1986 TOYOTA SUPRA Service Repair Manual

11 4
STOP LIGHT
15A
STOP10A
GAUGE
1I 10
1C 2
1 2
1C 101H 1
181
B5
B7
B3BM1 1
BO1 6
BIBJBO1 3
BM1 2 FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
IE1 5
W G±W G±W G±W
Y
V V R±W R±W
R±W W±B W±B
W±B
W±B W±B G±W G±W G±W
R±W G±W
W±B
W±BY
55 211
1 4 8 7
2 33
W±B STOP LIGHT SW S11
RE AR LIGHT WA RNING LIGHT
[TELLTALE LIGHT RH] T6
LIGHT FAILURE SENSOR L2
STOP LIGHT LH
[REAR COMB.
LIGHT LH] R9
STOP LIGHT RH
[REAR COMB.
LIGHT RH] R10HIGH MOUNTED
STOP LIGHT H14 +
±
HOLD
CIRCUIT
1E 12
B5 B5W±B
W±BY W±B

11 5
CURRENT IS APPLIED AT ALL TIMES THROUGH THE STOP FUSE TO TERMINAL 2 OF THE STOP LIGHT SW.
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 8 OF THE LIGHT FAILURE SENSOR, AND ALSO
FLOWS THROUGH THE REAR LIGHT WARNING LIGHT TO TERMINAL 4 OF THE LIGHT FAILURE SENSOR.
STOP LIGHT DISCONNECTION WARNING
WHEN THE IGNITION SW IS TURNED ON AND THE BRAKE PEDAL IS PRESSED (STOP LIGHT SW ON), IF THE STOP LIGHT CIRCUIT IS OPEN, THE
CURRENT FLOWING FROM TERMINAL 7 OF THE LIGHT FAILURE SENSOR TO TERMINAL 2 CHANGES, SO THE LIGHT FAILURE SENSOR DETECTS THE
DISCONNECTION AND THE WARNING CIRCUIT OF THE LIGHT FAILURE SENSOR IS ACTIVATED.
AS A RESULT, THE CURRENT FLOWS FROM TERMINAL 4 OF THE LIGHT FAILURE SENSOR " TERMINAL 11 " GROUND AND TURNS THE REAR LIGHT
WARNING LIGHT ON. BY PRESSING THE BRAKE PEDAL, THE CURRENT FLOWING TO TERMINAL 8 OF THE LIGHT FAILURE SENSOR KEEPS THE
WARNING CIRCUIT ON HOLDING AND THE WARNING LIGHT ON UNTIL THE IGNITION SW IS TURNED OFF.
S11 STOP LIGHT SW
2±1 : CLOSED WITH BRAKE PEDAL DEPRESSED
L 2 LIGHT FAILURE SENSOR
2, 7±GROUND : APPROX. 12 VOLTS WITH STOP LIGHT SW ON
4, 8±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
11±GROUND : ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
H1430R 930S1129
L 230R1030T 629
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1C20FLOOR NO. 2 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)1I20COWL 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)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
BM140BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
B0140BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
B 340FLOOR NO 2 WIREB 740FLOOR NO. 2 WIRE
B 540FLOOR NO. 2 WIRE
1 2X 4 2 X
X7 8 X11X
X
3
5X
3
512
1
XXX H14 L 2 R 9 R10 S11
T6BLUE
18
SYSTEM OUTLINE
SERVICE HINTS

11 6
BACK±UP LIGHT
10A
GAUGE
1E 12
II1 23
C 2
II1 36
IE1 12
5 4
5 4
BI BJB 2
A 8
B 1
C 1A 4(
A/T)
(
M/T 2JZ±GTE)
(
M/T 2JZ±GE)
(
A/T)
(
M/T 2JZ±GTE)
(
M/T 2JZ±GE)
W±B
W±BR±B
R±BR±B R±B R±B Y Y
LH
BACK±UP LIGHT
[REAR COMB. LIGHT]
FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
RH B7
R10 R9 BACK±UP LIGHT SW
[PARK/NEUTRAL POSITION SW
(
NEUTRAL START SW)
](
A/T) P2A BACK±UP LIGHT SW(
M/T) C B1 ,B
B5
W±B W±B

11 7
B 1 (B), (C) BACK±UP LIGHT SW (M/T)P 2 (A) BACK±UP LIGHT SW [PARK/NEUTRAL POSITION SW (NEUTRAL START SW)] (A/T)
(B), (C) 2±1, (A) 4±8 : CLOSED WITH SHIFT LEVER IN R POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B1B24 (2JZ±GTE)P2A25 (2JZ±GTE)R 930B 1C26 (2JZ±GE)P 2A27 (2JZ±GE)R1030
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1E20INSTRUMENT PANEL 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)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
B 540FLOOR NO. 2 WIREB 740FLOOR NO. 2 WIRE
1212
X4
8X
4
5X
4
5 BGRAY B1CGRAY B1AGRAY P2R9 R10
SERVICE HINTS

11 8
INTERIOR LIGHT
7. 5A
RA D
NO. 210A
GAUGE7. 5A
DOME
1B 51C11E11 1F81D61H9
1E 91D21D10 1J11F61F21D41K1
4 5
2 1
2 1
IG BI IE FROM POWER SOURCE SYSTEM(
SEE PAGE 56)
R
R
R
R
R
W±G
W±G
G
W±B
R±B
LG
L±B
R R R R R±W
R±W W±B
W±B
W±B
310 2
1 3 1 7 112 2
2INTEGRATION
RELAY
ROOM LIGHT SW
[DOOR KEY LOCK AND
UNLOCK SW LH] D12 DIODE
(
FOR INTERIOR LIGHT) D7 DOOR COURTESY
SW RH D11
DOOR COURTESY
SW LH D10
1
B1 1I 6
IC22 A 3 A 2
IF2 9 IF2 8
ID1 6 IL1 8
3 1
3 1
IL1 16
IH
DOOR UNLOCK
DE TECTION S W RH
[DOOR LOCK MOTOR RH] D16
DOOR UNLOCK
DE TECTION S W LH
[DOOR LOCK MOTOR LH] D15
I4:*1
I11 : EX CEP T * 1
W±B W±B
W±B R±W R±WL±WG±B G±B
L±W L±W G±B W±B W±B
W±B
W±BLG R±B W±B
R±W 4FADE OUT
CONTROL CIRCUIT
I20A ACC IG B
PLCK LOCK DOOR SW E LP

11 9
* 1 : 2JZ±GE M/T EXCEPT CALIFORNIA
2 1
6 7
1B7 IE18 R
R
R
R
R
W±G
W±G
G
W±B
R±B
LG
R
R
R
R
R W±G
W±G
G
W±B
R±B
LG LG
LG 3214 1
8
I18
IGNITION KEY
CYLINDER LIGHT
D12
DOOR KEY CYLINDER LIGHT
[DOOR KEY LOCK AND UNLOCK SW LH]
PERSONAL LIGHT P6
OPEN DDOR
WA RNING LIG HT
[TE LLTALE
LIGHT RH] T6
LUGGAGE
COMPARTMENT
LIGHT
LUGGAGE
CO MP ARTME NT
LIGHT SW L52 1
LGL4

120
INTERIOR LIGHT
INTEGRATION RELAY (J/B NO.1)
1±GROUND : ALWAYS APPROX. 12 VOLTS
4±GROUND : CONTINUOUS WITH RH DOOR OPEN OR LH DOOR OPEN
D10, D11 DOOR COURTESY SW LH, RH
1±2 : CLOSED WITH DOOR OPEN
L 5 LUGGAGE COMPARTMENT LIGHT SW
1±GROUND : CLOSED WITH LUGGAGE COMPARTMENT DOOR OPEN
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
D 728D1530L 430
D1030D1630L 530
D1130I1829P 630
D1230I20A29T 629
: 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)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1D20FRONT DOOR LH WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1F20ROOF WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1I20COWL WIRE AND J/B NO 1 (LEFT KICK LEFT)1J20COWL WIRE AND J/B NO. 1 (LEFT KICK LEFT)
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
ID136FRONT DOOR LH WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
IF236INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IL138FRONT DOOR RH WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
IG36RIGHT KICK PANELIH36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 438COWL WIREB 140FRONT DOOR LH WIRE
I1138COWL WIREB 740FLOOR NO. 2 WIRE
SERVICE HINTS

121