Smart Lock Remote Battery Testing.

This document will explain the method to identify battery related problems with the "smart lock" remotes used from EBII - AU Falcons. Commonly battery related faults are not actually a flat battery, but a poor connection between the battery and the remote circuit board.

1. Remove the front cover from the smart lock remote by taking out the screw on the rear of the remote, and gently separating the covers.

2. Identify on the circuit board the main battery contacts, as shone below.

3. Place a multi-meter on these terminals, and while pressing either button on the remote, observe the reading.( It may be necessary to use a small blunt object such As a pen to press the buttons). Anything over 10V is fine.
If at this point the voltage is 10V or more, the problem is a non battery related problem and further investigation/Remote replacement may be

Required. They are available from ford spare parts for around the $90 mark, or you can source a second hand unit.

4. Placing the multi-meter leads directly on the battery terminals while the battery is still in the remote, repeat the previous procedure. If the Battery voltage is higher than shown at the terminals on the circuit board by more then a small amount. (Circa 0.2-0.3V), and higher than 10V, the battery itself is not faulty.

Follow the following procedure to clean the contacts and retest.

If the battery voltage is similar to the voltage read in step 3, and lower then 10 volts, replace the battery and clean the terminals in the remote as outlined below.

5. To clean the terminals on the remote (where the battery goes) use a small flat bladed screwdriver and scrape the corrosion and dirt etc off the contacts.

A small amount of electrical contact cleaner will aid in the cleaning also.

6. Check to see if the battery fits securely in the remote. If the terminals do not securely hold the battery, simply bend one or both of them very gently towards the centre of the remote using a small flat screwdriver.

7. Refit the battery and check the voltages at the contacts on the remote circuit board, again while pressing a button on the remote. Compare the voltage to the voltage on the battery itself, again while pressing a button on the remote; it should be the same/very close.

8. Assuming the remote appears to work correctly, re-assemble the remote, and test on the vehicle. It should not be necessary to re-train the remote to the car.

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