B3A13

A/C Refrigerant Distribution Valve A Actuator Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced air conditioner efficiency
Uneven interior cooling
Complete failure of the air conditioning system

Causes

Open or short circuit in wiring harness
Solenoid valve malfunction
Problems with the air conditioning control unit
Corrosion of contacts or connectors

How to Fix

Check the integrity of the wiring harness and contacts
Test solenoid valve resistance
Check the operation of the air conditioning control unit
Replace faulty components

Related codes

B3A14 B3A15 B3A16