FOREWORD [ENTIRE AUDIO SYSTEM]

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

Troubleshooting Procedure

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*1 :CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop))] / CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [MULTIPLEX COMMUNICATION SYSTEM (L.H.D. (MZR-CD 2.2, MZR 2.0 DISI i-stop))] / CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 1.5))] / CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR-CD 2.2, MZR 2.0 DISI i-stop))] / CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (EXCEPT MZR-CD 2.2, MZR 2.0 DISI i-stop, MZR 1.5))]

*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 malfunction or occurrence of any DTCs.

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

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DTC Inspection Note

• There are two methods of DTC inspection for the audio system: The on-board diagnostic test mode by operating the audio unit to activate the on-board diagnostic function, and using the M-MDS. (See DTC INSPECTION [AUDIO].)

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 audio system even though a DTC is not displayed in the on-board diagnostic test mode, perform the DTC inspection using the M-MDS. (See DTC TABLE [AUDIO].)