Nissan Versa (N17): Keyfob battery and function

Nissan Versa 2nd generation (N17) Service Manual / Body exterior, doors, roof & vehicle security / Door & lock (DLK) / Keyfob battery and function

Description

The following functions are available when having and carrying the keyfob.

  • Door lock/unlock
  • Panic mode (horn and headlamp operation)

Remote control entry function and panic alarm function are available when operating the remote buttons.

Component Function Check

NOTE: The Signal Tech II Tool (J-50190) can be used to test the remote keyless entry keyfob relative signal strength.

Refer to the Signal Tech II User Guide for additional information.

1.CHECK FUNCTION

With CONSULT

Check remote keyless entry receiver KEYLESS LOCK, KEYLESS UNLOCK, KYLS TRNK/HAT and KEYLESS PANIC in Data Monitor mode with CONSULT.                   

Is the inspection result normal?

YES >> Keyfob is OK.

NO >> Refer to DLK "Diagnosis Procedure".

Diagnosis Procedure

NOTE: The Signal Tech II Tool (J-50190) can be used to test the remote keyless entry keyfob relative signal strength.

Refer to the Signal Tech II User Guide for additional information.

1.CHECK KEYFOB FUNCTION

Check keyfob function using Signal Tech II Tool J-50190 or Remote Keyless Entry Tester J-43241 (shown).

Does the test pass?

YES >> Keyfob is OK.

NO >> GO TO 2

CHECK KEYFOB FUNCTION

2. CHECK KEYFOB COMPONENTS

  1. Remove the screw (A).
  2. Insert a small screwdriver into the slit of the corner (B) and twist it to separate the upper part from the power part. Use a cloth to protect the casing.

    CAUTION: Do not touch the circuit board or battery terminal. The keyfob is water-resistant. However, if it does get wet, immediately wipe it dry.

  3. Remove the keyfob battery.

    CAUTION: Keep dirt, grease, and other foreign materials off the electrode contact area.

  4. Visually inspect keyfob internal components.

Is the inspection result normal?

YES >> GO TO 3

NO >> Repair or replace malfunctioning parts.

CHECK KEYFOB COMPONENTS

3.CHECK KEYFOB BATTERY

Check by connecting a resistance (approximately 300Ω) so that the current value becomes about 10 mA.

Standard : Approx. 2.5 - 3.0V

Is the measurement value within specification?

YES >> Keyfob battery is OK. Check remote keyless entry receiver. Refer to DLK "Component Function Check".

NO >> GO TO 4

CHECK KEYFOB BATTERY

4. REPLACE KEYFOB BATTERY

1. Replace the keyfob battery with a new one (CR1620 or equivalent).

CAUTION:

  • When replacing battery, keep dirt, grease, and other foreign materials off the electrode contact area.
  • Make sure that the + side faces the bottom of the case.

2. Align the tips of the upper and lower parts, and then push them together until it is securely closed.

3. After replacing the battery, check that all keyfob functions work properly.

Is the inspection result normal?

YES >> Keyfob is OK.

NO >> Check remote keyless entry receiver. Refer to DLK "Component Function Check".

 REPLACE KEYFOB BATTERY

Remote keyless entry receiver

Description Receives keyfob operation and transmits to BCM. ...

Horn function

Description Perform answer-back for each operation with horn. ...

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