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B10D709 — Left side window defroster door motor, Component defect
Left side window defroster door motor, Component defect. 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 B10D709
How to read and clear B10D709
- 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 B10D709 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 Air Conditioning
| B10D431 | Servo motor for rear right center vent - no communication |
| B10D604 | Servo motor for temp. premixing valve, rear - faulty |
| B10D609 | Servo motor for temp. premixing valve, rear - component fault |
| B10D629 | Servo motor for temp. premixing valve, rear - message implausible |
| B10D631 | Servo motor for temp. premixing valve, rear - no communication |
| B10D704 | Left side window defroster door motor, Faulty |
| B10D729 | Servo motor for defroster flap for left side window - message implausible |
| B10D731 | Servo motor for defroster flap for left side window - no communication |
| B10D804 | Right side window defroster door motor, Faulty |
| B10D809 | Right side window defroster door motor, Component defect |
| B10D829 | Servo motor for defroster flap for right side window - message implausible |
| B10D831 | Servo motor for defroster flap for right side window - 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.