Navigation Voice Circuit Between Radio Receiver and Extension Module

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Navigation Voice Circuit between Radio Receiver and Extension Module; 2013 MY Corolla [07/2012 -]
- Navigation Voice Circuit between Radio Receiver and Extension Module

DESCRIPTION

This circuit is used when the voice guidance in the navigation system is on or the voice switch of the steering pad switch is pushed.

Using this circuit, the extension module sends signals to the radio and display receiver assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - EXTENSION MODULE)

(a) Disconnect the radio and display receiver assembly connector.

(b) Disconnect the extension module connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table