U044A
Invalid Data Received From Serial Data Gateway Module D
U044A is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Serial Data Gateway Module D. Common causes: data gateway module d fault, damage to the can bus or its connectors. Estimated repair cost: $56–167.
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
Error U044A by Vehicle Brand
FAQ
What does the U044A code mean?
U044A is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Serial Data Gateway Module D
What causes a U044A error code?
The most common causes of U044A include: Data Gateway Module D fault; Damage to the CAN bus or its connectors; Gateway Module Power Problems; Corrosion or oxidation of contacts.
How do I fix a U044A diagnostic trouble code?
To fix U044A: 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. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U044A?
Yes, but get it checked soon
How much does it cost to fix U044A?
The estimated repair cost for U044A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat