Troubleshooting - B-CAN System Diagnosis Test Mode B
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. 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 step 3.
NO -Replace the MICU: replace the under-dash fuse/relay box (see REMOVAL AND INSTALLATION ).■
- Do the power, ground, and communication part of the input test for the unit(s) not communicating with the HDS.
COMMUNICATING UNIT REFERENCE CHART
| Unit not communicating |
|---|
| MICU (see MICU INPUT TEST ) |
| Door multiplex control unit (see DOOR MULTIPLEX CONTROL UNIT INPUT TEST ) |
| Gauge control module (see GAUGE CONTROL MODULE INPUT TEST ) |
| Relay control module (see RELAY CONTROL MODULE INPUT TEST ) |
| Combination switch control unit (see COMBINATION SWITCH CONTROL UNIT INPUT TEST ) |
| HVAC control unit (see HVAC CONTROL UNIT INPUTS AND OUTPUTS ) |
| Climate control unit (see CLIMATE CONTROL UNIT INPUTS AND OUTPUTS ) |
| HandsFreeLink control unit (see CONTROL UNIT INPUT TEST/REPLACEMENT ) |