P0701 Buick Mitsubishi EEPROM System Malfunction

P0702 Buick Transmission Control Module

Possible causes
– Faulty Transmission Control Module
– Transmission Control Module harness is open or shorted
– Transmission Control Module circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0702 Buick Description

The code is triggered by the Engine Control Module (ECM) when there is a code stored in the Transmission Control Module (TCM)

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