TOYOTA CAMRY 1999 Service Repair Manual

N20138
Wire harness side:
Wire harness side:
13 12 11 10 84
795
6 123
1234
Connector ºAº
Connector ºBº BE±20
± BODY ELECTRICALIGNITION SWITCH AND KEY UNLOCK WARNING
SWITCH
2240 Author: Date:
Tester connectionConditionSpecified condition
2 ± GroundAll door courtesy switches OFF (Except Driver's
Door/ Door closed)No continuity
2 ± GroundOne of the door courtesy switches ON (Except
Driver's Door/ Door opened)Continuity
4 ± GroundDoor courtesy switches except that of the driver's
door OFF (Door closed)No continuity
4 ± GroundOne of the door courtesy switches except that of
the driver's door ON (Door opened)Continuity
5 ± GroundKey unlock warning switch OFFNo continuity
5 ± GroundKey unlock warning switch ONContinuity
6 ± GroundDriver's door courtesy switch OFF (Door closed)No continuity
6 ± GroundDriver's door courtesy switch ON (Door opened)Continuity
8 ± GroundBuckle switch OFF (Seat belt unfastened)No continuity
8 ± GroundBuckle switch ON (Seat belt fastened)Continuity
10 ± GroundConstantContinuity
1 ± GroundConstantBattery positive voltage
7 ± Ground
9 ± GroundIgnition switch LOCK or ACCNo voltage
7 ± Ground
9 ± GroundIgnition switch ONBattery positive voltage
11 ± GroundIgnition switch LOCKNo voltage
11 ± GroundIgnition switch ACC or ONBattery positive voltage
(b) Disconnect the connector from the integration relay and
inspect the connectors on the wire harness side.

± BODY ELECTRICALIGNITION SWITCH AND KEY UNLOCK WARNING
SWITCHBE±21
2241 Author: Date:
Tester connectionConditionSpecified condition
A1 ± GroundDoor lock manual switch OFF or UNLOCKNo continuity
A1 ± GroundDoor lock manual switch LOCKContinuity
A2 ± GroundDoor lock manual switch OFF or LOCKNo continuity
A2 ± GroundDoor lock manual switch UNLOCKContinuity
A3 ± GroundDriver's and passenger's door key lock and
unlock switch OFF or UNLOCKNo continuity
A3 ± GroundDriver's or passenger's door key lock and unlock
switch LOCKContinuity
A4 ± GroundDriver's door key lock and unlock switch OFF or
LOCKNo continuity
A4 ± GroundDriver's door key lock and unlock switch
UNLOCKContinuity
A5 ± GroundPassenger's door key lock and unlock switch
OFF or LOCKNo continuity
A5 ± GroundPassenger's door key lock and unlock switch
UNLOCKContinuity
A6 ± A7ConstantContinuity
A8 ± GroundPassenger's door courtesy switch OFF (Door
closed)No continuity
A8 ± GroundPassenger's door courtesy switch ON (Door
opened)Continuity
A9 ± GroundDriver's door unlock detection switch OFF (Door
closed)No continuity
A9 ± GroundDriver's door unlock detection switch ON (Door
opened)Continuity
A10 ± GroundPassenger's door unlock detection switch OFF
(Door closed)No continuity
A10 ± GroundPassenger's door unlock detection switch ON
(Door opened)Continuity
A11 ± GroundRear door unlock detection switch OFF (Door
closed)No continuity
A11 ± GroundRear door unlock detection switch ON (Door
opened)Continuity
A12 ± GroundConstantContinuity
A13 ± GroundConstantBattery positive voltage
B1 ± GroundLight control switch OFFNo voltage
B1 ± GroundLight control switch TAIL or HEADBattery positive voltage
B4 ± GroundLight control switch OFF or TAILNo voltage
B4 ± GroundLight control switch HEADBattery positive voltage
B2 ± Ground
B3 ± GroundConstantBattery positive voltage
If the circuit is as specified, try replacing the relay with a new
one.
If the circuit is not as specified, inspect the circuits connected
to other parts.

BE0A4±02
I08436
Daytime ResisterE/G Room J/B No.2

HEAD LH Fuse (USA)

HEAD RH Fuse (USA)

HEAD LH (UPR) Fuse (CANADA)

HEAD RH (UPR) Fuse (CANADA)

DOME Fuse

ECU±B Fuse

Headlight Control Relay
E/G Room R/B No.2 (CANADA)

HEAD LH (LWR) Fuse

HEAD RH (LWR) Fuse

DRL No.2 Fuse

Daytime Running Light Relay No.4
Headlight
Instrument Panel J/B No.1

GAUGE Fuse

TAIL Fuse

Taillight Control Relay

Integration Relay
Daytime Running
Light RelayIgnition Switch
Combination Switch

Light Control Switch

Headlight Dimmer Switch
Door Courtesy Switch
Light Failure Sensor
Taillight
Automatic Light
Control Sensor
BE±22
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2242 Author: Date:
HEADLIGHT AND TAILLIGHT SYSTEM
LOCATION

BE0A5±02
N18012
Combination Switch

Light Control Switch

Headlight Dimmer Switch
Switch Body
Combination Switch

Wiper and Washer Switch Spiral Cable
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±23
2243 Author: Date:
COMPONENTS

BE10D±01
N20149
HEADHi beam
TAIL
OFF
Flash
87
17 1614
13
Z08521
1
2
341 2
43
N14863
12
35
12 35
Z08523
1
2
341 2
43 BE±24
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2244 Author: Date:
INSPECTION
1. INSPECT LIGHT CONTROL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF±No continuity
TAIL14 ± 16Continuity
HEAD13 ± 14 ± 16Continuity
If continuity is not as specified, replace the switch.
2. INSPECT HEADLIGHT DIMMER SWITCH CONTINU-
ITY
Switch positionTester connectionSpecified condition
Low beam16 ± 17Continuity
High beam7 ± 16Continuity
Flash7 ± 8 ± 16Continuity
If continuity is not as specified, replace the switch.
3. INSPECT HEADLIGHT CONTROL RELAY CONTINU-
ITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Apply B+ between
terminals 1 and 2.3 ± 4Continuity
If continuity is not as specified, replace the relay.
4. INSPECT TAILLIGHT CONTROL RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
5. INSPECT HEADLIGHT DIMMER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 4, 2 ± 4Continuity
Apply B+ between
terminals 2 and 4.3 ± 4Continuity
If continuity is not as specified, replace the relay.

I08219
Wire harness side:
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±25
2245 Author: Date:
6. INSPECT DAYTIME RUNNING LIGHT RELAY (MAIN)
CIRCUIT
Disconnect the connector from the relay and inspect the con-
nector on the wire harness side.
Tester connectionConditionSpecified condition
2 ± GroundLight control switch position OFF or TAILNo continuity
2 ± GroundLight control switch position HEADContinuity
3 ± GroundHeadlight dimmer switch position
Low beamNo continuity
3 ± GroundHeadlight dimmer switch position
High beam of FlashContinuity
4 ± GroundBrake fluid level warning position OFFNo continuity
4 ± GroundBrake fluid level warning position ONContinuity
12 ± GroundConstantContinuity
14 ± GroundParking brake switch position OFF
(Parking brake lever released)No continuity
14 ± GroundParking brake switch position ON
(Parking brake lever pulled up)Continuity
17 ± GroundLight control switch position OFF or HEADNo voltage
17 ± GroundLight control switch position TAILContinuity
20 ± GroundConstantContinuity
21 ± GroundConstantContinuity
13 ± GroundEngine StopNo voltage
13 ± GroundEngine RunningBattery positive voltage
16 ± GroundConstantBattery positive voltage
18 ± GroundGround terminal 19Battery positive voltage
19 ± GroundConstantBattery positive voltage
22 ± GroundConstantBattery positive voltage
23 ± GroundIgnition switch position LOCK or ACCNo voltage
23 ± GroundIgnition switch position ON or STARTBattery positive voltage
If circuit is as specified, try replacing the relay with a new one.
If circuit is not as specified, inspect the circuits connected to oth-
er parts.

Z08559
1
2
341 2
43
N20139
1 2
I08422
I08423
BE±26
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2246 Author: Date:
7. INSPECT DAYTIME RUNNING LIGHT NO.4 RELAY
CONTINUITY
ConditionTester connectionSpecified condition
Constant3 ± 4Continuity
Apply B+ between
terminals 3 and 4.1 ± 2Continuity
If continuity is not as specified, replace the relay.
8. INSPECT DAYTIME RUNNING LIGHT RESISTER CON-
TINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Approx. 250mW
If continuity is not as specified, replace the resistor.
9. INSPECT LIGHT AUTO TURN OFF SYSTEM
(See Integration relay circuit on page BE±14)
10. INSPECT AUTOMATIC LIGHT CONTROL
(a) Turn the ignition switch ON.
(b) Turn the light control switch to OFF.
(c) Parking brake lever released.
(d) Gradually cover the top of the sensor.
(e) Verify that the lights should turn ON the accessory lights
and the headlights.
11. INSPECT AUTOMATIC LIGHT CONTROL
(a) Gradually expose the sensor.
(b) Verify that the lights should turn OFF the headlights and
the accessory lights.
12. INSPECT LIGHT±OFF CONDITION
(a) Turn the ignition switch ON.
(b) Gradually cover the top of the sensor.
Lights auto ON:
13. INSPECT LIGHTS±ON CONDITION
(a) Open the driver's door while the ignition switch is OFF.
(b) Turn the light control switch to OFF leaving the door open
and cover the top of the sensor, and verify that the lights
go on when the ignition switch is turned ON.

I01254
Wire harness side:
4 3 2 1
I01255
1
2 34
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±27
2247 Author: Date:
14. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
CIRCUIT
Connector disconnected:
Disconnect the connector from the sensor and inspect the con-
nector on the wire harness side, as shown in the table.
Tester connectionConditionSpecified condition
3 ± GroundConstantConstant
1 ± GroundIgnition switch LOCK or ACCNo voltage
1 ± GroundIgnition switch ONBattery positive voltage
4 ± GroundIgnition switch LOCK or ACCNo voltage
4 ± GroundIgnition switch ON5.2 ± 9.0 v
If circuit is as specified, perform the inspection on the following
page.
If the circuit is not as specified, inspect the circuit connected to
other parts.
15. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
CIRCUIT
Connector disconnected:
Connect the wire harness side connector to the sensor and in-
spect wire harness side connector from the back side, as
shown.
HINT:

Ignition switch ON.

Light control switch OFF.

Vehicle's surroundings are bright.
Tester connectionConditionSpecified condition
3 ± GroundConstantContinuity
1 ± GroundIgnition switch LOCK or ACCNo voltage
1 ± GroundIgnition switch ON9.5 V or more
Vehicle under the direct sun light.
(Sensor is not covered)Taillight and Headlight are ON.
If circuit is as specified, try replacing the sensor with a new one.
If the circuit is not as specified, inspect the circuit connected to
other parts.

BE0A7±02
N20156
For Adjustment
in Vertical Direction
For Adjustment in
Horizontal Direction BE±28
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2248 Author: Date:
ADJUSTMENT
1. ADJUST HEADLIGHT AIMING
2. ADJUST SPIRAL CABLE
(See page SR±16)

BE0A8±03
Z19045
E/G Room J/B No.2

HORN Fuse
Turn Signal Light
Instrument Panel J/B
No.1

TURN Fuse
Turn Signal Flasher
Combination Switch

Turn Signal SwitchIgnition SwitchHazard Warning Switch
Turn Signal Light
± BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
BE±29
2249 Author: Date:
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION