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B126215 — Washer pump for night vision system/ACC – short circuit to B+ or open circuit

Washer pump for night vision system/ACC – short circuit to B+ or open circuit. 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 B126215

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B126215

  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 B126215 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 Central Electrics

B121F11Left fog light bulb, Short circuit to ground
B121F15Left fog light bulb, Open circuit/short circuit to B+
B122011Right fog light bulb, Short circuit to ground
B122015Right fog light bulb, Open circuit/short circuit to B+
B126111Windshield washer pump/rear camera – short circuit to ground
B126211Night vision/ACC washer pump – short circuit to ground
B126611Rear window defogger button, Short circuit to ground
B126629Rear window defogger button, Implausible signal
B126A04Main light switches – defective
B126A29Main light switches – signal implausible
B126AF0Main light switches – button status implausible
B126AF1Main light switches – button status implausible

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.