Lexus NX: Inspection

INSPECTION

PROCEDURE

1. INSPECT ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY

NOTICE:

When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key transmitter sub-assembly from being damaged.

(a) Inspect the operation of the electrical key transmitter sub-assembly.

(1) Remove the transmitter battery from the door control transmitter housing set.

Click here

(2) Install a new or non-depleted transmitter 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 electrical key transmitter sub-assembly as shown in the illustration.

(3) From outside the vehicle, approximately 1 m (3.28 ft.) from the driver door outside door handle, test the door control transmitter housing set by pointing its key plate at the vehicle and pressing a door control transmitter housing set switch.

OK:

The door lock can be operated via the door control transmitter housing set.

  • The operational area differs depending on the user, the way the door control transmitter housing set is held and the location.
  • The weak radio waves of the door control transmitter housing set sub-assembly may be affected if the area has strong radio waves or electrical noise. The door control transmitter housing set sub-assembly operation area may be shortened or the door control transmitter housing set sub-assembly may not function.

(b) Inspect the transmitter battery capacity.

(1) Remove the transmitter battery from the door control transmitter housing set sub-assembly 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.

Click here

NOTICE:

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

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

NOTICE:

When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key transmitter from being damaged.

(3) Install the transmitter battery.

NOTICE:

When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key transmitter from being damaged.

(4) Check the transmitter battery voltage.

HINT:

Measure the transmitter battery voltage while pressing the lock or unlock switch on the door control transmitter module set sub-assembly.

Click here

Standard Voltage:

Tester Connection

Condition

Specified Condition

Transmitter battery positive (+) - Transmitter battery negative (-)

Power switch off, all doors closed and lock or unlock switch is pressed

2.3 to 3.2 V

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

*a

GND

2. INSPECT ELECTRICAL KEY (CARD KEY) TRANSMITTER SUB-ASSEMBLY

NOTICE:

When replacing the card key transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key (card key) transmitter sub-assembly from being damaged.

(a) Inspect the operation of the electrical key (card key) transmitter sub-assembly.

(1) Remove the card key transmitter battery from the electrical key (card key) transmitter sub-assembly.

Click here

(2) Install a new or non-depleted card key transmitter 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 electrical key (card key) transmitter sub-assembly as shown in the illustration.

(3) From outside the vehicle, approximately 1 m (3.28 ft.) from the driver door outside door handle, test the electrical key (card key) transmitter sub-assembly by pointing its key plate at the vehicle and pressing an electrical key (card key) transmitter sub-assembly switch.

OK:

The door lock can be operated via the electrical key (card key) transmitter sub-assembly.

  • The operational area differs depending on the user, the way the electrical key (card key) transmitter sub-assembly is held and the location.
  • The weak radio waves of the electrical key (card key) transmitter sub-assembly may be affected if the area has strong radio waves or electrical noise. The electrical key (card key) transmitter sub-assembly operation area may be shortened or the electrical key (card key) transmitter sub-assembly may not function.

(b) Inspect the card key transmitter battery capacity.

(1) Remove the card key transmitter battery from the electrical key (card key) transmitter sub-assembly 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.

Click here

NOTICE:

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

(2) Carefully pull the lead wire out from the position shown in the illustration and install the previously removed card key transmitter battery.

NOTICE:

When replacing the card key transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key (card key) transmitter sub-assembly from being damaged.

*a

GND

(3) Install the card key transmitter battery.

NOTICE:

When replacing the card key transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key (card key) transmitter sub-assembly from being damaged.

(4) Check the card key transmitter battery voltage.

HINT:

Measure the card key transmitter battery voltage while pressing the lock or unlock switch on the electrical key (card key) transmitter sub-assembly.

Click here

Standard Voltage:

Tester Connection

Condition

Specified Condition

Card key transmitter battery positive (+) - Card key transmitter battery negative (-)

Power switch off, all doors closed and lock or unlock switch is pressed

2.3 to 3.2 V

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

READ NEXT:

 Installation

INSTALLATION PROCEDURE 1. INSTALL TRANSMITTER BATTERY Click here 2. INSTALL TRANSMITTER (CARD KEY) BATTERY Click here

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SEE MORE:

 Installation

INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. INSTALL DOOR SIDE AIRBAG SENSOR LH (a) Check that the power switch is off. (b) Check that the cable is disconnected from the negative (-) aux

 Seat Heater Control (for Front Seat)

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