SSM 54316

Some 2026 Transit vehicles may exhibit diagnostic trouble code (DTC) B15E0:01 stored in the body control module (BCM) when a diagnostic self-test is performed. If there are no observable symptoms, the DTC may not clear and no further action is required. Replacement and/or programming of the BCM will not resolve this condition. If there is an observable symptom follow normal workshop manual diagnosis. Refer to the Workshop Manual (WSM), Section 419-10 Multifunction Electronic Modules > Diagnosis and Testing > Pinpoint test Q.