DTC U0001-88: High Speed CAN Communication Bus - Bus off: Action
- Refer to the appropriate system wiring diagrams and check the power and ground connections to the module. Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the appropriate system wiring diagrams and check the CAN network circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuit as required. Clear DTC and retest