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door lock doesn't open when engine is turned off

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Old Nov 15, 2018 | 07:30 PM
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Default door lock doesn't open when engine is turned off

Hello

Until today, when I turned the key off, both doors would become unlocked. Now tonight, only the passenger side unlocks when the key is turned off. Any idea what happened? I have to unlock the driver's door manually now.

Thanks for any advice!
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Old Nov 15, 2018 | 08:57 PM
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Try unlocking.locking with the fob. If it won;t my guess is the locking motor or some electrical component has failed. If it does lock/unlock from the fob I would try I would try a little lube
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Old Nov 15, 2018 | 09:07 PM
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I have a MN6 and doors dont unlock until the key is pulled from ignition switch. Sounds like a door lock acutatior gone south.
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Old Nov 15, 2018 | 10:57 PM
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Moved to C5 Tech.
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Old Nov 16, 2018 | 09:29 AM
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I had this issue, they door would lock, but not unlock automatically. I replaced the relays on the board in the door, there are 2, and all works great now. There are many write-ups about how to do it.

Last edited by caddman11; Nov 16, 2018 at 09:29 AM.
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Old Nov 18, 2018 | 01:53 AM
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Probably a door-control relay going/gone bad. I had mine replaced, but still at times the driver’s side won’t unlock.
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Old Nov 18, 2018 | 10:19 AM
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I had the same problem about a year ago. After doing some troubleshooting and reading threads, I sent my door module control off to have the relays replaced. It's worked perfect ever since.
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