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B1A37F1 — Graphics unit, Voltage supply faulty
Graphics unit, Voltage supply faulty. The Taycan, Panamera (971), Panamera (972) 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 B1A37F1
How to read and clear B1A37F1
- 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 B1A37F1 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 Rear Operating Unit
| B1470F3 | Temperature - above limit value |
| B1470F4 | Temperature - below limit value |
| B156B04 | Front A/C display control head, Faulty |
| B156B16 | Front A/C display control head, Voltage too low |
| B184C00 | Release active |
| B1A37F0 | Graphics unit, Data loss in memory |
| B1A37F2 | Graphics unit, Connection to display interrupted |
| B200000 | Control unit – function restriction |
| B200100 | Control unit – wrong software version |
| B200500 | Coding |
| B2008F0 | Function restriction, temperature – above limit value |
| B201200 | Coding |
All 43 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.