NAVIGATION SYSTEM > RDS-TMC Signal Circuit between Radio Receiver and Navigation ECU

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DESCRIPTION

Traffic information received by the radio receiver is transmitted to the navigation ECU via this circuit.
If an open or short occurs in this circuit, RDS-TMC information will not be updated or the RDS-TMC will not operate normally.

WIRING DIAGRAM


E110940E01


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - RADIO RECEIVER)


    E110941E01

  1. Disconnect the navigation ECU connector N4 and radio receiver connector R4.

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

    Resistance:
    Tester connection
    		Condition
    		Specified condition
    CMP+ - CMP+
    		Always
    		Below 1 Ω
    CMP- - CMP-
    		Always
    		Below 1 Ω
    CMP+ - Body ground
    		Always
    		10 kΩ or higher
    CMP- - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

RETURN TO THE ORIGINAL INSPECTION FLOW BECAUSE THE CHECK RESULT IS NORMAL