GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 Seville - RHD 🢒 DTC 🢒 DTC B2463

Circuit Description

The circuitry is internal to the navigation module (NAV).

Conditions for Running the DTC

The navigation module (NAV) runs the DTC when a map CD is inserted into the NAV or when the NAV detects a transition from OFF-ASLEEP to ACC, ON or RAP.

DTC B2463 does not set if DTC B1328 or B1327 is current.

Conditions for Setting the DTC

The navigation module (NAV) functions are activated with no navigation CD in the navigation module (NAV) CD slot.

DTC B2463 does not set if DTC B1328 or B1327 is current.

Action Taken When the DTC Sets
    • No map appears on the navigation display head (NDH) when the MAP/REPEAT button located beside the display is pressed.
    • The NO MAP CD INSERTED message appears on the navigation display head (NDH) screen.
    • The navigation buttons do not function.
    • This failure has no effect outside the system navigation functions.

Conditions for Clearing the DTC

A current DTC clears when the navigation module (NAV) detects a navigation CD.

Diagnostic Aids

Important: If DTC B2465 is also set, service B2465 before servicing B2463.

Make sure the CD installed is a navigation system map CD defined for this system. Also be sure the label is on the top side of the installed CD.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. Determines if the malfunction is present.

    2.

  2. Determines if the malfunction was due to no map CD in the navigation module CD player.

Step

Action

Yes

No

1

Did you perform Diagnostic System Check - Navigation System ?

Go to Step 2

Go to Diagnostic System Check - Navigation System

2

Insert map CD into CD player behind the sliding cover on the navigation module (NAV). Make sure the CD is positioned correctly.

Did you complete the installation of the CD?

Go to Step 3

--

3
  1. Use the scan tool in order to clear the DTC.
  2. Disconnect the scan tool.
  3. Turn OFF the ignition.
  4. Open then close the driver door to disable the RAP function.
  5. Do not activate any vehicle functions for one minute.
  6. Turn ON the ignition with the engine off.
  7. Remove and reinsert the map CD.
  8. Install a scan tool.
  9. Check for DTC B2463.

Does the DTC reset?

Go to Step 4

Go to Step 5

4

Replace the navigation module (NAV). Refer to Navigation Data Processor Replacement .

Did you complete the repair?

Go to Step 5

--

5
  1. Use the scan tool in order to clear the DTC.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK