A/C Refrigerant Distribution Valve A Control Circuit Low
Voltage on the A/C distribution valve A control line is below the expected window. Usually a short to ground or a shorted solenoid coil.
Affected components
- Ac distribution valve a
- Valve solenoid
- Wiring harness
Common causes
- High likelihood: Control wire shorted to ground
- Medium likelihood: Internal short in the valve solenoid
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
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.