Mazda notes that on all models with IDS version 104 and higher, permanent DTCs are displayed. The purpose of a permanent DTC is to prevent customers from clearing them by disconnecting the battery cable in order to pass a smog check.
Mazda notes that on all models with IDS version 104 and higher, permanent DTCs are displayed. The purpose of a permanent DTC is to prevent customers from clearing them by disconnecting the battery cable in order to pass a smog check.
All PCM and TCM DTCs that turn on the check engine light can remain as a permanent DTC. They will not turn on the check engine light and cause drivability concerns.
If you encounter a permanent DTC, Mazda says ignore it and diagnose the current stored or pending DTC.
IDS will not clear permanent DTCs. They will only clear after conditions are met with some driving cycles. If you have performed a repair and a permanent DTC remains, Mazda says it is OK to release the vehicle back to the customer.
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.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, 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.
