Home › Fault codes › B116A04

B116A04 — Servo motor for rear right temperature mixing flap, faulty

Servo motor for rear right temperature mixing flap, faulty. 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 B116A04

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B116A04

  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 B116A04 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

B110E01Temperature sensor in rear left footwell - electrical fault
B110F01Temperature sensor in rear right footwell - electrical fault
B116904Servo motor for rear left temperature mixing flap, faulty
B116909Servo motor for rear left temperature mixing flap - component fault
B116929Servo motor for rear left temperature mixing flap - message implausible
B116931Servo motor for rear left temperature mixing flap - no communication
B116A09Servo motor for rear right temperature mixing flap - component fault
B116A29Servo motor for rear right temperature mixing flap - message implausible
B116A31Servo motor for rear right temperature mixing flap - no communication
B11E304Front air ionizer, faulty
B11E329Front air ionizer - message implausible
B11E331Air ionizer, front - no communication

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.