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B1974F5 — Multimedia control head 2, Switch on/off
Multimedia control head 2, Switch on/off. The 911 (992), Panamera (971) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.
Which models and control units set B1974F5
How to read and clear B1974F5
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and B1974F5 shows with its status, its full description and the freeze frame when the unit stores one.
- Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.
More about fault memory in the manual →
Download STEUER14 — free fault readingOther codes of the MIB2 (Zentralrechner)
| B18F300 | Invalid language for log book |
| B1974F0 | Multimedia control head 2, Rotary control for menu selection |
| B1974F1 | Multimedia control head 2, Button for selection media source "MEDIA" |
| B1974F2 | Multimedia control head 2, Left arrow button |
| B1974F3 | Multimedia control head 2, Right arrow button |
| B1974F4 | Multimedia control head 2, Button for radio |
| B1974F6 | Multimedia control head 2, Play-/pause button |
| B199501 | Speaker channel 25, Electrical malfunction |
| B1995F0 | Loudspeaker channel 25 - polarity reversed |
| B1995F1 | Loudspeaker channel 25 - acoustic error |
| B1A0601 | Automotive audio bus (A2B) Master, Electrical malfunction |
| B1A06F0 | Automotive audio bus (A2B) Master, Interruption / incorrect port |
All 668 codes of this control unit →
Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.