Vehicle Speed Signal Circuit Between Radio Receiver and Extension Module

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

DESCRIPTION

The extension module receives a vehicle speed signal from the radio and display receiver assembly and information from the navigation antenna, and then adjusts vehicle position.

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