Code result

U062E

Lost Communication With A/C Refrigerant Expansion Valve Actuator

Moderate severity

What it means

The vehicle bus reports loss of communication with smart A/C refrigerant expansion valve actuator (electronic expansion valve, EXV). Refrigerant flow into the evaporator cannot be modulated.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Bus wiring open or shorted

    high

    One of the most commonly reported causes for this code — check this first.

  • Module without power or ground

    medium

    A plausible cause — test and verify before replacing parts.

  • Module failed

    medium

    A plausible cause — test and verify before replacing parts.

Get the full diagnosis

Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.

Diagnose U062E free

No credit card required