clutch TOYOTA CAMRY 1999 Service Repair Manual

CRUISE CONTROL
The cruise control system is a constant vehicle speed controller which controls the opening angle of the engine throttle valve
by the SW, and allows driving at a constant speed without depressing the accelerator pedal.
SET CONTROL
When the SET/COAST SW is operated while traveling with the CRUISE SW on, the speed when the SET/COAST SW is
operated to off is memorized, and the vehicle speed is controlled at that speed.
COAST CONTROL
When the SET/COAST SW is operated to on, the motor in the actuator rotates the throttle valve until it is closed fully to
decrease the vehicle speed, and the speed when the SET/COAST SW is operated to off is memorized, and the vehicle
speed is controlled at that speed.
Furthermore, every time the SET/COAST SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle
speed is decreased by approx. 1.5 km/h (0.9 mph).
ACCEL CONTROL
When the RESUME/ACCEL SW is operated to on, the motor in the actuator rotates the throttle valve to open direction to
increase the vehicle speed, and the speed when the RESUME/ACCEL SW is operated to off is memorized, and the vehicle
speed is controlled at that speed.
Furthermore, every time the RESUME/ACCEL SW is operated momentarily (Approx. 0.5 sec.) to on, the memorized vehicle
speed is increased by approx. 1.5 km/h (0.9 mph).
MANUAL CANCEL MECHANISM
While traveling with the cruise control, if the following signal is input, the magnetic clutch of the actuator is cut, the motor is
controlled to close the throttle valve, and the cruise control is canceled.
(1) Stop lamp SW is on (Brake pedal is depressed)
(2) The CANCEL SW of the control SW is on
(3) CRUISE SW is off
RESUME CONTROL
After canceling the cruise control by the Manual Cancel operation, (Except when the CRUISE SW is off) if the vehicle speed
is above the minimum speed limit (Approx. 40km/h, 25mph), operating the RESUME/ACCEL SW to on from off will cause the
system to accelerate and resume to the vehicle speed before manual cancellation.
OVERDRIVE FUNCTION
The overdrive may be cut on an uphill grade, while traveling with the cruise control.
After the overdrive is cut, if the vehicle speed reaches the overdrive resume speed (Set speed minus 2 km/h (1.2 mph) ), and
if the system determines that the uphill grade has finished, the overdrive will resume after the overdrive timer operation.
AUTO CANCEL OPERATION
If any of the following conditions are detected, the set speed is erased and the control is canceled.
(1) Overcurrent to the magnetic clutch traction transistor
(2) The motor does not operate
(3) Short in the magnetic clutch
(4) Disconnection in the magnetic clutch (Includes blown stop lamp fuse)
(5) No vehicle speed signal input
(6) Ground short of the control SW input
(7) The actual vehicle speed becomes slower than the minimum speed limit
SYSTEM OUTLINE

AIR CONDITIONING
A/C EVAPORATOR
TEMP. SENSOR A11
EC IG2 3 IG2 1IG3 6 IG3 10IJ2 9IJ210
C 18 B 9 B 10 A 10 A21 D10 A 151
4
IJ2 2
B
A2 1
B4
A A/C MAGNETIC
CLUTCH AND
LOCK SENSOR A 2
A/C DUAL
PRESSURE SW A 3
ENGINE CONTROL MODULE L±B
B±W
G
B±W
R±B
R±B
R±W1
2
L±W
BR L±R
BR
W±L
LOCK PRSMGC A/CS THR E2 LOCK IN
BR BRW±L
BRW± L
BR R±B
L±Y
GB E 4 A , E 5 C, E 6 IG1 1B B
JUNCTION
CONNECTOR J 7
JUNCTION
CONNECTOR J20 BJUNCTION
CONNECTOR J12
G
L±Y
BR
D , E 7

Current always flows from the HTR fuse to TERMINAL 1 of the HTR relay. When the ignition SW is turned on, the current
from the HEATER fuse flows to TERMINAL 6 of the air vent mode control servo motor, and to the MG CLT relay (Coil side) to
TERMINAL (A) 21 of the engine control module, and to TERMINAL 1 of the A/C dual pressure SW to TERMINAL 4 to
TERMINAL (D) 10 of the engine control module, and to the HTR relay (Coil side) to TERMINAL 3 of the blower SW.
1. AIR VENT MODE CONTROL SERVO MOTOR OPERATION
When the damper is in FACE position and B/L mode on the heater control SW is selected, current flows from TERMINAL 7
of the heater control SW to TERMINAL 2 of the air vent mode control serve motor so that a signal that the ground circuit is
activated is input into TERMINAL B of the control circuit inside the air vent mode control servo motor. Simultaneously, a
signal that the ground circuit is not activated is input into TERMINAL A of the control circuit inside the servo motor. These two
signals activate the control circuit so that current flows from the HEATER fuse to the servo motor, causing the servo motor to
operate and the damper to move to B/L position. When the damper reaches B/L position. A ground cut signal is input into
TERMINAL B of the control circuit, the control circuit operates, the servo motor stops rotating and the damper stops at B/L.
When another mode position is selected, input of signals into TERMINAL A and TERMINAL B of the control circuit that
ground is made or not (as explained above) activates the control circuit and moves the serve motor to the desired position.
2. AIR CONDITIONING OPERATION
When the blower SW is on, current flows from the HEATER fuse to the HTR relay (Coil side) to TERMINAL 3 of the blower
SW to TERMINAL 1 to GROUND, activating the HTR relay. This causes current to flow from the HTR fuse to the HTR relay
(Point side) to A/C fuse to TERMINAL 2 of the A/C SW. If the A/C SW is turned on at this time, a signal is input into the
engine control module. This activates the engine control module and MG CLT relay so that current flows from the HEATER
fuse to the MG CLT relay (Point side) to A/C magnetic clutch. Causing The compressor to operate.
When blower SW is on and heater control SW is at DEF position, it causes A/C to run whether A/C SW is on or not.
HTR RELAY
1±2 : Closed with the ignition SW at ON or ST position and the blower SW on
MG CLT RELAY
5±3 : Closed with the ignition SW at ON or ST position,
the blower SW on and the A/C SW on or the heater control SW at DEF position
A3 A/C DUAL PRESSURE SW
1±4 : Open with pressure less than approx. 2.0 kgf/cm
2 (28 psi, 196 kpa) or above approx. 32 kgf/cm2 (455 psi, 3138 kpa)
B3
BLOWER RESISTOR
2±1 : Approx. 1.64 W
2±3 : Approx. 3.24 W
2±6 : Approx. 0.47 W
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A228B430J731
A328E4A30J931
A1130E5B30J1231
A1230E6C30J2031
A1530E7D30J3031
B230F1328
B330H730
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
126Engine Room R/B No.1 (Engine Compartment Left)
SYSTEM OUTLINE
SERVICE HINTS

(
E04)
(
E01)
(
E02)
(
E03)
HEATED OXYGEN
SENSOR
A/C MAGNETIC
CLUTCH AND
LOCK SENSOR COMBINATION
METER
IGNITION COIL AND
IGNITER NO. 1
IGNITION COIL AND
IGNITER NO. 2
DATA LINK
CONNECTOR 1
DATA LINK
CONNECTOR 2
DATA LINK
CONNECTOR 3ENGINE
CONTROL
MODULE IH13
A
A
EC A
EC
I 4 IG212
B B
B B A C
A CIG36
IJ210AA
A BR
BR
BR
BRBR
BR
BR
BR
BR BR
BR BR
BR BR BR BR
BR
BR BRBR
BR
A
JUNCTION
CONNECTOR J18
(
ET)
(
SG)
J 6
JUNCTION
CONNECTORB A, J 7(
E1) IG13
ENGINE CONTROL
MODULEBR A IDLE AIR
CONTROL VALVEW±B
W± B
BR
JUNCTION
CONNECTOR J20
(
ES)
W±B W±B
BRBR
W± B W±B
BL IJ 6
BB1 B 2IG
DOOR LOCK MOTOR
AND DOOR UNLOCK
DETECTION SW
REAR RH RADIO AND PLAYERCOMBINATION
METER (
E05)

L PART NUMBER OF CONNECTORS
Code Part Name Part NumberCodePart Name Part Number
Note : Not all of the above part numbers of the connector are established for the supply. In case of ordering
a connector or terminal with wire, please confirm in advance if there is supply for it using ªParts Catalog
Newsº (published by Parts Engineering Administration Dept.).
A 1A/C Condenser Fan Motor90980±10928
A 2A/C Magnetic Clutch and Lock Sensor90980±10942
A 3A/C Triple Pressure SW (A/C Dual and
Single Pressure SW)90980±10943
A 4ABS Actuator90980±11413
A 5ABS Actuator90980±10891
A 6ABS Speed Sensor Front LH90980±11075A 7ABS Speed Sensor Front RH90980±11 075
A 8Air Fuel Ratio Sensor90980±11178
A 9Airbag Sensor Front LH90980±11856A10Airbag Sensor Front RH90980±11 856
A11A/C Evaporator Temp. Sensor90980±10825
A12A/C SW90980±10631
A13ABS ECU90980±11424
A14ABS ECU90980±11390
A15Air Vent Mode Control Servo Motor90980±11165
A16Airbag Squib (Front Passenger Airbag
Assembly)90980±11884
A17Airbag Squib (Steering Wheel Pad)90980±10850
A18Ashtray Illumination81945±33010
A19ABS Speed Sensor Rear LH90980±11060A20ABS Speed Sensor Rear RH90980±11060
B 1Brake Fluid Level Warning SW90980±11207
B 2Blower Motor90980±10903
B 3Blower Resistor90980±10976
B 4Blower SW90980±10877
B 5Buckle SW LH90980±10825
C 1Camshaft Position Sensor90980±10947C 2Crankshaft Position Sensor90980±10947
C 3Cruise Control Actuator90980±11150
C 4Center Airbag Sensor Assembly90980±11869
C 5Center Airbag Sensor Assembly90980±11872
C 6Center Airbag Sensor Assembly90980±11867
C 7Cigarette Lighter90980±10760
C 8Cigarette Lighter Illumination90980±11148
C 9Clock90980±11013
C10Combination Meter90980±11114
C11Combination Meter90080±98046
C12Combination Meter90980±11115
C13Combination SW90980±11594
C14Combination SW90980±11616
C15Combination SW90980±11672
C16Cruise Control ECU90980±11391
C17Condenser90980±10860
D 1Data Link Connector 190980±11323
D 2Data Link Connector 290980±11417
D 3Data Link Connector 390980±11665
D 4Diode (Courtesy)90980±10962D 5Diode (Dome)90980±10962
D 6Diode (Idle±Up)90980±11071
D 7Door Courtesy SW Front LH
D 8Door Courtesy SW Front RH90980±10871D 9Door Courtesy SW Rear LH90980±10871
D10Door Courtesy SW Rear RH
D11Door Key Lock and Unlock SW Front LH90980±11490D12Door Key Lock and Unlock SW Front RH90980±11490
D13Door Lock Control SW RH90980±11326
D14Door Lock Motor and Door Unlock
Detection SW Front LH
D15Door Lock Motor and Door Unlock
Detection SW Front RH
90980±11150
D16Door Lock Motor and Door Unlock
Detection SW Rear LH90980±11 150
D17Door Lock Motor and Door Unlock
Detection SW Rear RH
E 1Electronically Controlled Transmission
Solenoid90980±11156
E 2Electronically Controlled Transmission
Solenoid90980±11143
E 3Engine Coolant Temp. Sensor90980±10737
E 4Engine Control Module90980±11392
E 5Engine Control Module90980±11391
E 6Engine Control Module90980±11390
E 7Engine Control Module90980±11408
F 1Front Turn Signal Light and Parking Light
LH
90980±11020
F 2Front Turn Signal Light and Parking Light
RH90980±11020
F 3Front Wiper Motor90980±11599
F 4Fuel Pressure Sensor (Delivery Pipe)90980±10845F 5Fuel Pressure Sensor (Fuel Pipe)90980±10845
F 6Fuel Shutoff Valve (Delivery Pipe)90980±11156
F 7Fuel Shutoff Valve (Fuel Pressure
Regulator)90980±11038
F 8Fuel Temp. Sensor (Delivery Pipe)90980±10737
F 9Fusible Link Block90980±09566
F10Fusible Link Block90980±09567
F11Fusible Link Block90980±09566
F12Fusible Link Block99141±13006
F13Fusible Link Block82620±06010
F14Fusible Link Block90980±11579
F15Front Door Speaker LH90980±10825F16Front Door Speaker RH90980±10825
F17Fuel Temp. Sensor and Fuel Shutoff Valve
(Fuel Tank)90980±10795
G 1Generator90980±09213

M OVERALL ELECTRICAL WIRING DIAGRAM
9
101112
2 CAMRY CNG (
Cont' d)
ECIntake
manif oldB±YBR BR W± B
BR BR BR
STP 4A
LOCK IN 18 C
PRS 10 D
B±OW± L
MG C 21 AL±Y
A/CS 10 AR±B
LOCK 15 AR± W
NSW 6AB±W
STA 11 AGR
IGT1 20 CB
IGF 3CW±R
IGT2 19 CY±RBR
10 IG3
W± L Fr om Ignit ion Coil
and Igniter
No. 1, No. 2< 1±3>
BRTE1 15 B
NE
1 2
C 2
CRANKSHAFT
POSITION SENSOR
1 2C 1
CA MSHAF T
POSITION SENSORNE ± GE03 E0 2 E01 SPD
E04
Intake
ma n i f o l dECL
B±RBRL B±W
(
Shielded) (
Shielded)BRBR
BR A
AA
A
A J20
JUNCTION
CONNE CTOR
BR BR BR BR
TE1 E1+BL±W
To Tac hometer
[Comb. Met er]
< 17±5>To A/ C Magnetic
Clutch and Loc k
Sens or< 19±4> Fr om A/C Dual
Pressure SW< 19±4>Fr om MG CL T
Relay< 19±2>Fro m A/C SW
< 19±4> Fro m A/C SW
< 19±4> From º STARTERº
Fuse< 1±2>Fr om Park/ Neutral
Posit ion SW< 1±2>12
8 D 1
DA TA LI NK
CONNECTOR 1
3
E1
BR
ENGI NE CONT ROL MODULE
IG3 6
E ngine Control
BR
BR
BR
G L
A 8
AI R FUEL
RA TI O SE NS ORHTA F 2A
AF± 14 B
AF+ 6B 14 23
B±W (
Shielded)
HT AF±+B AF+ A
B
D
EB B±Y
C 16 A 13 C 5 C 17 C 4
BRA16 B 22 C 13 C
JUNCTION
CONNECTORJ23
TACH
A
, E 5 E 4 A B , E 6 C , E 7 D
BRBR CW± B1IG1G G
7IG1
G
9A 8A FA
FA
B±O From Stop Light SW
< 8±4>
V±W Fr om Speedomet er
[Comb. Meter]
< 17±8>G±W
2 1 12 C 2C
I 4
INJECTOR NO. 1
L B±W
(
Shielded)
2 1 11 C 1C
I 5
INJECTOR NO. 2
BR B±R
(
Shielded)
2 1 25 C 15 C
I 6
INJECTOR NO. 3
GR
(
Shielded)
2 1 24 C 14 C
I 7
INJECTOR NO. 4
WO
(
Shielded)
4IG1
IHCowl side
panel RH A AAA
A
W± B W± B
J21
J UNCTI ON CONNECTOR3IG1
BR
26 C
A A
J18
JUNCT I ON
CONNECTOR
BRBR BR
W±B BR
BREO5 #40 #40+ #30 #30+ # 10+ # 10 # 20+ # 20

1
234
1
19 CAMRY CNG
1
1F 2F 1E1
100A ALT 50A HTR1B 12K
5
3 1K
1
2 4
B±Y AM1 IG1ACC
2
I10
IGNITION SW
2
1
EBLeft r adiator
side support51
2 1
3 5
41
8 1
10A A/C
11
1 15
1 EB2
HT R REL A Y
2EB1
1 2
M1
L±R2C 9
MG CLT RELAY 10A HEATER
1W 231R1K 1
1L±B
6
HI M2 M1
LO OFF 2
3
IF Ins tr ument
panel br ac e
LH1345 3
FACE 21
B/L 87
FOOT65
F/D4 GN D FA C E B / L FOOT F/ D D EFF/D
DEF FOOT B/L
FACE
DEF 2
M
EC Intake
man i f ol d6IG3
OFF
ON10 I J2 9IJ2
D J12
JUNCTION
CONNECTOR
EB13
BR
D
To Engine Cont rol
Module< 2±10>BR± B
D
GND
To Engine Cont rol
Module< 2±10>R± W
A
IGAJ20
JUNCTI ON
CONNECTOR
7
B±G
6
B±R B±R
B± R
A
WW±B
A
B±W L±R
A
L±R L±W L±WW± B
B±WL±B W± BW± B L±B L±B
L±O L±R R±B W± B
1
L±WL
A
L±RB± L
A
L±O
L±B
3
B±W
4L±B
BR
L±B
BR BR
W± L
L±B
1A40A
AM1
BATTERYL±B
2
L±Y
L±R L±RL±B14
GB±W
L±R R±B
215
L±R R± B
12
BR
A12
A/C SW A15
AIR VENT MODE CONTROL SERVO MOTOR B 4
BLOWER SW
L±B
L±B
4
FL MAIN
3. 0W
W± BCONT ROL
CIRCUIT
Power SourceAir ConditioningF 9 F1 3, AE
F1 4,
FUSI BL E L I NK
BL OCKFB B H 7
HEATER CONTROL SW
B 3
BLOWER RESISTORJ12
JUNCTION
CONNECTOR
J30
JUNCTION
CONNECTOR
A 2
A/C MAGNETIC CLUTCH
AND LOCK SENSOR A 3
A/C DUAL PRESSURE SW
B 2
BLOWER MOTOR
W±B 2
1B±Y
B±W
J 9
JUNCTION
CONNECTOR
L±Y
To FAN NO. 3
Relay< 18±3> B± WIJ22
To Engine Contr ol
Module< 2±10> G
J 7
JUNCTION
CONNE CT OR
Fr om Engine Contr ol
Module< 2±10> W±L
B B
IJ27
To Engine
Cont rol Module
< 2±10>
A
B

G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[1MZ±FE]
A 1 A/C Condenser Fan Motor
A 2 A/C Magnetic Clutch and Lock Sensor
A 3 A/C Triple Pressure SW
(A/C Dual and Single Pressure SW)
A 4 ABS Actuator
A 5 ABS Actuator
A 6 ABS Actuator and ECU
A 7 ABS and Traction Actuator
A 8 ABS and Traction Actuator
A 9 ABS Speed Sensor Front LH
A 10 ABS Speed Sensor Front RH
A 28 Air Fuel Ratio Sensor (Bank 1 Sensor 1)
A 29 Air Fuel Ratio Sensor (Bank 2 Sensor 1)
A 30 A/C Ambient Temp. Sensor
A 31 Airbag Sensor Front LH
A 32 Airbag Sensor Front RH
B 1 Back±Up Light SW
B 2 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Crankshaft Position Sensor
C 3 Cruise Control Actuator
D 1 Data Link Connector 1
D 2 Daytime Running Light Resistor
D 3 Diode (A/C)E 1 EGR Gas Temp. Sensor
E 2 EGR Valve Position Sensor
E 3 Electronically Controlled Transmission Solenoid
E 5 Engine Coolant Temp. Sensor
E 6 Engine Hood Courtesy SW
F 1 Front Turn Signal Light and Parking Light LH
F 2 Front Turn Signal Light and Parking Light RH
F 3 Front Wiper Motor
F 4 Fusible Link Block
F 5 Fusible Link Block
F 6 Fusible Link Block
F 7 Fusible Link Block
F 8 Fusible Link Block
F 9 Fusible Link Block
G 1 Generator
G 2 Generator
H 1 Headlight LH
H 2 Headlight RH
H 3 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 4 Heated Oxygen Sensor (Bank 2 Sensor 1)
H 5 Horn (High)
H 6 Horn (Low)

G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[5S±FE]
A 1 A/C Condenser Fan Motor
A 2 A/C Magnetic Clutch and Lock Sensor
A 3 A/C Triple Pressure SW
(A/C Dual and Single Pressure SW)
A 4 ABS Actuator
A 5 ABS Actuator
A 6 ABS Actuator and ECU
A 9 ABS Speed Sensor Front LH
A 10 ABS Speed Sensor Front RH
A 11 Air Fuel Ratio Sensor
A 31 Airbag Sensor Front LH
A 32 Airbag Sensor Front RH
B 1 Back±Up Light SW
B 2 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Crankshaft Position Sensor
C 3 Cruise Control Actuator
D 1 Data Link Connector 1
D 2 Daytime Running Light ResistorE 3 Electronically Controlled Transmission Solenoid
E 4 Electronically Controlled Transmission Solenoid
E 5 Engine Coolant Temp. Sensor
E 6 Engine Hood Courtesy SW
F 1 Front Turn Signal Light and Parking Light LH
F 2 Front Turn Signal Light and Parking Light RH
F 3 Front Wiper Motor
F 4 Fusible Link Block
F 5 Fusible Link Block
F 6 Fusible Link Block
F 7 Fusible Link Block
F 8 Fusible Link Block
F 9 Fusible Link Block
G 1 Generator
G 2 Generator
H 1 Headlight LH
H 2 Headlight RH
H 3 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 5 Horn (High)
H 6 Horn (Low)

G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 12 A/C Amplifier
A 13 A/C Evaporator Temp. Sensor
A 14 A/C SW
A 15 ABS and Traction ECU
A 16 ABS and Traction ECU
A 17 ABS and Traction ECU
A 18 ABS ECU
A 19 ABS ECU
A 20 Air Vent Mode Control Servo Motor
A 22 Airbag Squib (Front Passenger Airbag Assembly)
A 23 Airbag Squib (Steering Wheel Pad)
A 24 Ashtray Illumination
A 33 A/C Blower Motor Linear Controller
A 34 A/C Control Assembly
A 35 A/C Control Assembly
A 36 A/C Room Temp. Sensor
A 37 A/C Solar Sensor
A 38 Air Inlet Control Servo Motor
A 39 Air Mix Control Servo Motor
A 40 Automatic Light Control Sensor
B 3 Blower Motor
B 4 Blower Resistor
B 5 Blower SW
B 8 Blower Resistor (Low Speed)
C 4 Cigarette Lighter
C 5 Cigarette Lighter Illumination
C 6 Clock
C 7 Clutch Start SW
C 8 Combination Meter
C 9 Combination Meter
C 10 Combination MeterC 11 Combination SW
C 12 Combination SW
C 13 Combination SW
C 14 Cruise Control Clutch SW
C 15 Cruise Control ECU
C 17 Center Airbag Sensor Assembly
C 18 Center Airbag Sensor Assembly
C 19 Center Airbag Sensor Assembly
D 4 Data Link Connector 2
D 5 Data Link Connector 3
D 6 Daytime Running Light Relay (Main)
D 7 Diode (Courtesy)
D 10 Diode (Dome)
D 11 Diode (Idle±Up)
E 7 Engine Control Module
E 8 Engine Control Module
E 9 Engine Control Module
E 10 Engine Control Module
E 11 Engine Control Module
G 3 Glove Box Light and SW
H 7 Hazard SW
H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 9 Heater Control SW
I 15 Ignition Key Cylinder Light
I 16 Ignition SW
I 17 Integration Relay
I 18 Integration Relay