Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode B - Control Unit Not Communicating (Blind Spot Information (BSI) System) (2018 2019 2020 2021 2022 2023 2024)
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 .
1. Using the HDS, select the system that has the symptom from the BODY ELECTRICAL SYSTEM SELECT menu.
2. Select DTCs, and then check for loss of communication DTCs.
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If any loss of communication DTCs are indicated, go to step 3.
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If any loss of communication DTCs are not indicated, replace the body control module .
3. Do the power, ground, and communication part of the input test for the unit (s) not communicating with the HDS.
| Unit not communicating |
|---|
| Body control module |
| Gauge control module |
| Climate control unit |
| Power window master switch |
| Automatic lighting control unit-sensor |
| Automatic lighting/rain sensor |
| Power seat control unit |
| Left power sliding door control unit |
| Right power sliding door control unit |
| Power tailgate control unit |
| Power distribution module |
| Parking and back-up sensor control unit |
| Seat heater control unit |
| Ventilated seat control unit |
| Windshield wiper control unit/motor |
| Wireless charger |
| Audio unit |
| Telematics control unit |
| Left side BSI radar unit |
| Right side BSI radar unit |
| Multipurpose camera unit |