Troubleshooting - B-CAN System Diagnosis Test Mode B
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 driver's MICU
- Do the power, ground, and communication part of the input test for the unit(s) not communicating with the HDS
UNIT COMMUNICATING 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 COMPONENT LOCATION INDEX ) |
| 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 ) |
| 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 (WITH ACURALINK) ) |
| HandsFreeLink control unit (see SYSTEM DESCRIPTION ) |