Home › Fault codes › B145317
B145317 — Electric A/C compressor – function restriction due to overvoltage
Electric A/C compressor – function restriction due to overvoltage. 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 B145317
How to read and clear B145317
- 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 B145317 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 Thermal Management
| B10D031 | Coolant pump - no signal |
| B10D098 | Coolant pump - temperature too high |
| B10D0F0 | Coolant pump - dry run |
| B138100 | Function restriction due to energy management |
| B139700 | Function restriction, crash signal |
| B145316 | Electric A/C compressor – function restriction due to undervoltage |
| B14534B | Electric A/C compressor – function restriction due to overtemperature protection |
| B1453F0 | Electric air-conditioning compressor (V470) - motor, high-voltage supply error |
| B1453F1 | Electric A/C compressor – power output fault |
| B1453F2 | Electric air-conditioning compressor (V470), temperature shutdown |
| B1453F3 | Electric air-conditioning compressor (V470) – overload protection active |
| B148421 | LIN bus 1 – not taught |
All 636 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.