TOYOTA SUPRA 1997 Service Repair Manual

41
G
Connector Joining Wire Harness and Wire Harness
CODEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
BM1BACK DOOR NO. 1 WIRE AND FLOOR NO.2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BO1BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)
BP1FUEL GAUGE WIRE AND FLOOR NO.2 WIRE (LUGGAGE ROOM FRONT LH)

42
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points

43
G
Connector Joining Wire Harness and Wire Harness
CODEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
BQ1FLOOR NO. 2 WIRE AND SEAT WIRE (UNDER THE FRONT LH SEAT)

FRONT TURN SI GNAL
LIGHT RH AND
PARKING LIGHT RH
EFI NO. 2 RELAY
EFI MAIN RELAY
HE ATER RELAY
FRONT WIPER MOTOR
A/C CONDENSER FAN
MOTOR BRAKE FLUID LEVEL
WARNING SW
COMBINATION METER
ENGINE OIL
LEVEL SENSOR
NOISE FILTER
IGNITER PARKING LIGHT LH FRONT SIDE MARKE R
LIGHT LHDAYTIME
RUNNING
LIGHT RELAY
NO. 3
FRONT FOG LIGHT RH
EN GI NE H OOD
COURTESY SW
FR ON T TU RN S I G NA L
LIGHT LH
FRONT SIDE MA RKER
LIGHT RH
HE A DL I GHT LO R H
HEADLIGHT LO LH
ABS RELAY
A/ C DUAL PRESSURE
SW
ABS SOLENOID
RE LA Y
ABS ACTUATOR E 2
E 5 E 2 E 2 2
2
2
5
EB EA
HEATED OXYGEN
SEN SOR
(
BANK 1 SENSOR 2)
HEATED OXYGEN
SEN SOR
(
BANK 1 SENSOR 1)
ED EC II1 24
I17 E14I 2
IJ 1 18
(
E1)
(
E01)
(
E02) IC18 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 W- B
W- B W- B
(
*3)W- B
(
*1)
W- B
(
*4)
W- B
W- B
W- B
W- B
W- B
W- BW- B
BR BR
BR
BR
BR
BR BR
BR BR
BR
W- B
(
*3)W- B
W- B
(
*3) E 7 : * 3
E20 : * 4E 2 : * 3
E18 : * 4E 2 : * 3
E18 : * 4
E 2 : * 3
E18 : * 4
E 5 : * 3
E19 : * 4
DA YTIME RUNNING
LIGHT RELAY
NO. 3 RA DIATOR FAN MOTOR
NO. 1
E11 : * 3
E24 : * 4W- B
W- B
W- B W- B
W- B
(
*1)E 2 : * 3
E18 : * 4
W- B
(
*3)
DA TA L I NK
CONNECTOR 2RADIATOR FAN
RELAY NO. 2 (
E) ENGI NE CO OLA NT TE MP .
SW
(
-S)
E 2 W- B
W- B W- B W- B W- B
W- B
W- B
BR E 2 : * 3
E18 : * 4
E 2
W- B
(
*1) (
*3)(
*3)(
*3)
(
*3)(
*3)
(
*3)
(
*3)ENGI NE CONTROL
MODULE W- B
BR
DA TA L I NK
CONNECTOR 1
DA TA LINK
CONNECTOR 3IJ15
BR
(
*4)
BR
(
*4)
E 9 : * 3
E21 : * 4
RA DIATOR FAN MOTOR
NO. 2W- B
(
*3) FRONT FOG LIGHT LH
W- B
THROTTLE
ECUDA TA L INK
CONNECTOR 3 BR
BR
BRBR
(
E03) BR (
*3)
W- B (
*3) (
E1)
(
E01)W- BW- B
(
*2) E 2
W- B
(
*1) W- B
(
*1)
IJ15
(
*3)
BR
BR
240
J GROUND POINT

POWER STEERING
PRESSURE SW
DOOR LOCK MOTOR AND
DOOR UNLOCK
DETECTION SW LH
DOOR KEY LOCK AND
UNLOCK SW LH
REMOTE CONTROL
MIRROR AND MIRROR
HEATER LH
POWER WINDOW MASTER
SW
PERSONAL LI GHT
AIRBAG
SENSOR
ASSEMBLY
POWER MAIN RELAY
INTEGRATION RELAY
LIGHT CONTROL SW
[COMB. SW]
DI MME R SW
[COMB. SW]
DAYTIME RUNNING
LI GHT RELAY NO . 3MAIN HEATED
OXYGEN SENSOR
(
BANK 1 SENSOR 1)
MAIN HEATED
OXYGEN SENSOR
(
BANK 2 SENSOR 1)
(
E1)
CRUISE CONTROL
ECU
KI CK DOWN SW
CRUISE CONTROL SW
[C OMB . SW ]
UNLOCK WA RNI NG SW
KEY INTERL OCK
SOLENOI D
[UNLOCK WARNING SW]
WIPER AND WASHER SW
[C OMB . SW ]
RHEOSTAT
RE MOTE CO NT ROL
MIRROR SW
TELLTALE LIGHT LH
TURN SIGNAL
FL AS HER I17 E27
E28
I17
I 9
I 2
I 2
I 3
I 3
I 1 B 1 B 1 B 1IJ118
ED E28
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
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 W- B W- B
(
E1)
(
E2)W- B
W- B
W- B
W- B W- B DA TA L I NK
CONNECTOR 2
DA TA L I NK
CONNECTOR 1
E NGI NE CONTROL
MODULE
(
A/T) BR
(
E03)
I 2W- B
W- B
W- B(
*2)
(
*1)
(
*1)(
*1)
(
*2) SUB HE ATED OXYGE N
SENSOR
(
BANK 1 SENSOR 2)E28
BR A A BR
J 2
JUNCTION
CONNE CTOR
BR
CRUISE CONTROL
ACTUATOR W- B
IB617
W- B
I 9 : * 3
I 4 : * 4
1H13
1K12
1E18
1J1
1K6 1D10
1F6
1G3
IG4
1K5
241
* 4 : 2JZ- GE *2 : USA * 1 : CANADA * 3 : 2JZ- GTE

STEREO POWER
AMPLIFIER
RADIO AND PLAY ER
BLOWER MOTOR
CONTROL RELAY
SEAT HEATER RELAY
(
PASSENGER' S SEAT)
SEAT HEATER
(
PASSENGER' S SEAT)
BUCKLE SW RH
DOOR COURTESY SW RH
HIGH BEAM INDICATOR
LIGHT [COMB. METER]
TRACTION CONTROL SW
SHIFT LOCK ECU
ELECTRONICALLY
CONTROLLED
TRANSMISSION
PATTERN SELECT SW
O/D MAIN SWSEAT HEATER SW
DA YTIME RUNNING
LIGHT RELAY (
MAIN) (
EP)
(
GND)
HE ATE R CONTROL SW
CI GARETTE LI GHTER
CL O CK
AU TO AN TENNA
CONTROL RELAY GLOVE BOX LIGHT SW
THEFT DETERRENT
AND DOOR LOCK
CONTROL ECU
PPS ECU
DOOR LOCK CONTROL
SW RH RE MOTE CONTROL
MIRROR AND MIRROR
HE A TE R RH
DOOR LOCK MOTOR AND
DOOR UNL OCK
DE TECTION S W RH DOOR KEY LOCK AND
UNLOCK SW RH IG
IH I24 I24 I23
I23
I 2
I11
I10I21
B 2 B 2 I25
B 2 IL116 IF311
IK11
IF114
I18
I18IF
I14(
E2)
(
VER1)COMBINATION
METER
A/C
AMPLIFIER
W- B
(
*2)W- B
(
*1)
W- B
(
*2)
W- B
(
*1)
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- 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- BW- B
W- B W- B W- B W- B W- B W- B W- B W- B
W- B
W- B BR BR BR
A
A
A
A
A
A A
A
W- B W- BW- B
W- B W- B
W- B W- B W- B
JUNCTION
CONNECTOR J 1
I11 : * 3
I 4 : * 4 (
*1)(
*1) (
*6)
(
GND)
(
GND)ABS ECU
W- BW- B
(
A/T)
(
A/T)
DA TA LI NK
CONNECTOR 3 W- B I 3
I14
BR
W- BW- BW- B (
*5)
COMBINATION METER
TELLTALE LIGHT RH
FUEL SENDERI 8
I 3
IE13
BP11
BR BRBR
BR
BR
BR
BR
W- B
I10 : * 3
I 9 : * 4I18 : * 3
I 4 : * 4
I18 : * 3
I 4 : * 4
I11 : * 3
I 1 : * 4
242
J GROUND POINT

SEAT HEATER RELAY
(
DRIVER' S SEAT)
SEAT HETER
(
DRIVER' S SEAT)
HI GH MOUN TED STOP
LIGHT
REAR COMBINATION
LIGHT LH
DOOR COURTESY SW LH
LICENSE PLATE
LIGHT
BUCKLE SW LH
FUEL PUMPREAR SIDE MARKER
LIGHT RH
RE AR COMBINATION
LIGHT RH
LUGGAGE COMPARTMENT
KEY UNLOCK SW
REAR SIDE MARKER
LIGHT LH
LI GHT FAI LURE
SEN SOR
FU EL PUMP EC U B 9
B 9
B 3
B 3
B 3
I 7B 5 B 4 B 5 B 4B 7 B 7
BI BJ BQ1 2
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
(
*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
BP12* 1 : CANADA
*2 : USA
* 6 : W/ O STEREO POWER AMPLIFIER * 5 : W/ STEREO POWER AMPLIFIER *3 : 2JZ- GTE
*4 : 2JZ- GE
P OWE R SEA T CONTRO L
SW(
DRIVER' S SEAT)
W- B
BK
W- B
B10 BO13
W- B W- B W- B
W- B
B 6 BM1 2
W- B
W- B
243

244
J GROUND POINT
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
J129J229
: 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
BK40RIGHT SIDE OF HIGH MOUNTED STOP LIGHT

245
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E2I1038COWL WIREE532ENGINE ROOM MAIN WIREI1138COWL WIRE
E732ENGINE ROOM MAIN WIREI1438INSTRUMENT PANEL WIRE
E9I1738ENGINE WIRE
E1432ENGINE WIREI1838COWL WIRE
E18I2138INSTRUMENT PANEL WIRE
E1934ENGINE ROOM MAIN WIREI2338COWL WIREE2034ENGINE ROOM MAIN WIREI2438COWL WIRE
E21I2538INSTRUMENT PANEL WIRE
E24B140FRONT DOOR LH WIRE
E2734ENGINE WIREB240FRONT DOOR RH WIRE
E28B3
I138COWL WIREB4
I238COWL WIREB540FLOOR NO. 2 WIRE
I338INSTRUMENT PANEL WIREB6
I438COWL WIREB7
I738FLOOR NO. 2 WIREB942SEAT WIRE
I838INSTRUMENT PANEL WIREB1040BACK DOOR NO. 2 WIRE
I938COWL WIRE
A AAA
AA AA
(HINT : SEE PAGE 7)
J 1
AA AA
AAAAAAA
(
HINT : SEE PAGE 7) J 2

44
H POWER SOURCE (Current Flow Chart)
The chart below shows the route by which current flows from the battery to each electrical source
(Fusible Link, Circuit Breaker, Fuse, etc.) and other parts.
The next page and following pages show the parts to which each electrical source outputs current.
[LOCATION]1: J/B No. 1 (See page 20) 2: R/B No.2 (See page 22)