Home › Fault codes › B166911
B166911 — Wiper storage/spray nozzle heater, Short circuit to ground
Wiper storage/spray nozzle heater, Short circuit to ground. 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 B166911
How to read and clear B166911
- 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 B166911 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 Central Electrics
| B165415 | Right side marker bulb 2, Open circuit/short circuit to B+ |
| B165611 | Low heat output relay, Short circuit to ground |
| B165615 | Low heat output relay, Open circuit/short circuit to B+ |
| B165711 | High heat output relay, Short circuit to ground |
| B165715 | High heat output relay, Open circuit/short circuit to B+ |
| B1658F0 | Front seat heating – function restriction due to overtemperature |
| B166915 | Wiper storage/spray nozzle heater, Open circuit/short circuit to B+ |
| B167011 | Signal horns – short circuit to ground |
| B167015 | Tweeter/woofer signal horn – short circuit to B+ or open circuit |
| B167600 | Theft left head light detected |
| B167700 | Theft right head light detected |
| B169556 | Left rear vehicle leveling sensor, invalid system configuration |
All 1472 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.