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P261100 — Refrigerant circuit shut-off valve (EAV2) – fault
Refrigerant circuit shut-off valve (EAV2) – fault. 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 P261100
How to read and clear P261100
- 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 P261100 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
| P218500 | Temperature sensor for high-temperature circuit (TW11) – short circuit to B+ |
| P251500 | Refrigerant circuit sensor on low pressure side (PT2) – fault |
| P251600 | Refrigerant circuit sensor on low pressure side (PT2) – pressure implausible |
| P260000 | Coolant pump – open circuit |
| P260200 | Coolant pump – short circuit to ground |
| P260300 | Coolant pump – short circuit to B+ |
| P261200 | Refrigerant circuit shut-off valve (EAV2) – voltage too low |
| P261300 | Refrigerant circuit shut-off valve (EAV2) – voltage too high |
| P261A00 | Additional coolant pump (P5) – open circuit |
| P261C00 | Additional coolant pump (P5) – short circuit to ground or open circuit |
| P261D00 | Additional coolant pump (P5) – short circuit to B+ |
| P261E00 | Additional coolant pump (P5) – blocked |
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.