All power door locks interior lights stopped working at the same time

Tiny
5734750999
  • MEMBER
  • 1994 BUICK LESABRE LIMITED
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 113,000 MILES
Power door locks interior lights Empire Truck quit working all at once all together. Never no other electrical problem before check uses found no problem know nothing about relays.
Wednesday, July 24th, 2019 AT 4:44 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

You need a test light or voltmeter to verify power to the relay under the driver's seat as indicated in the wiring diagram. It is possible that you either do not have power to the relay or that the relay may be the issue.

Check the fuses listed again for power on both sides with the key on.

Roy
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Wednesday, July 24th, 2019 AT 6:28 AM
Tiny
5734750999
  • MEMBER
  • 4 POSTS
Do you know where the relay would be for the power trunk release?
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Wednesday, July 24th, 2019 AT 6:57 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It is an actuator, not a relay.

I attached a picture for you. It is at the trunk lock itself. A signal is sent from the switch to the actuator to open.

Roy
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Wednesday, July 24th, 2019 AT 7:04 AM
Tiny
5734750999
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  • 4 POSTS
No relay under seat for power door locks.
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Wednesday, July 24th, 2019 AT 7:21 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Is there anything under the seat at all? Any type of module?

Roy
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Wednesday, July 24th, 2019 AT 7:28 AM

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