OBD-II code · Powertrain (generic, extended)

P266F A/C Refrigerant Distribution Valve A Control Circuit Driver Current/Temperature Too High

The driver stage for the A/C refrigerant distribution valve A is in current limit or over-temperature. Sustained overload from a partially shorted load or excessive switching frequency.

Is it safe to drive with P266F?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyPartial short in valve coil
  • PossibleModule overheating from poor cooling

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
1–4 h
Emissions test
Usually unaffected
Parts involved
AC Distribution Valve A, Control Module

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.