DTC U1A00-88: Private Communication Network - Bus off: Action
- The speed control module setting this code has disabled private CAN transmission
- Using the manufacturer approved diagnostic system, check for other bus off codes
- Refer to the appropriate system wiring diagrams and check the speed control module and circuits
- Clear all diagnostic trouble codes and road test the vehicle
- If the concern reoccurs contact dealer technical support for further advice. Under no circumstance should any parts be replaced to overcome this issue