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P2D2C00 — High-temperature circuit – temperature implausible (TW11/TW12)
High-temperature circuit – temperature implausible (TW11/TW12). 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 P2D2C00
How to read and clear P2D2C00
- 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 P2D2C00 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
| P2C6800 | Coolant pump (P1) – blocked |
| P2C7200 | Medium-temperature circuit for drive, rear – cooling power too low |
| P2CD400 | Sensors for refrigerant circuit (PT1/PT2/PT3) – pressure signal deviation too large |
| P2D2900 | Electric air-conditioning compressor (V470) - motor, mechanical block |
| P2D2A00 | Medium-temperature circuit – temperature implausible (TW5/TW9/TW10) |
| P2D2B00 | Low-temperature circuit – temperature implausible (TW7/TW8) |
| P2D3800 | Low-temperature circuit for high-voltage battery – heating performance too low |
| P2D4200 | Electric air-conditioning compressor (V470) - control unit, 12V supply voltage too low |
| P2D4300 | Electric air-conditioning compressor (V470) - control unit, – 12V supply voltage too high |
| P2D4400 | Electric air-conditioning compressor (V470) – overload protection active |
| P2E7C00 | Electric air-conditioning compressor (V470) - temperature sensor 2, interruption |
| P2E7D00 | Electric air-conditioning compressor (V470) - temperature sensor 2, implausible signal |
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.