1999 TOYOTA CAMRY headlights

3. AUTOMATIC LIGHT CONTROL OPERATION
When the daytime running light is operating and the Automatic control sensor detects a decrease in the ambient light (It
continues less than approx. 2500 lux over about 20 seconds, and it is less than 1000 lux.), the automatic light control
operation starts. At the same time, daytime running light relay (Main) is activated, so current flows from the ALT fuse to the
Taillight relay (Coil side) to TERMINAL TAIL of the daytime running light relay (Main), and the DRL NO.2 fuse to the DRL
NO.4 relay (Coil side) to TERMINAL H±ON of the daytime running light relay (Main), activating both the Taillight relay and the
DRL NO.4 relay, so that the taillights and headlights light up.
When the automatic light control sensor detects an increase in the ambient light (It continues more than approx. 1000 lux
over about 20 seconds, and it is more than approx. 2500 lux), the ignition SW is turned to off, the light control SW is turned to
HEAD position, and the automatic light control operation stops.
HEAD RELAY [ENGINE ROOM J/B NO.2]
1±2 : 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 is released (Parking brake SW off)
TAILLIGHT RELAY [INSTRUMENT PANEL J/B]
5±3 : Closed with the light control SW at TAIL or HEAD position
D6 DAYTIME RUNNING LIGHT RELAY (MAIN)
2±GROUND : Approx. 12 volts with the ignition SW at ON position
5, 7,17±GROUND : Approx. 12 volts with the light control SW at HEAD position or the dimmer SW at FLASH position
Approx. 12 volts with the engine running and the parking brake lever is released
(Parking brake SW off)
6,15±GROUND : Always approx. 12 volts
8±GROUND : Continuity with the parking brake lever pulled up
11±GROUND :13.9±15.1 volts with the engine running at 2000 rpm 25°C (77°F)
12±GROUND : Approx. 12 volts with the high beam light up
13±GROUND : Always continuity
16±GROUND : Continuity with the dimmer SW at HIGH or FLASH position
18±GROUND : Continuity with the brake fluid level not enough
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A4030F6C26 (1MZ±FE)J131
B226 (1MZ±FE)F6C28 (5S±FE)J231B228 (5S±FE)F9F26 (1MZ±FE)J431
C9B30F9F28 (5S±FE)J531
C10C30G226 (1MZ±FE)J731
C1330G228 (5S±FE)J1131
D226 (1MZ±FE)H126 (1MZ±FE)J27A31D228 (5S±FE)H128 (5S±FE)J28B31
D630H226 (1MZ±FE)P331
F4A26 (1MZ±FE)H228 (5S±FE)F4A28 (5S±FE)I1730
SERVICE HINTS

Door lock control (Lock and unlock) and panic control (Theft alarm and flash) is performed by remote control, without the
ignition key inserted in the door key cylinder, using low±power electrical waves emitted by a transmitter.
1. WIRELESS DOOR LOCK OR UNLOCK NORMAL OPERATION
With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed,
when the lock or unlock button (Transmitter) is pushed, the wireless door lock ECU receives the electrical waves from the
transmitter, causing it to operate.
As a result, the ECU judges whether the door is locked or unlocked based on the signal from the door lock motor and door
unlock detection SW, and sends a signal to the theft deterrent ECU and integration relay to switch the condition from lock to
unlock or vice versa, causing the door lock motor to operate.
2. VISUAL CONFIRMATION OF LOCK OR UNLOCK
If all doors indicate that they are locked after the lock command, parking lights and taillight will flash once. If any door
indicates that it is open after the unlock command, parking lights and taillights will flash twice.
3. WIRELESS DOOR UNLOCK OPERATION
Pushing the unlock button (Transmitter) once, driver's door is unlocked. Furthermore, pushing the button again within 3
seconds, the other doors are unlocked.
4. AUTOMATIC LOCK OPERATION
With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed,
after pushing the button (Transmitter) to unlock all the doors, if a door is not opened within 30 seconds, all the doors will be
automatically relocked.
5. WIRELESS CONTROL STOP FUNCTION
If a door is open (Door courtesy SW on), a signal is input from the door courtesy SW to the wireless door lock ECU, stopping
wireless door lock or unlock.
If the ignition key is in the ignition key cylinder (Unlock warning SW on), the unlock warning SW inputs a signal to the
wireless door lock ECU, stopping wireless door lock or unlock.
6. DOOR LOCK MOTOR PROTECTIVE FUNCTION
If the door lock or unlock condition does not change after wireless door lock or unlock operation, 2 seconds later, the
integration relay ECU sends current three times to the door lock motor. If the door lock condition still has not changed as a
result, the wireless door lock ECU stops reception and stops door lock and unlock function.
7. REMOTE PANIC OPERATION
Panic will function when doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once,
theft alarm sounds and headlights and taillight flash. Then, the panic or the unlock button (Transmitter) is pushed once more,
sounding and flashing will stop. Panic will not function when ignition key is in ignition key cylinder.
D12, D13, D14, D15 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH
1±GROUND : Continuity with the door open
U1 UNLOCK WARNING SW
2±1 : Continuity with the ignition key in the cylinder
W6 WIRELESS DOOR LOCK ECU
8±GROUND : Always approx. 12 volts
1±GROUND : Always continuity
14±GROUND : Continuity with each of the door open
10±GROUND : Continuity with the ignition key in the cylinder
SYSTEM OUTLINE
SERVICE HINTS

Door lock control (Lock and unlock) and panic control (Theft alarm and flash) is performed by remote control, without the
ignition key inserted in the door key cylinder, using low±power electrical waves emitted by a transmitter.
1. WIRELESS DOOR LOCK OR UNLOCK NORMAL OPERATION
With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed,
when the lock or unlock button (Transmitter) is pushed, the wireless door lock ECU receives the electrical waves from the
transmitter, causing it to operate.
As a result, the ECU judges whether the door is locked or unlocked based on the signal from the door lock motor and door
unlock detection SW, and sends a signal to the theft deterrent ECU and integration relay to switch the condition from lock to
unlock or vice versa, causing the door lock motor to operate.
2. VISUAL CONFIRMATION OF LOCK OR UNLOCK
If all doors indicate that they are locked after the lock command, parking lights and taillight will flash once. If any door
indicates that it is open after the unlock command, parking lights and taillights will flash twice.
3. WIRELESS DOOR UNLOCK OPERATION
Pushing the unlock button (Transmitter) once, driver's door is unlocked. Furthermore, pushing the button again within 3
seconds, the other doors are unlocked.
4. AUTOMATIC LOCK OPERATION
With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed,
after pushing the button (Transmitter) to unlock all the doors, if a door is not opened within 30 seconds, all the doors will be
automatically relocked.
5. WIRELESS CONTROL STOP FUNCTION
If a door is open (Door courtesy SW on), a signal is input from the door courtesy SW to the wireless door lock ECU, stopping
wireless door lock or unlock.
If the ignition key is in the ignition key cylinder (Unlock warning SW on), the unlock warning SW inputs a signal to the
wireless door lock ECU, stopping wireless door lock or unlock.
6. DOOR LOCK MOTOR PROTECTIVE FUNCTION
If the door lock or unlock condition does not change after wireless door lock or unlock operation, 2 seconds later, the
integration relay ECU sends current three times to the door lock motor. If the door lock condition still has not changed as a
result, the wireless door lock ECU stops reception and stops door lock and unlock function.
7. REMOTE PANIC OPERATION
Panic will function when doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once,
theft alarm sounds and headlights and taillight flash. Then, the panic or the unlock button (Transmitter) is pushed once more,
sounding and flashing will stop. Panic will not function when ignition key is in ignition key cylinder.
D12, D13, D14, D15 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH
1±GROUND : Continuity with the door open
U1 UNLOCK WARNING SW
2±1 : Continuity with the ignition key in the cylinder
W6 WIRELESS DOOR LOCK ECU
8±GROUND : Always approx. 12 volts
1±GROUND : Always continuity
14±GROUND : Continuity with each of the door open
10±GROUND : Continuity with the ignition key in the cylinder
SYSTEM OUTLINE
SERVICE HINTS