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P261300 — Refrigerant circuit shut-off valve (EAV2) – voltage too high

Refrigerant circuit shut-off valve (EAV2) – voltage too high. The Taycan, 911 (992), 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 P261300

Porsche Taycan

Thermal Management

Porsche 911 (992)

TME (Thermomanagement)

Porsche Panamera (972, 2024–)

TME (Thermomanagement)

Porsche Cayenne (9YA)

TME (Thermomanagement)

How to read and clear P261300

  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 P261300 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 →

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Other codes of the Thermal Management

P251600Refrigerant circuit sensor on low pressure side (PT2) – pressure implausible
P260000Coolant pump – open circuit
P260200Coolant pump – short circuit to ground
P260300Coolant pump – short circuit to B+
P261100Refrigerant circuit shut-off valve (EAV2) – fault
P261200Refrigerant circuit shut-off valve (EAV2) – voltage too low
P261A00Additional coolant pump (P5) – open circuit
P261C00Additional coolant pump (P5) – short circuit to ground or open circuit
P261D00Additional coolant pump (P5) – short circuit to B+
P261E00Additional coolant pump (P5) – blocked
P261F00Coolant pump – blocked
P266F00Refrigerant circuit shut-off valve (EAV2) – temperature too high

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.