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How To Display DTCs On the Gauge Control Module

WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
  1. Set the B-CAN System Diagnosis test Mode 1 (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE 1 AND TEST MODE 2 (WITHOUT THE HDS)  ).
  2. While in Test Mode 1, the DTCs which have been detected and stored individually by various B-CAN units, will be shown one by one on the multi-information display on the gauge control module when the communication between the MICU and the gauge control module is normal. To scroll through the DTCs, press the select/reset button.

    Information display type 

    Fig 1: Identifying Screen Display - Information Display Type
    G05966209Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Multi-information display type 

    Fig 2: Identifying Screen Display - Multi-Information Display Type
    G05966210Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. The unit that has stored the code can be identified by the number shown on the multi-information display.
    CONTROL UNIT REFERENCE TABLE

    Control Unit Control Unit I.D. Number
    MICU 10
    Gauge control module 50
    Door multiplex control unit (Power window master switch) 30
    Immobilizer-keyless control unit 96
    Climate control unit 51
    HandsFreeLink control unit 94
    Automatic lighting control unit 72
    Parking and back-up sensor control unit 9A
    Power tailgate control unit 35
    Power seat control unit 95