1999 TOYOTA CAMRY ignition

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

RADIATOR FAN AND CONDENSER FAN
40A
AM130A
CDS
1A 61K 1
15 2311
1115 23
4 11
111 13 4252K 6
2B 22F423 14
2F 22G1 30A
RDI
2 3
1 21 2
E 2 E 32C 12G72C22H2
1B 11K 2
EA1 1
EA1 2 F 1F2D1
A 1
EB1 2
B±G B±R
B±R
B±R
W±B W±BB±R W
B±Y B±R
L G± W
W±BL±W L±W W±B
W±BR G±W
B±R L
B±R B±W
W± BW±B
W± BW±RB±R G±W1
2
A 3
A/C SINGLE
PRESSURE SW W 4
WAT ER TEMP.
SW NO. 1
R 1
RADIATOR
FAN MOTOR
A/C CONDENSER
FAN MOTOR A 1
FUSIBLE LINK
BLOCKIGNITION SW I10
FAN
NO. 1
RELAY
ENGINE
MAIN
RELAY
FROM MG CLT
RELAY
FAN
NO. 3
RELAY
FAN NO. 2 RELAY
BATTERY 100A
ALT
FL MAIN
3. 0WF F14F12 , A F 9 D 24AM1ACC
IG1
1 22 1
, 15A
ECU±IG
W±B
M M

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

(
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)

J POWER SOURCE (Current Flow Chart)
Instrument Panel J/B (See Page 22)
FuseSystemPage
5AIGN
Charging
Combination Meter
Electronically Controlled Transmission and A/T Indicator
Engine Control
SRS52
138
102
54
11 7
5ASTARTER
Combination Meter
Electronically Controlled Transmission and A/T Indicator
Engine Control
Starting and Ignition138
102
54
48
7.5AOBDEngine Control54
7.5APANEL
Cigarette Lighter and Clock
Combination Meter
Illumination126
138
80
7.5ARAD±NO.2Radio and Player136
7.5ATURNTurn Signal and Hazard Warning Light72
10AGAUGE
ABS
Back±Up Light
Charging
Combination Meter
Cruise Control
Door Lock Control
Electronically Controlled Transmission and A/T Indicator
Engine Control
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Power Window
Stop Light
Taillight11 2
88
52
138
108
98
102
54
128
68
94
74
84
10AHEATERAir Conditioning
Rear Window Defogger and Mirror Heater148
134
10AMIRROR±HEATEREngine Control
Rear Window Defogger and Mirror Heater54
134
10ATAILEngine Control
Taillight54
84
15ACIG
Cigarette Lighter and Clock
Remote Control Mirror
Shift Lock
SRS126
132
122
11 7
15AECU±IG
ABS
Cruise Control
Radiator Fan and Condenser Fan
Shift Lock11 2
108
144
122
*These are the page numbers of the first page on which the related system is shown.

J
FuseSystemPage
15APOWER±OUTLETPower Outlet130
15ASTOP
ABS
Cruise Control
Electronically Controlled Transmission and A/T Indicator
Engine Control
Shift Lock
Stop Light11 2
108
102
54
122
74
25ADOOR
Door Lock Control
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Power Window98
76
128
68
94
25AWIPERWiper and Washer90
30APOWERDoor Lock Control
Power Window98
94
40AAM1Charging
Radiator Fan and Condenser Fan52
144
40ADEFRear Window Defogger and Mirror Heater134
Engine Room J/B No.2 (See Page 24)
FuseSystemPage
5AALT±SCharging52
7.5ADOME
Cigarette Lighter and Clock
Combination Meter
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off126
138
76
128
68
10AECU±BCombination Meter
SRS66
68
10AHAZARDTurn Signal and Hazard Warning Light48
10AHORNHorn52
15AHEAD (LH)Headlight144
15AHEAD (RH)Headlight144
20AEFIElectronically Controlled Transmission and A/T Indicator
Engine Control102
54
20ARADIO NO.1Radio and Player48
30AAM2
Charging
Electronically Controlled Transmission and A/T Indicator
Engine Control
Starting and Ignition136
102
54
66
30ACDSRadiator Fan and Condenser Fan66
30ARDIRadiator Fan and Condenser Fan138
*These are the page numbers of the first page on which the related system is shown.

J POWER SOURCE (Current Flow Chart)
FuseSystemPage
40AMAIN
Headlight
Light Auto Turn Off
Starting and Ignition124
11 7
72
Engine Room R/B No.1 (See Page 26)
FuseSystemPage
10AA/CAir Conditioning148
Engine Room R/B No.3 (See Page 26)
FuseSystemPage
60AFL ABSABS11 2
Fusible Link Block (F8 on See Page 27)
FuseSystemPage
50AHTRAir Conditioning148
100AALT
Charging
Illumination
Light Auto Turn Off
Radiator Fan and Condenser Fan
Taillight52
80
68
144
84
*These are the page numbers of the first page on which the related system is shown.