OBD Guide

U0596

Invalid Data Received From AC/AC Converter Control Module

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • The air conditioning system does not work
  • Occurrence of other electrical faults
  • Check engine light comes on
  • Reduced efficiency of electrical equipment

Causes

  • AC/AC converter control module faulty
  • Open or short circuit in the communication circuit
  • Module power problems
  • Software errors in the module
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of the wiring harness to the module
  2. Check the power supply and ground of the module
  3. Scan the module for additional errors
  4. Update module software (if possible)
  5. Replace AC/AC converter control module if necessary

Related codes

Error U0596 by Vehicle Brand