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Navigation System Malfunction

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    • Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit Description

The Navigation/Info display module performs many functions, the main purpose is GPS navigation. Some of the other functions are playing MP3 music files, movies, and DMB broadcast. For a complete understanding of all the features, refer to the User manual.

The Navigation/Info display module can be controlled via touch screen or hard keys. Some of the functions can also be controlled through the Radio. Refer to the User manual.

The Navigation/Info display module also displays the HVAC settings. The HAVC is not able to be controlled through the display module.

Reference Information

Schematic Reference

Radio/Navigation System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Navigation System Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Circuit/System Testing

All Navigation/Info Display Module Functions Inoperative

  1. Ignition OFF, disconnect the wiring harness plug at the Navigation/Info display module.
  2. Test for less than 10 Ω between the ground circuit terminal 2 and ground.
    3. ⇒If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
    4. ⇒If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, replace the Navigation/Info display module.

No Navigation or Mp3 Audio

Note: Only perform this diagnostic if normal radio functions are working properly. If audio cannot be heard from radio or CD diagnose the radio first.

Verify the DIN harness (round connector) is properly connected at both the radio and Navigation/Info display module before replacing parts.

Replace DIN Cable. Verify that audio can be heard.

⇒If audio is still not heard, replace the Navigation/Info display module.

No GPS Signal

    Note: The global positioning system (GPS) requires a clear line of sight to the sky to operate properly. In most cases the GPS will not have reception near tall buildings or inside structures.

  1. Ignition OFF, disconnect the GPS aerial coax cable from the Navigation/Info display module.
  2. Ignition ON, test for 4.5-5.5 V between the coax cable centre conductor terminal at the Navigation/Info display module and ground.
    3. ⇒If not within the specified range, Navigation/Info display module.
  3. If all circuits test normal, replace the GPS aerial.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Electronic Navigation Aerial Replacement
    • Control Module References for Navigation/Info display module replacement, programming and setup
   


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