1999 TOYOTA CAMRY oil pressure

FROM POWER SOURCE SYSTEM (
SEE PAGE 44)
1C 91J11
1 2
2 1
IJ2 7
IJ2 9IG3 10 IG2 1
1 I 4 I 4
A 10 A 15A 21 D10 C18 B 10B 12 B 15 C4C17 C5D3
2 1B 8
2 A
B 12 3
A
1 3
2 5 1
BR
B±YBR B±Y
BR
BR
BR
B±Y TE1
B± LL±R L±W BR
W± L W±L W± LG L±Y
G L±Y R±BR±B R±W
R±BL±W
B± R
BR
L
B±W
G± O G± O
B±YB±Y
BR
E1 +B
10A TAIL
10A
MIRROR±
HEATER (
SHIELDED)
(
SHIELDED) L
B±R
DIODE
(
IDLE±UP)
DATA LINK
CONNECTOR 1
CRANKSHAFT
POSITION SENSOR
CAMSHAFT
POSITION SENSOR
JUNCTION
CONNECTORD 1
C 2
C 1
J12
D 6
JUNCTION CONNECTOR
A/C SWHEATER CONTROL SW
POWER STEERING OIL PRESSURE SWFROM MG
CLT RELAY
FROM
A/C DUAL
PRESSURE SW
TO A/C
MAGNETIC
CLUTCH AND
LOCK SENSORJ12
P 2 H 7
A12
BR
ENGINE CONTROL MODULEB E 4 E 5ACE 6 , , D, E 7
IG1 8D 12
LL JUNCTION
CONNECTOR J 8
C 5
CENTER AIRBAG
SENSOR ASSEMBLYIG1 9
B± R
A A
4
L
TE1 NE NE± G EL S
LOCK A/CS F/PS MGC PRS LOCK IN THRPSW
A/C EVAPORATOR
TEMP. SENSOR A11
B
IG1 1

5A
STARTER FROM POWER SOURCE SYSTEM (
SEE PAGE 44)
1J 3
IH1 5IC2 5 IE2 5IF117 IE23
IJ2 3B 2
B 5C10 A4C4C11 A3B7A12
EBB C
A B
IE1 6
11
IE1 7
2 1
IF
B±W Y±B Y±B
O O
R±W
R±L
P±L
Y±G P±L P±L W±B
Y±G
R±W R±W R±W
R±W W±B
B±W
PARK/NEUTRAL
POSITION SW P 1
OIL PRESSURE
SW O 1
WASHER LEVEL
WARNING SW W 1
JUNCTION
CONNECTOR J 1
BRAKE FLUID
LEVEL WARNING SW B 1
JUNCTION
CONNECTOR J 9
G±O
B
5
B 6
2B B
B
OI L
CRUISE
SEAT BELT
ABS
WASHER LEVEL
REAR LIGHTS
BRAKE
BULB
CHECK
RELAY
O/ D OFF
JUNCTION
CONNECTOR J22
P
N
A
TO CRUISE
CONTROL ECU
TO I NTEGRATION
RELAY
TO ABS ECU
TO LI GHT
FAI LURE
SENSOR
B±O
TO O/ D
MAIN SW
J 6
JUNCTION
CONNECTORB A, J 7
C10
COMBINATION METERB A, C11 C, C12
GR
IG211
IG210 B±W
GRGR
1
R±W
PARKING
BRAKE SW P 3

COMBINATION METER
B1 BRAKE FLUID LEVEL WARNING SW
1±2 : Closed with the float down
C10 (A), C11 (B), C12 (C)
COMBINATION METER
(B) 2±GROUND : Approx. 12 volts with the ignition SW at ST position and the shift lever at P or N position
(A) 13, (C) 7±GROUND : Approx. 12 volts with the ignition SW at ON or ST position
(B)11, (B) 12±GROUND: Always approx. 12 volts
(A) 2, (B) 9, (B) 16, (C) 5±GROUND : Always continuity
O1 OIL PRESSURE SW
1±GROUND : Closed with the oil pressure above approx. 19.6 kpa (2.8 psi, 0.2 kgf/cm
2)
P3 PARKING BRAKE SW
1±GROUND : Closed with the parking brake lever pulled up
W3 WATER TEMP. SENDER
1±GROUND : Approx. 160±240 W (50°C, 122°F)
Approx. 17.1±21.2 W (120°C, 248°F)
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B128J6A31O129
C10A30J7B31P129
C11B30J931P331
C12C30J1531R631
D530J1631V129
E730J1931W129
J131J2231W329
J331J2431
J431J2831
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1D22Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1G22Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1T22Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1W22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2J24Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC236Floor Wire and Instrument Panel Wire (Left Kick Panel)
IE136Instrument Panel Wire and Cowl Wire (Lower Finish Panel)IE236Instrument Panel Wire and Cowl Wire (Lower Finish Panel)
IF136Instrument Panel Wire and Cowl Wire (Under the Blower Motor)
IG138Engine Wire and Cowl Wire (Under the Blower Motor)IG238Engine Wire and Cowl Wire (Under the Blower Motor)
IH138Engine Wire and Instrument Panel Wire (Under the Blower Motor)
IJ238Engine Room Main Wire and Cowl Wire (Right Kick Panel)
SERVICE HINTS

FAN MOTOR OPERATION
With the ignition SW turned on, the current through the ECU±IG fuse flows to the FAN NO.1 relay (Coil side), FAN NO.2 relay
(Coil side). furthermore, the current through the FAN NO.1 relay (Coil side) or the FAN NO.2 relay (Coil side) flows to
TERMINAL 3 of the A/C single pressure SW to TERMINAL 2 to TERMINAL 2 of the water temp. SW no.1 to TERMINAL 1 to
GROUND, causing the FAN NO.1 relay to turn off and the FAN NO.2 relay to turn on.
1. LOW SPEED OPERATION
When the ignition SW is turned on and the A/C system is activated, the A/C condenser fan motor and the radiator fan motor
rotates at low speed.
When the A/C system is activated, the current from MG CLT relay flows to the FAN NO.3 relay (Coil side) to GROUND,
causing the FAN NO.3 relay to turn on. As a result, the current through the CDS fuse flows to TERMINAL 2 of the A/C
condenser fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 5 to TERMINAL 5 of the FAN
NO.3 relay to TERMINAL 3 to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND.
2. HIGH SPEED OPERATION
Only when the A/C single pressure SW is turned off or the water temp. SW no.1 is turned off, the A/C condenser fan motor
and the radiator fan motor rotate at high speed.
When the A/C single pressure SW is turned off or the water temp. SW no.1 is turned off. the current from the RDI fuse flows
to the FAN NO.1 relay (Point side) to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND. At the same time,
the current from the CDS fuse flows to TERMINAL 2 of the A/C condenser fan motor to TERMINAL 1 to TERMINAL 3 of the
FAN NO.2 relay to TERMINAL 4 to GROUND.
A3 A/C SINGLE PRESSURE SW
3±2 : Open above approx. 15.5 kgf/cm2
(220 psi, 1520 kpa)
Closed below approx. 12.5 kgf/cm2 (177 psi, 1225 kpa)
W4 WATER TEMP. SW NO.1
2±1 : Open above approx. 95°C (203° F)
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A128F12D28R129
A328F14F28W429
F9A28I1030
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
126Engine Room R/B No.1 (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A
1B22Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K
()
2B
2C
2F24Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2G
gg(g)
2H
2K24Cowl Wire and Engine Room J/B No.2 (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA134Engine Room Main Wire and Engine Room Main No.3 Wire (Radiator LH)
SYSTEM OUTLINE
SERVICE HINTS

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

L
CodePart Name Part NumberCodePart Name Part Number
G 2Generator90980±11349
G 3Glove Box Light and SW90980±11098
H 1Headlight LH90980±11314H 2Headlight RH90980±11314
H 3Horn (High)90980±10619H 4Horn (Low)90980±10619
H 5Hazard SW90980±10801
H 6Heated Oxygen Sensor90980±11028
H 7Heater Control SW90980±10799
H 8High Mounted Stop Light90980±11148
I 1Idle Air Control Valve90980±11145
I 2Ignition Coil and Igniter No.190980±11150I 3Ignition Coil and Igniter No.290980±11 150
I 4Injector No.1
I 5Injector No.290980±11153I 6Injector No.390980±11 153
I 7Injector No.4
I 8Intake Air Temp. Sensor90980±11163
I 9Ignition Key Cylinder Light90980±10906
I10Ignition SW90980±11615
I11Integration Relay90980±11107
I12Integration Relay90980±11542
I13Interior Light90980±10121
J 1Junction Connector90980±10803
J 2Junction Connector90980±11542
J 3Junction Connector90980±10803
J 4Junction Connector90980±11542
J 5Junction Connector90980±11502
J 6Junction Connector90980±11661J 7Junction Connector90980±11661
J 8Junction Connector90980±11398
J 9Junction Connector90980±10976
J10Junction Connector90980±11661J11Junction Connector90980±11661
J12Junction Connector90980±10803
J13Junction Connector90980±11661J14Junction Connector90980±11661
J15Junction Connector90980±10803
J16Junction Connector90980±11661J17Junction Connector90980±11661
J18Junction Connector90980±11542J19Junction Connector90980±11542
J20Junction Connector90980±11539
J21Junction Connector90980±11529
J22Junction Connector90980±11502
J23Junction Connector
J24Junction Connector90980±11661J25Junction Connector90980±11661
J26Junction Connector
J27Junction Connector90980±11542
J28Junction Connector90980±11661J29Junction Connector90980±11661
J30Junction Connector90980±10803
J31Junction Connector90980±11661J32Junction Connector90980±11661
J33Junction Connector90980±10803
J34Junction Connector90980±10976
J35Junction Connector90980±10803
K 1Key Interlock Solenoid90980±10825
L 1License Plate Light LH90980±11148L 2License Plate Light RH90980±11148
L 3Light Failure Sensor90980±10803
L 4Luggage Compartment Light90980±11148
L 5Luggage Compartment Light SW90980±11097
M 1Manifold Absolute Pressure Sensor90980±10845
N 1Noise Filter (Ignition)90980±10843
N 2Noise Filter (Rear Window Defogger)90980±11259
O 1Oil Pressure SW90980±11363
O 2O/D Main SW and A/T Shift Lever
Illumination90980±10795
P 1Park/Neutral Position SW,A/T Indicator Light
SW and Back±Up Light SW90980±11332
P 2Power Steering Oil Pressure SW90980±11428
P 3Parking Brake SW90980±10871
P 4Power Outlet90980±10760
P 5Power Window Control SW Front RH90980±10789
P 6Power Window Control SW Rear LH90980±10631P 7Power Window Control SW Rear RH90980±10631
P 8Power Window Master SW and Door Lock
Control SW LH90980±10807
P 9Power Window Motor Front LH
P10Power Window Motor Front RH90980±10860P11Power Window Motor Rear LH90980±10860
P12Power Window Motor Rear RH
P13Pretensioner LH90980±11862P14Pretensioner RH90980±11862
R 1Radiator Fan Motor90980±10928
R 2Radio and Player90980±10996
R 3Radio and Player90980±10997
R 4Rear Window Defogger SW90980±11280
R 5Remote Control Mirror SW90980±11450

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

M
5
678
17 CAMRY CNG (
Cont' d)
B 11
7
C
13
C
6
B
3
B
5
C
2
A
1
A R±L
BR
BR
IH13
IH16
IH12
IH178
C
C6
15
B Y± G
P
LR± L
Y± R
G± W
BR
BR
Y±G
B±O
P
L
4
A4
C2
C 11
C2
B4
B3
A7
B
IF117
IJ23
2 1
EBLeft radiator
s ide s upport A
IFInstrument
panel brace
LH 2 1IE23
IE16
IE1 76
A
11
A
7
A
8
A 10
A
9
A
10
B
12
A
13
B 12
B 10
C9
B8
B5
B 16
B 13
A1
C1
B 14
B 12
C L
TURN LH2
CHARGED
BRAKEN
BULB
CHE CK
RE L AYR
WASHER LEVELP
MAL FUNCT I ON I NDI CA TOR
LAMP
ABS
SEAT BELTDOOR
RE AR LI GHTSO/ D OFF
OIL FUEL
TURN RH
W± B
CRUISE
SRS (
*1) FUEL
TRIP METER
ODOMETER
TACHOMETER
HIGH BEAM
R± W
See Illumination
Sys tem< 7±4>
R±W
W± B R±WW± B
R± W R±W
B±O
P±L P±L P±L J 1
JUNCTION
CONNE CTOR
B
BB
B 1
BRAKE FLUID LEVEL
WARNI NG SWP 3
PARKI NG BRAKE SW
J 9
JUNCTION
CONNECTOR
W 1
WASHER LEVEL
WARNING SW
See Engine Contr ol
Syst em< 2±2>
See Key Reminder and Seat Belt
War ning Sys tem< 16±3>See ABS System< 15±2>See Char ging
System< 1±4> See Taillight
System< 8±3>WA TE R
TEMP.
ILLUMINATIONSee Electr onic ally Contr olled
Tr ans miss ion and A/T
Indicat or Sys tem
<3±3><3±4>
See Turn Signal and
Hazar d War ning Light
System< 5±3>
See Headlight
System< 4±4>
See SRS System
< 14±4> See Interior Light
System< 6±4>
See Electronically Controlled
Transmiss ion and A/T Indicator
System< 3±3>
See Illumination Syst em
< 7±4>
IF13
V± W V±W
V±W V±WB
BTo Cruis e Contr ol
ECU< 13±4>
J15
JUNCTION
CONNECTOR
To Engine Control
Module< 2±10> < 3±3>
IH15
O 1
OI L PRESSURE SW
1
See Cr uise Control
System< 13±2> Y±B Y±B
Left kick
panelIE
J 4
JUNCTION
CONNECTOR
W± B W± B
A A See Charging Sys tem
< 1±4> A* 1 : Speedometer
B
C
D
E
FIF16
1
C ombination M eter
B±O From Engine
Control Module
< 2±10>
C10 C11,
COMBINATION METERABC12, C From Park/Neutral
Pos ition SW< 1±2>GR See Inter ior Light
Syst em< 6±4>
To Engine Control
Module< 2±7>
B