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Using the B-CAN System Diagnosis Test Mode 1 (Use only if the HDS is unavailable)

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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) )
  2. Check for DTCs
  3. If there are DTCs stored, sort them, and then troubleshoot the DTCs in this order
    1. -1 Battery voltage DTCs
    2. -2 Internal error DTCs
    3. -3 Loss of communication DTCs
      NOTE: If DTC U1280 is stored, troubleshoot DTC U1280 first (see DTC U1280: Communication bus Line Error (BUS-OFF) )
    4. -4 Signal error DTCs
  4. If no DTCs are retrieved, 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) )
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