OBD Guide

U016B

Lost Communication With A/C Compressor Control Module

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Air conditioner doesn't work
  • Check Engine Light Is On
  • The air conditioner cannot be turned on from the control panel
  • Intermittent operation of the air conditioner before the error appears

Causes

  • Open or short circuit in the module power supply circuit
  • Damage to the wiring harness to the module
  • Compressor control module malfunction
  • Problems with the CAN bus
  • Oxidation of contacts in connectors

How to Fix

  1. Check fuses associated with the air conditioning system
  2. Inspect the wiring harness and connectors for damage.
  3. Check power and ground on the control module
  4. Scan the CAN bus for errors
  5. If necessary, replace the compressor control module

Related codes

Error U016B by Vehicle Brand