Missing CAN-messages from HMS
â–¶ How to fix
1. Check the harness 2. Check TMS fuse 3. Check DTCs in COO and TMS (HMS is a logical node in TMS)
What you'll see
No driver-visible symptom recorded.
System reaction
Hybrid system warning is shown.
Diagnostic depth
Detection
EOL121_ECU_HMS == 0x1 No CAN335_MSG_HMS_DM1 recieved. 2 second startup grace period. Only stored when ignition is ON.
Possible cause
1. The HMS-system is not connected to the CANbus 2. Fuse for HMS is blown. 3. Trouble with gateway in COO.