U0001-87: High Speed CAN Communication Bus - Missing message: 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 front audio control panel, button module 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 front audio control panel, button module power and ground circuits for open circuit. Check CAN harness between engine control module and front audio control panel, button module, repair as necessary