U0001-88: High Speed CAN Communication Bus - Bus off: Action
- Using the manufacturer approved diagnostic system carry out network integrity test
- Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check high speed CAN network for short circuit to ground, short circuit to power, open circuit
- Using the manufacturer approved diagnostic system, check terrain response switchpack for DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system, complete a CAN network integrity test. Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check terrain response switchpack power and ground circuits for open circuit. Check CAN harness between engine control module and terrain response switchpack, repair as necessary