U046C

Invalid Data Received From A/C Compressor Control Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Air conditioner won't turn on
Unstable operation of the air conditioning system
Check Engine light comes on
Increased fuel consumption
Loss of power when turning on the air conditioner

Causes

Malfunction of the air conditioning compressor control module
Damage to the wiring harness to the module
Poor contact in connectors
Software error in the module
Module power problems

How to Fix

Check the connections and connectors of the control module
Test the integrity of the wires to the module
Check the power supply and ground of the module
Scan the module for errors
If necessary, replace the compressor control module

Related codes

U046B U046D U046E