U062E

Lost Communication With A/C Refrigerant Expansion Valve Actuator

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Air conditioner doesn't work
Reduced cooling efficiency
Fault indication on the instrument panel
Noise during operation of the air conditioning system
Periodic turning on/off of the air conditioner

Causes

Open or short circuit in control circuit
Valve actuator malfunction
Poor contact in the connector
Wiring harness damage
Malfunction of the air conditioning control unit

How to Fix

Check valve control circuit integrity
Inspect connectors and contacts for corrosion or damage
Check actuator resistance
Scan the system for additional errors
If necessary, replace the expansion valve or repair the wiring

Related codes

U062F U0630 U0631