Communication with COO node is interrupted or missing.
â–¶ How to fix
• Check if other ECUs have similar DTCs related to missing COO. • Check the COO for related DTCs. • If SDP3 cannot connect to COO, the fault is most likely in the COO or the orange CAN bus. - E.g. check the fuses, connectors, and cable harness. • Check cable harness and connectors on the ACS unit if additional DTCs related to missing communication are active (GMS, BMS, ICL)
What you'll see
No driver-visible symptom recorded.
System reaction
Red ACS stop lamp Speed & Torque Limitation
Diagnostic depth
Detection
Communication with the Coordinator (COO) has timed out (communication interrupted).
Possible cause
• Faulty COO unit • COO unit disconnected from the orange CAN bus • ACS unit disconnected from the orange CAN bus