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DTC B1158: Gauge Control Module Lost Communication with Relay Control Module

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.
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch OFF, and then back ON (II).
  3. Check for DTCs with the HDS.

    Is DTC B1158 indicated? 

    YES  -Go to step 4.

    NO  -Intermittent failure. The gauge control system is OK at this time. Check pin fits and connections.

  4. Check for DTCs with the HDS.

    Is DTC B1005 also indicated? 

    YES  -Go to Relay Control Module Input Test (see RELAY CONTROL MODULE INPUT TEST ).

    NO  -Go to Gauge Control Module Input Test (see GAUGE CONTROL MODULE INPUT TEST ).