U010FLost Communication With Air Conditioning Control Module
- Generic OBD-II code · Network
- How the car detects it
- U010F is logged when the air conditioning control module stops reporting. J2012 keeps it apart from the HVAC control module (U0164): the A/C unit governs the refrigerant side, such as compressor clutch or electric compressor drive and pressures, while the HVAC module handles blower, flaps and temperature choice. Saab's 2011 code lists for the 9-5 and 9-4x carry U010F 00 next to U0164 00, which documents GM/Saab use. Neither list gives a threshold; Saab's general U0100–U02FF procedure applies, a missing state-of-health message at 9–16 V. The compressor then usually stays off, so cooling and demisting are lost; the engine is not affected and no MIL is expected. U040A covers invalid data from the same module.
- What you may notice
- Air conditioning does not cool
- Windows fog up, demisting weak
- No MIL
- Likely causes
- LikelyA/C module without power or ground (fuse, connector)
- PossibleDamaged bus lines to the A/C module
- PossibleCondensate or water at module or connector
- RareA/C module internally faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.