P0511 Buick Idle Control System Malfunction

P0512 Buick Starter Request Circuit

Possible causes
– Open or short circuit condition
– Poor electrical connection
Tech description
For models the P0512 Buick code could be triggered by the immobilizer system. The immobilizer system is not receiving the signal from the antenna ring, replacing the antenna ring and clear the code usually takes care of the problem.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– No or hard engine start situation
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