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B10BF29 — Rear heater/fresh-air blower - message implausible

Rear heater/fresh-air blower - message implausible. The Taycan, 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 B10BF29

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B10BF29

  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 B10BF29 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 Air Conditioning

B10BE4BFront heater/fresh-air blower - overtemperature
B10BE96Front heater/fresh-air blower faulty
B10BF13Rear heater/fresh-air blower - open circuit
B10BF16Rear heater/fresh-air blower - overvoltage
B10BF17Rear heater/fresh-air blower - undervoltage
B10BF1DRear heater/fresh-air blower - overcurrent
B10BF31Rear heater/fresh-air blower - no communication
B10BF4BRear heater/fresh-air blower - overtemperature
B10BF96Rear heater/fresh-air blower - faulty
B10C004Electric auxiliary heater (12V) - fault
B10C904Servomotor for left door window vent – defective
B10C909Servomotor for door window left air vent – component fault

All 418 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.