NAVIGATION SYSTEM > Reverse Signal Circuit

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DESCRIPTION

The multi-display receives the reverse signal from the cowl side junction block ECU LH and sends the signal to the navigation ECU. The multi-display receives information about the GPS's antenna, and then adjusts the vehicle position.

WIRING DIAGRAM


E107713E02


INSPECTION PROCEDURE

1.CHECK COWL SIDE JUNCTION BLOCK ECU LH
E106805E04

  1. Measure the voltage of the junction block.

    Standard voltage:
    Tester Connection
    		Shift Lever Position
    		Specified Condition
    W2-2 (BACK) - Body ground
    		R
    		10 to 14 V
    W2-2 (BACK) - Body ground
    		Not R
    		Below 1 V



NG
REPLACE COWL SIDE JUNCTION BLOCK ECU LH
OK


2.CHECK WIRE HARNESS (MULTI-DISPLAY - COWL SIDE JUNCTION BLOCK ECU LH)
E108187E02

  1. Disconnect the L46 multi-display connector.

  1. Disconnect the W2 ECU connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L46-13 (REV) - W2-2 (BACK)
    		Always
    		Below 1 Ω
    L46-13 (REV) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


3.CHECK MULTI-DISPLAY


    E108360E03

  1. Measure the voltage of the connector.

    Standard voltage:
    Tester Connection
    		Shift Lever Position
    		Specified Condition
    h1-12 (REV) - Body ground
    		R
    		10 to 14 V
    h1-12 (REV) - Body ground
    		Not R
    		Below 1 V



NG
REPLACE MULTI-DISPLAY
OK

REPLACE NAVIGATION ECU