1999 TOYOTA CAMRY relay

With the ignition SW turned on, the current flows to TERMINAL 7 of the integration relay through GAUGE fuse.
Voltage is applied at all times to TERMINAL (C) 2 of the integration relay through the taillight relay coil side, and to
TERMINAL (C) 3 through the HEAD relay coil side (w/o daytime running light) or through the daytime running light relay
(Main) (w/ daytime running light).
1. NORMAL LIGHTING OPERATION

With the light control SW turned to TAIL position, a signal is input into TERMINAL (C) 1 of the integration relay. Due to this
signal, the current flowing to TERMINAL (C) 2 of the relay flows to TERMINAL (C) 1 to TERMINAL 14 of the light control SW
to TERMINAL 16 to GROUND, and taillight relay causes taillights to turn on.

With the light control SW turned to HEAD position, a signal is input into TERMINALS (C) 1 and (C) 4 of the integration relay.
Due to this signal, the current flowing to TERMINAL (C) 3 of the relay flows to TERMINAL (C) 4 to TERMINAL 13 of the light
control SW to TERMINAL 16 to GROUND in the headlight circuit, and causes taillight and HEAD relay to turn the lights on.
The taillight circuit is same as above.
2. LIGHT AUTO TURN OFF OPERATION
With light on and ignition SW turned off (Input signal goes to TERMINAL 7 of the relay), when the driver's door is opened
(Input signal goes to TERMINAL 6 of the relay), the relay operates and the current is cut off which flows from TERMINAL (C)
2 of the relay to TERMINAL (C) 1 In taillight circuit and from TERMINAL (C) 3 to TERMINAL (C) 4 in headlight circuit.
As a result, all lights are turned off automatically.
HEAD RELAY [ENGINE ROOM J/B NO.2]
2±1 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position
Closed with the engine running and the parking brake lever released (w/ daytime running light)
TAILLIGHT RELAY [INSTRUMENT PANEL J/B]
3±5 : Closed with the light control SW at TAIL or HEAD position
D12 DOOR COURTESY SW FRONT LH
1±GROUND : Continuity with the front LH door open
I17 (C)
INTEGRATION RELAY
7±GROUND : Approx. 12 volts with the ignition SW at ON position
6±GROUND : Continuity with the front LH door open
1±GROUND : Always approx. 12 volts
10±GROUND : Always continuity
(C) 2±GROUND : Always approx. 12 volts
(C) 3±GROUND : Always approx. 12 volts
(C) 4±GROUND : Continuity with the light control SW at HEAD position
(C) 1±GROUND : Continuity with the light control SW at TAIL or HEAD position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C1330F6C26 (1MZ±FE)J231
D6A30F6C28 (5S±FE)J731D6B30F9F26 (1MZ±FE)J1131
D1232F9F28 (5S±FE)J3231
F4A26 (1MZ±FE)I17C30F4A28 (5S±FE)J131
SYSTEM OUTLINE
SERVICE HINTS

2 1
10 11
1111 1W 11F51S91G81M21M11F21H11 1F61S12 1G41S7 1J 7
A 8
B DA E A E
IN2 8IN26 2 1 126 10
R±W R±W R R R W± B
R±W
G±R
R±W R
R
R±Y
R
G± R
R±W
R±W
R±W
R±W
R±W
R±G
R±G R±G
R±G R±GR±W R±W
R±G R±W
E EINTEGRATION RELAYA
JUNCTION
CONNECTOR
I15
IGNITION KEY
CYLINDER LIGHTJUNCTION
CONNECTOR
OPEN DOOR
WARNING LIGHT
[COMB. METER]
DIODE
(
COURTESY) J16
C 9
D 7(
W/ FADE OUT)
(
W/O FADE OUT)
(
W/ FADE OUT)
(
W/O FADE OUT)
DOOR COURTESY SW
FRONT LH
DOOR COURTESY SW
FRONT RH DOOR COURTESY SW
REAR RH DOOR COURTESY SW
REAR LH D14
D15
D12
D13
* 1 : W/ MOON ROOF
* 2 : W/ O MOON ROOF
4
R2 1
DIODE
(
DOME) D10
AA D
A D
A DB 6(
*3)
(
*4) B , * 3 : W/O THEFT DETERRENT SYSTEM
* 4 : W/ THEFT DETERRENT SYSTEM
J3 3
JUNCTION
CONNECTORB A, J34
I18
J33

INTERIOR LIGHT
I18 (A), (B) INTEGRATION RELAY
1±GROUND : Always approx. 12 volts
4±GROUND : Continuity with the one of each door (Front LH, RH, rear LH and RH) open
6±GROUND : Continuity with the front LH door open
10±GROUND : Always continuity
D12, D13, D14, D15 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH
1±GROUND : Closed with the door open
L6 LUGGAGE COMPARTMENT LIGHT SW
1±GROUND : Closed with the luggage compartment door open
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C930F4A28 (5S±FE)J33A31
C1632F6C26 (1MZ±FE)J34B31
D730F6C28 (5S±FE)L332
D1030I1530L532
D1232I18A30L632
D1332I18B30P533
D1432I1932V833
D1532J1131V933
F4A26 (1MZ±FE)J1631
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1F20Roof Wire and Instrument Panel J/B (Lower Finish Panel)
1G20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1H20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1M20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1S20Floor Wire and Instrument Panel J/B (Lower Finish Panel)
1V20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1W20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2A22Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2J22Cowl 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)
IN242Floor No.2 Wire and Instrument Panel Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
IE40Cowl Side Panel LH
IG40Instrument Panel Brace LH
BM44Roof Left
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
B144Roof WireB344Roof Wire
B244Roof WireB544Floor Wire
SERVICE HINTS

ILLUMINATION
1B 41C61J4
IG1H 41V 61 2
3 4
7 6
2 1
1614 2G
B
G±R B± G
G
B
B
B B
TAILLIGHT
RELAY7. 5A
PANEL
INTEGRATION
RELAY
FL MAIN
3. 0W
BA TTERY
OFF
TAI L
HEAD
LIGHT
CONTROL
SW
G
I17 3 2 15
F 1
A 1100A ALT
2 6A BA B
B BB B B B B B B B
B ABABABA
A AAA A A
1J 8
1J 7 A
A E 3
F 2A
1 A
B±R B±R
B±R
G±R
COMBINATION SW C13
A
W±B
W± B W± B
J UNCTION
CONNECTOR J 7
JUNCTION
CONNECTOR J11
B
B BG
G G
G G
G G
G G
JUNCTION
CONNECTOR J 2
B
ASHTRAY ILLUMINATION A24BLOWER SW B 5A/C SW A14 CIGARETTE LIGHTER ILLUMINATION C 5REAR WINDOW
DEFOGGER S W R 5
G 1D 5
G
J13
JUNCTION CONNECTORB A, J14
J13
JUNCTION
CONNECTORB A, J14 17 16 G±R
(
*5)
G±Y
(
*5)
(
*6)
DAYTIME RUNNING
LIGHT RELAY (
MAIN) D 6
(
*4) (
*4)
(
*4)
(
*4)(
*4) (
*4) F 4
FUSIBLE LINK BLOCKF A, F 9
2 12A/C CONTROL ASSEMBLY A34
G
(
*3) B
(
*3)

ILLUMINATION
TAILLIGHT RELAY [INSTRUMENT PANEL J/B]
5±3 : Closed with the light control SW at TAIL or HEAD position
C13 COMBINATION SW
14±16 : Closed with the light control SW at TAIL or HEAD position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A1430F9F28 (5S±FE)J17B31
A2430G330J30A31
A3430H730J31B31
B530I730O231
C530J231R2B31
C1030J531R3A31
C1330J731R4C31
D630J1131R531
F4A26 (1MZ±FE)J13A31R731F4A28 (5S±FE)J14B31
F9F26 (1MZ±FE)J16A31
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1C20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1D20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1H20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1V20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IH140Instrument Panel Wire and Instrument Panel No 2 Wire (Instrument Panel Brace RH)IH240Instrument Panel Wire and Instrument Panel No.2 Wire (Instrument Panel Brace RH)
: GROUND POINTS
CodeSee PageGround Points Location
IF40Left Kick Panel
IG40Instrument Panel Brace LH
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E336 (1MZ±FE)Cowl WireE338 (5S±FE)Cowl Wire
SERVICE HINTS

TAILLIGHT
2 1
2 1
1 2
1 2
IG EB 23 15
10A
TAI L
1C 61C91S8 1B 4
1J 71J 8
B 9 B 8 E 3B 5
A A
B CBC
A 1F 1F2
16 1
A 142A
A
W±B W±BW±B G
GGGG±O G±OG± RB±R B±R
B±R B±G
W±B W±B W±B
W±BG±O
G±O
TAILLIGHT
RELAY
INTEGRATION RELAY
JUNCTION
CONNECTOR
FRONT PARKING LIGHT LH
FRONT PARKING LIGHT RH
LICENSE PLATE LIGHT LH
LICENSE PLATE LIGHT RHI17
J12
F 1
F 2
L 1
L 2
OFF
TAI L
HEAD
LIGHT
CONTROL SWFUSIBLE LINK BLOCK
100A
ALT
FL MA IN
3. 0W
BATTERY
JUNCTION
CONNECTOR JUNCTION
CONNECTOR COMB INATION SW C13
J 7
J11G
W±B
G
A
A
W±B
E 4
W±B
W±B
A A
G±R
JUNCTION
CONNECTOR J 2
F F 4 A , F 9
J35
JUNCTION CONNECTORB A, J36 17 16 G±R
(
*1)
G±Y
(
*1)
DAYTIME RUNNING
LIGHT RELAY (
MAIN) D 6(
*2)
B 8 GG
(
*3)

TAILLIGHT
When the light control SW is turned to TAIL or HEAD position. The current flows to TERMINAL 3 of the light failure sensor
through the TAIL fuse.
When the ignition SW is turned on, the current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and
also flows through the rear lights warning light to TERMINAL 4 of the light failure sensor.
TAILLIGHT DISCONNECTION WARNING
With the ignition SW on and the light control SW turned to TAIL or HEAD position, if the taillight circuit is open, the light failure
sensor detects the failure by the change in current flowing from TERMINAL 3 of the light failure sensor to TERMINAL 9, and
the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear
lights warning light on, which remains on until the light control SW is turned off
TAILLIGHT RELAY [INSTRUMENT PANEL J/B]
5±3 : Closed with the light control SW at TAIL or HEAD position
L3 LIGHT FAILURE SENSOR
4, 8±GROUND : Approx. 12 volts with the ignition SW at ON position
3±GROUND : Approx. 12 volts with the light control SW at TAIL or HEAD position
11±GROUND : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C8A30F9F26 (1MZ±FE)J4032
C10C30F9F28 (5S±FE)L132
C1330I1730L232
D630J231L332
F126 (1MZ±FE)J431R833F128 (5S±FE)J731L933
F226 (1MZ±FE)J1131R1033F228 (5S±FE)J1231R1133
F4A26 (1MZ±FE)J35A31F4A28 (5S±FE)J36B31
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1C20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1D20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1S20Floor Wire and Instrument Panel J/B (Lower Finish Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IF240Floor Wire and Instrument Panel Wire (Left Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EB36 (1MZ±FE)Left Radiator Side SupportEB38 (5S±FE)Left Radiator Side Support
IG40Instrument Panel Brace LH
BL44Under the Left Center Pillar
BP44Back Panel Center
SYSTEM OUTLINE
SERVICE HINTS

With the ignition SW turned on, the current flows to TERMINAL 17 of the wiper and washer SW, TERMINAL 2 of the washer
motor and TERMINAL 2 of the front wiper motor through the WIPER fuse.
1. LOW SPEED POSITION
With the wiper and washer SW turned to LO position, the current flows from TERMINAL 17 of the wiper and washer SW to
TERMINAL 7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to GROUND and causes the front wiper motor to run
at low speed.
2. HIGH SPEED POSITION
With the wiper and washer SW turned to HI position, the current flows from TERMINAL 17 of the wiper and washer SW to
TERMINAL 8 to TERMINAL 3 of the front wiper motor to TERMINAL 4 to GROUND and causes the front wiper motor to run
at high speed.
3. INT POSITION
With the wiper and washer SW turned to INT position, the wiper relay operates and current flows from TERMINAL 17 of the
wiper and washer SW to TERMINAL 2 to GROUND. This activates the intermittent circuit and the current flows from
TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to
GROUND and the wiper operates. Intermittent operation is controlled by a condenser charge and discharge function in the
relay.
4. WASHER CONTINUOUS OPERATION
With the wiper and washer SW pulled to WASHER position (Washer SW ON position), the current flows from the WIPER
fuse to TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 11 of the wiper and washer SW to TERMINAL 2 to
GROUND and causes the washer motor to run and the window washer to spray. Simultaneously, current flows from the
WIPER fuse to TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor to
TERMINAL 4 to GROUND, causing the wiper to function.
C11 WIPER AND WASHER SW [COMB. SW]
2±GROUND : Always continuity
17±GROUND : Approx. 12 volts with the ignition SW at ON position
7±GROUND : Approx. 12 volts with the ignition SW on and the wiper and washer SW at LO position
Approx. 12 volts every approx. 1 to 10 seconds intermittently with the ignition SW on
and the wiper and washer SW at INT position
16±GROUND : Approx. 12 volts with the ignition SW on and unless the front wiper motor at STOP position
8±GROUND : Approx. 12 volts with the ignition SW on and the wiper and washer SW at HI position
F3 FRONT WIPER MOTOR
1±2 : Closed unless the front wiper motor at STOP position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C1130J1131J36B31
F326 (1MZ±FE)J1531W227 (1MZ±FE)F328 (5S±FE)J35A31W229 (5S±FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1C20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2F22Engine Room Main Wire and Engine Room J/B No.2 (Engine Compartment Left)
2J22Cowl 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)
IK142Engine Room Main Wire and Cowl Wire (Right Kick Panel)
SYSTEM OUTLINE
SERVICE HINTS