Initial Inspection and Diagnostic Overview

FOREWORD [CAR-NAVIGATION SYSTEM (INTEGRATED MULTI INFORMATION DISPLAY)]

NOTE:
- The car navigation unit is integrated with the multi information display. When verifying the DTCs and wiring harness, select the multi information display.

- 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]

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.





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