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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2264 (Audio, Visual, Navigation System (BOSE Audio With Navigation)) >> DTC/Circuit Diagnosis >> DTC U1244: GPS Antenna >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITH NAVIGATION SYSTEM ".

  1. GPS ANTENNA CHECK

    Inspect GPS antenna and antenna feeder for damage or poor connection.

    Is the GPS antenna and feeder clean and undamaged? 

    YES: GO TO 2

    NO: Repair or replace malfunctioning parts.

  2. CHECK AV CONTROL UNIT VOLTAGE
    1. Turn ignition switch ON.
    2. Check voltage between AV control unit connector M72 terminal 109 and ground.

    109 - Ground: Approx. 5V 

    Fig 1: Checking Voltage Between AV Control Unit Connector M72 Terminal 109 And Ground
    G08169837Courtesy of NISSAN NORTH AMERICA, INC.

    Is the voltage reading as specified? 

    YES: Replace GPS antenna. Refer to "REMOVAL AND INSTALLATION ".

    NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".