Supra DIY Wiring Harness

	A	B	C	D	E	F	G	H	I
1	40-Pin A Plug "E10"
2
3	Pin	Description	Symbol	AEM Harness	Input / Output	Notes	Destination Connector	Destination Pin	Wire Color
4	1	Ignition Switch	IGSW	12 Volt Switched	C1-48	Input with 10K pulldown.	II1	13
5	2	Speed Signal from ODO	SP1	Digital 4	C1-29	Vehicle Speed Sensor Input from ODO	II1	11
6	3	Kick Down Switch	KD			Not used
7	4	Stop Light Switch - only some use.	STP	Digital 6	C1-31	10K pullup to 12v. Input only.	IJ1	11
8	5	EGW				Not used by AEM.	II1	6
9	6	Check Engine Light	W	Lowside 0, no pullup.	C1-41	AEM Recommends as fuel pump.	II1	15
10	7	Neutral Start Switch "R"	R			Not used
11	8	--				Not used
12	9	Neutral start switch "2"	2			Not used
13	10	Neutral start switch "L"	L			Not used
14	11	ABS				Not used
15	12	Cruise Control ECU "OD1"	OD1			Not used
16	13	TRC ECU -	TRC-			Not used
17	14	TRE ECU +	TRC+			Not used
18	15	Defogger relay, tail light relay	ELS			Not used
19	16	Tachometer	TACO	Lowside 5	C1-2	Tachometer get it's signal from here.	II1	29
20	17	TDCL	TT			Not used
21	18	ECT pattern select switch	M			Automatic only
22	19	TDCL	TE2			Not used
23	20	TDCL, Check connector	TE1			Not used
24	21	Fuel Pump ECU	DI			Not used
25	22	Fuel pump ECU	FPC		C1-58	Fuel pump control
26	23	A/C Magnet Clutch Relay	ACMG	Lowside 4	C1-1	ECU control of the AC enables the AC to be turned off during hard acceleration. Lowside 4 allows for the Infinity to enable/disable.	EA1	2
27	24	EFI Main Relay	M-REL			ECU control of the main power relay allows the ECU to remain powered up after engine shutdown to fully open the ISCV. Not used by AEM.	EA1	8
28	25	Manual Indicator Light	MI			Auto only
29	26	TRAC ECU	EFI-			Not used
30	27	TRAC ECU	EF+			Not used
31	28	O/D Main Switch	13			Not used
32	29	--
33	30	--
34	31	EFI Main Relay	+B	+12v	C1-63	EA3	EA3	3
35	32	EFI Main Relay	+B1	+12v	C1-68	EA3	EA3	3
36	33	Battery	BATT	Battery Permanent Power	C1-10	Always on	EA1	4
37	34	A/C Amplifier	A/C	Analog 16	C1-71	A/C Request Switch, input. Wired to Analog 18 (C1-70 on my harness)	II1	31
38	35	--
39	36	--
40	37	--
41	38	TRAC ECU	NEO	Lowside 5	C1-2	Tachometer
42	39	--
43	40	--
44
45	80-Pin B Plug "E9"
46	Pin	Description	Symbol	AEM Harness	Input / Output	Notes	Destination Connector	Destination Pin
47	1	AUTO ONLY: O/D Direct Clutch Speed Sensor	NC0-	Sensor Ground	C1-24	"-" Direct Clutch Speed Sensor. Used as ground.
48	2	--
49	3	No. 2 Vehicle Speed Sensor	SP2-			Not used
50	4	ECM Ground.			C1-67	Power Ground	Power Ground + Junction 2	GROUND ALL OF JUNCTION CONNECTOR 2!!!!!
51	5	Camshaft position sensor No. 2	G2-			Not used
52	6	Camshaft position sensor No. 1	G1-	Cam Position Sensor 1 VR-	C1-19	Cam position sensor 1 Ground	Cam sensor ground
53	7	Crankshaft Position Sensor	NE-		C1-18	Crank Position sensor Ground	Crank sensor ground
54	8	A/T No 3. Solenoid	S3			Not used
55	9	A/T No. 2 Solenoid	S2			Not used
56	10	A/T No. 1 Solenoid	S1			Not used
57	11	--
58	12	A/T				Not used
59	13	A/T				Not used
60	14	A/T				Not used
61	15	Injector 6	#60	Injector 6	C1-64	Injector 6	Depends on coil setup
62	16	Injector 5	#50	Injector 5	C1-65	Injector 5	Depends on coil setup
63	17	Injector 4	#40	Injector 4	C1-66	Injector 4	Depends on coil setup
64	18	Injector 3	#30	Injector 3	C1-76	Injector 3	Depends on coil setup
65	19	Injector 2	#20	Injector 2	C1-77	Injector 2	Depends on coil setup
66	20	Injector 1	#10	Injector 1	C1-78	Injector 1	Depends on coil setup
67	21	O/D Direct Clutch Speed Sensor	NC0+			Not used
68	22	--
69	23	No. 2 Vehicle Speed Sensor	SP2+			Not used
70	24	A/T Oil Temp Sensor	OIL			Not used
71	25	Camshaft Position sensor No. 2	G2			Not used
72	26	Camshaft Position sensor No. 1	G1	Cam Position Sensor 1 VR+	C1-20	VR cam input	Cam Sensor +
73	27	Crankshaft Position Sensor	NE	Crank Position Sensor VR+	C1-17	VR crank input	Crank Sensor +
74	28	MAF	E21			Not used
75	29	Data link connector 1	VF1
76	30	--
77	31	A/T Solenoid	SLT+	+12v	C1-63	Excluded by AEM. Some custom harnesses use, but redundant as it already goes to 31A (Main EFI)
78	32	IAC Valve	ISC4	Stepper Idle 1B	C1-59	Stepper idle.
79	33	IAC Valve	ISC3	Stepper Idle 2B	C1-60	Stepper idle.
80	34	IAC Valve	ISC2	Stepper 2A	C1-80	Stepper idle.
81	35	IAC Valve	ISC1	Stepper 1A	C1-79	Stepper idle.
82	36	--
83	37	--
84	38	VSV for Exhaust Bypass Valve	VSV3			Not used
85	39	VSV for exhaust gas control valve	VSV2			Not used
86	40	VSV for intake air control valve	VSV1			Not used
87	41	Throttle position sensor+ (TPS) Turbo pressure sensor+ (MAP)	VCC+	+5V Sensor Power	C1-49	This pin is used to supply +5V power to the throttle position and MAP sensors.	AEM MAP
88	42	Sub-throttle position sensor	VTA2			Not used
89	43	Throttle position sensor	VTA1	Analog 7	C1-51	TPS Input
90	44	Engine coolant temp sensor	THW	Temp sensor	C1-38	Coolant temp sensor
91	45	Intake air temp sensor	THA	Air Temp Sensor	C1-39	Air Temp (IAT)
92	46	EGR Gas Temp	THG			Not used
93	47	Sub heated oxygen sensor	OX2			Not used
94	48	Main heated oxygen sensor	OX1			Not used
95	49	Knock Sensor 2	KNK2	Knock Sensor 2	C1-45	Sensor Input for Cylinders 4-6.
96	50	Knock Sensor 1	KNK1	Knock Sensor 1	C1-44	Sensor Input for Cylinders 1-3.
97	51	--
98	52	Igniter 6	IGT 6		C1-15	Coil 6
99	53	Igniter 5	IGT 5		C1-16	Coil 5
100	54	Igniter 4	IGT 4		C1-11	Coil 4