TOYOTA SUPRA 1997 Service Repair Manual

70
ENGINE CONTROL (2JZ-GTE)
THE ENGINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE
ENGINE, TRANSMISSION ETC. AN OUTLINE OF THE ENGINE CONTROL IS GIVEN HERE.
1. INPUT SIGNALS
(1) ENGINE COOLANT TEMP. SIGNAL CIRCUIT
THE ENGINE COOLANT TEMP. SENSOR DETECTS THE ENGINE COOLANT TEMP. WHICH IS INPUT INTO
TERMINAL THW OF THE ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(2) INTAKE AIR TEMP. SIGNAL CIRCUIT
THE INTAKE AIR TEMP. SENSOR IS INSTALLED IN THE MASS AIR FLOW METER AND DETECTS THE INTAKE AIR
TEMP. WHICH IS INPUT AS A CONTROL SIGNAL TO TERMINAL THA OF THE ENGINE CONTROL MODULE.
(3) OXYGEN DENSITY SIGNAL CIRCUIT
THE OXYGEN DENSITY IN THE EXHAUST EMISSION IS DETECTED BY THE HEATED OXYGEN SENSOR SIDE AND
INPUT AS A CONTROL SIGNAL TO TERMINAL OX1, OXS OF THE ENGINE CONTROL MODULE.
(4) RPM SIGNAL CIRCUIT
CRANKSHAFT POSITION IS DETECTED BY THE CRANKSHAFT POSITION SENSOR. CRANKSHAFT POSITION IS
INPUT AS A CONTROL SIGNAL TO TERMINAL NE OF THE ENGINE CONTROL MODULE.
(5) THROTTLE POSITION SIGNAL CIRCUIT
THE THROTTLE POSITION SENSOR DETECTS THE THROTTLE VALVE OPENING ANGLE AS A CONTROL SIGNAL,
WHICH IS INPUT INTO TERMINAL VTA1 OF THE ENGINE CONTROL MODULE. WHEN THE VALVE IS COMPLETELY
CLOSED, THE CONTROL SIGNAL IS INPUT INTO TERMINAL IDL1.
(6) VEHICLE SPEED CIRCUIT
THE VEHICLE SPEED IS DETECTED BY VEHICLE SPEED SENSOR NO. 1 INSTALLED IN THE TRANSMISSION AND
THE SIGNAL IS INPUT TO TERMINAL SP1 OF THE ENGINE CONTROL MODULE VIA THE COMBINATION METER.
(7) NEUTRAL POSITION SIGNAL CIRCUIT
THE PARK/NEUTRAL POSITION SW DETECTS WHETHER THE SHIFT POSITION IS IN Nº AND  Pº OR NOT, AND
THE SIGNAL IS INPUT INTO TERMINAL NSW OF THE ENGINE CONTROL MODULE.
(8) A/C SW SIGNAL CIRCUIT
THE OPERATING VOLTAGE OF THE A/C MAGNETIC CLUTCH IS DETECTED AND THE SIGNAL IS INPUT INTO
TERMINAL ACMG OF ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(9) BATTERY SIGNAL CIRCUIT
VOLTAGE IS CONSTANTLY APPLIED TO TERMINAL BATT OF THE ENGINE CONTROL MODULE. WITH THE
IGNITION SW TURNED ON, THE VOLTAGE FOR ENGINE CONTROL MODULE START-UP POWER SUPPLY IS
APPLIED TO TERMINAL +B OF THE ENGINE CONTROL MODULE VIA EFI MAIN RELAY.
THE CURRENT FLOWING THROUGH THE IGN FUSE FLOWS TO TERMINAL IGSW OF THE ENGINE CONTROL
MODULE.
(10) INTAKE AIR VOLUME SIGNAL CIRCUIT
INTAKE AIR VOLUME IS DETECTED BY THE MASS AIR FLOW METER AND THE SIGNAL IS INPUT TO TERMINAL
VG OF THE ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(11) STOP LIGHT SW SIGNAL CIRCUIT
THE STOP LIGHT SW IS USED TO DETECT WHETHER THE VEHICLE IS BRAKING OR NOT AND THE SIGNAL IS
INPUT INTO TERMINAL STP OF THE ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(12) STARTER SIGNAL CIRCUIT
TO CONFIRM WHETHER THE ENGINE IS CRANKING THE VOLTAGE APPLIED TO THE STARTER MOTOR DURING
CRANKING IS DETECTED AND THE SIGNAL IS INPUT IN TERMINAL STA OF THE ENGINE CONTROL MODULE AS
A CONTROL SIGNAL.
(13) ENGINE KNOCK SIGNAL CIRCUIT
ENGINE KNOCKING IS DETECTED BY KNOCK SENSOR FRONT AND REAR SIDE AND THE SIGNAL IS INPUT
TERMINALS KNK1 AND KNK2 AS A CONTROL SIGNAL.
SYSTEM OUTLINE

71
2. CONTROL SYSTEM
*SEQUENTIAL MULTIPORT FUEL INJECTION SYSTEM
THE SEQUENTIAL MULTIPORT FUEL INJECTION SYSTEM MONITORS THE ENGINE CONDITION THROUGH THE
SIGNALS INPUT FROM EACH SENSOR (INPUT SIGNALS FROM (1) TO (13) ETC.) TO THE ENGINE CONTROL
MODULE. THE BEST FUEL INJECTION TIMING IS DECIDED BASED ON THIS DATA AND THE PROGRAM
MEMORIZED BY THE ENGINE CONTROL MODULE, AND THE CONTROL SIGNAL IS OUTPUT TO TERMINALS #10,
#20, #30, #40, #50 AND #60 OF THE ENGINE CONTROL MODULE TO OPERATE THE INJECTOR (INJECT THE FUEL).
THE SEQUENTIAL MULTIPORT FUEL INJECTION SYSTEM PRODUCES CONTROLS OF FUEL INJECTION
OPERATION BY THE ENGINE CONTROL MODULE IN RESPONSE TO THE DRIVING CONDITIONS.
*ESA SYSTEM
THE ESA SYSTEM MONITORS THE ENGINE CONDITION THROUGH THE SIGNALS INPUT TO THE ENGINE
CONTROL MODULE FROM EACH SENSOR (INPUT SIGNALS FROM (1), (2), (4) TO (13) ETC.). THE BEST IGNITION
TIMING IS DECIDED ACCORDING TO THIS DATA AND THE MEMORIZED DATA IN THE ENGINE CONTROL MODULE
AND THE CONTROL SIGNAL IS OUTPUT TO TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5 AND IGT6 THESE SIGNALS
CONTROL THE IGNITER TO PROVIDE THE BEST IGNITION TIMING FOR THE DRIVING CONDITIONS.
*HEATED OXYGEN SENSOR HEATER CONTROL SYSTEM
THE MAIN HEATED OXYGEN SENSOR, SUB HEATED OXYGEN SENSOR HEATER CONTROL SYSTEM TURNS THE
HEATER ON WHEN THE INTAKE AIR VOLUME IS LOW (TEMP. OF EXHAUST EMISSIONS IS LOW) AND WARMS UP
THE OXYGEN SENSOR TO IMPROVE DETECTION PERFORMANCE OF THE SENSOR. THE ENGINE CONTROL
MODULE EVALUATES THE SIGNALS FROM EACH SENSOR (INPUT SIGNALS FROM (1), (2), (4), (9) TO (11) ETC.),
AND OUTPUTS CURRENT TO TERMINALS HT1, HTS TO CONTROL THE HEATER
*IDLE AIR CONTROL SYSTEM
THE IDLE AIR CONTROL SYSTEM (STEP MOTOR TYPE) INCREASES THE ENGINE SPEED AND PROVIDES IDLING
STABILITY FOR FAST IDLE-UP WHEN THE ENGINE IS COLD, AND WHEN THE IDLE SPEED HAS DROPPED DUE TO
ELECTRICAL LOAD AND SO ON. THE ENGINE CONTROL MODULE EVALUATES THE SIGNALS FROM EACH
SENSOR (INPUT SIGNALS FROM (1), (4), (5), (8), (9), (11) ETC.), OUTPUTS CURRENT TO TERMINALS ISC1, ISC2,
ISC3 AND ISC4 TO CONTROL THE IDLE AIR CONTROL VALVE.
*EGR CONTROL SYSTEM
THE EGR CONTROL SYSTEM DETECTS THE SIGNAL FROM EACH SENSOR (INPUT SIGNALS FROM (1), (4), (9), (10)
ETC.), AND OUTPUTS CURRENT TO TERMINAL EGR TO CONTROL THE EGR VALVE.
*FUEL PUMP CONTROL SYSTEM
THE ENGINE CONTROL MODULE OUTPUTS CURRENT TO TERMINAL FPC AND CONTROLS THE FUEL PUMP ECU
AND FUEL PUMP DRIVE SPEED IN RESPONSE TO THE DRIVING CONDITIONS
3. DIAGNOSIS SYSTEM
WITH THE DIAGNOSIS SYSTEM, WHEN THERE IS A MALFUNCTION IN THE ENGINE CONTROL MODULE SIGNAL
SYSTEM, THE MALFUNCTIONING SYSTEM IS RECORDED IN THE MEMORY. THE MALFUNCTIONING SYSTEM CAN BE
FOUND BY READING THE CODE DISPLAYED BY THE MALFUNCTION INDICATOR LAMP.
4. FAIL-SAFE SYSTEM
WHEN A MALFUNCTION HAS OCCURRED IN ANY SYSTEM, IF THERE IS A POSSIBILITY OF ENGINE TROUBLE BEING
CAUSED BY CONTINUED CONTROL BASED ON THE SIGNALS FROM THAT SYSTEM, THE FAIL-SAFE SYSTEM
EITHER CONTROLS THE SYSTEM BY USING DATA (STANDARD VALUES) RECORDED IN THE ENGINE CONTROL
MODULE MEMORY OR ELSE STOPS THE ENGINE.

7
8 6
30A
EFI
NO. 230A
EFI
NO. 1
52 31
52 31
6
5
M 4
BI EB22
22
22 22
22
IC2 11 IB1 5 IB1 4
BP1 6 IC2 10 IC212 IJ213
BP12EA14
E1 6
16
B V- WG B- RB- Y
B- RB- Y
B- W
W- B
G
W- BB- W
B- W
GL
L- RV- W W- B W- B
W- BW- B LB- W B- W B- W
L LB- R B- W W- R W- R B
B- Y
IGNITION SW
PARK/NEUTRAL POSITION SW (
A/T)
I19
P 2
FROM POWER SOURCE SYS TEM (
SEE PAGE 56)
EFI NO. 2
RELAY
EFI MAIN
RELAY
BATTERYFUEL PUMP
ECU
FUEL PUMP F14F15
B
22 11
E 7
B- W
E 7
B- R
B- R B- R B- R
B
TO STARTER
RELAYE16 : M/T
E17 : A/T
(
A/T)
B- W
I 4B
(
A/ T)(
A/T)
2 1
IJ1 2
B B- W B- W
B(
M/T) (
M/T) (
M/T)
(
A/ T)(
A/T)
(
A/T)
CLUTCH STA RT SW (
M/T) C 9
P
N
85 2EFPC FP +B DI
AM2 IG2
ST2
7. 5A
ST
1K 41J 6
2
30A AM2
2A 11 2
5
W- B
72
ENGINE CONTROL (2JZ-GTE)

II1 13
EA22EA25 EA18
E12 E14 E14 I20
IJ14 IJ112IJ19
1 2
1 2
1 2
112
1 2
1 2 A 24 B76 A33 A1B20 B19 B18 B17 B16 B15
A 21 A22 B77 B74 B35 B33 B34 B32 234876
52 4613 1
DI FPC STA ISC1 ISC3 ISC2 ISC4B- R B- R
B- R
B- R B- R B- R V- WG
B B- RB- Y
B- R B- WB- Y B- W
B- RGR
B- RB- W B- W B- O
G
V- WB- R
B- R
B- R B- R
B- W B- W B- O B- OB- Y B- WGR
R- L
R- Y
R- G
R- W
R
R- BL
BR
R
G
B- Y
WB- O G
V- W
B
V
V- Y
G- O
G- W
R- G B- R B- R B- R B- RB
#10 #20 #30 #40 #50 #60
#60 #50 #40 #30 #20 #10 IGSW BATT NSW M- REL+BSFI RESISTOR
INJECTOR NO. 1
S 1
I12
INJECTOR NO. 2 I13
INJECTOR NO. 3 I14
INJECTOR NO. 4 I15
INJECTOR NO. 5 I16
INJECTOR NO. 6 I17 V 3
I 1VSV (
EVAP)
IDLE AIR CONTROL VALVE
ENGINE CONTROL MODULEA E 9 , E10
B
(
A/ T)
A 31
E12
B- R
+B
B 75
1
V 2
VSV (
EGR)
B- R
EGR
B- R
P
EVAP (
A/ T)
2
7. 5A
IGN
1E 81J 3
2
73

2 1
2 1E16 E1 1
B 40 B38 B45 B66 B28 B62 32512 3
1E2 PIM VC B- R B- R
W- B
L- R W- B
BR
BR
B- R
B- R
B- YBR Y- RP- L G- R G- B
B- R B- R
W- B
B- Y
L- R
VSV1 VSV3 THA VG E2G PM12 1
B 46
BR- Y
THG TURBO PRESSURE SENSOR
MASS AIR FLOW METER M 1T14
ENGINE CONTROL MODULE
V 4
VSV (
EXH AUST
BYPASS VALVE)
E 1
EGR GAS TEMP. SENSOR
A E 9 , E10B
V 7
VSV (
INTAKE AIR
CO NTROL VA LV E)
E1 0E10
B- R
4 THA VG E2E2G B- R
B- R
B- R
+B
B 47 B72 B71 B48 B73 B60 B39
1 2
1 2
1 2
E11 E13 E10 E14IJ1 20IC1 12 IC19IC110
IC1 4IJ2 5IJ214 IJ24
24
4
B- R
B- R
B- RR- L
BR
B- R B- R B- RBR
G- Y L- W
W- LW B- L BR- W
R- L R- L BR- W
R- L BR- W B- R B- R B- R
B- R
B- R
B- RB- R
B- R
B- R W
21 313 OXS HTS HT1 OX1 FPU VSV4 VSV2
(
SHIELDED) (
SHIELDED)
(
SHIELDED) (
SH I ELDED) (
SHIELDED)
(
SHIELDED)
HEATED OXYGEN
SENSOR (
BANK 1
SENSOR 2)
HEATED OXYGEN SENSOR
(
BANK 1 SENSOR 1)
H11
H 5
(
SHIELDED) VSV (
FUEL
PRESSURE UP)
VSV (
WASTE
GATE VALVE)
VSV (
EXHAUST
GAS CONTROL VALVE) V 6
V 8
V 5
11B 50 B49 KNK1 KNK2
W W (
SHIELDED)
KNOCK SENSOR
(
ON REAR SIDE) KNOCK SENSOR
(
ON FRONT SIDE)
K 2
(
SHIELDED) K 1
(
SHIELDED) E14
W- B
W- B
+B E HT OX
E1 +B HT OX
74
ENGINE CONTROL (2JZ-GTE)

B 65
W- B
E2 2 1
2 1
E14E16 E16 E16 E16
E16
B 24 B 44 B 63 B 42 B 41 B43 B64
B 27 B 7 B 25 B 6 B 26 1234 4321
123 A A A A A
8 A A A
+BE1 G1 G- G2 NE- NE L- R W- BW- B W- B W- B W- B
L- R
B- R B- RBR BR
BRL- R
Y
R
Y- L
GR- R
L- Y
OW-BW- BW- B GR - RY- L W- BRY
TE1 VCC VTA1 IDL1 VTA2 I DL2 THW OIL
(
SHIELDED) (
SHIELDED)
(
SHIELDED) (
SHIELDED)
A 5 E 3
A/T FLUID TEMP. SENSOR ENGINE COOLANT TEMP. SENSOR
D 1
DATA LINK CONNECTOR 1 ENGINE CONTROL MODULEA E 9 , E10
B
L- R
THROTTLE POSITION
SENSOR T 2
SUB THROTTLE
POSITI ON SENSOR S 5
BRE13
B- R
JUNCTION
CONNE CTOR J 2
BR2 1
2 112 (
SHIELDED)
(
SHIELDED)
(
SHIELDED)
BR B- WW
B- R B- RBR L
CAMSHAFT POSITION
SENSOR NO. 1
CAMSHAFT POSI TION
SENSOR NO. 2CRANKSHAFT POSITION
SENSOR C 1
C 2 C 3
BR
BR
BR
(
A/T)(
A/ T)
A 16II1 29
B- W B- W
TACO
TO TACHOMETE R
[COMB. METER] O
I17 L
A
(
SHIELDED) (
SHIELDED)II1 EA1 IJ1
A 34 A23 A11
A/C ACMG ABS
L- R
W- G
Y- R Y- RW- GL- R
TO ABS ECU FROM A/C
MAGNETIC
CLUTCH
RELAY FROM A/C
AMPLIFIER
31 2 14
A 20 TE1
L
75

1 2
IF1 3
II1 32IJ1 11
A 15 A 38 A27 A26 A14 A13A 4
B 78 B57 B56 B55 B54 B53 B52 B58 A6A2 E03 IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 IGF W SP1ELS NEO EFI + EFI - ETC+ ETC-STP
A 1A2A3A9A8A7B3
IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 IGF
L- BP BR
BR
R- W
W- R
LG
B- R
L
R
R- Y
L- B
P
L- R
B
W
Y
BR
R- Y R- Y
G- OL- R
G- W G- W
FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
W
ENGINE CONTROL MODULEA E 9 , E10BDIODE
(
IDLE- UP) D 8
13
IGNITER2
S11
STOP LIGHT SW
A I 2 , I 3B I 2
BR
BR
BRI17
E16 IC1 8
IJ1 18B 69 B80 B79 E1 E01 E02
ED I17
BR BR
BR BR BR
BR BR BR
BR
BR
BR
BRBRP- L
B 67
P
A 40
V- Y
A 39
G- O
16 7 20 8 21 17 6 19
A 8SDL
G
IJ1 6
IJ1 7 (
SHIELDED)
G(
SHIELDED)
(
SHI ELDED)EFIF VTO1 VTO2 15 14
(
SHI ELDED) (
SHI ELDED)
B 51
W- L
9
FAI LTHROTTLE ECU T15
BR
10A
MIR- HTR10A
PANEL15A
STOP
1H 41E61I10
GE11 GE12 VTA2VTA1 EFIF ET C- ETC+ FAIL EFI- EFI+ NE
76
ENGINE CONTROL (2JZ-GTE)

I14
I 5
II1 2 II123 II18
II1 15 II111 IF173 2
1 3
IF 2 15
67
3 8L- BL- RY
P BR
L- BBR
PL- B
P
BR
L- R
Y
RYY Y
Y
L- B
V10
VEHICLE SPEED SENSOR NO. 1
(
COMBINATION METER)
TELLTALE LIGHT RHMALFUNCTION INDICATOR LAMP
[TELLTALE LIGHT LH] T 5
T 6
FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
L- B
DATA LINK
CONNECTOR 2 D 5I14I14
A 11 A10 B11 A 9
L- R
Y Y
R
BR
Y
L- R
SPEEDOMETER
[COMB. METER]B C10 , C12A L- B
BR
I 8 IC2 14
B- W B- W
DATA LINK
CONNECTOR 3 D17
IE IG I11 4
W- B
W- BW- B W- B
EDIJ1 55
BR BR
2
G
I14
10A
GAUGE
1E 12 7. 5A
OBD-
1C 14
ODO AND
TRIP
E1W
16
BAT
SG CG SDL
77

78
ENGINE CONTROL (2JZ-GTE)
EFI MAIN RELAY

3-
5 : CLOSED WITH THE IGNITION SW AT ON POSITION
EFI NO. 2 RELAY

3-
5 : CLOSED WITH THE IGNITION SW AT ON POSITION
E3 ENGINE COOLANT TEMP. SENSOR
1-2 :10-20 KW (-20
C, -4
F)
4-7 KW (0
C, 32
F)
2-3 KW (20
C, 68
F)
0.9-1.3 KW (40
C, 104
F)
0.4-0.7 KW (60
C, 140
F)
0.2-0.4 KW (80
C, 176
F)
I1 IDLE AIR CONTROL VALVE
1, 3-2 : APPROX. 10-30W
4, 6-5 : APPROX. 10-30 W
I12, I13, I14, I15, I16, I17 INJECTOR
1-2 : APPROX. 13.8 W
T2 THROTTLE POSITION SENSOR
1-4 : APPROX. 4-9 KW
1-3 :3.3-10.0 KW WITH THROTTLE VALVE FULLY OPENED POSITION
0.2-0.8 KW WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0 MM (0 IN.)
1-2 :0-2.3 KW WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.45 MM (0.0177 IN.)
INFINITY WITH CLEARANCE BETWEEN LEVER AND STOP SCREW 0.55 MM (0.0216 IN.)
E9 (B), E10 (A) ENGINE CONTROL MODULE
(VOLTAGE AT ENGINE CONTROL MODULE WIRING CONNECTORS)
BATT-E1 : ALWAYS 9-14 VOLTS
IGSW-E1 :9-14 VOLTS WITH THE IGNITION SW ON
M-REL-E :9-14 VOLTS WITH THE IGNITION SW ON
+B-E1 :9-14 VOLTS WITH THE IGNITION SW ON
IDL1-E2 :9-14 VOLTS WITH THE IGNITION SW ON AND THE THROTTLE VALVE FULLY OPEN
0-1.5 VOLTS WITH THE IGNITION SW ON AND THE THROTTLE VALVE FULLY CLOSED
VTA1-E2 :0.3-0.8 VOLTS WITH THE IGNITION SW ON AND THE THROTTLE VALVE FULLY CLOSED
3.2-4.9 VOLTS WITH THE IGNITION SW ON AND THE THROTTLE VALVE OPEN
THA-E2 :0.5-3.4 VOLTS WITH THE IGNITION SW ON AND THE INTAKE AIR TEMP. 20
C (68
F)
THW-E2 :0.2-1.0 VOLTS WITH THE IGNITION SW ON AND THE COOLANT TEMP. 80
C (176
F)
STA-E1 :6-14 VOLTS WITH THE ENGINE CRANKING
W-E1 :9-14 VOLTS WITH ENGINE IDLING
IGF-E1 : PULSE GENERATION (ENGINE IDLING)
NSW-E1 :0-3 VOLTS WITH THE IGNITION SW ON AND THE SHIFT LEVER P OR N POSITION
9-14 VOLTS WITH THE IGNITION SW ON AND THE SHIFT LEVER EXCEPT P OR N POSITION
SP1 : PULSE GENERATION
TE1-E1 :9-14 VOLTS WITH THE IGNITION SW ON
A/C-E1 :0-1.5 VOLTS WITH THE IGNITION SW ON AND THE A/C OFF
7.5-14 VOLTS WITH THE IGNITION SW ON AND THE A/C ON
ELS-E1 :9-14 VOLTS WITH THE TAILLIGHT ON, DEFOGGER ON
0-1.5 VOLTS WITH THE TAILLIGHT OFF, DEFOGGER OFF
STP-E1 :7.5-14 VOLTS WITH THE STOP LIGHT SW ON (BRAKE PEDAL DEPRESSED)
0-1.5 VOLTS WITH THE STOP LIGHT SW OFF
ISC1, ISC2, ISC3, ISC4-E1 : PULSE GENERATION (ENGINE IDLING)
#10, #20, #30, #40, #50, #60-E01, E02 : PULSE GENERATION (ENGINE IDLING)
(RESISTANCE OF ENGINE CONTROL MODULE WIRING CONNECTORS)
IDL1-E2 : INFINITY WITH THE THROTTLE VALVE OPEN
0-2.3 KW WITH THE THROTTLE VALVE FULLY CLOSED
VTA1-E2 :3.3 KW-10.0 KW WITH THE THROTTLE VALVE FULLY OPEN
200 W -800 W WITH THE THROTTLE VALVE FULLY CLOSED
VCC-E2 :4 KW -9 KW
THA-E2 :2 KW -3 KW WITH THE INTAKE AIR TEMP. 20
C (68
F)
THW-E2 :200 W -400 W WITH THE COOLANT TEMP. 80
C (176
F)
ISC1, ISC2, ISC3, ISC4- +B :10-30 W
#10, #20, #30, #40, #50, #60- +B :13.2-14.2 W
SERVICE HINTS

79
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A524 (2JZ-GTE)H524S125
C124H1129S525
C224I125 (2JZ-GTE)S1129
C324 (2JZ-GTE)I2B25T225 (2JZ-GTE)
C928I3A25T529
C10A28I1225 (2JZ-GTE)T629
C12B28I1325 (2JZ-GTE)T1425
D124 (2JZ-GTE)I1425 (2JZ-GTE)T1529
D528I1525 (2JZ-GTE)V225 (2JZ-GTE)
D828I1625 (2JZ-GTE)V325 (2JZ-GTE)
D1728I1725 (2JZ-GTE)V425
E124 (2JZ-GTE)I1929V525
E324 (2JZ-GTE)J229V625 (2JZ-GTE)
E9B29K125 (2JZ-GTE)V725
E10A29K225 (2JZ-GTE)V825
F1430M125V1025 (2JZ-GTE)
F1530P225 (2JZ-GTE)
: 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)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1I20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
2A22BATTERY AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
: 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)EA232ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO. 2)
IB136ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IC136FLOOR NO 2 WIRE AND COWL WIRE (LEFT KICK PANEL)IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
IF136INSTRUMENT 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)
BP140FUEL GAUGE WIRE AND FLOOR NO. 2 WIRE (LUGGAGE ROOM FRONT LH)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EB32 (2JZ-GTE)FRONT SIDE OF LEFT FENDER
ED32 (2JZ-GTE)REAR SIDE OF INTAKE MANIFOLD
IE36LEFT KICK PANELIF36LEFT KICK PANEL
IG36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E732ENGINE ROOM MAIN WIREI238COWL WIRE
E10I438INSTRUMENT PANEL WIRE
E11I538INSTRUMENT PANEL WIREE12I838INSTRUMENT PANEL WIRE
E1332ENGINE WIREI1138COWL WIRE
E14
32ENGINE WIRE
I1438INSTRUMENT PANEL WIRE
E16I1738ENGINE WIRE
E17I2038COWL WIRE