TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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WD/Wiring Diagrams, page 85

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p.086
Wiring Diagrams — MK4 Supra Wiring Diagrams, page 85
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Page text (OCR transcript)
*1 : CALIFORNIA
*2 : EXCEPT CALIFORNIA
*3 : ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

10A
MIR-HTR

10A
PANEL

15A
STOP

4 1R
6 1E
10 I1

L-R
G-O
W

D 8
DIODE
(FOR IDLE-UP)

L-R
3
2

S11
STOP
LIGHT
SW

R-Y
32 II1
R-Y
15 A
ELS

G-W
11 IJ1
G-W
4 A
STP

BR-B
E27
BR-B
E28
BR-B
E28

BR-B
BR-B
BR-B
(A/T)

T2
THROTTLE POSITION
SENSOR
4  3  2  1

TO CRUISE
CONTROL ECU

E 3
ENGINE COOLANT TEMP. SENSOR
(EH WATER TEMP. SENSOR)

A 5
A/T FLUID TEMP. SENSOR

E 1
EGR GAS TEMP. SENSOR

L-R
Y
R

L-Y
O
BR-Y
(A/T)

I17
R

43 B  64 B
VTA1  IDL1

44 B
THW

24 B
OIL

46 B
THG

E 9 B, E10 A
ENGINE CONTROL MODULE
(*3)

48 B
OX1

73 B
HT1

47 B
OX2

72 B
HT2

(SHIELDED)
(SHIELDED)

W
I17
R-L

(*2)
W
W
(*1)

(SHIELDED)

R-L
I17
B-Y

(*2)
R-L
(*1)
B-Y
(*1)

R-L
(SHIELDED)
B-R
B-W
L-R

O 3
OXYGEN SENSOR
(EXCEPT CALIFORNIA
ON FRONT SIDE)

1
2
B-R
W

3
OX

HT
M 2
MAIN HEATED
OXYGEN SENSOR
(FOR CALIFORNIA
ON FRONT SIDE)

+B
4
E

B-R (*1)
BR (*1)

O 4
OXYGEN SENSOR
(EXCEPT CALIFORNIA
ON REAR SIDE)

1
2
B-R

3
OX

HT
M 3
MAIN HEATED
OXYGEN SENSOR
(FOR CALIFORNIA
ON REAR SIDE)

+B
4
E

B-R (*1)
BR (*1)

W

(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)

BR
E27
BR
E28

B-R
E23
B-R
E23
B-R
E26
B-R

BR (*1)
BR (*1)

B-W

L-R

BR

ED

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