On-Board Diagnostics Foreword

FOREWORD [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)]

- If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.

Troubleshooting Procedure





*1
Controller Area Network (CAN) Malfunction Diagnosis Flow [Multiplex Communication System]
*2
DTC Inspection Note

Action for non-repeatable malfunction

- If the malfunction does not recur, verify the malfunction cause by performing the following actions:

- Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data at that time, and detect the malfunction cause.
- Shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for any changes in CAN system voltage or occurrence of any DTCs.





- Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection.






DTC Inspection Note

- There are two methods of DTC inspection for the Bluetooth system: The on-board diagnostic test mode by operating the audio unit to activate the on-board diagnostic function, and using the M-MDS. DTC Inspection - Bluetooth System (Hands-Free Telephone (HF/TEL) System)

CAUTION:
- Because there are DTCs which are not available in the on-board diagnostic test mode, the displayed DTC may differ depending on whether the on-board diagnostic test mode or the M-MDS is used. If there is a malfunction in the Bluetooth system even though a DTC is not displayed in the on-board diagnostic test mode, perform the DTC inspection using the M-MDS. Audio - DTC Table Bluetooth System (Hands-Free Telephone (HF/TEL) System) - DTC Table