ECU Terminals Connections

4A-GE AE82 Sedan (Chevrolet Nova/Toyota FX-16) USA 

provided by Richard White

4A-G Electronic Control Unit (ECU), 8608~8708,Corolla AE82 FX16 GTS US Market, Connector Shown.

Toyota P/N (auto) 89661-02021-84; (M/T) 89661-02011-84; 8708~8808 (FED Spec.) 89661-01010-84; 8708~8808 (CA Spec.) 89661-01020-84

 

V  Connector

Pin No.	Symbol	Color	Terminal
1	NSW	B-W	(88f FX16 A/T),  Neutral Start Switch
2	VF	R-W	Check connector
3	STA	B	Starter switch
4	# 10	L	No. 3, 4 injector
5	E01	BR	Engine ground (Power)
6	S/TH	G-R	Vacuum switching valve (VSV)
7	E1	BR	Engine ground
8	IGT	B	Igniter
9	# 20	Y	No. 1, 2 injector
10	E02	BR	Engine ground (Power)

 

U Connector

Pin No.	Symbol	Color	Terminal
1	NE	W	Engine revolution sensor
2	THG	P-G	(88f FX16), EGR Temp Sensor  [For California]
3	G+	B	Engine revolution sensor
4	G-	W	Engine revolution sensor
5	IGF	B-Y	Igniter
6	IDL	L	Throttle sensor
7	T	L-W	Check connector
8	WAN	G-W	Warning light
9	FPU	G-Y	(88f FX16),  VSV (FPU)
10	THW	W	Water temp. sensor
11	VTA	R	Throttle sensor
12	VCC	Y	Throttle sensor
13	OX	B	Oxygen sensor
14	E2 (E21)	BR	Sensor Earth [E2: 88f FX16]
15	A/C	B-W	A/C Magnet clutch
16
17	HT	P-B	Oxygen Sensor Heater (88f Fx16),
18	I/UP (VISC)	B	Vacuum switching valve  [Idle up]

 

T Connector

Pin No.	Symbol	Color	Terminal
1	+B1	B-R	Main relay
2	BATT	R-L	Battery
3	THA	Y	Inlet air temp. sensor
4	VS	Y-L	Air flow meter
5	VC	L-R	Air flow meter
6	L1	Y-L	(88f FX16 A/T),  ECT Computer
7	L3	Y-R	(88f FX16 A/T),  ECT Computer
8	+B	B-R	Main relay
9	-		- -
10	SPD	V-W	Speedometer
11	STP	G-W	(88f FX16), Stop Light Switch
12	E21	B-R	Sensor earth
13	L2	Y-G	(88f FX16 A/T),  ECT Computer
14	ECT	P	(88f FX16 A/T),  ECT Computer

 

Source:  Toyota Repair Manual for Corolla FX/FX16 1988.

Note: Connector pin layout shows placement of T connector swapped with V connector.