Keyfob Battery and Function Check

REMOTE KEYLESS ENTRY SYSTEM

Keyfob Battery and Function Check

NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II
User Guide for additional information.

1. CHECK KEYFOB FUNCTION

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





Without CONSULT
Check keyfob function using Signal Tech II Tool J-50190 or Remote
Keyless Entry Tester J-43241 (shown).





OK or NG
OK- Keyfob is OK.
NG- GO TO 2

2. CHECK KEY FOB COMPONENTS

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.
3.Visually inspect keyfob internal components.
Is the inspection result normal?





YES- GO TO 3
NO- Repair or replace malfunctioning parts.

3. CHECK KEY FOB BATTERY

Check by connecting a resistance (approximately 300Ohms) 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. Remote Keyless Entry Receiver Check.
NO- GO TO 4






4. REPLACE KEY FOB BATTERY

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.
Is the inspection result normal?
YES- Key fob is OK.
NO- Check remote keyless entry receiver. Remote Keyless Entry Receiver Check.