Toyota 4Runner: Door Control Transmitter(w/ Smart Key System)

Components

COMPONENTS

ILLUSTRATION

Removal

REMOVAL

CAUTION / NOTICE / HINT

NOTICE:

Take extra care when handling these precision electronic components.

PROCEDURE

1. REMOVE TRANSMITTER BATTERY

(a) Push the release hook knob and extract the emergency key.

(b) Insert a precision screwdriver into the gap and turn the screwdriver to detach the transmitter housing cover. HINT: Tape the screwdriver tip before use.

(c) Remove the battery (lithium battery: CR1632). NOTICE: Do not push the terminals with your finger. Do not forcibly pry up the battery. The terminals may be damaged. Do not touch the battery with wet hands. Water may cause rust. Do not touch or move any components inside the transmitter. It may interfere with proper operation.

Inspection

INSPECTION

PROCEDURE

1. INSPECT TRANSMITTER BATTERY

(a) Inspect the operation of the transmitter.

(1) Remove the battery (lithium battery) from the transmitter (See page ).

(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.

(b) Inspect the battery capacity.

(1) Remove the battery from an electrical key transmitter that does not operate (See page ).

(2) Attach a lead wire (0.6 mm (0.0236 in.) or less in diameter including wire sheath) with tape or equivalent to the negative terminal.

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.

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

(4) Using an oscilloscope, check the transmitter battery voltage waveform. HINT: When measuring the battery voltage, bring the electrical key transmitter within the smart key system operating range and operate the lock switch of a door handle to perform the measurement. For the smart key system operating range, refer to System Description (See page ). Standard Voltage: Tester Connection Tool Setting Condition Specified Condition Battery positive (+) - Battery negative (-) 0.5 V/DIV., 100 ms/DIV. Engine switch off, all doors closed and lock switch touched 2.2 to 3.2 V (Refer to waveform) If the result is not as specified, replace the transmitter battery. Text in Illustration *a Measurement Position

Installation

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

Take extra care when handling these precision electronic components.

PROCEDURE

1. INSTALL TRANSMITTER BATTERY

(a) Install the battery (lithium battery: CR1632) with the positive (+) side facing upward as shown in the illustration. NOTICE: Do not bend the transmitter battery electrode during insertion. Keep the transmitter cover interior free of dust and oil.

(b) Install the transmitter housing cover.

(c) Insert the emergency key into the transmitter.

(d) Press one of the transmitter switches and check that the LED illuminates.