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Central Locking Synchronization

761

By 761
in 986 Series (Boxster, Boxster S)

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761 Member

761

Posted
Posted (edited)

Hi everyone, Great site, lots of great info. Thanks to everyone!

I have a 1999 Boxster.

The doors will NOT unlock with the remote.

The windows lower when opening and closing doors.

I replaced the drivers side DLM, a few days ago because the window was NOT lowering. I thought it may fix the door unlocking issue, but it has not.

When I attempt to unlock the doors via remote, I get two beeps, and the doors lock. I hear all the servos running, it sounds like doors are unlocking then locking again.

I hooked up the Durametric and get codes 46 and 47, both say Central Lock Synchronization.

I can't find any OBD codes that relate to alarm/keyless entry. The only codes I can see to find anywhere are the Engine codes.

Can anyone please help with knowledge or codes or where to start looking?

Thanks in advance!

Edited by 761
  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

:welcome:

Fault code 46 (and 47) -- Central locking synchronization

Possible cause of fault

- Short circuit to ground/open circuit between alarm system control module and door locks

- Door lock faulty

  • Upvote 1
761 Member

761

Posted
  • Author
Posted

Thanks Loren!

Do you think I should try and replace the passenger side DLM? Or is there another step I could take before

a) buying the DLM and installing it

B) trying to tear the whole car apart looking for a short?

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

If there is a short it is likely in the door near the lock or window mechanism (perhaps someone replaced the regulator and pinched something.

Someone with a PST2 or PIWIS tester might be able to narrow it down more by running the door lock tests and the switch closure tests on the tester.

  • Upvote 1
761 Member

761

Posted
  • Author
Posted

Thanks again Loren!

Anyone have a PST2 or PIWIS that I could hook in to?

In Los Angeles?

I'm also driving up to San Francisco in two weeks???

Thanks

If there is a short it is likely in the door near the lock or window mechanism (perhaps someone replaced the regulator and pinched something.

Someone with a PST2 or PIWIS tester might be able to narrow it down more by running the door lock tests and the switch closure tests on the tester.

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