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Home >> Acura >> 2005 >> RL >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (Multiplex Integrated Control System) >> General Troubleshooting Information >> Troubleshooting CAN Circuit Related Problems >> Without HDS (Use only if the HDS is unavailable)
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Without HDS (Use only if the HDS is unavailable)

WARNING: This page is about a different car, the 2008 Acura TL and 2007 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 Diagnosis Test Mode 1 (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)  ).
  2. Check for DTCs while in Mode 1 (see GAUGE CONTROL MODULE DTC DISPLAY  ).
    NOTE: If the problem is related to the display panel control unit or HandsFreeLink system, check for DTCs first with their own self-diagnostic function.
  3. Sort, and then troubleshoot the DTCs in the order below.
    1. Battery voltage DTCs
    2. Internal error DTCs
    3. Loss of communication DTCs (beginning with the lowest number first; for example, if B1006 and B1059 are retrieved, troubleshoot B1006 first)
    4. Signal error DTCs
  4. If no DTCs are retrieved, use B-CAN System Diagnosis Test Mode 2 to check all inputs related to failure (see step 11 on TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)  ).