Page 1223 of 1807
I12 I12I13
I13 I13 I13
I19 I14 I12 2 1
2 1
2 1 2 1
2 1 IB6 11 IB63II120
II1 26 IF3 7IF38
IG1 6IG13IG17IG11 IG1 11 IG1 4IG15 2 1
A 2A17 A5A6C22 B10 A7C8C9 A 16BR- W
V- W V- W BR- W
V- W BR- W BR- W
BR- W
L- W L- W L- W L- W
BR- W
Y- G
GR- R L- W BR- W
L- W
V- W
G
L- W
L- W
LG
V- W L- Y
Y- L
WV- W LG- R LG- R
W Y- L L- YLG G- Y G- YG GR - RY- G BR- W
L- W G
L- W
L- W
G- YG- Y L- W
V- W
LG
BR- W
Y- L
W
534 2 1
G
V- W (
*1)
S5 TS TR TA M LOCK- I N TPO TE AOD AOFTW
A /C ROOM
TEMP. SENSOR A16 A/C SOLAR SENSOR A17
A/C AMBIENT
TEMP. SENSOR A 1
A/C LOCK SENSOR
[A/C MAGNETIC CLUTCH] A 4
AIR VENT MODE
CONTROL SE RVO MOTOR A26
A/C EVAPORATOR
TEMP. SENSOR A15
ENGINE COOLANT
TEMP. SENSOR
(
A/C SYSTEM) E11
A/C AMPLI FIERA A12 , A13C
L- W
B , A14
L- W (
*2)
M DEF
FACE
234
RADIATOR FAN AND AUTOMATIC
Page 1225 of 1807
![TOYOTA SUPRA 1997 Service Repair Manual 236
RADIATOR FAN AND AUTOMATIC
A4 A/C MAGNETIC CLUTCH
4-GROUND : APPROX. 3.7 W
A3 (A) A/C DUAL PRESSURE SW [A/C TRIPLE PRESSURE SW] (2JZ-GTE)
(A)1 -(A) 4 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/C TOYOTA SUPRA 1997 Service Repair Manual 236
RADIATOR FAN AND AUTOMATIC
A4 A/C MAGNETIC CLUTCH
4-GROUND : APPROX. 3.7 W
A3 (A) A/C DUAL PRESSURE SW [A/C TRIPLE PRESSURE SW] (2JZ-GTE)
(A)1 -(A) 4 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/C](/manual-img/14/57469/w960_57469-1224.png)
236
RADIATOR FAN AND AUTOMATIC
A4 A/C MAGNETIC CLUTCH
4-GROUND : APPROX. 3.7 W
A3 (A) A/C DUAL PRESSURE SW [A/C TRIPLE PRESSURE SW] (2JZ-GTE)
(A)1 -(A) 4 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM
2) OR 3140 KPA (458 PSI, 32 KG/CM2)
A3 (B) A/C DUAL PRESSURE SW (2JZ-GE)
(B)1- (B)2 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM
2) OR 3140 KPA (458 PSI, 32 KG/CM2)
A12 (C), A13 (A), A14 (B) A/C AMPLIFIER
+B-GROUND : ALWAYS APPROX. 10-14 VOLTS
IG-GROUND : APPROX. 10-14 VOLTS WITH THE IGNITION SW AT ON POSITION
HR-GROUND : APPROX. 10-14 VOLTS WITH THE IGNITION SW AT ON POSITION AND DO NOT TURN THE BLOWER
MOTOR BELOW 1 VOLT WITH THE IGNITION SW AT ON POSITION AND TURN THE BLOWER MOTOR
ACC-GROUND : APPROX. 10-14 VOLTS WITH THE IGNITION SW AT ACC OR ON POSITION
TW-GROUND :10-14 VOLTS AT START THE ENGINE AND MAX. COLD POSITION OF THE A/C TEMP. CONTROL SW
BELOW 1 VOLT AT START THE ENGINE AND MAX. WARM POSITION OF THE A/C TEMP. CONTROL SW
MGC-GROUND :BELOW 1 VOLT AT START THE ENGINE, PUSH THE A/C AUTO SW AND THE A/C SW ON POSITION
10-14 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND THE A/C SW OFF POSITION
BLW-GROUND :1.0-3.0 VOLTS WITH THE IGNITION SW ON AND TURN THE BLOWER MOTOR
S5-GROUND :4-6 VOLTS WITH THE IGNITION SW ON
SG-GROUND : ALWAYS CONTINUITY
AMH-AMC :13-19 VOLTS WITH THE IGNITION SW OFF
AOF-GROUND : APPROX. 12 VOLTS WITH THE FACE SW ON
AOD-GROUND : APPROX. 12 VOLTS WITH THE DEF SW ON
GND-GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A124 (2JZ-GTE)A1728H12A29A126 (2JZ-GE)A2428H13B29
A224A2528I427
A3A24 (2JZ-GTE)A2628J129A3B26 (2JZ-GE)B328R125
A424 (2JZ-GTE)B4A28R225A426 (2JZ-GE)B5B28R325
A12C28C10A28R2025
A13A28C12B28T629
A14B28E524V1025 (2JZ-GTE)
A1528E1029V1027 (2JZ-GE)
A1628E1129
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
423R/B NO. 4 (LEFT KICK PANEL)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1(LEFT KICK PANEL)
1H20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1K20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EA132 (2JZ-GTE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO 2)EA134 (2JZ-GE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO. 2)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IB436ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)IB636ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
IG138INSTRUMENT PANEL WIRE AND COWL NO. 3 WIRE (BEHIND HEATER CONTROL SW)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IK138COWL NO. 4 WIRE AND COWL WIRE (RIGHT KICK PANEL)
SERVICE HINTS
Page 1232 of 1807

1
234
1 SUPRA ELECTRICAL WIRING DIAGRAM
2ACC
IG1
ST2IG2 AM1 4
8 6 7AM2
222
221J 6 1J 4
2 1
5 3
21K 4
2A22 1
2IJ1IJ2131J 31J5
1E 81E12
34 II1 23 II1
2EA3EA 2 4
1B
B
A
A
A L
IG
S IJ29 3EA1
4IB1 2
1
B
1
A I19
IGNI TION SW
5 0A AM1
( USA)
6 0A AM1
(
Can ada)
50A
MAI NSTARTER
RE LAY
7. 5A
ALT- S120 A
AL T30A
AM2
BA TTERY[STARTE RTo Thef t Deterren t an d
Doo r Lock Con trol EC U
<14- 3>
T o E ng i ne Co nt r o l
Mo dule < 3- 7> < 4 - 8> To B ulb Chec k Rela y
[Comb. Meter] < 26- 6> C 9
CLUT CH
START SW
(M/ T)7. 5 A
ST
P
NP 2
PA RK/NE UTRAL
POSITION SW
(A/T)7. 5A
IGN10 A
GAUGE
T 6
CHA RGE WARNIN G LIG HT
[TELLTALE LIGHT RH]
(
*1)
(
*2)
1
2
3
G 1 B , G 2 A
GENE RATOR
1
123 B G 1 AG 2 B LACK GEN ERAT OR S 2 A , S 3 B
1
1 STARTER
A S 2 BS 3 BL ACK
W
W
W WW- R W- RBB BB-WB-WBB B
B L- O
B B L- OB
B B- O Y - GY W
B- Y
B- W
W W
W W Y- GY W
Y- G B- W B- WBB-W
B
B
(
A/T)
(
M/T) (
M/T) (
M/T) (
M/T)
(
A/T) (
A/T)(
A/ T) (
A/T)
(
M/T)3
6
22 22
11 111
212
5 B- Y
B- R B- W
B- R
11EA3EA2 1(
*1)
(
*2)
B
* 2 : 2JZ- GE * 1 : 2JZ- GTE
To Daytime Runni ng
Li g h t Re l a y(
Main)
<6- 1>
B(
A/T)Y- GFrom Combination
Meter< 2 6- 5>
Y- G W
W
Charging Starting P ower Source
1B 4
W* 3 : Canada
(
*3)
12 I B2
B- W
K
Page 1241 of 1807

1
234
5 SUPRA
222IB213
4 3
2 1OF F
TAIL
HEAD
LOW
HI GH
FL A S H
OF F
ONH EL T E D HF HL FG H U E F
LIGHT
CON TROL
SWFOG
LIGHT
SW DIMMER
SWTo Thef t Deterrent
and Door Lock
Co ntrol ECU< 1 4- 3>
To Integr at ion
Relay < 1 1- 1>
G- RR R R- Y R- Y R- Y
R- YR R G- R
R- Y
R- Y
R- Y
BR
2214 3 7
2A
1J 11K 5
IER R W- BW- BO R- L
B
1113 11 9 6 122 1
5 3
1 2
1 2
1 2
1 2 2IB1222
22
22 22
6IF1
14 IF1 7 IB1
IB2151 2
1 2
EAEB
R- L R- L G- W G- W
R- L
W- B
R- L
R- L W- B G- W2
R- W R- B R- B
R- W R- WR- B R- B R- B G- R
R
2
3RR- W R- W R- W R- W(Can ada)1 2
HEADLIGHT
RE LA Y
50A MAIN
15A FOG C12
HIGH BEAM
INDI CATOR L IGHT
[COMB. METER] H 2
HE ADLIGH T HI RH H 4
HEA DLIGHT L O R HH 3
HEADLIGHT LO LHH 1
HEAD LI GHT HI L H
O
O
W- B
W- B F 4
FRONT FOG LIGHT RH F 3
FRONT FOG LIGHT LH
(
USA)
(
Canada)15A
HEA D(
LH)
(
USA)15A
HE AD
(
LH- LWR)
(
Canada) (
Canada)
(
USA)
FOG LI GH T
RELA Y
W- B
W- B
Fro m I ntegrat ion
Relay< 11- 2>
C1 3
COMBINATION SW
BA TTERY
To Fo g Lig ht
S W[ C omb. SW] < 6 - 3FOG LI GH T
RELA Y FOG LI GH T
RELA Y
O
O 15 A
HEA D(
RH)
(
US A)
W- B
R- L
1
Left kick pa ne lFr ont side of
ri gh t fenderFr ont side of
left fender (
USA) 22
11Power Source
Headlight(
USA)
Fog Light
W- B
W- B
K OVERALL ELECTRICAL WIRING DIAGRAM
Page 1242 of 1807

1
234
6 SUPRA
2 1
4 334
12
1H 91J41J 522
1B 51B41H 122222
13 IB2
10 IB2
222ACC
IG1 AM1 4
22 2 22
1 2
1 2
IG2222
1 2
1 2
2IB1
6IF1
14 IF1 13 IB5
EA EB IE 5
1K1
1J 2B 1
22
2 2215175
12 14 322 2 22
7
2
311 1 1 1
6 9 11 13 1 111 1 8 8 13 16C HG OIL PKB E HI
G- WR- Y R- W R
W
R- Y R- YR- WRR
R
R- W
R- Y
R- L
R- W
W- B
W- B W- B
W- B W- B W - B
W- BW- B
W- B
W- B W- B
W- B
R-W R-W R-W R-L
W- B
W- B
W- B W- B W- B
W- B
W- B
R
R- Y R- W
RR- L
R- L
R
R- B R R- W
R- WR- WR- Y R- B
W
R R WR R- L
Y R- L R- Y
11
WR- Y R- Y
10 A GA UGE
R
O HU HF T H EL HL E D FG EF
OFF
TAIL
HEAD
LOW
HIGH
FLAS H
OFF
ON
LIGHT
CONTRO L
SWDIMM ER S WFOG
LIGHT
SW
12 0A ALT 6 0A AM1
7. 5 A DOME
50A MAINB ATTERY F rom Gene rator
<1-4> T o Brake Fluid Lev el
Warn ing SW< 26- 6> To Parking Brake SW
< 26- 7>
I19
IGNI TION SW
IG +B DRL H
D 6
DA YTIME R UNN ING LIGHT REL AY(
MA IN)DIMMER R EL AY
(
DAYTI ME R UNNING
LIGHT RELAY NO. 2)
(
Canada)HEAD LIGH T
RELAY
BR- W
B- W
Y- G
2A
W- BW- B
From Integration
Relay<11- 2> C13
COMBINATION SWFrom
F og Li ght
Relay< 5- 3>DA YTI ME RU NNING
LIGHT RELA Y NO. 3
15A HEAD(
LH- UPR)
15A HEAD(
RH - UPR)
7. 5 A DRLH 1
HE ADL IGHT H I LH H 2
HEA DLIGHT HI RH 15A HE AD(
RH- L WR) 15 A HEA D(
LH- LWR)
H 4
HEADLIGHT LO RHH 3
HE AD LIGHT LO L H
C1 2
HIGH B EAM IND ICATOR
LIGHT[COMB. METER]
To Integration
Relay< 11- 1>
To The ft
Deter ren t
an d Door
Lock Con tr ol
ECU< 14- 3>
B B- Y
BR2
1
Right kic k pa ne lFront sid e of
lef t fenderFront side of
right fend er 2B 4B 1A 5A 1B 3B 2A
3
A D 2 A , D 3 B
7IF2
Y- G
DAY TIME RUN NING L IGHT
RELA Y NO. 3
1
4
5 2
3
612
34 A D 2 G RAY BD 3 GR AY 2
2
W W- B
W- B
Power SourceHeadlight(
Canada)
K
Page 1245 of 1807

1
234
9 SUPRA
2AC C
IG1 AM1 4
221J 5
1J 4
12 IF1 17 IF11E 14 1E19 1 A4 4IF1 3IB1
7
1H
11
1H3
1C
7
1A
1C 4
IE4 44 2A
BI BJ EB1 22
22
16 IB2
10
2 1
EA IH15 B 6 A
7A 1B 41E 7 I19
IGNITION SW
H10
HAZ ARD
SW50A AM1(
US A)
60A AM1(
Cana da)
120 A A LT
15A
HA Z- H ORN
7. 5A
TU RN
B1 F TB TR B2 TL
OFF
ON
BAT TERY
Lef t kic k
panelRigh t kic k
pan el Front side
of left
fender Lower
back
panel
cent er Le ft quarter
pi lla r
R 9
REA R TURN SIGNAL
LI GHT LH
[REAR COMB. LI GHT LH] R1 0
RE AR TUR N SIGNA L
LIGHT RH
[ REAR CO MB . L IGH T R H]F 7
FRONT TURN SIGNAL
LIGHT L H F 8
FRONT TURN SIGNAL
LIGHT RH TURN SIGN AL
I NDICATOR L IGHT
[COMB. METER]
J 1
JUNC TION
CO NNE CTORH 8
HORN LHH 9
HOR N RHC13
HOR N S W
[COMB . SW]To Theft Deterr ent
an d Door Lock Control
ECU< 14- 4>
C1 0 A , C1 2 B
HORN
REL AYL- R
L- BL- R L - R
W- B W- B L- B L- B
L- B
G- Y
G- B
W- B W- B W- BW- B W- B
W- B W- B
G- B G- Y G- B G- Y
W- RR- B R- B G- Y G- B G- B
G- Y
B G- RW
W W
W W WL- R G- Y
G- B G- B
G- Y
G- Y
W- B
W- B R- B W- R
R- B WW
B- Y
A 6 6 10 8
5 8 1
RH
LHTB TR TL
21 2
2 22
31
55 5 6 9 7
1
1 1
3
A11 BL
E
W- B
13 9 8 7 6 5 4 3 2 1 10111216 11 10 9 8 5 4 3 2 1 12131467 15 A C10 BL UE BC1 2 TURN SIGNA L INDICA TOR LI GHT
[COMB. METER]
TUR N
SI GNAL
FLA SHERC13
TURN SI GNAL SW
[COMB. SW]
LH RH
Fron t side o f
r igh t fe nder 12 2
WP ower Source Turn Signal and Hazard W arning Light Horn
W
K OVERALL ELECTRICAL WIRING DIAGRAM
Page 1246 of 1807

1
234
10 SUPRA
2AC C
IG1 AM13
4
1J 4
221E11J 5
1J 8
1B 51C11F81H9
1I 16 1C 12 1I61E91I15 1 K12 1J1
BI IGIE 31 15 IC2 2 IC2
1 2 3
11 2
1K 1
1F 61F10
1 1
32 1E 12
1B 4
8 14
71112
864 5 10
2 2
2 2
1 11
B R WB- WR- B R- W R- W R- W
R- B R- W R- WY W- B W- B W- BG
R- B
LG W- B W- B
G R- BLG
R R
R- B
W- B
G
B- Y
YY-R 10 A GA UGE
7. 5 A
RAD
NO. 2
R R R R W- G
W
L 5
LUGGAGE
C OMPAR TMENT
LI GHT SWL 4
L UGGAGE
COMPARTMENT
LIGHT P 6
PER SON AL LIGHT
LH RH
I1 8
IG NI TIO N KE Y
CYL IND ER L IGHT
INTEGRATION RELAY
T 6
TELLT ALE L IGHT RHD10
DOOR CO URTE SY
SW LH D11
DOOR CO URTE SY
SW R H D 7
DIODE
(
I nter ior Ligh t) U 1
UNLOCK
WAR NING SW
W- B W- B
BA TTERY7. 5A DOME1 20A ALT 50 A AM1(
USA)
60 A AM1(
Canada)
Left quarter
pillarRight kick
panelLe ft kick
pan el 2A
12SEA T BELT
1E 11 I19
IGNITION SWDO ORFr om Theft
Deterr ent and
Door Loc k
Control ECU
< 14- 2>
R
R- B
Fr om Theft
Det errent and
Door Lock Control
ECU< 14- 3>
LG
R- B
1
16
2 1
R- B
9
2 2
WPower
SourceU nlock and
S e a t B e lt W ar n in gInterior Light
2 1 3
Fr om Thef t Deterrent
and Do or Lock
Contr ol ECU< 14- 2>R- L
To Bu ckle SW
LH< 21- 4> F rom T heft De terrent
and Do or Loc k
C on trol ECU< 14 - 3> Y
Y
IE18
LG LG
LG LG
K
Page 1247 of 1807
1
234
11 SUPRA
2ACC
IG1 AM13
4
1J 4
1B 51J 5
2
2 1B 4
1I 16
2A3A 2A 4A 1A1J 8
1E 181E 10
1J 1
MM M M 12 ID1 11 ID1 10 ID1 15 IL1 6 IL1 14 IL1
IEB E M LH MLV M+ MR V MRH CO NTROL
SW SELECT
SW
RH
LHUP
DOWN
RIGHT
LE F T
UP
DOWN
RIGHT
LE F T8
216537
534 435R 7
RE MO TE C ONTROL MIRR OR SW
M H MV M+ M+ MV M H
R17
REMOTE CONTR OL
MIRRO R RH R16
REMO TE CO NTROL
MIRR OR LH
Left k ick panel 17
6
50 A AM1(
US A)
60 A AM1(
Cana da)
1 2 0 A AL T 7. 5A DOME
BA TTERY
I19
IGNITION SW
See Unlock and Seat Be lt
Wa rni ng Sy stem< 1 0- 1>
See Taillight Sys tem
<7- 1> To L igh t Contr ol SW
[ Comb. SW]< 5- 1> < 6 - 2>
WWR R
B R- Y RW- B LG LG- B LG- R
LG LG- BLG- R BR- B
BR- Y
LG- R LG- RBR- B
BR- Y
GR
GG
LG- R W- B 10 A
GAUGE
I NTEGRA TIO N RE LA Y
17. 5A
RAD
NO. 2 B- Y
See Taillight Syst em
<7- 1>
2 2W11 1
22 2
Power
SourceLight Auto Turn O ff Remote Control M irror
From Hea dl ight Re lay
<5- 2><6- 2>
I20 A1234 I20 A INTE GRATI ON REL AY
K OVERALL ELECTRICAL WIRING DIAGRAM