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B122307 — Rear wiper motor – mechanical fault

Rear wiper motor – mechanical fault. 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 B122307

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B122307

  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 B122307 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 Comfort System Module

B11EB13Outer right rear direction indicator light – open circuit
B11EB15Outer rear right direction indicator light – short circuit to B+ or open circuit
B121511Luggage compartment lights (terminal 58xs) – short circuit to ground
B121512Luggage compartment lights (terminal 58xs) – short circuit to B+
B121513Luggage compartment lights (terminal 58xs) – open circuit
B121515Luggage compartment lights (terminal 58xs) – short circuit to B+ or open circuit
B122311Rear wiper motor – short circuit to ground
B122312Rear wiper motor – short circuit to B+
B122313Rear wiper motor – open circuit
B126301Filler flap lock motor – electrical fault while unlocking
B126511Rear window heating relay – short circuit to ground
B126515Rear window heating relay – short circuit to B+ or open circuit

All 616 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.