INJ 7)	—	W31	—	0.5	ME221-C1-33	—	—	—
62	Fuel injector driver 2 (INJ 2)	—	W26	—	0.5	ME221-C1-4	—	—	—
63	—	—	—	—	—	—	—	—	—
64	—	—	—	—	—	—	—	—	—
65	—	—	—	—	—	—	—	—	—
66	—	—	—	—	—	—	—	—	—
67	Knock sensor 2 bank 1 return (KS2−)	—	W9	—	0.5	SP-0V-1	—	—	—
68	Knock sensor 2 bank 1 signal (KS2+)	—	—	—	—	—	—	—	—
69	Crankshaft position return (CKP−)	—	W10	—	0.5	SP-0V-1	—	—	—
70	Crankshaft position (CKP+)	—	W17	—	0.5	ME221-C1-80	—	—	—
71	Canister purge valve (CANP)	—	W47	—	0.5	ME221-C1-42	—	—	—
72	—	—	—	—	—	—	—	—	—
73	—	—	—	—	—	—	—	—	—
74	—	—	—	—	—	—	—	—	—
75	—	—	—	—	—	—	—	—	—
76	—	—	—	—	—	—	—	—	—
77	—	—	—	—	—	—	—	—	—
78	Heater O2 post-cat 1st (HTR12)	—	W39	—	0.5	ME221-C1-16	—	—	—
79	Heater O2 pre-cat 1st (HTR11)	—	W40	—	0.5	ME221-C1-73	—	—	—
80	—	—	—	—	—	—	—	—	—
81	Throttle actuator control motor − (TACM−)	—	W33	—	0.5	ME221-C1-68	—	—	—
82	Throttle actuator control motor + (TACM+)	—	W34	—	0.5	ME221-C1-67	—	—	—
83	Heater O2 post-cat 2nd (HTR22)	—	W41	—	0.5	ME221-C1-12	—	—	—
84	Heater O2 pre-cat 2nd (HTR21)	—	W42	—	0.5	ME221-C1-74	—	—	—
85	—	—	—	—	—	—	—	—	—
86	—	—	—	—	—	—	—	—	—
87	Ignition coil on plug G (COP-G)	—	W21	—	0.5	ME221-C1-32	—	—	—
88	Ignition coil on plug F (COP-F)	—	W22	—	0.5	ME221-C1-31	—	—	—
89	Ignition coil on plug E (COP-E)	—	W23	—	0.5	ME221-C1-2	—	—	—
90	Ignition coil on plug H (COP-H)	—	W24	—	0.5	ME221-C1-1	—	—	—
91	—	—	—	—	—	—	—	—	—
92	Ignition coil on plug D (COP-D)	—	—	—	—	—	—	—	—
93	Ignition coil on plug A (COP-A)	—	—	—	—	—	—	—	—
94	Ignition coil on plug C (COP-C)	—	—	—	—	—	—	—	—
95	Ignition coil on plug B (COP-B)	—	—	—	—	—	—	—	—

SP-0V

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W4	—	0.5	OEM-C175E-23	—	—	—
1	—	—	W5	—	0.5	OEM-C175E-40	—	—	—
1	—	—	W6	—	0.5	OEM-C175E-49	—	—	—
1	—	—	W7	—	0.5	OEM-C175E-52	—	—	—
1	—	—	W8	—	0.5	OEM-C175E-54	—	—	—
1	—	—	W9	—	0.5	OEM-C175E-67	—	—	—
1	—	—	W10	—	0.5	OEM-C175E-69	—	—	—
1	—	—	W11	—	0.5	ME221-C1-52	—	—	—
1	—	—	W12	—	0.5	ME221-C1-84	—	—	—

SP-14V

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W1	—	0.85	OEM-C175E-18	—	—	—
1	—	—	W2	—	0.85	ME221-C1-15	—	—	—
1	—	—	W3	—	0.85	ME221-C1-64	—	—	—

SP-5V1

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W13	—	0.5	OEM-C175E-17	—	—	—
1	—	—	W14	—	0.5	OEM-C175E-34	—	—	—
1	—	—	W15	—	0.5	OEM-C175E-8	—	—	—
1	—	—	W16	—	0.5	ME221-C1-45	—	—	—

Pin map

OEM point	OEM function	OEM family	Target point	Target function	Target family	Evidence
OEM-C175E-1	Fuel injector driver 1 (INJ 1)	injector_out	ME221-C1-63	INJECTOR 1	injector_out	corroborated
OEM-C175E-10	Throttle position negative slope (TP1-NS)	analog_in	ME221-C1-26	ANA VOLT 1	analog_in	corroborated
OEM-C175E-16	Fuel injector driver 8 (INJ 8)	injector_out	ME221-C1-3	INJECTOR 4	injector_out	corroborated
OEM-C175E-17	Buffered power supply sensors (VBPWR)	vref	ME221-C1-45	5V REF	vref	corroborated
OEM-C175E-18	PCM power feed (VPWR, fused)	power_in	ME221-C1-15 + ME221-C1-64	IGN +12V + VBAT	power_in	corroborated
OEM-C175E-2	Fuel injector driver 5 (INJ 5)	injector_out	ME221-C1-63	INJECTOR 1	injector_out	corroborated
OEM-C175E-20	Universal HEGO 1st reference (UREF-11)	wb_vgnd	ME221-C1-20	LSU VM	wb_vgnd	corroborated
OEM-C175E-21	Universal HEGO 2nd reference (UREF-21)	wb_vgnd	—	—	—	corroborated
OEM-C175E-23	Electronic throttle control return (ETCRTN)	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-27	Intake air temperature (IAT)	temp_in	ME221-C1-86	ANA TEMP 1	temp_in	corroborated
OEM-C175E-3	Fuel injector driver 4 (INJ 4)	injector_out	ME221-C1-3	INJECTOR 4	injector_out	corroborated
OEM-C175E-30	Engine oil level switch (EOL)	digital_in	ME221-C1-6	DIG_IN 1	digital_in	corroborated
OEM-C175E-31	Fuel injector driver 6 (INJ 6)	injector_out	ME221-C1-4	INJECTOR 2	injector_out	corroborated
OEM-C175E-34	Voltage reference engine (VREF)	vref	ME221-C1-45	5V REF	vref	corroborated
OEM-C175E-35	Universal HEGO 1st pump current (UO2SIP-11)	wb_ip	ME221-C1-50	LSU IP	wb_ip	corroborated
OEM-C175E-36	Universal HEGO 2nd pump current (UO2SIP-21)	wb_ip	—	—	—	corroborated
OEM-C175E-39	Crankshaft sensor shield/drain	shield	—	—	—	corroborated
OEM-C175E-4	Variable camshaft timing valve 2 (VCT2)	low_side_out	ME221-C1-69	LOW SIDE 5	low_side_out	corroborated
OEM-C175E-40	VR sensor return (VRSRTN)	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-41	Camshaft position bank 2 (CMP2)	trigger_in	—	—	—	corroborated
OEM-C175E-42	Camshaft position bank 2 exhaust (CMP2 EX)	trigger_in	—	—	—	corroborated
OEM-C175E-44	Intake manifold monitor (IMM)	analog_in	ME221-C1-17	ANA VOLT 3	analog_in	corroborated
OEM-C175E-45	Intake port deactivation valve position	analog_in	ME221-C1-18	ANA VOLT 4	analog_in	corroborated
OEM-C175E-46	Fuel injector driver 3 (INJ 3)	injector_out	ME221-C1-33	INJECTOR 3	injector_out	corroborated
OEM-C175E-47	Cylinder head temperature (CHT)	temp_in	ME221-C1-57	ANA TEMP 2	temp_in	corroborated
OEM-C175E-48	Oil pressure switch	digital_in	ME221-C1-7	DIG_IN 2	digital_in	corroborated
OEM-C175E-49	Signal return engine #2	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-5	Variable camshaft timing valve 1 (VCT1)	low_side_out	ME221-C1-44	LOW SIDE 4	low_side_out	corroborated
OEM-C175E-50	Universal HEGO 1st sense (UO2SN-11)	wb_vs	ME221-C1-19	LSU UN	wb_vs	corroborated
OEM-C175E-51	Universal HEGO 2nd sense (UO2SN-21)	wb_vs	—	—	—	corroborated
OEM-C175E-52	Knock sensor 1 bank 1 return (KS1−)	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-53	Knock sensor 1 bank 1 signal (KS1+)	knock_in	ME221-C1-53	KNOCK 1 SIGNAL	knock_in	corroborated
OEM-C175E-54	VR sensor return (VRSRTN)	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-55	Camshaft position bank 1 (CMP1)	trigger_in	ME221-C1-22	CAM A VR+	trigger_in	corroborated
OEM-C175E-56	Camshaft position bank 1 exhaust (CMP1 EX)	trigger_in	ME221-C1-23	CAM A VR-	trigger_in	corroborated
OEM-C175E-57	Oil pressure switch (MTX)	digital_in	—	—	—	corroborated
OEM-C175E-59	Manifold heater (CE511) or IMRC charge-motion valve (CE315, 5.0L RHD)	—	—	—	—	corroborated
OEM-C175E-6	Variable camshaft timing valve 4 (VCT4)	low_side_out	ME221-C1-37	LOW SIDE RELAY 11	low_side_out	corroborated
OEM-C175E-60	IMTV monitor (CE923) or intake manifold tuning valve (CE316, 5.0L RHD)	—	—	—	—	corroborated
OEM-C175E-61	Fuel injector driver 7 (INJ 7)	injector_out	ME221-C1-33	INJECTOR 3	injector_out	corroborated
OEM-C175E-62	Fuel injector driver 2 (INJ 2)	injector_out	ME221-C1-4	INJECTOR 2	injector_out	corroborated
OEM-C175E-67	Knock sensor 2 bank 1 return (KS2−)	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-68	Knock sensor 2 bank 1 signal (KS2+)	knock_in	—	—	—	corroborated
OEM-C175E-69	Crankshaft position return (CKP−)	sensor_ground	ME221-C1-52 + ME221-C1-84	SENSORS GROUND + Sensor Ground	sensor_ground	corroborated
OEM-C175E-7	Variable camshaft timing valve 3 (VCT3)	low_side_out	ME221-C1-39	LOW SIDE 6	low_side_out	corroborated
OEM-C175E-70	Crankshaft position (CKP+)	trigger_in	ME221-C1-80	CRANK VR+	trigger_in	corroborated
OEM-C175E-71	Canister purge valve (CANP)	low_side_out	ME221-C1-42	LOW SIDE RELAY 12	low_side_out	corroborated
OEM-C175E-78	Heater O2 post-cat 1st (HTR12)	low_side_out	ME221-C1-16	LSU HEATER -VE	low_side_out	corroborated
OEM-C175E-79	Heater O2 pre-cat 1st (HTR11)	low_side_out	ME221-C1-73	LOW SIDE 1	low_side_out	corroborated
OEM-C175E-8	Electronic throttle control reference (ETCREF)	vref	ME221-C1-45	5V REF	vref	corroborated
OEM-C175E-81	Throttle actuator control motor − (TACM−)	hbridge_out	ME221-C1-68	Stepper 2 / A2	hbridge_out	corroborated
OEM-C175E-82	Throttle actuator control motor + (TACM+)	hbridge_out	ME221-C1-67	Stepper 1 / A1	hbridge_out	corroborated
OEM-C175E-83	Heater O2 post-cat 2nd (HTR22)	low_side_out	ME221-C1-12	LOW SIDE 2	low_side_out	corroborated
OEM-C175E-84	Heater O2 pre-cat 2nd (HTR21)	low_side_out	ME221-C1-74	LOW SIDE 3	low_side_out	corroborated
OEM-C175E-87	Ignition coil on plug G (COP-G)	ignition_out	ME221-C1-32	COIL 1	ignition_out	corroborated
OEM-C175E-88	Ignition coil on plug F (COP-F)	ignition_out	ME221-C1-31	COIL 2	ignition_out	corroborated
OEM-C175E-89	Ignition coil on plug E (COP-E)	ignition_out	ME221-C1-2	COIL 3	ignition_out	corroborated
OEM-C175E-9	Throttle position positive slope (TP2-PS)	analog_in	ME221-C1-56	ANA VOLT 2	analog_in	corroborated
OEM-C175E-90	Ignition coil on plug H (COP-H)	ignition_out	ME221-C1-1	COIL 4	ignition_out	corroborated
OEM-C175E-92	Ignition coil on plug D (COP-D)	ignition_out	—	—	—	corroborated
OEM-C175E-93	Ignition coil on plug A (COP-A)	ignition_out	—	—	—	corroborated
OEM-C175E-94	Ignition coil on plug C (COP-C)	ignition_out	—	—	—	corroborated
OEM-C175E-95	Ignition coil on plug B (COP-B)	ignition_out	—	—	—	corroborated

Cut list

Wire	From	To	Gauge (mm²)	Length	Signal	Ident
W1	OEM-C175E-18	SP-14V-1	0.85	no route	PCM power feed (VPWR, fused)	—
W2	SP-14V-1	ME221-C1-15	0.85	no route	IGN +12V	—
W3	SP-14V-1	ME221-C1-64	0.85	no route	VBAT	—
W4	OEM-C175E-23	SP-0V-1	0.5	no route	Electronic throttle control return (ETCRTN)	—
W5	OEM-C175E-40	SP-0V-1	0.5	no route	VR sensor return (VRSRTN)	—
W6	OEM-C175E-49	SP-0V-1	0.5	no route	Signal return engine #2	—
W7	OEM-C175E-52	SP-0V-1	0.5	no route	Knock sensor 1 bank 1 return (KS1−)	—
W8	OEM-C175E-54	SP-0V-1	0.5	no route	VR sensor return (VRSRTN)	—
W9	OEM-C175E-67	SP-0V-1	0.5	no route	Knock sensor 2 bank 1 return (KS2−)	—
W10	OEM-C175E-69	SP-0V-1	0.5	no route	Crankshaft position return (CKP−)	—
W11	SP-0V-1	ME221-C1-52	0.5	no route	SENSORS GROUND	—
W12	SP-0V-1	ME221-C1-84	0.5	no route	Sensor Ground	—
W13	OEM-C175E-17	SP-5V1-1	0.5	no route	Buffered power supply sensors (VBPWR)	—
W14	OEM-C175E-34	SP-5V1-1	0.5	no route	Voltage reference engine (VREF)	—
W15	OEM-C175E-8	SP-5V1-1	0.5	no route	Electronic throttle control reference (ETCREF)	—
W16	SP-5V1-1	ME221-C1-45	0.5	no route	5V REF	—
W17	OEM-C175E-70	ME221-C1-80	0.5	no route	Crankshaft position (CKP+)	—
W18	OEM-C175E-55	ME221-C1-22	0.5	no route	Camshaft position bank 1 (CMP1)	—
W19	OEM-C175E-56	ME221-C1-23	0.5	no route	Camshaft position bank 1 exhaust (CMP1 EX)	—
W20	OEM-C175E-53	ME221-C1-53	0.5	no route	Knock sensor 1 bank 1 signal (KS1+)	—
W21	OEM-C175E-87	ME221-C1-32	0.5	no route	Ignition coil on plug G (COP-G)	—
W22	OEM-C175E-88	ME221-C1-31	0.5	no route	Ignition coil on plug F (COP-F)	—
W23	OEM-C175E-89	ME221-C1-2	0.5	no route	Ignition coil on plug E (COP-E)	—
W24	OEM-C175E-90	ME221-C1-1	0.5	no route	Ignition coil on plug H (COP-H)	—
W25	OEM-C175E-1	ME221-C1-63	0.5	no route	Fuel injector driver 1 (INJ 1)	—
W26	OEM-C175E-62	ME221-C1-4	0.5	no route	Fuel injector driver 2 (INJ 2)	—
W27	OEM-C175E-46	ME221-C1-33	0.5	no route	Fuel injector driver 3 (INJ 3)	—
W28	OEM-C175E-3	ME221-C1-3	0.5	no route	Fuel injector driver 4 (INJ 4)	—
W29	OEM-C175E-2	ME221-C1-63	0.5	no route	Fuel injector driver 5 (INJ 5)	—
W30	OEM-C175E-31	ME221-C1-4	0.5	no route	Fuel injector driver 6 (INJ 6)	—
W31	OEM-C175E-61	ME221-C1-33	0.5	no route	Fuel injector driver 7 (INJ 7)	—
W32	OEM-C175E-16	ME221-C1-3	0.5	no route	Fuel injector driver 8 (INJ 8)	—
W33	OEM-C175E-81	ME221-C1-68	0.5	no route	Throttle actuator control motor − (TACM−)	—
W34	OEM-C175E-82	ME221-C1-67	0.5	no route	Throttle actuator control motor + (TACM+)	—
W35	OEM-C175E-10	ME221-C1-26	0.5	no route	Throttle position negative slope (TP1-NS)	—
W36	OEM-C175E-9	ME221-C1-56	0.5	no route	Throttle position positive slope (TP2-PS)	—
W37	OEM-C175E-27	ME221-C1-86	0.5	no route	Intake air temperature (IAT)	—
W38	OEM-C175E-47	ME221-C1-57	0.5	no route	Cylinder head temperature (CHT)	—
W39	OEM-C175E-78	ME221-C1-16	0.5	no route	Heater O2 post-cat 1st (HTR12)	—
W40	OEM-C175E-79	ME221-C1-73	0.5	no route	Heater O2 pre-cat 1st (HTR11)	—
W41	OEM-C175E-83	ME221-C1-12	0.5	no route	Heater O2 post-cat 2nd (HTR22)	—
W42	OEM-C175E-84	ME221-C1-74	0.5	no route	Heater O2 pre-cat 2nd (HTR21)	—
W43	OEM-C175E-5	ME221-C1-44	0.5	no route	Variable camshaft timing valve 1 (VCT1)	—
W44	OEM-C175E-4	ME221-C1-69	0.5	no route	Variable camshaft timing valve 2 (VCT2)	—
W45	OEM-C175E-7	ME221-C1-39	0.5	no route	Variable camshaft timing valve 3 (VCT3)	—
W46	OEM-C175E-6	ME221-C1-37	0.5	no route	Variable camshaft timing valve 4 (VCT4)	—
W47	OEM-C175E-71	ME221-C1-42	0.5	no route	Canister purge valve (CANP)	—
W48	OEM-C175E-35	ME221-C1-50	0.5	no route	Universal HEGO 1st pump current (UO2SIP-11)	—
W49	OEM-C175E-50	ME221-C1-19	0.5	no route	Universal HEGO 1st sense (UO2SN-11)	—
W50	OEM-C175E-20	ME221-C1-20	0.5	no route	Universal HEGO 1st reference (UREF-11)	—
W51	OEM-C175E-44	ME221-C1-17	0.5	no route	Intake manifold monitor (IMM)	—
W52	OEM-C175E-45	ME221-C1-18	0.5	no route	Intake port deactivation valve position	—
W53	OEM-C175E-30	ME221-C1-6	0.5	no route	Engine oil level switch (EOL)	—
W54	OEM-C175E-48	ME221-C1-7	0.5	no route	Oil pressure switch	—

Bill of materials

Category	Part number	Manufacturer	Description	Qty	Unit
connector	COYOTE-PCM-A	—	2011–14 Mustang GT PCM 70-way connector C175E (housing P/N unknown)	1.000	ea

ECU setup sheet

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

Findings

Open (21)

Severity	Code	Subject	Message
error	DBW_SENSOR_INPUT	pedal	Only 0 pedal track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them.
error	DBW_SENSOR_INPUT	tps	Only 0 throttle-position track(s) found. An electronic throttle needs two (main and sub) so the ECU can cross-check them.
error	NET_MERGED	ME221-C1-3 + OEM-C175E-16 + OEM-C175E-3	2 different OEM functions share one net: OEM-C175E-16 Fuel injector driver 8 (INJ 8); OEM-C175E-3 Fuel injector driver 4 (INJ 4)
error	NET_MERGED	ME221-C1-33 + OEM-C175E-46 + OEM-C175E-61	2 different OEM functions share one net: OEM-C175E-46 Fuel injector driver 3 (INJ 3); OEM-C175E-61 Fuel injector driver 7 (INJ 7)
error	NET_MERGED	ME221-C1-4 + OEM-C175E-31 + OEM-C175E-62	2 different OEM functions share one net: OEM-C175E-31 Fuel injector driver 6 (INJ 6); OEM-C175E-62 Fuel injector driver 2 (INJ 2)
error	NET_MERGED	ME221-C1-63 + OEM-C175E-1 + OEM-C175E-2	2 different OEM functions share one net: OEM-C175E-1 Fuel injector driver 1 (INJ 1); OEM-C175E-2 Fuel injector driver 5 (INJ 5)
error	PHYS_REQUIRED_OPEN	ME221-C1-10	ME221-C1-10 "GROUND CHASSIS" is required but not wired.
error	PHYS_REQUIRED_OPEN	ME221-C1-61	ME221-C1-61 "GROUND" is required but not wired.
error	PHYS_REQUIRED_OPEN	ME221-C1-89	ME221-C1-89 "GROUND" is required but not wired.
error	PHYS_REQUIRED_OPEN	ME221-C1-90	ME221-C1-90 "GROUND" is required but not wired.
error	REQUIRED_UNMAPPED	OEM-C175E-41	Required OEM function "Camshaft position bank 2 (CMP2)" (trigger_in) is not connected to the new ECU.
error	REQUIRED_UNMAPPED	OEM-C175E-42	Required OEM function "Camshaft position bank 2 exhaust (CMP2 EX)" (trigger_in) is not connected to the new ECU.
error	REQUIRED_UNMAPPED	OEM-C175E-92	Required OEM function "Ignition coil on plug D (COP-D)" (ignition_out) is not connected to the new ECU.
error	REQUIRED_UNMAPPED	OEM-C175E-93	Required OEM function "Ignition coil on plug A (COP-A)" (ignition_out) is not connected to the new ECU.
error	REQUIRED_UNMAPPED	OEM-C175E-94	Required OEM function "Ignition coil on plug C (COP-C)" (ignition_out) is not connected to the new ECU.
error	REQUIRED_UNMAPPED	OEM-C175E-95	Required OEM function "Ignition coil on plug B (COP-B)" (ignition_out) is not connected to the new ECU.
warn	DATASET_GAP	Mustang GT PCM C175E	32 of 95 cavities on Mustang GT PCM C175E have no pin data (11,12,13,14,15,19,22,24,25,26,28,29,32,33,37,38,43,58,63,64,65,66,72,73,74,75,76,77,80,85,86,91). Anything there is invisible to these checks.
warn	DBW_MOTOR_CURRENT	ME221-C1-67	Cannot confirm ME221 can drive the throttle motor: ME221-C1-67 "Stepper 1 / A1" is rated 0.5 A peak, but the motor stall current at OEM-C175E-82 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	ME221-C1-68	Cannot confirm ME221 can drive the throttle motor: ME221-C1-68 "Stepper 2 / A2" is rated 0.5 A peak, but the motor stall current at OEM-C175E-81 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	NO_FUEL_PUMP	fuel pump	This engine harness has no fuel-pump control path: no fuel-pump relay output is wired to the new ECU. If the stock car switches the pump outside the ECU (an airflow-meter contact or a separate module), the standalone must drive the pump relay itself — see the install notes for this car.
info	UNMAPPED	OEM	8 optional OEM pins are not mapped: OEM-C175E-21 Universal HEGO 2nd reference (UREF-21); OEM-C175E-36 Universal HEGO 2nd pump current (UO2SIP-21); OEM-C175E-39 Crankshaft sensor shield/drain; OEM-C175E-51 Universal HEGO 2nd sense (UO2SN-21); OEM-C175E-57 Oil pressure switch (MTX); OEM-C175E-59 Manifold heater (CE511) or IMRC charge-motion valve (CE315, 5.0L RHD); OEM-C175E-60 IMTV monitor (CE923) or intake manifold tuning valve (CE316, 5.0L RHD); OEM-C175E-68 Knock sensor 2 bank 1 signal (KS2+)

Accepted (0)

Code	Subject	Reason	By

Notes

Fit check: needs add-on. Resolve these before building: - No drive-by-wire; needs a cable-throttle conversion or an external DBW controller - Needs CAN (ford_mustang_2011_14); not documented for this ECU - Only 4 ignition outputs for 8 cylinders: wasted spark (pair coils per firing order) - Only 4 injector outputs for 8 injectors: batch / semi-sequential injection - This car has PATS immobilizer; needs a delete/bypass - Trigger pattern needs a workaround: derived: The 2011-14 Mustang GT Coyote 5.0 uses a 60-2 (VR) crank wheel. ME documents generic 60-2 ('60-2 (GM/Vauxhall/BMW/VW/Peugeot etc)') but associates Ford with 36-1, and lists no Coyote 4-cam VCT decoder. Crank 60-2 is derivable; t... Auto-mapped by auto_map() from the library pin data on 2026-10-11. Review every wire against both manuals before building. Open items: - OEM-C175E 41: Camshaft position bank 2 (CMP2): no free cam_vr/cam_hall/frequency_in input on Motorsport Electronics ME221 - OEM-C175E 42: Camshaft position bank 2 exhaust (CMP2 EX): no free cam_vr/cam_hall/frequency_in input on Motorsport Electronics ME221 - OEM-C175E 92: Ignition coil on plug D (COP-D): no free ignition output on Motorsport Electronics ME221 - OEM-C175E 93: Ignition coil on plug A (COP-A): no free ignition output on Motorsport Electronics ME221 - OEM-C175E 94: Ignition coil on plug C (COP-C): no free ignition output on Motorsport Electronics ME221 - OEM-C175E 95: Ignition coil on plug B (COP-B): no free ignition output on Motorsport Electronics ME221 - ME221-C1 10: GROUND CHASSIS: required by Motorsport Electronics ME221 but no stock pin feeds it; wire by hand - ME221-C1 61: GROUND: required by Motorsport Electronics ME221 but no stock pin feeds it; wire by hand - ME221-C1 89: GROUND: required by Motorsport Electronics ME221 but no stock pin feeds it; wire by hand - ME221-C1 90: GROUND: required by Motorsport Electronics ME221 but no stock pin feeds it; wire by hand - Fuel-pump control: Motorsport Electronics ME221 needs to drive the fuel pump, but the stock ECU has no fuel-pump output (an airflow-meter contact or a separate module runs it). Add a fuel-pump relay on a spare low-side output — see the install notes for this car. Not wired: - OEM-C175E 68: Knock sensor 2 bank 1 signal (KS2+): no free knock input on Motorsport Electronics ME221 - OEM-C175E 39: Crankshaft sensor shield/drain: no shield pin on Motorsport Electronics ME221 - OEM-C175E 36: Universal HEGO 2nd pump current (UO2SIP-21): no free wb_ip on Motorsport Electronics ME221 - OEM-C175E 51: Universal HEGO 2nd sense (UO2SN-21): no free wb_vs on Motorsport Electronics ME221 - OEM-C175E 21: Universal HEGO 2nd reference (UREF-21): no free wb_vgnd on Motorsport Electronics ME221 - OEM-C175E 57: Oil pressure switch (MTX): no free switch_in/frequency_in/analog_0_5 on Motorsport Electronics ME221 - OEM-C175E 59: Manifold heater (CE511) or IMRC charge-motion valve (CE315, 5.0L RHD): not classified in the library; wire by hand - OEM-C175E 60: IMTV monitor (CE923) or intake manifold tuning valve (CE316, 5.0L RHD): not classified in the library; wire by hand

Sources

Reliability	Kind	Title	URL	Archive	Captured	SHA-256
4	vendor_doc	Motorsport Electronics GEN2 ME221/ME360/ME442 wire-in pinout	https://motorsport-electronics.co.uk/onlinehelp/html/ME442ME360ME221GEN2Wire-InPinout.html	—	—	—
3	community_copy	iihs.net: 2011 Mustang factory Wiring Diagrams (Cell 24 Electronic Engine Controls, 5.0L)	https://iihs.net/fsm/?d=711	—	—	—
2	community_copy	rusEFI OEM-Docs: Coyote C175E pinout (Pin/Circuit/Gauge/Circuit Function/Qualifier)	https://raw.githubusercontent.com/rusefi/rusefi_documentation/master/OEM-Docs/Ford/Coyote-175e-pinout-B.png	—	—	—