U0237Lost Communication With Digital Audio Control Module C
- Generic OBD-II code · Network
- How the car detects it
- U0237 means a third digital audio unit, module C, has gone silent. Ford uses the code in its newer infotainment layout: SSM 49737 (Mustang Mach-E 2021) and its follow-up SSM 51778 (2020-2022 Escape, Edge, Explorer, Expedition, F-150, Mach-E) list U0237 and U0238 when the speakers fall silent, chimes move to the instrument cluster and neither the ACM (audio control module) nor the digital signal processor (DSP) answers. The cause there is DSP software; the fix is a hard reset by disconnecting the 12 V battery and a DSP reflash. GM fills the slot differently: Saab's 2011 list names U0237 Multimedia Player Interface Module. U0238 is module D, U0193/U0194 are A and B, U0538 covers invalid data. No sound, no MIL.
- What you may notice
- No sound from the speakers
- Warning chimes only from the instrument cluster
- Likely causes
- LikelyAudio DSP software hung or outdated (Ford SSM 49737/51778)
- PossibleAudio module without power (fuse, connector)
- RareDigital audio module C faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.