garajizOBD-II code · manufacturer-specific
U2023
Fault received from external node
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U2023 mean?
U2023 is defined as “Fault received from external node”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Ford: Fault received from external node
Related codes
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This page is general information; an exact diagnosis needs measurements and a technician’s check.