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Speedometer not working after replacing rear integration module

Tiny
CEDWARDS2460
  • MEMBER
  • 2002 CADILLAC DEVILLE
  • 110,000 MILES
Replaced the rear integration module due to door locks, gas cap etc, not working. All that is now working but suddenly the speedometer and odometer are not working. Could this be related to the rear module work?
Monday, August 26th, 2019 AT 6:26 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I don't think they are related. Here is a wiring diagrams for the rear integration module and I don't see anything they deals with the speedometer. So it must be the vehicle speed sensor when out. Here are the wiring diagrams for the module so you can see for yourself and the sensor location so you can change it out. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Tuesday, August 27th, 2019 AT 11:44 AM
Tiny
CEDWARDS2460
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Turns out it was a relay that got unplugged or something when they were replacing the module. Thanks for the response.
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Wednesday, August 28th, 2019 AT 9:36 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Nice work, we are here to help, please use 2CarPros anytime.
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Thursday, August 29th, 2019 AT 10:37 AM

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