U044A

Invalid Data Received From Serial Data Gateway Module D

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Malfunctions of various vehicle systems
Lost connection with some modules
Unstable engine operation
Problems with diagnostics via OBD-II

Causes

Data Gateway Module D fault
Damage to the CAN bus or its connectors
Gateway Module Power Problems
Corrosion or oxidation of contacts
Software error in the module

How to Fix

Check the integrity of the CAN bus and its connectors
Check power and grounding of the gateway module
Scan all modules for additional error codes
Replace the data gateway module if necessary
Update module software (if available)

Related codes

U044B U044C U0401