TOYOTA SUPRA 1986 Service Repair Manual

235
*
2:2JZ±GE *1 : 2JZ±GTE
10A
ECU±B15A
CIG10A
GAUGE
1E 13 1E21H12
44 52 3144I14 I14
I14
IG1 8IG19IG12IF18IF36II1 8 II123 M
A 18 A3A1B7C20 B18 A11 A14 1E12
II12
IB6 12
EA FROM POWER SOURCESYSTEM(
SEE PAGE 56)
V±WY Y
Y
L±R L±R
L±Y
W±R
L±R
Y
Y
Y
Y R
Y L±R Y BR ±W
G± W
V±W
V
R±Y G±W
V
R±Y G± W
V
R±Y
W± R
L±R
B
P
L±Y L±YP
L±R
W± B
4352 1
65 3 121
W± L B
TP AMH AMC +B ACC RDEFGR SPEED PSW AIR MIX CONTROL
SERVO MOTOR
SPEEDOMETER
[COMB. METER]
A2 5
TELL TALE L IGHT RH T6
VEHICLE SPEED SENSOR
(
SPEED SENSOR)
NO. 1
(
FOR COMBI NATION METER) V10 A/C DUAL PRESSURE SW
OD O AND
TRI P
A/C AMPLIFIERA A12 , A1 3C WARM
COOL
B
REAR WINDOW
DEFOGGER RELAY
IF A 9
A 11 B11A 10
A 4
B 1B 2A 1
(
*1) (
*1)
(
*2)
(
*2)
B A3 ,AB C10 , C12A
B ,A14
BRBR
R

236
RADIATOR FAN AND AUTOMATIC AIR CONDITIONING
A 4 A/C MAGNETIC CLUTCH4 ± GROUND: APPROX. 3.7

A 3(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/CM2) OR 3140 KPA (458 PSI, 32 KG/CM2)
A 3(B) A/C DUAL PRESSURE SW (2JZ±GE)(B) 1±(B) 2 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM2) 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 IGNITION SW AT ON POSITION
HR ± GROUND: APPROX. 10±14 VOLTS WITH IGNITION SW AT ON POSITION AND DO NOT TURN THE BLOWER MOTOR
BELOW 1 VOLTS WITH IGNITION SW AT ON POSITION AND TURN THE BLOWER MOTOR
ACC ± GROUND: APPROX. 10±14 VOLTS WITH IGNITION SW AT ACC OR ON POSITION
TW ± GROUND:10±14 VOLTS AT START THE ENGINE AND MAX. COLD POSITION OF A/C TEMP. CONTROL SW
BELOW 1 VOLTS AT START THE ENGINE AND MAX. WARM POSITION OF A/C TEMP. CONTROL SW
MGC ± GROUND: BELOW 1 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND A/C SW ON POSITION
10±14 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND 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 CONTINUOUS
AMH ± AMC13±19 VOLTS WITH IGNITION SW OFF
AOF ± GROUND: APPROX. 12 VOLTS WITH FACE SW ON
AOD ± GROUND: APPROX. 12 VOLTS WITH DEF SW ON
GND ± GROUND: ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A124 (2JZ±GTE)A1728H12A29A 126 (2JZ±GE)A2428H13B29
A 224A2528I 427
A3A24 (2JZ±GTE)A2628J 129A 3B26 (2JZ±GE)B 328R 125
A424 (2JZ±GTE)B 4A28R 225A 426 (2JZ±GE)B 5B28R 325
A12C28C10A28T 629
A13A28C12B28V1025 (2JZ±GTE)
A14B28E 524V1027 (2JZ±GE)
A1528E1029
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

237
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA32 (2JZ±GTE)FRONT SIDE OF RIGHT FENDEREA34 (2JZ±GE)FRONT SIDE OF RIGHT FENDER
EB32 (2JZ±GTE)FRONT SIDE OF LEFT FENDEREB34 (2JZ±GE)FRONT SIDE OF LEFT FENDER
IF36LEFT KICK PANEL
IG36RIGHT KICK PANELIH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 2E2634ENGINE WIRE
E 332ENGINE ROOM MAIN WIREI1238INSTRUMENT PANEL WIRE
E 532ENGINE ROOM MAIN WIREI1338COWL NO. 3 WIRE
E 9I14
E1132ENGINE WIREI1538INSTRUMENT PANEL WIRE
E2034ENGINE ROOM MAIN WIREI19
38INSTRUMENT PANEL WIRE

238
RADIATOR FAN AND AUTOMATIC AIR CONDITIONING

240
GROUND POINT
FRONT FOG LIGHT AND
PA RKING LIGHT RH
EFI NO. 2 RELAY
EFI MAIN RELAY
HEATER RELAY
FRONT WIPER MOTOR
A/C CONDENSER FAN
MOTOR
BRAKE FLUID LEVEL
WARNING SW
TRACTION PUMP AND
MOTOR
COMBINATION METER
ENGINE OIL
LEVEL SENSOR
NOISE FILTER
IGNITER FRONT FOG LIGHT AND
PARKING LIGHT LH FRONT SIDE MARKER
LIGHT LHDA YTIME
RUNNING
LIGHT RELAY
NO. 3
FRONT SIDE MARKER
LIGHT RH
ENGINE HOOD
COURTESY SW
FRONT TURN SIGNAL
LIGHT LH
FRONT TURN SIGNAL
LIGHT RH
HEADLIGHT LO RH
HEADLIGHT LO LH
ABS RELAY
A /C DUA L PRE SSURE
SW
ABS SOLENOID
RELAY
TRACTION SOLENOID
RELAY
A BS ACTUATOR E2
E5
E8 E8 E2 E2E2 0 2
2
2
5
5
EB EA
HEATED OXYGEN
SENSOR(
SUB)
HEATED OXYGEN
SENSOR(
MAIN)
ED EC II1 24
I17 E16 I 17I11
IJ1 18
(
E1)
(
E01)
(
E02) IC18 W±B
W±B
W±B
W±B W±B
W±B W±BW±B
W±B
W±B
W±B
W±B
W±B
BR
BR
BR
BRBR
BR W±BW±B
(
*4)
W±B
(
*3) W±B
(
*3)W±B
(
*1)
W±B
(
*4)
W±B
W±B
W±B
W±B
W±B
W±B W±BW±B W±B
BR BR
BR
BR
BR
BR
BR BR
BR BRBR
BR
W±B
(
*3)W±B
W±B
(
*3) E7 :*3
E20 : * 4E2:*3
E18 : * 4E2:*3
E18 : * 4
E2:*3
E18 :
*4
E5:*3
E19 : * 4
DAYTIME RUNNING
LIGHT RELAY
NO. 3 RADIATOR FAN MOTOR
E11 : * 3
E24 :
*4W±B
W±B
W±B W±B
W±B
(
*1)E2:*3
E18 : * 4
W±B
(
*3)
(
±S)(
±S)
DATA LINK CONNECTOR 2
(
TDCL)
DATA LINK CONNECTOR 1
(
CHECK CONNECTOR) RADIATOR FAN
RELAY NO. 2 (
E) ENGINE COOLANT TEMP.
SW(
WATER TEMP. SW)
(
±S)
E3
W±B W±B
W± B W± B W±B W±B
W±B
W± B
BR E2:*3
E18 : * 4
(
L)
E8 W±B
(
*1)
(
*3) (
*3)(
*3)
(
*3)
(
*3)(
*3)
(
*3)
(
*3)
(
*3)
ENGINE CONTROL
MODULE
(
ENGI NE AND
ELECTRONICALLY
CONTROLLED
TRANSMI SSION)
W±B

241
*
4:2JZ±GE *
2:USA *
1 : CANA DA*
3:2JZ±GTE
SUB HEATED OXYGEN
SENSOR
(
FOR CALIFORNIA)
VOLUME AIR FLOW
(
AIR FLOW METER)
POWER STEERING
PRESSURE SW
DOOR LOCK MOTOR AND
DOOR UNLOCK
DETECTION SW LH
ROOM LIGHT SW
[DOOR KEY LOCK AND
UNLOCK SW LH]
DOOR KEY LOCK AND
UNLOCK SW LH
REMOTE CONTROL
MIRROR AND MIRROR
HEATER LH
POWER WINDOW MASTER
SW
PERSONAL LIGHT
CENTER AIRBAG
SENSOR ASSEMBLY
POWER MAIN RELAY
INTEGRA TION RELAY
LIGHT CONTROL SW
[COMB. SW]
DIMMER SW
[COMB. SW]
DAYTIME RUNNING
LIGHT RELAY NO. 3HEATED OXYGEN
SENSOR
(
FOR CALIFORNIA
ON FRONT SIDE)
HEATED OXYGEN
SENSOR
(
FOR CALIFORNIA
ON REAR SIDE)
(
E1)
CRUISE CONTROL
ECU
KICK DOWN SW
CRUISE CONTROLH SW
[COMB. SW]
UNLOCK W ARNING SW
KEY INTERLOCK
SOLENOID
WIPER AND WASHER SW
[COMB. SW]
RHEOSTAT
REMOTE CONTROL
MIRROR SW
TELLTALE LIGHT LH
TURN SIGNAL
FLASHER I11 I17 E27
E28
I17
I4
I9
I2
I2
I3
I3
I1 B1 B1 B1 B1IJ118
IC18
ED
1H13
1K12
1E18
1J1
1K6 1D10
1F6
1G3
IG4
1K5E28
E27
4
IE(
E01)
(
E02)
W±B
W±B
IB513
W±B
(
*
1) W±B
(
*
1)(
*
4) BR BR BR BR BR BR
BR
BR
BR
BR BR
BR
BR
BR
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B W±BW±B W±B W±B W±B
W±B W±B W±B W±B
W±B W±B
W±B
W±B
W±BBR BR
BR BR BR W±B W±B W±B
(
E1)
(
E2)
W±B W±B
W±B
W±B W±B DATA LINK CONNECTOR 2
(
TDCL)
DATA LINK CONNECTOR 1
(
CHECK CONNECTOR)
ENGINE CONTROL
MODULE
(
ENGINE AND
ELECTRONICALLY
CONTROLLED
TRANSMISSION)
(
A/T)

242
GROUND POINT
STEREO POWER
AMP LIFIER
COMBINATION METER
TEL LTALE L IGHT RH
FUEL SENDER
RADIO AND PLAYER
BLOWER MOTOR
CONTROL RELAY
SEAT HEATER RELAY
(
FOR PASSENGER' S
SEAT)
SEAT HEATER(
FOR
PASSENGER' S SEAT)
BUCKLE SW RH
DOOR COURTESY SW RH
HIGH BEAM INDICATOR
LIGHT [COMB. METER]
TRAC OFF SW
TRACTION ECU
ABS LATERAL
ACCELERATION
SENSOR
SHIFT LOCK ECU
ELECTRONICALLY
CONTROLLED
TRANSMISSION
PATTERN SELECT SW
O/DMAINSWSEAT HEATER SW
DAYTIME RUNNING
LIGHT RELAY(
MAIN) (
EP)
(
GND)
HEATER CONTROL SW
CIGARETTE LIGHTER
CLOCK
GL OVE B OX L IGHT SW
AUTO ANTENNA
CONTROL RELAY
THEFT DETERRENT ECU
PPS ECU
DOOR LOCK CONTROL
SW RH
DOOR KEY LOCK AND
UNLOCK SW RH
DOOR LOCK MOTOR AND
D OOR UNL OC K
DETECTION SW RH
REMOTE CONTROL
MIRROR AND MIRROR
HEATER RH IG
IH I8
I3
I24 I24 I23
I23
I4 I20
I11
I18
I9
I9I21
I21
B2 B2 I15
B2 IL116 IF311
IE13
BP13
IK11
IF114
I18
I18
I18
I11IF
I14(
E2)
(
VER1)COMBINATION
METER
A/C
AMPLIFIER
W±B
(
*
2)W±B
(
*
1)
W±B
(
*
1)
W±B
(
*
2)
W±B
(
*
3)
W±B
(
*
3)
W±B
(
A/T)W±B
(
*
1)
W±B
(
*
1) W±B
(
*
1)W±B
(
*
1)W±B
(
*
1) W±B
(
*
1)
W±B
(
*
1)
W±B
(
*
3)
W±BW±B W±B
W±BR±L W±B W±B W±B
W±B W±B W±B W±B W±B W±BW±B
W±B W±B W±B
W±B
W±B
W±BW±B W±B W±B W±B
W±B
W±B BRBR BRBR
BR BR BR
BRA
A
A
A
A
A
A A
BR
BR
W±B W±BW±B
W±B W±B
W±B W±B
W±B W±B
W±BW±B
JUNCTION
CONNECTOR J1
I11 :*
3
I4:*
4
I11 :*
3
I18 : * 4 (
*
1)(
*
1) (
*
6)
(
*5) BR
(
GND)
(
GND)
(
GND)ABS ECU
(
*
4)
ABS AND
TRACTION
ECU(*
3) I10
W±BW±B
(
A/T)
(
A/T)A

243
SEAT HEATER RELAY
(
FOR DRIVER' S SEAT)
SEAT HETER
(
FOR DRIVER' S SEAT)
HIGH MOUNTE D S TOP
LIGHT
REA R COMBINATION
LIGHT LH
DOOR COURTESY SW LH
LICENSE PLATE
LIGHT
BUCKLE SW LH
FUEL P UM PREAR SIDE MARKER
LIGHT RH
REAR COMBINATION
LIGHT RH
LUGGAGE COMPARTMENT
KEYUNLOCKSW
REAR SIDE MARKER
LIGHT LH
LIGHT FAILURE
SENSOR
FUEL PUMP ECU B9
B9
B3
B3
B3
B3
I7B6 B5
B6
B5B7 B7
BI BJ BM1 2BQ1 2 BO13
W±B
W±B
W±B
W±B
W±B W±BW±B W±B
W±BW±B W±B W±B W±B
W±B
W±B W±B
(
*
1)
W±B
(
*
1)
W±B
W±B W±B W±B W±B W±B
W±B W±B W±B W±B W±BW±B W±B W±B
W±BW±B
BP12*
1 : CANA DA
*
2:USA
*
6 : W/O STEREO POWER AMPLIFIER *
5 : W/ STEREO POWER AMPLIFIER *
3:2JZ±GTE
*
4:2JZ±GE
POWER SEAT CONTROL
SW(
FOR DRIVER' SEAT)
W±B

244
GROUND POINT
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
J 129
: 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)
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)
1G
1H20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB536ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IC136FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ138ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
IK138COWL NO. 4 WIRE AND COWL WIRE (RIGHT KICK PANEL)
IL138FRONT DOOR RH WIRE AND INSTRUMENT PANEL WIRE
BM140BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BO140BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE
BP140FUEL GAUGE WIRE AND FLOOR NO. 2 WIRE (LUGGAGE ROOM FRONT LH)
BQ142FLOOR NO. 2 WIRE AND SEAT WIRE (UNDER THE FRONT LH SEAT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA32 (2JZ±GTE)FRONT SIDE OF RIGHT FENDEREA34 (2JZ±GE)FRONT SIDE OF RIGHT FENDER
EB32 (2JZ±GTE)FRONT SIDE OF LEFT FENDEREB34 (2JZ±GE)FRONT SIDE OF LEFT FENDER
EC32 (2JZ±GTE)FRONT SIDE OF INTAKE MANIFOLDEC34 (2JZ±GE)FRONT SIDE OF INTAKE MANIFOLD
ED32 (2JZ±GTE)REAR SIDE OF INTAKE MANIFOLDED34 (2JZ±GE)REAR SIDE OF INTAKE MANIFOLD
IE36LEFT KICK PANELIF36LEFT KICK PANEL
IG36RIGHT KICK PANELIH36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER

245
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 2I 9
E 3I1038COWL WIRE
E 532ENGINE ROOM MAIN WIREI11
COWL WIRE
E 7
ENGINE ROOM MAIN WIRE
I1438INSTRUMENT PANEL WIREE 8I1538INSTRUMENT PANEL WIRE
E1132ENGINE WIREI1638CONSOLE BOX WIRE
E1632ENGINE WIREI1738ENGINE WIRE
E18I1838COWL WIRE
E1934ENGINE ROOM MAIN WIREI2038COWL WIRE
E20
ENGINE ROOM MAIN WIRE
I2138INSTRUMENT PANEL WIRE
E24I2338COWL WIREE2734ENGINE WIREI2438COWL WIRE
E28
ENGINE WIRE
B 140FRONT DOOR LH WIRE
I 138COWL WIREB 240FRONT DOOR RH WIRE
I 238COWL WIREB 3
I 338INSTRUMENT PANEL WIREB 540FLOOR NO 2 WIREI 438COWL WIREB 640FLOOR NO. 2 WIRE
I 738FLOOR NO. 2 WIREB 7
I 838INSTRUMENT PANEL WIREB 942SEAT WIRE