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C103912 — Valve for rapid filling of air springs - short circuit to B+

Valve for rapid filling of air springs - short circuit to B+. 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 C103912

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear C103912

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and C103912 shows with its status, its full description and the freeze frame when the unit stores one.
  3. 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 →

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Other codes of the Chassis Control

C103711Rear vehicle leveling system sensor - short circuit to ground
C103715Rear vehicle leveling system sensor - open circuit/short circuit to B+
C103729Rear right vehicle height sensor – implausible signal
C1037F0Vehicle level sensor, rear right - rebound stop detected
C103901Valve for rapid filling of air suspension, Electrical error
C103911Level control valves - short circuit to ground
C103A11Accumulator valve for leveling system - short circuit to ground
C103A13Leveling system accumulator valve - open circuit
C103AF0Valve for rapid filling of air suspension, nmaximum activation time exceeded
C103B01Leveling system solenoid valve - electrical fault
C103B11Solenoid valve for leveling system - short circuit to ground
C103B12Solenoid valve for leveling system - short circuit to B+

All 407 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.