P0631 Buick VIN Not Programmed or Incompatible Transmission Control Module (TCM)

P0632 Buick Odometer Not Programmed or Mismatch

Possible causes
– Engine Control Module (ECM) Programming error
– Odometer not programmed to ECM
– Faulty or wrong ECM
Tech description
If a new ECM/PCM is installed in a vehicle, the mileage has to be reprogrammed to the new ECM/PCM
What about the obd code?
Mileage on odometer does not agree with mileage in Engine Control Module (ECM) or Powertrain Control Module (PCM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0632 Buick Description

On some vehicle the mileage on odometer is stored in the Engine Control Module (ECM) or Powertrain Control Module (PCM).

Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera