garajizOBD-II code · generic
U0684
Lost Communication With Catalyst Temperature Bank 1 Sensor 1
- System
- U — In-vehicle network
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does U0684 mean?
U0684 is defined as “Lost Communication With Catalyst Temperature Bank 1 Sensor 1”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Related codes
- U0683Lost Communication With Throttle/Pedal Position Sensor/Switch F
- U0685Lost Communication With Catalyst Temperature Bank 1 Sensor 2
- U0682Lost Communication With Throttle/Pedal Position Sensor/Switch E
- U0686Lost Communication With Catalyst Temperature Bank 2 Sensor 1
- U0681Lost Communication With Throttle/Pedal Position Sensor/Switch D
- U0687Lost Communication With Catalyst Temperature Bank 2 Sensor 2
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.