Troubleshooting - B-CAN System Diagnosis Test Mode B

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 Honda Crosstour, 2014 Honda Crosstour, 2013 Honda Crosstour, 2012 Honda Crosstour, and 2011 Honda Accord Crosstour. However, it is still accessible from the selected car via links, so may be relevant.

Do this diagnosis if any of the control units are, not communicating (Not Available is displayed in the HDS) as found by the B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Using the HDS, select the system that has the symptom from the BODY ELECTRICAL menu.
Select DTCs, and then check for loss of communication DTCs.
Are any loss of communication DTCs indicated?

YES -Go to next step.

NO -Replace the driver's MICU, USA models (see DRIVER'S UNDER-DASH FUSE/RELAY BOX (MICU) REMOVAL AND INSTALLATION ), Canada models (see CANADA MODELS ).

Do the power, ground, and communication part of the input test for the unit(s) not communicating with the HDS.

DRIVER'S MICU REFERENCE

Unit not communicating
Driver's MICU (see MICU INPUT TEST )
Gauge control module (see GAUGE CONTROL MODULE INPUT TEST )
Immobilizer-keyless control unit (see IMMOBILIZER-KEYLESS CONTROL UNIT INPUT TEST )
Passenger's MICU (see MICU INPUT TEST )
Door multiplex control unit (see POWER WINDOW MASTER SWITCH INPUT TEST )
Climate control unit (see CLIMATE CONTROL POWER AND GROUND CIRCUIT TROUBLESHOOTING )
Audio unit input test (see AUDIO UNIT CONNECTOR FOR INPUTS AND OUTPUTS (WITH NAVIGATION SYSTEM) )
Power seat control unit (see POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT )