Keyless Entry Transmitter: Testing and Inspection

DOOR LOCK: DOOR CONTROL TRANSMITTER: INSPECTION

1. INSPECT TRANSMITTER BATTERY

(a) Inspect the operation of the transmitter.

(1) Remove the battery (lithium battery) from the transmitter Removal.

(2) Install a new or normal battery (lithium battery).





HINT
If a new or normal battery is not available, first connect 2 new 1.5 V batteries in series. Then connect leads to the batteries and apply 3 V to the transmitter, as shown in the illustration.

(3) From outside the vehicle, approximately 1 m (3.28 ft) away from the driver side outside door handle, test the transmitter by pointing its key plate at the vehicle and pressing a transmitter switch, or while carrying the transmitter touch the inside of the handle and pull it.

OK:

The door lock can be operated via the transmitter.

The LED comes on more than once.

HINT
* The operational area differs depending on the user, the way the transmitter is held, and the location.
* The weak electric waves from 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.

(b) Inspect the battery capacity.





(1) Remove the battery from the electrical key transmitter that does not operate. Attach a lead wire (0.6 mm (0.0236 in.) in diameter or less including wire sheath) with tape or equivalent to the negative terminal Removal.

NOTICE:
Do not wrap the lead wire around a terminal, wedge it between terminals, or solder it. A terminal may be deformed or damaged, and the battery will not be able to be installed correctly.

(2) Carefully extend the lead wire from the position shown in the illustration and install the previously removed transmitter battery.

(3) Using an oscilloscope, check the transmitter battery voltage waveform.





HINT
When measuring the battery voltage, and operate the lock switch of a door handle bring the electrical key transmitter within the smart access system operating range and operate the lock switch of a door handle to perform the measurement. For the smart access system operating range, refer to System Description Smart Key System (for Entry Function).

Standard Voltage:





If the result is not as specified, replace the transmitter battery.