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B131FF4 — Rear window regulator, driver side, Upper supply voltage limit exceeded
Rear window regulator, driver side, Upper supply voltage limit exceeded. The Taycan, 911 (992), 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 B131FF4
How to read and clear B131FF4
- 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 B131FF4 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 Door Module, Driver
| B131629 | Mirror selector switch, Implausible signal |
| B131701 | Automatic dimming outside mirror, Electrical malfunction |
| B131B29 | Interior monitoring/vehicle inclination sensor button, Implausible signal |
| B131F01 | Rear window regulator, driver side, Electrical error |
| B131F54 | Rear window regulator, driver side, No basic setting |
| B131FF2 | Rear window regulator, driver side, not coded |
| B131FF5 | Rear window regulator, driver side, Voltage supply lower limit not reached |
| B131FF6 | Rear window regulator, driver side, invalid data record |
| B132101 | Driver side rear window regulator motor, Electrical error |
| B132102 | Driver side rear window regulator motor, Signal error |
| B132129 | Driver side rear window regulator motor, Implausible signal |
| B13214B | Driver side rear window regulator motor, Excess temp. |
All 107 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.