U0400 Buick Invalid Data Received

U0401 Buick Invalid Data Received From Engine Control Module (ECM) / Powertrain Control Module (PCM) A

OBD Code:
System:
Subsystem:

U0401 Buick – (ASE)
Network Communication
Auxiliary Emission Controls

Trouble Code Description: Invalid Data Received From Engine Control Module (ECM) / Powertrain Control Module (PCM) A

Location:
Analysis:

Possible Causes:

Engine Control Module (ECM) / Powertrain Control Module (PCM) A
Invalid Data Received from Control Module

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