A/C Compressor Internal Control Module Performance
The internal control module of an electrically driven A/C compressor (typical on hybrid and BEV vehicles) reports an internal performance fault. Compressor capacity may be reduced or shut down.
Affected components
- Electric ac compressor
- Compressor inverter
Common causes
- High likelihood: Internal fault in compressor inverter electronics
- Medium likelihood: Software error in compressor control logic
- Low likelihood: Module software outdated, reflash may resolve
Possible symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.