U0554

Invalid Data Received From Accessory Protocol Interface Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect operation of the multimedia system
Problems with climate control
Error messages on the dashboard
Failure of some comfort functions
Intermittent operation of additional equipment

Causes

Accessory Interface Module Failure
Problems with the wiring harness or connectors
Short circuit in the circuit
Module software error
Module power problems

How to Fix

Check connections and integrity of wiring harness
Check power supply and grounding of the module
Scan the module for additional errors
Update or reflash module software
Replace the accessory interface module if necessary

Related codes

U0555 U0553 U0556