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C124FF0 — High-voltage battery control unit - procedural error while setting operating mode
High-voltage battery control unit - procedural error while setting operating mode. 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 C124FF0
How to read and clear C124FF0
- 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 C124FF0 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 Gateway
| C11CB01 | 12 V electrical system, Electrical error |
| C11CBF0 | 12 volt vehicle electrical system, Lowering not possible |
| C11E654 | 12 Volt-Energy management, No basic setting |
| C11E6F0 | 12 Volt-Energy management, incorrect basic setting |
| C1220F0 | High-voltage battery, discharging protection |
| C124EF0 | 48V-System, Locking after crash active |
| C1250F0 | Electric compressor, Sequence error during operating mode setting |
| C1251F0 | Roll stabilization, Sequence error during operating mode setting |
| C128EF0 | Control module for contactless charge, Sequence error during operating mode setting |
| C129AF0 | High-voltage power electronics (front axle) - procedural error while setting operating mode |
| C129BF0 | Electric drive 3, Sequence error during operating mode setting |
| C12A1F0 | Front-axle roll stabilization system - procedural error while setting operating mode |
All 374 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.