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Home >> Acura >> 2012 >> MDX >> Repair and Diagnosis >> Electrical >> Gauges >> Blind Spot Information System (BSI) >> DTC Troubleshooting >> DTC U0155: Lost Communication with the Gauge Control Module

DTC U0155: Lost Communication with the Gauge Control Module

  1. Clear the DTCs  with the HDS (see General Troubleshooting Information  ).
  2. Turn the ignition switch to ON (II), then wait for 10 seconds.
  3. Check for DTCs  with the HDS (see General Troubleshooting Information  ).

    Is DTC U0155 indicated? 

    YES  -Go to step 4.

    NO  -Intermittent failure, the system is OK at this time.

  4. Check for body electrical DTCs in the DTCs MENU with the HDS.

    Are any DTCs indicated? 

    YES  -Troubleshoot the indicated gauge control module DTC(s). After troubleshooting, clear the DTC.

    NO  -Go to step 5.

  5. Turn the ignition switch to LOCK (0).
  6. Disconnect the BSI control unit 16P connector.
  7. Disconnect gauge control module connector A (12P).
  8. Check for continuity between gauge control module connector A (12P) terminal No. 5 and BSI control unit 16P connector terminal No. 5.
    Fig 1: Checking Continuity Between Gauge Control Module Connector A (12P) And BSI Control Unit 16P Connector
    G08055722Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Replace the BSI control unit (see BSI Radar Unit Removal/Installation  ).

    NO  -Repair an open in the wire between the gauge control module and the BSI control unit.