OBD-II code · generic
U0630
Lost Communication With Engine Coolant Temperature Sensor 4
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U0630 mean?
U0630 is defined as “Lost Communication With Engine Coolant Temperature Sensor 4”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U062FLost Communication With Coolant Pump C
- U0631Lost Communication With Engine Coolant Temperature Sensor 5
- U062ELost Communication With A/C Refrigerant Expansion Valve Actuator
- U0632Lost Communication With Fan 1
- U062DLost Communication With A/C Refrigerant Distribution Valve Actuator “D”
- U0633Lost Communication With Fan 2
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.