Troubleshooting - B-CAN System Diagnosis Test Mode B
WARNING: This page is about a different variant/trim than selected.
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 SYSTEM SELECT menu.
- Select DTCs, and then check for loss of communication DTCs.
Are any loss of communication DTCs indicated?
YES -Go to step 3.
NO -Faulty driver's MICU; replace the under-dash fuse/relay box, 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.
INPUT TEST REFERENCE CHART
| 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 (see AUDIO UNIT CONNECTOR FOR INPUTS AND OUTPUTS (WITH ELS AUDIO) ) |
| Audio-navigation unit (see AUDIO-NAVIGATION SWITCH PANEL FOR INPUTS AND OUTPUTS (WITH ELS AUDIO) ) |
| Navigation display unit (see NAVIGATION DISPLAY UNIT CONNECTOR FOR INPUTS AND OUTPUTS ) |
| Power seat control unit (see POWER SEAT CONTROL UNIT INPUT TEST/REPLACEMENT ) |
| AcuraLink control unit (see ACURALINK CONTROL UNIT (XM RECEIVER) CONNECTOR FOR INPUTS AND OUTPUTS ) |
| HandsFreeLink control unit (see SYSTEM DESCRIPTION ) |