1999 TOYOTA CAMRY headlights

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.

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.

P14433
Terminal F CH±4
± CHARGING (5S±FE)CHARGING SYSTEM
1751 Author: Date:
If the voltmeter reading is less than standard voltage, check the
voltage regulator and generator as follows:

With terminal F grounded, start the engine and
check the voltmeter reading of terminal B.

If the voltmeter reading is more than standard volt-
age, replace the voltage regulator.

If the voltmeter reading is less than standard volt-
age, check the generator.
9. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater blower switch at
ºHIº.
(b) Check the reading on the ammeter.
Standard amperage: 30 A or more
If the ammeter reading is less than the standard amperage, re-
pair the generator.
HINT:
If the battery is fully charged, the indication will sometimes be
less than standard amperage.

P14228
Terminal F CH±4
± CHARGING (1MZ±FE)CHARGING SYSTEM
1767 Author: Date:
If the voltmeter reading is less than standard voltage, check the
voltage regulator and generator as follows:

With terminal F grounded, start the engine and
check the voltmeter reading of terminal B.

If the voltmeter reading is more than standard volt-
age, replace the voltage regulator.

If the voltmeter reading is less than standard volt-
age, check the generator.
9. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater blower switch at
ºHIº.
(b) Check the reading on the ammeter.
Standard amperage: 30 A or more
If the ammeter reading is less than the standard amperage, re-
pair the generator.
HINT:
If the battery is fully charged, the indication will sometimes be
less than standard amperage.

DI06N±05
THEFT DETERRENT SYSTEM Check Sheet
Inspector 's name:
Customer 's Name
Date of VehicleRegistration No.
Registration Year
Frame No.
Odometer Reading / /km
Mile
Weather Conditions
When Problem
Occurred Frequency Problem OccursWeather
Outdoor temperature
/ /

Constant
Sometimes ( Times per day, month)

Once only Brought in

Theft deterrent system cannot be set.

Indicator light does not flash when the theft deterrent system is set.
(It stays on or does not light at all.)

Theft deterrent system
does not operate.
When unlocked using the
door lock knob.

When the engine hood is
opened.

System cannot be
canceled once set.
When door is unlocked using key or wireless door lock control system.

When the key is inserted in the ignition key cylinder and turned to ACC or ON
position.
(However, only when the system has never operated)

When the luggage compartment door is opened with the key.

System cannot be
canceled during warning
operation.
When door is unlocked using key or wireless door lock control system.

When the key is inserted in the ignition key cylinder and turned to ACC or ON
position.

Warning operation starts when the system is set and the door or luggage compartment door is opened with
the key.

Others.
Date Problem First Occurred

Fine
Cloudy
Rainy
Snowy

Various/Others

Hot
Warm
Cool

Cold (Approx. 5F ( 5C))
Problem Symptom
Malfunction

Horns only

Theft deterrent horn only

Headlights only

Taillights only

Starter cut only

Door lock operation only
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±827
1062 Author: Date:
CUSTOMER PROBLEM ANALYSIS CHECK

I00228
0.25 ± 0.05 sec.
0.25 ± 0.05 sec.
ON
OFF
Horns Sounding and Lights Flashing
Pattern
0.2 ± 0.05 sec.
0.55 ± 0.05 sec. ON
OFF
Output of Key Lock Pattern
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±829
1064 Author: Date:
(3) About 30 seconds after the process±(2), on the pre-
vious page the Theft Deterrent mode will automati-
cally start.
HINT:
If, while following above steps, you use the key or the remote
control to lock the door, the system will be set to ACTIVE ARM-
ING MODE.
3. THEFT DETERRENT OPERATION
When the system is set to the theft deterrent mode and any of
the following conditions are met, the system sounds the horns
and flashes the headlights and the taillights for about 1 minute.
At the same time locks all doors (If all doors are not locked at
once, the system repeats door locking operation every 0.55 se-
conds during the one±minute alarm time).
Condition
(1) Any of the doors (Including the engine hood and
luggage compartment door) is unlocked or opened
without the key. *1
(2) The battery terminal is disconnected and recon-
nected. *2
(3) The system receives panic signal from remote key-
less entry. *3
*1: Only active arming mode.
*2: When the ignition key is not inserted in the key
cylinder.

DI06R±06
Details of Problem
The theft deterrent system cannot be set
Inspecting Circuit*1See page
DI±838 1. Indicator light circuit
2. ECU power source circuit
3. Key unlock warning switch circuit
7. Door courtesy switch circuit
8. Door unlock detection switch circuit
9. Engine hood courtesy switch circuit
The indicator light does not blink when system is setIndicator light circuit
When the
system is
set
When the rear doors are unlocked
When the luggage compartment door is opened
by a method other than the key4. Luggage compartment door key
lock and unlock switch circuit
5. Luggage compartment door
courtesy switch circuit
When the engine hood is opened
The system
does not
operateDoor unlock detection switch circuit
Luggage compartment door
courtesy switch circuit
Engine hood courtesy switch circuit
While the system is
in warning operation
Horns do not sound
Theft deterrent horn does not sound
Headlights do not flash
Taillights do not flash
The door lock is not locked in unlock conditionHorn relay circuit
Theft deterrent horn circuit
Headlight control relay circuit
Taillight control relay circuit
Door unlock detection switch circuit
6. Door key lock and unlock switch
circuit
It is not canceled when the ignition key is turned to
ACC or ON position
It still operates when the luggage compartment door is
opened with the key When the
system is
set
Ignition switch circuit
Luggage compartment door key
lock and unlock switch circuit
System is still set even when a rear door is open
Door courtesy switch circuit
Even when the
system is not
setHorns sound
Theft deterrent horn sounds
Headlights stay on
Taillights stay onHorn relay circuit
Theft deterrent horn circuit
Headlight control relay circuit
Taillight control relay circuit
DI±840
DI±853
DI±855
DI±858
DI±855
DI±864
DI±862
DI±866
DI±838
DI±862
DI±858
DI±866
DI±845
DI±843
DI±847
DI±849
DI±862
DI±851
DI±855
DI±864
DI±845
DI±843
DI±847
DI±849
*1: If numbers are given to the circuit proceed with troubleshooting in the order indicated by those numbers.
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±837
1072 Author: Date:
PROBLEM SYMPTOMS TABLE
Proceed to the reference page shown in the matrix chart below for each malfunction symptom and trouble-
shoot for each circuit.
HINT:
Troubleshooting of the theft deterrent system is based on the premise that the door lock control system is
operating normally. Accordingly, before troubleshooting the theft deterrent system, first make certain that
the door lock control system is operating normally.

I08428
E/G Room J/B No.2
Theft Deterrent ECU Headlight
Control Realy
FL MAIN
Battery 3
2BMAIN
HEAD R±B B
3 4
1
28
2K
32G
1
F61
F4Light Control Switch
(COMB. SW)
*1
Daytime Running
Light Relay*2
Daytime Running
Light Relay7
IG310
T3 R±B
*1
R±B*2R*2
19J32
*1
J6*2
J/C
*1: w/o Daytime Running Light
*2: w/ Daytime Running Light2BB
FL BLOCK
B±GR±B
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±847
1082 Author: Date:
Headlight Control Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approxi-
mately 0.4 sec. intervals. This switches the headlight control relay ON and OFF, thus flashing the headlights
(See the wiring diagram below).
In this condition, if any of the following operations is done, the Tr in the ECU goes OFF and the headlight
control relay switches OFF, thus stopping the headlights flashing:
(1) Unlock the front LH or RH door with key.
(2) Turn the ignition switch to ACC or ON position.
(3) Unlock the doors with the wireless door lock control system.
(4) Wait for approximately 60 seconds.
(5) Push the panic switch of the wireless door lock control system.
WIRING DIAGRAM
DI06X±06