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Don't Assume Bad ECM With Nissan

March 12, 2021

This bulletin applies to all 2009 and newer Nissan vehicles equipped with ASCD (automatic speed control device).

This bulletin applies to all 2009 and newer Nissan vehicles equipped with ASCD (automatic speed control device). Improper adjustment or operation of the ASCD brake switch can cause the automatic speed control device to not set and/or DTC P0605 to store in the ECM. If a malfunction in the ASCD system is detected, the “Cruise” indicator may stay on and the “Set” indicator may flash.

Before replacing the ECM for a DTC P0605, first check the ASCD brake switch for proper operation and adjustment.

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.