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B170801 — Left head area heater button, Electrical error
Left 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 B170801
How to read and clear B170801
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and B170801 shows with its status, its full description and the freeze frame when the unit stores one.
- 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 readingOther codes of the Central Electrics
| B170001 | Indicator lamp for cupholder heating function, Electrical error |
| B170101 | Indicator lamp for cupholder cooling function, Electrical error |
| B170401 | Interior lighting button – electrical fault |
| B170501 | Button for rear reading light – electrical fault |
| B170601 | Button for front left reading light – electrical fault |
| B170701 | Button for front right reading light – electrical fault |
| B170901 | Right head area heater button, Electrical error |
| B170B29 | Marker light button – signal implausible |
| B171029 | A/C compressor speed sensor, Implausible signal |
| B171101 | Light for residual heat display of beverage holder, Electrical error |
| B171201 | PASM button – electrical fault |
| B174312 | Release line for external systems, Short circuit to B+ |
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.