P265F
Variable A/C Compressor Control Circuit Range/Performance
The variable-displacement A/C compressor control valve does not respond to commands within tolerance. Refrigerant flow regulation is degraded so cabin temperature varies or efficiency drops.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Control valve spool sticky from oil residueCommon
- Solenoid coil resistance driftPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- AC Compressor Control Valve
- AC Compressor
P265F 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.