TOYOTA SUPRA 1986 Service Repair Manual

122
ILLUMINATION
10A
PANEL
23 151B 2
2
1K 11 1I3
I10 I10 I 4
I10 I10 I10 5 6
1 2
3 1
2 1
1J 11E18 1K 5
IE FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
G±W
G±O
G±O
G±O
G±O G±O G±O G±O W±L
W±G
W±B
G W±B W±B
W±B
W±G
W±G
W±G
W±G
W±G
114 2
25
G± O
W±G W±G W±G 60A
POWER
TA I LL I GHT
RE LA Y
T TRLY
OFF
TAI L
HEA DINTEGRATION
RELAY
LIGHT CONTROL SW
[COMB . SW] C13
SEAT HEATER SW S6
TRAC OFF SW T8
1
I10
IF116 I20I10G±O
3 5
W±G
A/T INDICATOR
ILLUMINATION
[O/D MAIN SW] O5 ELECTRONICALLY CONTROLLED
TRANSMISSION PATTERN
SELECT SW E8
A2 9
AS HTRA Y
ILLUMINATION
I9
G±O G±O

123
*
2 :W/OSTEREOPOWERAMPLIFIER *1 :W/STEREOPOWERAMPLIFIER
I19 I14 I14
I12
I12
2 1
3 2
1 2
8 20
9 2
104
13 12
A A2 1
IH2 5I8
IF3 10
IHIH1 10 G±OG±O G±O G±O G±O
G±O
G±OG±O G±O
W±BG±O W±G
W±B
G±O
G±O
G±O
G±O
G±O
G±O
G±O
G±O
G±O W±G
W±G
W±G
W±G
W±G
W±G
W±G W±GW±B W±BW
G±O G± O
G
3 21 BBB BBB
B W±G
(
*
1)
(
*
2)
A 10
B 5
B
GLOVE BOX LIGHT G3
HAZARD SW H10
CIGARETTE LIGHTER
ILLUMINATION C7
HEATER CONTROL SW H12 RADIO AND PLAYER(
*
2)
RADIO AND PLAYER(
*
1) R6
ODO AND TRIP ILLUMINATION
[TELLTALE LIGHT RH] T6
C10
M ETER ILLUMINATION
[COMB. METER]
J1
JUNCTION CONNECTOR
JUN CTION
CONNECTOR J1
ILL± T
E RHEOSTAT
(
*
2)
(
*
1)
GLOVE BOX
LIGHT SW G4
B R4 ,R5
A
I3:M/T
I14 : A/T
R8
(
*
1) (
*
1)

124
ILLUMINATION
TAILLIGHT RELAY
5±3 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION
C13 LIGHT CONTROL SW [COMB. SW]
2±11 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A2928H1029R 629
C 728H1229R 829
C1028I2029S 629
C1328J 129T 629
E 829O 529T 829
G 329R 4A29
G 429R 5B29
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1I
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL 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)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
IH136
INSTRUMENT PANEL WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL BRACE RH)IH238INSTRUMENT PANEL WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL BRACE RH)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
IH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 338INSTRUMENT PANEL WIREI1038COWL WIRE
I 438COWL WIREI12
I 838INSTRUMENT PANEL WIREI1438INSTRUMENT PANEL WIRE
I 938COWL WIREI19
38INSTRUMENT PANEL WIRE
SERVICE HINTS

125

126
FRONT WIPER AND WASHER
20A
WIPER
1H 51A1
IB27
M 12
IB2 9IB28IB22
IE EB 1J 11K 12
M 8
16
4
7
13
18
2365
1 F9W1 C14
FRONT WIPER MOTORWASHER MOTOR FRONT WIPER AND WASHER SW
[COMB. SW]FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
L±O L
L±W
L±R
GR±GL±O
L
LL
L±WL L±R GR±G
L W±BW±B W B
E9:2JZ±GTE
E21 : 2JZ±GEOFF
MIST
INT
LOW
HIGH
WASHER
L W±B
GR±G
L±R
L±W
±

127
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 18 OF THE WIPER AND WASHER SW, TERMINAL 2 OF
THE WASHER MOTOR AND TERMINAL 6 OF THE FRONT WIPER MOTOR THROUGH THE WIPER FUSE.
1. LOW SPEED POSITION
WITH WIPER SW TURNED TO LOW POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE WIPER AND WASHER SW "
TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND AND CAUSES TO THE WIPER MOTOR TO
RUN AT LOW SPEED.
2. HIGH SPEED POSITION
WITH WIPER SW TURNED TO HIGH POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE WIPER AND WASHER SW "
TERMINAL 13 " TERMINAL 2 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND AND CAUSES TO THE WIPER MOTOR
TO RUN AT HIGH SPEED.
3. INT POSITION
WITH WIPER SW TURNED TO INT POSITION, THE RELAY OPERATES AND THE CURRENT WHICH IS CONNECTED BY RELAY
FUNCTION FLOWS FROM TERMINAL 18 OF THE WIPER AND WASHER SW " TERMINAL 16 " TO GROUND. THIS FLOWS OF
CURRENT OPERATES THE INTERMITTENT CIRCUIT AND THE CURRENT FLOWS FROM TERMINAL 18 OF THE WIPER AND WASHER
SW " TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND AND FUNCTIONS.
THE INTERMITTENT OPERATION IS CONTROLLED BY A CONDENSER'S CHARGED AND DISCHARGED FUNCTION INSTALLED IN
RELAY AND INTERMITTENT TIME IS CONTROLLED BY A TIME CONTROL SW TO CHARGE THE CHARGING TIME OF THE
CONDENSER.
4.MIST POSITION
WITH WIPER SW TURNED TO MIST POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE WIPER AND WASHER SW "
TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND AND CAUSES THE WIPER MOTOR TO
RUN AT LOW SPEED.
5. WASHER CONTINUOUS OPERATION
WITH WASHER SW TURNED TO ON, THE CURRENT FLOWS FROM TERMINAL 2 OF THE WAHSER MOTOR " TERMINAL 1 "
TERMINAL 8 OF THE WIPER AND WASHER SW " TERMINAL 16 " TO GROUND AND CAUSES TO THE WASHER MOTOR TO RUN,
AND WINDOW WASHER IS JET. THIS CAUSES THE CURRENT TO FLOW WASHER CONTINUOUS OPERATION CIRCUIT IN TERMINAL
18 OF THE WIPER AND WASHER SW " TERMINAL 7 " TERMINAL 3 OF THE FRONT WIPER MOTOR " TERMINAL 1 " TO GROUND
AND FUNCTION.
C14 FRONT WIPER AND WASHER SW (COMB. SW)
16±GROUND : ALWAYS CONTINUOUS
18±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
7±GROUND : APPROX. 12 VOLTS WITH WIPER AND WASHER SW AT LOW POSITION
APPROX. 12 VOLTS EVERY APPROX. 1 TO 10 SECONDS INTERMITTENTLY WITH WIPER SW AT INT POSITION
4±GROUND : APPROX. 12 VOLTS WITH IGNITION SW ON UNLESS WIPER MOTOR AT STOP POSITION
13±GROUND : APPROX. 12 VOLTS WITH IGNITION SW ON AND WIPER AND WASHER SW AT HIGH POSITION
F 9 FRONT WIPER MOTOR
5±6 : CLOSED UNLESS WIPER MOTOR AT STOP POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1428F 926 (2JZ±GE)W 127 (2JZ±GE)
F 924 (2JZ±GTE)W 125 (2JZ±GTE)
: 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)
1H
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL 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)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
SYSTEM OUTLINE
SYSTEM OUTLINE

128
FRONT WIPER AND WASHER
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EB32 (2JZ±GTE)FRONT SIDE OF LEFT FENDEREB34 (2JZ±GE)FRONT SIDE OF LEFT FENDER
IE36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 932ENGINE ROOM MAIN WIREE2134ENGINE ROOM MAIN WIRE
X78X
XX
1618 X X 4X
13 X123
6 5 X12 C14 F 9 W 1BLACK BLACK BLACK

129
HORN
13 22
22 2
10 1 1 FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
W L±R L±R L±R
215A
HAZ±HORN
HORN
RELAY
HORN SW
[COMB. SW] C13H8 H9
HORN LH HORN RH 1
IB2 16
I2 L±R
L±B L±B
L±B TO THEFT
DETERRENT
ECUE2:2JZ±GTE
E18 : 2JZ±GEX
1011 C13 H 8 H 9BLACK BLACK BLACK
HORN RELAY
(2) 2±(2) 3 : CLOSED WITH HORN SW ON
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1328H 827 (2JZ±GE)H 927 (2JZ±GE)
H 824 (2JZ±GTE)H 924 (2JZ±GTE)
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 232ENGINE ROOM MAIN WIREI 238COWL WIRE
E1834ENGINE ROOM MAIN WIRE
SERVICE HINTS

130
THEFT DETERRENT AND DOOR LOCK CONTROL
7. 5A
ST
1
50A MAIN
1
60A POWER
1
120A ALT
52 31
13 24 1 2
2
2
1K 11 2 2 2IJ1 2
IB3 8IB2 6
IB2 13
IF2 15
IF2 16 IF210 IJ213 EA13
1 21K 4
IF2 11
1 2P
N5
6
2A
1J 11D10 1K 12 1E18IF2 9IF28
ID1 16 ID1 6 ID1 3 ID1 13
ID1 5 3 12I21
I3
B1
IETAIL HEAD SRLY
KSW IND UL3 L2 LSWD
M
3 14
232
LOCK PLCK 10
L±OR±YG±W
R±Y
L±O
BB±W B L±OB R±Y G±WW±L B
Y
W±L
G
G±Y
L±WB Y W±B
W±B W±B
W±B
W±B
L±RL±W
L±YW
G±Y
L±W
G±BL±W
L±Y
L±R
W±BG±BL±Y G±Y
L±W
W±B W±BG±YB
B
B±W
2 2 2
9
I20 P2
U1
INTEGRATION RELAY
DOOR LOCK MOTOR AND
DOOR UNLOCK DETECTION
SW LHDOOR KEY LOCK AND
UNLOCK SW LH
D15D12
UNLOCK
WARNING
SW
T5
THEFT DETERRENT INDICATOR LIGHT
[TELLTALE LIGHT LH]
PARK/NEUTRAL
POSITION SW
(
NEUTRAL START SW)
THEFT DETERRENT ECU(
A/T) (
M/T)
STARTER
RELAY HE ADLIGHT
RE LA YTA I LL I GHT
RE LA Y
(
*1)
(
*2)
(
A/T)
(
M/T)
(
M/T)
FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
CLUTCH
START SW C9
G±Y
BATTERYUNLOCK
LOCK
I4
B
(
A/T)
32 51
1
B1 2 2
W
B 23 B10 B25
B 20 B12 B6B22 B15 B T7 ,T13
A B

131
*2 : 2JZ±GTE *
1:2JZ±GE
15A
HAZ±HORN
222 2
IB 2 16
IB6 19
IF2 14EA17
I2
IF26
I19 I21
ID1 7ID11IL19IL110 IL17IL12IL18IL112 I21I21
I21
B2 8 21
4 23
3 21 HORN SH
L1 UL1 UL12 LSWP ACT± ACT+ E
3 1
M 2
4
IH IL116 IL1 11
W±BL±RL±Y G±BW G±Y
W±B W±B W±B W±B
G±R R±W
G± R R±W G±Y
L±Y
G±BL±Y
G±B
W±L L±R L±R L±R L±RL±B
WW
W
W±L
W±L L±RW
FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
1
2 312
D16D13 D14 P8
L±R L±R
W±B
W±B W±B W±B
W±BL±Y G±BW G±Y R±WG±R R±W
G±R G±RR±W DOOR LOCK
CONTROL SW LH
[POWER WINDOW
MASTER SW]
DOOR LOCK
CONTROL SW RH
DOOR KEY LOCK AND
UNLOCK SW RH
DOOR LOCK MOTOR AND
DOOR UNLOCK DETECTION
SW RHUNLOCK
LOCK
UNLOCK UNLOCKLOCK
LOCK
THEFT DETERRENT ECU
L±Y G±B
TO HORN SW
[COMB. SW]
(
*2)
(
*1) (
*2)
(
*1) HORN
RELAY
W±L
W±L(
*2)
(
*1) (
*2)
L±R
THEFT DETERRENT
HORN T1
2 1
B2W±BI21
L±R
L±R II1 22
B 24 B11
B 5B8B16 B21 A2A3A4 B T7 ,T13A