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B147101 — Top tailgate proximity sensor – electrical fault

Top tailgate proximity sensor – electrical 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 B147101

Porsche Taycan

Comfort System Module

Porsche 911 (992)

BCM2 (Body Control Module 2)

Porsche Panamera (971, 2017–2023)

BCM2 (Body Control Module 2)

Porsche Panamera (972, 2024–)

BCM2 (Body Control Module 2)

Porsche Cayenne (9YA)

BCM2 (Body Control Module 2)

How to read and clear B147101

  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 B147101 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

B146E15Sensor for intermediate catch on tailgate lock S2 – short circuit to B+ or open circuit
B146F29Button for rear spoiler adjustment, Implausible signal
B147004Control unit – function restriction
B147016Supply voltage – too low
B147017Supply voltage – too high
B1470F0Rear spoiler adjustment control module, local activation active
B147204Control unit for windshield heating – faulty
B147216Control unit for windscreen heating – voltage too low
B147217Control unit for windscreen heating – voltage too high
B147298Control unit for windshield heating – temperature too high
B147301Windshield heating – electrical fault
B14731AWindshield heating – resistance too low

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.