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B166B02 — Motor for adjustment 2 of visual display unit, Signal error
Motor for adjustment 2 of visual display unit, Signal 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 B166B02
How to read and clear B166B02
- 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 B166B02 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 Seat Module, Driver
| B164904 | Airbag for side bolster, left, Faulty |
| B165004 | Airbag for side bolster, right, Faulty |
| B166602 | Motor for adjustment of visual display unit, Signal error |
| B166613 | Motor for adjustment of visual display unit, Open circuit |
| B16664B | Display unit adjustment motor, temperature - above limit value |
| B166654 | Motor for adjustment of visual display unit, No basic setting |
| B166B13 | Motor for adjustment 2 of visual display unit, Open circuit |
| B166B4B | Display unit adjustment motor 2, temperature - above limit value |
| B166B54 | Motor for adjustment 2 of visual display unit, No basic setting |
| B166F11 | Sensor for adjustment of visual display unit, Short circuit to ground |
| B166F29 | Sensor for adjustment of visual display unit, Implausible signal |
| B167A11 | Sensor for adjustment 2 of visual display unit, Short circuit to ground |
All 222 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.