TSBs

ECM Anomaly Causes Cadillac Flash

May 10, 2022

Owners of 2016-2017 Cadillac ATS or CTS vehicles equipped with a 2.0L engine may comment about a check engine light on, a no-start condition, stall and/or reduced propulsion.

Information courtesy of Mitchell 1

Mike Mavrigian

Owners of 2016-2017 Cadillac ATS or CTS vehicles equipped with a 2.0L engine may comment about a check engine light on, a no-start condition, stall and/or reduced propulsion. During diagnosis, DTC P0606 (control module processor performance) set in the ECM. The cause maybe a software anomaly in the ECM.

If you encounter this condition, do not replace the ECM. Reprogram the ECM with the latest available software. Refer to K20 Engine Control Module Programming Setup in the service manual.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.