Hey guys, after I took my car to a shop ( they replaced ignition switch, and vacum pump for central locking system) my keyless entry key wont unlock or lock the doors with the remote, but does manually.

I'm thinking it needs to be re-programed or re-synced?

I tried the pointing the key at the door handle and holding it down and then unlocking the door, nothing worked. Then tried putting the key in the number 2 position and starting it after hitting the unlock button.


Can anyone give me some advice?


It's a 92 sel 600. Thanks.

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1992 SEL 600..... 143,000 miles