DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: OPERATION CHECK (2008 LX570)

The wireless door lock control function operates only when the following 5 conditions are met:

The engine switch is off.
All the doors are closed.
HINT:

The unlock function operates even when one of the doors is open.
There is no door control transmitter in the cabin.
The power door lock control system is functioning normally.
The function is not disabled by customization.

(b) The wireless transmitter operational area differs depending on the situation.

The operational area differs depending on the user, the way the transmitter is held and the location.
In certain areas, the operational area will be reduced due to the vehicle body shape and the influence of the surrounding environment.
The weak electric waves of the transmitter may be affected if the area has strong electric waves or noise. The transmitter operational area may be shortened or the transmitter may not function.
When the battery weakens, the operational area is reduced or the transmitter may not function.
HINT:

The battery may weaken or other problems may occur if one of the following occurs: 1) it has had prolonged exposure to direct sunlight, such as on the instrument panel; or 2) it is placed within 1 m (3.28 ft) of electrical products, such as TVs, computers, cordless phones, cell phone recharger stands (with the cell phone recharging), etc.

HINT:

The switches described below transmit signals and are built into the door control transmitter.
The transmitter operational area must be taken into account while checks are being made.

(a) Make sure the vehicle is in a condition in which the wireless door lock control functions can be operated (see previous step).

Check that the transmitter LED lights up 3 times when each switch is pressed 3 times.
HINT:

If the LED does not illuminate when the switch has been pressed 3 times or more, the battery may be depleted.
Check that when the lock switch is pressed, all the doors lock and the outer mirrors retract.
Check that when the unlock switch is pressed once, only the driver side door unlocks and the outer mirrors return. When the unlock switch is pressed again within 3 seconds, check that all doors unlock (2-step unlock function)*.
HINT:

*: The 2-step unlock function applies only if the setting of this function is the default.
When the transmitter is within 1 m (3.28 ft) of the driver seat, check that when the unlock switch is held down for 3 seconds or more, all the power windows and the sliding roof open. Also check that the open operation stops when the switch is released.

If a switch is pressed, check that the corresponding operation is performed only once. If the switch is held down, check that the corresponding operation occurs only once and does not repeatedly activate. Lastly, if a switch is pressed at 1 second intervals, check that the corresponding operation activates once for every press of the switch.

When the lock switch is pressed, check that the headlight warning lights flash once, the wireless door lock buzzer sounds once and all the doors lock.
When the unlock switch is pressed, check that the headlight warning lights flash twice, the wireless door lock buzzer sounds twice and all the doors unlock.

When all of the doors are unlocked with the unlock switch and none of the doors are opened or locked within 60 seconds*, check that the doors lock again.
HINT:

*: The automatic lock function time (60 seconds) applies only if the setting of this function is the default.

When the panic switch is held down for 1 second or more, check that the security horn and vehicle horn sound, the headlights, taillights, and side marker lights flash, and the map light and dome light illuminate.

If the key is in the vehicle, check that the doors cannot be locked by the lock switch. However, this does not apply when the system is in the recognition code registration mode.

When the map light door switch is on and all the doors are locked, pressing the unlock switch causes the map light, rear map light, dome light, side step lights and foot lights to illuminate and all doors to unlock simultaneously.
If the doors have not been opened, the map light, rear map light, dome light, side step lights and foot lights turn off in approximately 15 seconds.
HINT:

The illumination period of the lights can be changed by adjusting the customize parameters.