garajizOBD-II code · generic
U0639
Lost Communication With Hybrid/EV Electronics Coolant Temperature Sensor B
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U0639 mean?
U0639 is defined as “Lost Communication With Hybrid/EV Electronics Coolant Temperature Sensor B”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U0638Lost Communication With Hybrid/EV Electronics Coolant Temperature Sensor A
- U063ALost Communication With Hybrid/EV Electronics Coolant Temperature Sensor C
- U0637Lost Communication With Hybrid/EV Battery Pack Coolant Control Valve B
- U063BLost Communication With Coolant Bypass Valve Actuator A
- U0636Lost Communication With Hybrid/EV Battery Pack Coolant Control Valve A
- U063CLost Communication With Coolant Bypass Valve Actuator B
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.