Using the B-CAN System Diagnosis Test Mode 1 (Use Only If the HDS is Unavailable)

Check for communication circuit problems using B-CAN System Diagnostic Test Mode 1 (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS) ).
Check for DTCs.
Sort, and then troubleshoot the DTCs in this order.
1. Battery voltage DTCs
2. Internal error DTCs
3. Loss of communication DTCs
  NOTE: If DTC B1000 is stored, troubleshoot DTC B1000 first.
4. Signal error DTCs
If no DTCs are found, use B-CAN System Diagnostic Test Mode 2 to check all inputs related to the failure (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS) ).