Keyfob Battery and Function Check

With CONSULT-III 

Check keyfob function in "DATA MONITOR" mode with CONSULT-III. When pushing each button of keyfob, the corresponding monitor item should be turned as follows.

Without CONSULT-III 

Check keyfob function using Remote Keyless Entry Tester J-43241.

Fig 1: Identifying Remote Keyless Entry Tester J-43241

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Keyfob is OK.

NG: GO TO 2

1. Open the lid using a coin.
   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.
2. Remove the key fob battery.
   CAUTION:

   • Keep dirt, grease, and other foreign materials off the electrode contact area.
   Fig 2: Removing Key Fob Battery

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Visually inspect keyfob internal components.

Is the inspection result normal? 

YES: GO TO 3

NO: Repair or replace malfunctioning parts.

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: Key fob battery is OK. Check remote keyless entry receiver. Refer to "REMOTE KEYLESS ENTRY RECEIVER CHECK ".

NO: GO TO 4

Fig 3: Checking Key Fob Battery

Courtesy of NISSAN MOTOR CO., U.S.A.

1. Replace the key fob battery, positive side down.
2. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
   CAUTION:

   • When replacing battery, keep dirt, grease, and other foreign materials off the electrode contact area.
3. After replacing the battery, check that all key fob functions work properly.
   Fig 4: Pushing Key Fob Battery

   Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal? 

YES: Key fob is OK.

NO: Check remote keyless entry receiver. Refer to "REMOTE KEYLESS ENTRY RECEIVER CHECK ".