Microphone Circuit Between Multi-Display and Navigation ECU

NAVIGATION: NAVIGATION SYSTEM: Microphone Circuit between Multi-display and Navigation ECU

Microphone Circuit between Multi-display and Navigation ECU

DESCRIPTION

This circuit sends a microphone signal from the multi-display to the navigation ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (INSTRUMENT CLUSTER FINISH PANEL CENTER - NAVIGATION ECU)




(a) Disconnect the M6 panel connector.
(b) Disconnect the N7 ECU connector.
(c) Measure the resistance of the wire harness connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
2. INSPECT INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER




(a) Remove the instrument cluster finish panel center.
(b) Measure the resistance of the panel.
Standard resistance:






NG -- REPAIR OR REPLACE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE