Home › Fault codes › B170901

B170901 — Right head area heater button, Electrical error

Right head area heater button, Electrical error. 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 B170901

Porsche Taycan

Central Electrics

Porsche 911 (992)

BCM1 (Body Control Module 1)

Porsche Panamera (971, 2017–2023)

BCM1 (Body Control Module 1)

Porsche Panamera (972, 2024–)

BCM1 (Body Control Module 1)

Porsche Cayenne (9YA)

BCM1 (Body Control Module 1)

How to read and clear B170901

  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 B170901 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 Central Electrics

B170101Indicator lamp for cupholder cooling function, Electrical error
B170401Interior lighting button – electrical fault
B170501Button for rear reading light – electrical fault
B170601Button for front left reading light – electrical fault
B170701Button for front right reading light – electrical fault
B170801Left head area heater button, Electrical error
B170B29Marker light button – signal implausible
B171029A/C compressor speed sensor, Implausible signal
B171101Light for residual heat display of beverage holder, Electrical error
B171201PASM button – electrical fault
B174312Release line for external systems, Short circuit to B+
B174B04Left air vent cover motor, faulty

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.