DTC U0001-87: High Speed CAN Communication Bus - Missing message: Action
- Refer to the electrical circuit 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 electrical circuit diagrams and check the CAN network
- Using the manufacturer approved diagnostic system, identify the module(s) responsible for the erroneous CAN signals. Check these modules for related DTCs and refer to the relevant DTC index