OBD-II code · generic
U3020
Control Module Wake-up Circuit B High
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U3020 mean?
U3020 is defined as “Control Module Wake-up Circuit B High”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U301FControl Module Wake-up Circuit B Low
- U3021Control Module Wake-up Circuit B Performance
- U301EControl Module Wake-up Circuit B/Open
- U3022Ignition Input Accessory/Off
- U301DControl Module Wake-up Circuit A Performance
- U3023Control Module Input Power Circuit A - Ignition Input On/Start Circuit Correlation
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.