B3A03

A/C Refrigerant Distribution Valve Actuator C Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Air conditioner doesn't work
Reduced cooling efficiency
Fault indication on the instrument panel

Causes

Short circuit in valve control circuit
Refrigerant distribution valve C fault
Wiring harness damage
Malfunction of the climate control control unit

How to Fix

Check the integrity of the wiring harness and connections
Check resistance of refrigerant distribution valve C
Check control circuit voltage
Replace faulty valve or wiring harness
Reset the error and check the system operation

Related codes

B3A01 B3A02 B3A04