Toyota Tacoma (2015-2018) Service Manual: Operation Check

OPERATION CHECK

1. NOTICE WHEN CHECKING FOLLOWING

(a) Wireless door lock/unlock function:

This wireless door lock control function operates only when the following 3 conditions are met:

(1) The engine switch is off.

(2) All doors are closed.

(3) The power door lock control system is operating normally.

HINT:

The unlock function operates even when a door is open.

(b) The size of the wireless door lock control operation area differs depending on the situation.

(1) The size of the operation area differs depending on the user and the way the electrical key transmitter sub-assembly is held.

(2) In certain areas, the wireless door lock control function will only operate partially for the operation area, which will be reduced due to the vehicle body shape and the influence of the surrounding environment.

(3) Since the electrical key transmitter sub-assembly uses weak radio waves, strong radio waves or electrical noise in the frequency used by the electrical key transmitter sub-assembly may reduce the size of the operation area and the remote control may not function.

(4) When the transmitter battery is weak, the size of the operation area is reduced and the remote control may not function.

HINT:

If the electrical key transmitter sub-assembly has been left in a place that is exposed to direct sunlight, such as on the instrument panel, it may cause the battery to be weakened or cause other related problems.

2. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

NOTICE:

The operation check below is based on the non-customized initial condition of the vehicle.

(a) Make sure that the vehicle is in an area that allows the wireless control function to operate.

(b) Check basic functions.

(1) Check whether the LED of the electrical key transmitter sub-assembly comes on 3 times when each switch is pressed and held 5 seconds.

HINT:

If the transmitter LED illuminates once or twice but not a third time when the switch has been pressed and held 5 seconds or more, it may have a weak battery.

(2) Check that all doors lock when the lock switch is pressed.

(3) Check that the driver door unlocks when the unlock switch is pressed once, and all doors unlock when pressed twice within 5 seconds.

(c) Check the chattering prevention function.

(1) Check that the corresponding operation occurs only once and is not repeated continuously while the switch is held. However, when the switch is operated repeatedly at 1-second intervals, check that the corresponding operation is carried out.

(d) Check the automatic locking function.

(1) Check that the doors relock automatically as long as none of the doors have been opened or all doors have not been locked within approximately 60 seconds after all doors are unlocked by pressing the unlock switch.

(2) Check that the automatic locking function does not operate when any door has been opened within approximately 60 seconds of unlocking the doors by pressing the unlock switch.

(3) Check that the automatic locking function does not operate when all doors have been locked manually (such as using key linked operation, or by pressing the lock switch) within approximately 60 seconds of unlocking the doors by pressing the unlock switch.

(e) Check the switch operation fail-safe function.

(1) Check that the doors cannot be locked or unlocked by operating a switch on the unregistered electrical key transmitter sub-assembly, and that the doors are locked and unlocked by operating a switch on the registered electrical key transmitter sub-assembly.

(f) Check the door ajar warning function.

(1) Check that the wireless door lock buzzer sounds for approximately 5 seconds when the lock switch is pressed with any of the doors ajar or open.

(g) Check the repeat function.

(1) Check that all doors attempt to automatically lock once again 1 second after the lock switch has been pressed while the driver door control knob is being held in the unlock position.

(h) Check the answer-back (hazard warning light) function.

(1) When the lock switch is pressed, check that the hazard warning lights flash once simultaneously with the locking operation of all doors.

(2) When the unlock switch is pressed once, check that the hazard warning lights flash twice simultaneously with the unlocking operation of the driver door.

(i) Check the answer-back (wireless door lock buzzer) function.

(1) When the lock switch is pressed, check that the buzzer sounds once simultaneously with the locking operation of all doors.

(2) When the unlock switch is pressed once, check that the buzzer sounds twice simultaneously with the unlocking operation of the driver door.

(j) Check the panic alarm control function (See page ).

(k) Check the illuminated entry function (See page ).

(l) Check the sliding roof open function (See page ).