1996 Pontiac Grand Am Repair Question
Topics covered: Miscellaneous.
Mileage: 184,500 miles.
Mileage: 184,500 miles.
Asked on February 28, 2012
What is OBD II code P1406 and how can I fix it?
I just bought a1996 Pontiac Grand Am Gt with the 3100 V6. It has a few problems that I can fix that are easy, but and thankfully it only has one code coming up and that is P1406. I have tried to look up this code but I am getting no were quick. Can you help me figure out what this is and how I might be able to fix the problem. Thank you
Asked by Nate_81Answer
Replied on February 28, 2012
P1406 – Heated Catalyst Internal Control Module Checksum/ROM Error
this is a code for ecm computer internal failure
