Also a sanity check of the J519 to kind of verify it knows the ignition switch is requesting Term 15 to be activated... in Central Electronics, go into Advance Measuring Values and search for "terminal 15" and check all the boxes. Here are the results from my 2018 Rrrrrr 5 minutes ago:
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Ignition on:
IDE02588-IDE00020 Terminal signals and start release-Terminal 15 status active
IDE02588-IDE00773 Terminal signals and start release-Terminal 15 status via CAN active
IDE02588-MAS12787 Terminal signals and start release-Terminal 15 ignition switch signal 1 active
IDE02588-MAS12788 Terminal signals and start release-Terminal 15 ignition switch signal 2 active
IDE80251-MAS06648 Head area heater-Continuation at terminal 15 on not coded/not installed
ENG116907-IDE00020 Zusaetzliche Umgebungsdaten-Terminal 15 status On
Ignition off:
IDE02588-IDE00020 Terminal signals and start release-Terminal 15 status not active
IDE02588-IDE00773 Terminal signals and start release-Terminal 15 status via CAN not active
IDE02588-MAS12787 Terminal signals and start release-Terminal 15 ignition switch signal 1 not active
IDE02588-MAS12788 Terminal signals and start release-Terminal 15 ignition switch signal 2 not active
IDE80251-MAS06648 Head area heater-Continuation at terminal 15 on not coded/not installed
ENG116907-IDE00020 Zusaetzliche Umgebungsdaten-Terminal 15 status OFF
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Pretty cut and dry, does your J519 know what is up?
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Ignition on:
IDE02588-IDE00020 Terminal signals and start release-Terminal 15 status active
IDE02588-IDE00773 Terminal signals and start release-Terminal 15 status via CAN active
IDE02588-MAS12787 Terminal signals and start release-Terminal 15 ignition switch signal 1 active
IDE02588-MAS12788 Terminal signals and start release-Terminal 15 ignition switch signal 2 active
IDE80251-MAS06648 Head area heater-Continuation at terminal 15 on not coded/not installed
ENG116907-IDE00020 Zusaetzliche Umgebungsdaten-Terminal 15 status On
Ignition off:
IDE02588-IDE00020 Terminal signals and start release-Terminal 15 status not active
IDE02588-IDE00773 Terminal signals and start release-Terminal 15 status via CAN not active
IDE02588-MAS12787 Terminal signals and start release-Terminal 15 ignition switch signal 1 not active
IDE02588-MAS12788 Terminal signals and start release-Terminal 15 ignition switch signal 2 not active
IDE80251-MAS06648 Head area heater-Continuation at terminal 15 on not coded/not installed
ENG116907-IDE00020 Zusaetzliche Umgebungsdaten-Terminal 15 status OFF
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Pretty cut and dry, does your J519 know what is up?