Speedometer not working after replacing rear integration module

2002 CADILLAC DEVILLE
110,000 MILES
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CEDWARDS2460
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  • 2 POSTS
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?
Aug 25, 2019 at 11:26 PM
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STRAILER
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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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Aug 27, 2019 at 4:44 AM
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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.
Aug 28, 2019 at 2:36 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,562 POSTS
Nice work, we are here to help, please use 2CarPros anytime.
Aug 29, 2019 at 3:37 AM
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