2jz ecu pinouts

2JZ ECU Pinouts

2002-2005 Lexus IS300 Manual and Automatic

NOTE: All colored cells below only show primary wire color, they do not show the stripe. Please see the "Text" color cell adjacent to the color.

MAF wiring
ECU		Color			Purpose
A5		B-R			Switched power fm ECU. All VSV/O2/transponder/MAF
A6		B-R
B34		BR			Gnd: P/S press.TPS.PPS.MAF.Vapor
C26		L-W			MAF
C27		G-B			MAF
C32		L-B			MAF
Pin	ECU	Igniter wiring
		Color			Purpose
1		B-R			Ignition coil 1
2		G			Ignition coil 2
3	D7	BR			Gnd F. Intake. For shields
4	C7	B-L			IGF
5	E26	B-Y			IN3.to IGNpin 10
6	E27	B-R			IN2.to IGNpin 2
7	C13	GR-B			IN1
8
9		B-W			Power from IGN Sw. Joins coil-
10		B			Ignition coil 3
TPS wiring
ECU		Color			Purpose
B35		L-Y			5V Positive
E25		W-R			TPS VTA1
E24		G-Y			TPS VTA2
B34		BR			Gnd: P/S press.TPS.PPS.MAF.Vapor
Pin	ECU	Throttle Control Motor
		Color			Purpose
1	E2	R			Throttle (TCM M-)
2	E3	W			Throttle (TCM M+)
3	E10	R-W			Throttle (TCM C+)
4	E9	Y			Throttle (TCM C-)
Pin	ECU	Power Steering Pressure sensor wiring
		Color			Purpose
1	B34	BR			Gnd: P/S press.TPS.PPS.MAF.Vapor
2	C23	V			P/S pressure signal
3	B35	L-Y			5V positive
Pin	ECU	Crank Position Sensor wiring
		Color			Purpose
E31		(B-W)			Crank Sensor
E32		(L)			Cam/Crank (-) joined

			A	M
Pin		Color			Purpose
E3 Connector "A on diagram"	1	W-B			Gnd. Left Fender Apron
	2	W-B			Gnd. Left Fender Apron
	3
	4	B-Y			Power. EFI Relay, pin 5
	5	B-R			Switched power. All VSV/O2/transponder/MAF
	6	B-R
	7	L-W			ETCS fuse
	8	B-L			Stop light switch
	9
	10
	11	B-Y			to unlock warning
	12	B			fm clutch start/park neutral
	13	B-O			EFI relay signal (+) pin 1
	14	G-Y			Circuit opening relay (-) pin2
	15	G-R			Fuel Pump Relay signal (-)
	16	L-W			From A/C comp relay
	17	B-O			Ignition Switch 7.5A fuse
	18	LG-R			Ambient air temp (+) A/C
	19
	20	L			Fm airbag sensor
	21
	22
	23
	24
	25	L-Y			A/C dual pressure switch
	26	R-W			fm multi display/airbag sens
	27
	28
	29
	30	W			Security Indicator Light
	31	G-B			Transponder key pin 2
Pin	ECU	Cam Position Sensor wiring
		Color			Purpose
E29		(G)			Cam Sensor
E32		(L)			Cam/Crank (-) joined

			A	M
Pin		Color			Purpose
E4 Connector "B on diagram"	1
	2	R-L			CEL (malfunction indicator)
	3	R-W			Fm multifunction Fm airbag
	4	G-W			Fm Stop Light SW
	5	GR-R			STFU (shift up??)
	6	GR-G			STFD (shift down??)
	7	G-B			O2 B1S2 heater
	8	R-W			O2 B2S2 heater
	9	G			To Skid Control
	10	P			VSV #8 pressure sw valve
	11	W-L			To Speedo
	12	Y-G			A/T LL position
	13	Y-R			GR-B A/T Drive Position. Y-R 02 M/T
	14	LG-B			A/T To shift lock control ECU
	15	G-Y			A/T Transmission control switch
	16	B			Tach, fm igniter pin9
	17	(W)			O2 B2S2 signal
	18	R-Y			Fm Skid ECU
	19	P			To Skid Control (L-B[pin30] on 02 M/T)
	20	O			Multiplex - Theft deter.
	21	O			Multiplex - Theft deter.
	22	LG			Datalink connector 3 pin15
	23	P-B			Transponder key pin 4
	24	V			Transponder key pin 3 looks brown
	25	L-W			V# 7 Vapor Pressure sensor
	26
	27
	28	(W)			O2 B1S2 signal
	29	W-G			Fm Skid ECU
	30	L-B			To Skid Control(P[pin19]on 02 M/T
	31	L-R			Cruise control switch
	32	L-W			Pedal Position Sensor VPA2
	33	P-L			Pedal Position Sensor VPA1
	34	BR			Gnd: P/S press.TPS.PPS.MAF.Vapor
	35	L-Y			P/S oil press. 5V Positive

Click here for printable PDF. The pinout for manual and auto IS300 is listed side-by-side.

			A	M
Pin		Color			Purpose
E5 Connector "C on diagram"	1	W-B			Gnd. F. Intake (joins E6-7 BR)
	2	W-B
	3	BR			Gnd, c. intake (joins E7-4)
	4
	5
	6
	7	B-L			Igniter pin4. IGF
	8
	9
	10
	11
	12
	13	GR-B			Igniter pin7. IN1 (looks light brown)
	14
	15	B-W			Injector 6
	16	R-W			Injector 4
	17	L			Injector 2
	18
	19
	20
	21	Y-G			VSV #2 ACIS(discolored looks L-Brown)
	22	Y-R			VSV #3 Cannister closed(discolored as above)
	23	V			P/S pressure signal
	24	R			Coolant temp sensor
	25
	26	L-W			MAF
	27	G-B			MAF (looks blue)
	28	(B)			O2 B2S1 signal
	29
	30	P			O2 B2S1 heater
	31
	32	L-B			MAF

			A	M
Pin		Color			Purpose
E6 Connector "D on diagram"	1	(B)			Knock 1
	2	(W)			Knock 2
	3	G-R			A/T Neutral position
	4	G-W			A/T 2L position
	5	R-B			A/T Reverse Position
	6	G			A/T P position
	7	BR			Gnd Front Intake (shield gnd) Joins E5-1)
	8
	9	LG			O2 B1S1 heater (light green)
	10	LG-B			SLU-
	11	G-W			SLU+
	12	R-W			SLN-
	13	Y-R			SLN+
	14	W-R			Oil Level Sensor
	15	L-R			Alternator pin 1
	16	B-R			S4
	17	W-L			S3
	18	G-Y			S2
	19	Y			S1
	20	G			NCO-(O/D direct clutch spd sensor
	21	R			NCO+(O/D direct clutch spd sensor
	22	R-L			SP2-(Vehicle Speed Sensor)
	23	L-Y			SP2+(Vehicle Speed Sensor)
	24
	25
	26
	27
	28	(W)			O2 B1S1 signal (discolored, looks pink)
	29
	30
	31
	32
	33
	34	R-B			SLT-
	35	B-Y			SLT+

			A	M
Pin		Color			Purpose
E7 Connector "E on diagram"	1	B-W			Shield for TCM M-,M+ (tape covered)
	2	R			Throttle (TCM M-) (CAUTION! See pin 15)
	3	W			Throttle (TCM M+)
	4	BR			Gnd, center intake (joins E5-3)
	5	Y-B			VVTi- (looks tan)
	6	R-Y			VVTi+
	7	GR			Oil Press Sw
	8	L-B			From Rad Fan
	9	Y			Throttle (TCM C-)
	10	R-W			Throttle (TCM C+)
	11	W-G			VSV #4 Evap
	12
	13	L-R			Injector 5
	14	V			Injector 3(discolored looks L-brown)
	15	R			Injector 1 (CAUTION! See pin 2)
	16
	17
	18
	19
	20
	21
	22
	23
	24	G-Y			TPS VTA2
	25	W-R			TPS VTA1
	26	B-Y			Igniter pin5. IN3.to IGNpin 10
	27	B-R			Igniter pin6. IN2.to IGNpin 2
	28
	29	(G)			Cam Sensor
	30
	31	(B-W)			Crank Sensor
	32	(L)			Cam/Crank (-) joined
	33
	34	W-L			A/C magnetic clutch and lock sensor