Digital Door Locks

[HowieE]

The digital door locks on my Ex. have started to work less frequently. For a while they worked 90% of the time now it is down to less than 50% of the time.

Is there a way to clean the contacts within the key pad as I suspect that is where the problem is?

 

[CHPMustang]

Our keypad works maybe half the time,the Excursion is showing it's age at 7 years old now. My understanding it's the module the keypad is wired to that actuates the door locks that goes belly up after so many years,it's not cheap either.