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.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Partial short in valve coilCommon
- Module overheating from poor coolingPossible
Parts involved
- AC Distribution Valve A
- Control Module
P266F is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.