B3A02

A/C Refrigerant Distribution Valve Actuator C Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Air conditioner malfunction
Reduced cooling efficiency
Uneven distribution of cold air

Causes

Open or short circuit in wiring harness
Solenoid valve malfunction
Problems with the control unit
Poor contact in connectors

How to Fix

Check the wiring harness for damage
Check the resistance of the solenoid valve
Check voltage at valve connectors
Replace faulty valve or wiring harness
Reset the error and check the system operation

Related codes

B3A01 B3A03 B3A04