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B15EB12 — Voltage supply for rear parking aid sensor, Short circuit to B+

Voltage supply for rear parking aid sensor, Short circuit to B+. The Taycan, 911 (992), 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 B15EB12

Porsche Taycan

Front Assist Camera

Porsche 911 (992)

ZFAS (Zentrales Fahrer Assistenz System)

Porsche Panamera (972, 2024–)

ZFAS (Zentrales Fahrer Assistenz System)

Porsche Cayenne (9YA)

ZFAS (Zentrales Fahrer Assistenz System)

How to read and clear B15EB12

  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 B15EB12 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 →

Download STEUER14 — free fault reading

Other codes of the Front Assist Camera

B127F54Side camera (right), calibration
B127FF0Side camera (right), calibration
B127FF2Right environmental camera, optical malfunction
B13B901Video wire for information electronics 1, Electrical error
B13C629Power sunroof control module, Implausible signal
B13CFF1Pause recommendation, Status feedback for HMI implausible
B15EB14Voltage supply for rear parking aid sensor, Open circuit/short circuit to ground
B15EC12Voltage supply for front parking aid sensor, Short circuit to B+
B15EC14Voltage supply for front parking aid sensor, Open circuit/short circuit to ground
B163002Function restriction, route data not loaded
B16FB29Automated driving button, Implausible signal
B170AF1Data synchronization for image processing not complete

All 336 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.