engine coolant TOYOTA SUPRA 1986 Service Repair Manual

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

5
678
3 SUPRA(
Cont' d)
2 1
2 1
2 1
2 1
2 1
B B B BAAAB B B B BAABA BBBBB
B BAAABBBBBBB A BBBB AABBBBBBBB A B12
12
12
4IJ214 IJ2 5 IJ2A
10 I C19IC1 12IC1
IC14
IC18
20 IJ 1
2 1
2 1AABBBBBA BB B
B A BBBBBBAAA ABBB
121212
1
1
ED Rear side of
intak e
ma n i f o l d 52 47 72 6212257565554535258 31 35333432 12347574151617181920 11 50 492 1
42
48 71 77 29 19 20 172 40 39 38 73 60 1247633 4424466342 31
23 26 625 527 7272614 38698079342 5 3 2 1 2 3 4 31
4
1
A
A
A 3 1 6 415 16 62 41 43 64 65 4 45 66 28 BRLG P± GY± L GR±R B±R B± OGR(
A/T) B± YW
B±R B±R B±R B±R B±R
BR±B BR±B
WB±L B±RB LG P±GY±L GR ±R(
A/T)P
G±BG± Y G±R W±L B±R
B± R B± R
B± R B± R L± WB±OGR B±W(
A/T) B±Y BR±B BR±BL±Y O(
A/ T) BR±Y GR±RY±L
GR ± R
R±L R±LBR±W BR±WL±BG V±W R±WB±O GR ±B GR ±GP±B L±O
R± Y B±R V±Y G±O G± WR± G BR±BL±RP
V R±BR R± WR±GR±YR±L Y±RW W
B± R
OX2 HT2 W DI FPCIGT1
IGT2IGT3
IGT4IGT5
IGT6IGF
+BISC1
ISC3ISC2
ISC4 OD1A/C
EGREVAP
#60 #50 #40 #30 #20 #10 ABS KNK1 KNK2BR± B
B±R B±R
W(
A/ T)
V7
VSV(
for Intake
Air Cont rol Valve) V4
VSV(
for Ex haust
Bypass Valve)
V5
VSV(
f or Exhaust Gas
Control Valve) V6
VSV
(
for Fuel Pres sur e Up)
A5
A/ T FLUI D
TEMP. SENSOR E1
EGR GAS TEMP. SENSOR
E3
ENGINE COOLANT
TEMP. SENSOR
(
EFI WATER
TEMP. SENSOR)
V8
VSV(
for Waste
Gat e Valve)From Cruise Control ECU< 17±3> From A/C Amplifier< 26±5> Fr om ABS and
Tr act io n ECU
< 19±8>
From
Telltale
Light RH
< 25±1>
From Park/Neutral
Pos i t i on SW
(
Neutral Start SW)
(
A/ T)
<1±3>
From Clutch Start
SW(
M/T)
<1±3>
OX H T
(
SHI ELDED)
(
SHIELDED)
H5
HEAT ED OXYGEN SENSOR
(
MAIN)E+B
OX1 HT1 STA VF1 TE2 TE1 TTSP1 VSV1 VSV2 VSV3 FPU
PMCIGSW
M± R ELNSW
BATTTHW OIL THG
IDL2VTA2 (
SHI ELDED)
(
SHIELDED)
(
SHIELDED) R±L R±Y R±G R± WR R±B B±R V±WG L±B R±LBRBR
BR B±R B±R 1
32
4R± L BR± WB±RV B±RW
(
SHIELDED) V2
VSV(
for EGR)
V3
VSV(
for EVAP)
HT
OX+B
E1 H11
HEATED OXYGEN SENSOR
(
SUB)
I1
I D LE AI R C ON TR OL
VALVE(
ISC VALVE)
Fr om Ignit er
<2±2>
L±R
L±R
BR±B BR±B
BR±B B±RP± L Y±RBR
G±W
BR± B
R
Y
L±R
B±Y
B±W
R±Y R
W± GWO B± WL B±RBRB WO P±LBR BR
BR
BR±BR GR ±RL±R L±RBR±B BR±B
BR(
SHI ELDED)
(
SHI ELDED)
ACMG G1G1±G2G2±NENE ±
EFI+EFI±
TRC+TRC±
E1 EO1 EO2 THA E2 VG E2 PI M VC
EL S
TACOPM1
VCCVT A1
IDL1E2 STP THA VG E2 1 E2
B
From A/C
Magnet ic
Clutch
Relay
< 26±2> To Trac tion ECU
< 19±6>T o Cr ui s e Co nt r ol
ECU< 17±3>
To Tr act ion ECU
< 19±6>
T14
T URBO P RE SS URE
SENSOR
S5
SUB THROTTL E
POSITI ON
SENSORT2
THROTTL E
POSI TI ON
SENSORM1
MASS AI R
FLOW(
AI R
FLOW METER)
Fr om
St op Light
SW< 7±4> To Combination
Meter< 25±6>
To A/ C
Amplifier< 26±5>
From
Diode(
for
Idle±Up)
< 20±2>
A
A
AAA
A
A
BR
(
SHI EL DED)(
SHI ELDED) (
SHI ELDED)
O L B±R
B±W
WC3
CRANKSHAFT
POSITI ON SENSOR
C2
CA MSHAF T
POSITI ON
SENSOR NO. 2 J2
JUNCTION
CONNECTOR
K2
KNOCK SENSOR
(
on Rear Side)
K1
KNOCK SENSOR
(
on Fr ont Side)C1
CA MSHAF T POS I TI ON
SENSOR NO. 1BR
BRFrom Tr act ion
ECU< 19±6>
B±R
ENGINE CONTROL MODULE(
*1) E9 B ,E10 A
A
13
W± RNE O
OLBR
O B± W
B± R B± R
*1 : Engine and Electrolnically
Contr olled Tr ans mis sion ECU
(
A/T)
(
A/ T)
Engine Control(
for 2JZ±GTE)

5
678
4SUPRA(
C ont' d)
1 2
2 1
1 2
2 1
BAABAAA B A A A BBBB B B B B BB A A A B B B BBB B B B
77B
23A
34A
12A
79B
80B
69B
7B
27B
25B
26B
49B
50B
47B
72B
48B
73B
20B
19B
18B
17B
16B
15B
22A
21A
6A
30A1J 6
1K 4
13 IJ213 I I1
112 1
1 2
2 1
11 B±R
B± O
BR±W(
*1)
B±W
GR
B± Y
GR±R(
A/ T)
LG
P± G
Y± LB±R B±R B±R B±R
B±R B±R
L±B
W
R±L
G
V±W
R±B
R
R± W
R±G
R±Y
R±LW
BRR± L
BR (
SHI ELDED)(
SHI ELDED)BR±B BR±B BR±B
BR±B
R
BR
BR
BR BRBR
BR
BR B
W±G
L±R
BR±B
BR
BR
BR
G
B
W
R
W
W
R±L
R± L(
*1)
B±Y(
*1)
B±R
BR(
*1) (
SHI ELDED) (
SHI ELDED)
(
SHI ELDED) (
SHI ELDED)
(
SHIELDED) (
SHIELDED) (
SHIELDED) (
SHIELDED) (
SHIELDED)
(
SHI ELDED) (
SHI ELDED)
W
B± L(
*1)
B± R
R± L
R± Y
R± G
R±W
R
R± B
V± W
G
L±B
R± LBR R± L
(
SHIELDED) (
SHIELDED)
B± R(
*1) L±OY±L P±GLG GR ±R(
A/T) B±YGR B± W BR±WB± O B±RG±WR±GV± Y G±OG±YV P W±L R±WR± YP R± Y G± W
B±O B±R B±R B±RB±R B±R B±R B±R
B±R
B±WL±Y BR±Y O L±RY R BR±BP±L LG±BBR
BR± B
BR±B
BR±B
BR±B
7. 5A
ST
V1
VSV(
for ACIS) V3
VSV(
for EVAP) V2
VSV(
for EGR) V6
VSV(
for Fuel
Pr ess ur e Up)
I1
I DLE AIR CONTROL VALVE
(
I SC VALVE)
M2
MAI N HEAT ED OXYGEN
SENSOR(
for Califor nia,
on Fr ont Side)M3
MAI N HEATED OXYGEN
SENSOR(
for California,
on Rear Side)
J2
JUNCTION CONNECTOR
O3
OXYGEN SENSOR
(
Except Califor nia,
on Front Side) O4
OXYGEN SENSOR
(
Except Califor nia,
on Rear Side)
E+B HT OX +B HT OX
E
From Cr uise Contr ol ECU
< 17±3> From A/C Amplif ier
< 26±5> From A/C Magnet ic
Clutch Relay< 26±2> Fr om Par k/Neutral Posit ion SW
(
Neut ral Start SW)(
A/T)
< 1±3> ,
Fr om Clutc h Star t SW(
M/T)
< 1±3>
From Distributor
<2±4>
K2
KNOCK SENSOR
(
on Rear Side)
K1
KNOCK SENSOR
(
on Front Side)
KS THA E2 IDL1
VT A1 VCC OI L THG THW STP EL S SP1 IGF IGT FPU
KNK1 KNK2 G1 G2 NE G± E1 E01 E02 OD1 A/C ACMG STA VF2
TE1TE2
VF1TT
BATTM± R EL
NSWHT 3 I GSW +B I S C2
ISC4ISC1
ISC3ACI S EVAP EGR
OX 3 W DI FPC # 6 0#50
#40#30
#20#10
HT 1 OX1 HT2 OX 2ENGI NE CONT ROL MODULE(
Engine and Elec tronically Controlled Transmiss ion ECU)T2
THROTTL E POSITION
SENSORV12
VOLUME AIR
FL OW(
AIR
FL OW METER)
E3
ENGINE COOLANT TEMP. SENSOR
(
EFI WATER TEMP. SENSOR) E1
EGR GAS TEMP. SENSORA5
A/ T FL UI D
TEMP. SENSOR T o Cr ui se Co nt r ol
ECU< 17±3>
R
Y
L±R
From Igniter
<2±4> From Telltale
Light RH< 25±1> From Diode
(
for Idle±Up)
< 20±3> From Stop Light SW
<7±4>
1346432
243 5 1
A A A A A A A
A4213 3 1 2
4251
AWW
B
(
A/T)(
A/ T) L±R
(
SHI ELDED)
(
SHI ELDED)
W
ED
R±L
E9 B ,E10 A
Rear s ide of
intake manifold
R± L L±O28 20 19 29 33 24 76 36 1 31 34 32 35 33 39 74 75 361757 58 2 15 4 44 46 24 41 43 64 65 45 66
(
*1)(
*1)
(
*1)
(
*2)
(
*1) (
*1) (
*2) (
*1) (
*1)
(
*1)
(
*1)
(
*1)(
*1)
(
A/ T)
*2 : Except Califor nia *1 : California
(
A/T)(
A/ T)
Engine Control(
for 2JZ± GE)
(
*1)(
*1)

5
678
25 SUPRA(
Cont' d)
11B 4B 14A 9B 13A 16A 6A 2A 3A 15A 6B 1C 4C 10C 6C 7C 8C 11C 12B 13B
3C 13 C 7B 12 C 2C 7A 1A 10B1B2B 5B 8A 9A 8B 10A 11A13 IF2
33 II1 24 II1 19 II1
5BP1 3BP1 1BP1
2 1
IF1
EB I H 14 IB2 1 IE1 2 IE1 3 IE115 IF1 29 II 1
ECSee Electronically Controlled
Transmiss ion and A/T I ndicator
System< 15±6> < 16±6>
See Illumination
System< 8±4>
See Tur n Signal
and Hazard Warning
Light Sy stem< 9±3>
See Headlight
System< 5±3> < 6±4>
See Cruise Control
Sys tem< 17±2>To Rheostat< 8±4>
See Electr onic ally Contr olled
Tr ans miss ion and A/T I ndic ator
System< 15±6> < 16±6>
See ABS and Traction
Control System< 19±4>
L
2
D
N
R
P
MA NU
O/D OFF
TURN RH
TURN LH
HIGH BEAM
TRAC
CRUI SE
BRAKE
SPEEDFUEL FUEL TACHO MASTER
From Engine Contr ol Module
(
Engine and Electronically
Controlled Transmission ECU)
<3±7>To Igniter< 2±4>
From Park/Neutral Position
SW(
Neutr al St art SW)(
A/T)
<1±3>
From Clutch Start SW(
M/T)
<1±3>
DELAYBULB
CHECK
RELAY
E7
ENGINE OIL
LEVEL SENSOR
E4
ENGINE COOLANT
TEMP. SENSOR
(
WATER TEMP. SENSOR) F1 4
FUEL SENDERFrom Daytime Running
Light Relay(
Main)
<6±1>
Fr om Day time Running
Light Relay(
Main)
<6±2>
P5
PARKING BRAKE
SWJ1
JUNCTION
CONNE CTOR
B2
BRAKE FLUID LEVEL
WARNING SW
BR±WW± B
BR±W
B B±W
B±W(
*2)
B± WW± B W± B
W± B R±W(
*1)
BR±W(
*2)
R± W
BR±W
B±W
BR BR
G BR Y± L Y± GY± BBR BR
Y±B
Y±G Y±GY±BBR
Y±L
GBRBR
R±GR±Y
L±R L±W Y±GY
B± W(
*1) Y
Y± G
L±W
L±R
R
R±G
R±YB± W(
Canada)
B± W(
Canada)
BR±W BR±WB±W(
Canada)
BR±W
BR±WDIODE
(
*2) (
USA
*1) (
US A)
(
Canada)
(
Canada)(
US A) (
USA)(
*1)
112
ILLUMINATION
*1: 2JZ±GTE
*2: 2JZ±GE
WA TE R
TEMP.
A A 123 COMBI NAT I ON MET ER C10 B , C11 C , C12 A
Fro nt s id e of
intake manifoldLeft kick panelRight kick panel Fr ont side of
left fenderG± O
Fr om ABS ECU< 18±2>
Fr om ABS and
Tr act ion ECU< 19±7>
From Tr act ion ECU
< 19±8>
BR± W
BR±WBR±W
Fr om ABS and
Tr act ion ECU
< 19±8>
R± WR± W
(
*1)(
*1) Y±G
To Generat or
(
Al t e rna t or)
< 1±4>
A
1
2 4 4
Combination M eter

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
26 SUPRA(
Cont. next pa ge)
7ACC
IG1
ST1 AM15
4
6 1
5 2
3
2 1
3 5
4
2 1
5 33 4
1 2
1 2
M
1 2
M
2 3
1 2 1E 13 1J4
22 2222 22 1B 21B4
222 221A 51K2 1J 5
10 IF1
1IB4
3IB2
3IK12EA1
5IF1
2A
EB IG EB2B 1B 1A 3A 2A
1 2
M1IK1 2IK110 II1 EA11
4IG116
IG113
IG115
IG114 M
IF313 BATTERY
120A ALT 60A POWER 50A AM1(
for USA)
60A AM1(
for Canada)30A FAN 50A HTR HEATER
RELAY A/ C MAGNETI C
CL UTCH REL A Y A3
A/C SINGLE
PRESSURE SWE5
ENGINE COOLANT
TEMP. SW
(
WATER T EMP. SW) R1
RADIATOR
FAN MOTORA2
A/C CONDENSER
FAN MOTOR
BLOWER MOTOR
CONT ROL REL AY
B3
BL OWER MOTOR
10A ECU±B R3
RADIATOR FAN
RELAY NO. 2
I19
IGNITION SW7. 5A
HTR
R2
RADIATOR FAN
RELAY NO. 1
To Engine Contr ol
Module(
Engine and
Electronically
Controlled Tr ans miss ion
ECU)
< 3±7> < 4±8>
A4
A/C MAGNETIC
CLUTCH
W± RW
W± LW W±RB B R±L R± L R± L B± YLR±LL±B L±B
W± B W± B
W± B
L L
L±RL±W L±W
L±R W±GL
R±L R±L W±BL±R
R± L W± R(
2JZ±GTE) R± L(
2J Z±GTE)
BBR BR W± BLL
W± B L W±B W±B
W± B
L±WL
L
L±W
L
LW± B R±LW±B
W±B
L±B W± R(
2JZ±GTE)
R± L(
2J Z±GTE) P±L
B±Y
R± LR±L
G±R
G
GR GRG G± RR± L P±L W± R
R±L R±L
FRESH RE CI RC A24
A I R I NL ET CONTROL
SERVO MOTOR
L
L±W
L
W±B W±BL±R W± G
(
2JZ±GTE)
R±L
(
2J Z±GTE)
22 2
2
2
111
112
5
3
4 A/ C AMPLI FI ER
1234 567
8 9 10 11 12 13 14 15 16 17 18A ORANGE
4
12 13 14 15 16 123 5678
9 1011 17181920B ORANGE
1
234 5678
9
10 11 121
3 2ABLACK
1
2 BBLACK
A ORA NGEBL OWE R MOTOR C ON TROL RE LA Y
HE ATE R CONTROL S W
13 14 15 16 17 18 1920123 45
6 7 8 9 10 11 12 13 14B ORANGE
B+B
M+ M± GND S1 1
Fr ont side of
left fenderRight kic k panel12345 6789
10 11 12 13 14 15 16 17 18 19 20 21 22C ORANGE A1 2
A1 3
A1 4
B4 B5
A/C DUAL PRESSURE SW
1
23
412 A A 3 BLACK BA3 GRAY
B4 A , B5 B
H12 H13 22
2
W
W
W± B
Fr ont side of
lef t fenderEAFront side of
r ight f ender
W± B
Radiator Fan Automatic Air Conditioning Power Source