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C1187F7 — Brake booster – current too high
Brake booster – current too high. 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 C1187F7
How to read and clear C1187F7
- 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 C1187F7 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 Brake Booster
| C057A00 | Brake booster temperature sensor 2 - short circuit to B+ |
| C058800 | Motor position sensor for brake booster - short circuit to ground |
| C058900 | Motor position sensor for brake booster - short circuit to B+ |
| C058A00 | Motor position sensor for brake booster - implausible signal |
| C114113 | Terminal 30, Open circuit |
| C118796 | Brake booster, internal fault |
| C1187F8 | Brake booster, brake pedal, block detected |
| C1187F9 | Brake booster, distance sensor, implausible value |
| C1187FA | Brake booster, incompatible hardware detected |
| C118816 | Brake booster – voltage too low |
| C1188F1 | Brake booster – overheating stage 1 active |
| C1188F2 | Brake booster – overheating stage 2 active |
All 55 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.