Ram control unit: cannot be encoded / no sound output.
BMW technical service bulletin B090318 for 2019 BMW X5 and 2018 BMW 8 Series.
- Bulletin number
- B090318
- Component
- Equipment: electrical
- Summary
- RAM CONTROL UNIT: CANNOT BE ENCODED / NO SOUND OUTPUT. After programming the RAM (audio amplifier) one of the following errors may occur: 1. Coding of the RAM-01 audio amplifier fails repeatedly. 2. The RAM-01 audio amplifier was successfully programmed and encoded with ISTA. However after the vehicle goes to sleep, the sound output no longer works. The root cause for this error is still under investigation.
Vehicles covered
- BMW X5 2019 2019
- BMW 8 Series 2018 2018
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