Troubleshooting - B-CAN System Diagnosis Test Mode B

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

1. Using the HDS, select the system that has the symptom from BODY ELECTRICAL SYSTEM SELECT menu.
2. Select the DTCs, and then check for loss of communication DTCs.

   Are any loss of communication DTCs indicated? 

   YES  -Go to step 3.

   NO  -Faulty MICU; replace the under-dash fuse/relay box.

   • USA model (see REMOVAL AND INSTALLATION )
   • Canada model (see CANADA MODEL )
3. Do the power, ground, and communication part of the input test for the unit(s) not communicating with the HDS.

   Unit not communicating
   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 )
   Climate control unit (see CLIMATE CONTROL POWER AND GROUND CIRCUIT TROUBLESHOOTING )
   HandsFreeLink control unit (see HFL SYSTEM TROUBLESHOOTING )