B2462

DTC B2462

Circuit Description

The Global Positioning System (GPS) antenna is connected to the navigation radio by a coaxial cable.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B2462 Global Positioning System (GPS) Signal Error

Conditions for Running the DTC

The radio must detect one of the following power modes:

* ACC
* ON
* RAP
* RAP UNLK

DTC B2462 does not set if DTC B1328 or B1327 is current.

Conditions for Setting the DTC

* The navigation radio test the GPS antenna every 0.3 second.
* The radio determines there is an open in the GPS antenna.
* DTC B2462 does not set if DTC B1328 or B1327 is current.

Action Taken When the DTC Sets

* Unable to get GPS location updated, the radio uses the last reported position and the vehicle speed signal to calculate the vehicle position.
* Route guidance may be inaccurate.
* This failure has no effect outside the Navigation System.

Conditions for Clearing the DTC

* A current DTC clears when the radio does not detect the failure for more than 10 seconds.
* A history DTC clears after 50 ignition cycles with no repeat of the failure.

Diagnostic Aids

An intermittent condition may be caused by the following:

* Mis-routed harness
* Rubbed through wire insulation
* Broken wire inside the insulation

Test Description

Step 1 - Step 7:

The numbers below refer to the step numbers on the diagnostic table.
1. Determines if the malfunction is present.
3. Determines if the malfunction is due to an internal fault in the navigation radio or a GPS antenna failure.