Schematic Reference: Navigation System Schematics

DEFINITION: When using the navigation system, the Global Positioning System (GPS) icon does not appear on the navigation radio.

Did you perform the Diagnostic System Check - Vehicle?

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Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Move the vehicle to an open area outside of the building.
2. Turn ON the ignition. The Navigation screen appears on the navigation radio.
3. The display should show the current position of the vehicle. If the red GPS icon appears on the screen, this indicates that the vehicle does not have GPS reception.

Does the system operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

1. Leave the vehicle outside with the ignition ON or set to adaptive cruise control (ACC) for 30 minutes.
2. Examine the navigation display for the GPS icon, indicating that the vehicle does not have GPS reception.

Does the system have GPS reception?

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Go to Step 9

Go to Step 4

Inspect the front window glass for tinting or any other alterations or obstructions.

Is the front window glass OK?

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Go to Step 6

Go to Step 5

Remove the front window glass tinting or other alterations.

Did you complete the repair?

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Go to Step 9

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1. Disconnect the GPS antenna coax from the Navigation Radio.
2. Test the GPS antenna line for resistance between the center conductor and the outer shield.

Does the resistance measure near the specified value?

300 ohms

Go to Step 8

Go to Step 7

Replace the GPS antenna. Refer to Cellular and Navigation Antenna Assembly Replacement .

Did you complete the replacement?

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Go to Step 9

Go to Step 7

Replace the navigation radio. Refer to Radio Replacement

Did you complete the replacement?

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Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3