P2639 Buick Torque Management Feedback (Signal A) Low

P2640 Buick Torque Management Feedback (Signal A) High

OBD Code:
System:
Subsystem:
 P2640 Buick – (ASE)
 Powertrain
 Computer and Auxiliary Output Circuits

Trouble Code Description: Torque Management Feedback (Signal A) High


Location:
Analysis:

Possible Causes:

 Signal A
 Signal Too High

 

Tech description:

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