1986 TOYOTA SUPRA instrument panel

157
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EB34 (2JZ±GE)FRONT SIDE OF LEFT FENDER
ED34 (2JZ±GE)REAR SIDE OF INTAKE MANIFOLD
IE36LEFT KICK PANELIF36LEFT KICK PANEL
IH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E20I1138COWL WIRE
E2534ENGINE WIREI1438INSTRUMENT PANEL WIRE
E2734ENGINE WIREI1738ENGINE WIRE
E28I2138INSTRUMENT PANEL WIRE
I 838INSTRUMENT PANEL WIRE

163
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A 6A26 (2JZ±GE)A18B28C12B28
A 7B26 (2JZ±GE)A19A28D 126 (2JZ±GE)
A 8A26A2328D 528
A 9B26A3130P 529
A1026 (2JZ±GE)A3230S1129
A1126 (2JZ±GE)C10A28T 529
: 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)
1E20INSTRUMENT PANEL WIRE AND J/B NO.1 (LEFT KICK PANEL)
1H
1I20COWL 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)
EA134 (2JZ±GE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO. 2)
IB536ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)IB636ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)IF236INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ138ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34 (2JZ±GE)FRONT SIDE OF RIGHT FENDER
IG36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E1834ENGINE ROOM MAIN WIREI1438INSTRUMENT PANEL WIRE
I 238COWL WIREI18
I 438COWL WIREI2038COWL WIRE
I 538INSTRUMENT PANEL WIREI22
38COWL WIRE

172
ABS AND TRACTION CONTROL
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
423R/B NO. 4 (LEFT KICK PANEL)
523R/B NO. 5 (ENGINE COMPARTMENT RIGHT)
: 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)
1H
1I20COWL 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)
EA132 (2JZ±GTE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO. 2)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)IB336ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IB536ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)IB636ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)IF236INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ138ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)IJ238ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA32 (2JZ±GTE)FRONT SIDE OF RIGHT FENDER
EB32 (2JZ±GTE)FRONT SIDE OF LEFT FENDER
IE36LEFT KICK PANEL
IG36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 2I 9
E 532ENGINE ROOM MAIN WIREI1038COWL WIRE
E 632ENGINE ROOM MAIN WIREI11
38COWL WIRE
E 8I1438INSTRUMENT PANEL WIRE
E1632ENGINE WIREI18
1 238COWL WIREI2038COWL WIRE
1 438COWL WIREI22
38COWL WIRE

178
CRUISE CONTROL
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C424 (2JZ±GTE)D 126 (2JZ±GE)P 529C 426 (2JZ±GE)D 528S1129
C10A28E2A24 (2JZ±GTE)T2A25 (2JZ±GTE)
C12B28E 2B26 (2JZ±GE)T 2B27 (2JZ±GE)
C1428E 9B29T 229
C1528E10A29V1025 (2JZ±GTE)
C1628P225 (2JZ±GTE)V1027 (2JZ±GE)
D 124 (2JZ±GTE)P 227 (2JZ±GE)
: 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)
1H
1I20COWL WIRE AND J/B NO.1 (LEFT KICK PANEL)
1J
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)
IB636ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)IF236INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ138ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)IJ238ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANELIF36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E1432I 438COWL WIRE
E1632ENGINE WIREI 838INSTRUMENT PANEL WIREE2834
ENGINE WIRE
I1438INSTRUMENT PANEL WIRE
I 238COWL WIREI1738ENGINE WIRE

183
THE PPS (HYDRAULIC REACTION TYPE) CONTROLS THE HYDRAULIC PRESSURE APPLIED TO THE HYDRAULIC REACTION
CHAMBER IN THE GEAR BOX CONTROL UNIT USING THE PPS ECU, TO CHANGE THE STEERING FORCE AND PROVIDE OPTIMUM
STEERING FEELING AT ANY VEHICLE SPEEDS AND UNDER ANY STEERING CONDITIONS.
(PPS OPERATION)
WHEN THE IGNITION SW IS TURNED ON THE STARTING CURRENT FLOWS FROM THE ECU±IG FUSE TO TERMINAL 4 OF THE PPS
ECU. THE PPS ECU MONITORS VEHICLE SPEED, INPUT SIGNAL TO TERMINAL 5 OF THE ECU. WHEN THE VEHICLE SPEED IS LOW,
THE PPS ECU SENDS A HIGHER±CURRENT FROM TERMINAL 1 OF THE ECU " TERMINAL 1 OF THE SOLENOID VALVE " TERMINAL
2 " TERMINAL 2 OF THE ECU " TERMINAL 6 " GROUND, INCREASING THE SOLENOID VALVE OPENING ANGLE TO PROVIDE
COMFORTABLE STEERING OPERATION. WHEN THE VEHICLE SPEED IS HIGH, THE PPS ECU DECREASES THE SOLENOID VALVE
OPENING ANGLE BY REDUCING THE CURRENT TO THE VALVE TO PROVIDE RESPONSIVE STEERING FEELING.
P 1 PPS SOLENOID
1±2 : APPROX. 7.7
(25°C, 77°F)
P 4 PPS ECU
4±GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
6±GROUND : ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C10A28P 127 (2JZ±GE)V1025 (2JZ±GTE)
C12B28P 429V1027 (2JZ±GE)
P 125 (2JZ±GTE)T 629
: 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)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IF36LEFT KICK PANEL
IH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 838INSTRUMENT PANEL WIREI 838INSTRUMENT PANEL WIRE
SYSTEM OUTLINE
SERVICE HINTS

187
C 6 CIGARETTE LIGHTER
2±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION
1±GROUND : ALWAYS CONTINUOUS
C 8 CLOCK
2±GROUND : ALWAYS 12 VOLTS (POWER FOR CLOCK)
5±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION
(POWER FOR INDICATION)
3±GROUND : ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C 628C 828J 129
: 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)
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)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I1538INSTRUMENT PANEL WIRE
X2345C8BLACK
A AAA
AA AA
(
HINT : SEE PAGE 7) J1
1
2 C6
SERVICE HINTS

189
R 7 REMOTE CONTROL MIRROR SW
8±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION
5±2 : CONTINUOUS WITH OPERATION SW AT LEFT OR UP POSITION
8±5 : CONTINUOUS WITH OPERATION SW AT RIGHT OR DOWN POSITION
2±GROUND : ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
R 729R1630R1730
: 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)
1J20COWL 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)
ID136FRONT DOOR LH WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)
IL138FRONT DOOR RH WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 538INSTRUMENT PANEL WIRE
12 3
X5 6 7 8
45 3453 R7 R16 R17
SERVICE HINTS

195
CURRENT ALWAYS FLOWS TO TERMINAL 1 OF THE INTEGRATION RELAY THROUGH DOME FUSE.
1.SEAT BELT WARNING SYSTEM
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 7 OF THE INTEGRATION RELAY.
AT THE SAME TIME, CURRENT FLOWS TO TERMINAL 9 OF THE RELAY FROM THE GAUGE FUSE THROUGH THE SEAT BELT
WARNING LIGHT. THIS CURRENT ACTIVATES THE INTEGRATION RELAY AND CURRENT FLOWING THROUGH THE WARNING LIGHT
FLOWS FROM TERMINAL 9 OF THE RELAY " TERMINAL 10 " GROUND, CAUSING THE WARNING LIGHT TO LIGHT UP. A BUCKLE SW
OFF SIGNAL IS INPUT TO TERMINAL 8 OF THE RELAY, THE CURRENT FLOWING TO TERMINAL 7 OF THE RELAY FLOWS THROUGH
TERMINAL 10 " GROUND AND THE SEAT BELT WARNING BUZZER SOUNDS FOR APPROX. 4±8 SECONDS. HOWEVER, IF THE SEAT
BELT IS PUT ON DURING THIS PERIOD (WHILE THE BUZZER IS SOUNDING), SIGNAL INPUT TO TERMINAL 8 OF RELAY STOPS AND
THE CURRENT FLOW FROM TERMINAL 7 OF THE RELAY " TERMINAL 10 " GROUND IS CUT, CAUSING THE BUZZER TO STOP.
2. UNLOCK WARNING SYSTEM
WITH THE IGNITION KEY INSERTED IN THE KEY CYLINDER (UNLOCK SW ON), THE IGNITION SW STILL OFF AND DRIVER'S DOOR
OPENS (DOOR COURTESY SW ON), WHEN A SIGNAL IS INPUT TO TERMINAL 6 OF THE RELAY, THE INTEGRATION RELAY
OPERATES, CURRENT FLOWS FROM TERMINAL 7 OF THE RELAY " TERMINAL 10 " GROUND AND UNLOCK WARNING BUZZER
SOUNDS.
B 6 BUCKLE SW LH
1±2 : CLOSED WITH DRIVER'S SEAT BELT IN USE
D10 DOOR COURTESY SW LH
3±2 : CLOSED WITH LH DOOR OPEN
U 1 UNLOCK WARNING SW
2±1 : CLOSED WITH IGNITION KEY IN CYLINDER
INTEGRATION RELAY
10±GROUND : ALWAYS CONTINUOUS
6±GROUND : CONTINUOUS WITH DRIVER'S DOOR OPEN
5±GROUND : CONTINUOUS WITH IGNITION KEY IN CYLINDER
8±GROUND : CONTINUOUS WITH DRIVER'S SEAT BELT IN USE
9±GROUND :0 VOLTS WITH IGNITION SW ON AND BUCKLE SW OFF
1±GROUND : ALWAYS APPROX. 12 VOLTS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B 628T 629
D1030U 129
: 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)
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)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
BI40LEFT QUARTER PILLAR
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 738FLOOR NO. 2 WIRE
SYSTEM OUTLINE
SERVICE HINTS