The Communication Line Check

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.

While in the self-diagnostic mode, the Communication Line Check starts after the LCD/MID Segments Check

Fig 1: Screen Display - Communication Line

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If the communication line is OK, the word "OK" will be indicated on the multi-information display (MID) If there is a communication line error, the word "ERROR" will be indicated on the MID

Indication pattern

There is a malfunction in the communication line between the F-CAN and gauge control module The B-CAN is OK at this time Check for DTCs in the PCM and troubleshoot any DTCs found

Fig 2: Screen Display - Communication Check

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There is a malfunction in the communication line between the B-CAN and gauge control module The F-CAN line is OK at this time

Fig 3: Screen Display - Communication Check

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There is a malfunction in the communication line between the gauge control module and F-CAN and B-CAN Check for DTCs in the PCM and troubleshoot any DTCs found

Fig 4: Screen Display - Communication Check

Courtesy of AMERICAN HONDA MOTOR CO., INC.