2007 Cadillac XLR BaseFACTORY OEM SERVICE PROCEDURE

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 1:  Determines if the malfunction is present.
  2. 2:  Determines if the malfunction was due to no map DVD in the navigation module DVD player.
DTC B2464

Step Action Yes No
1  Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2 
  1. Turn OFF the ignition.
  2. Open, then close the driver door to cancel retained accessory power (RAP).
  3. Turn ON the ignition with the engine OFF.
  4. Use the scan tool in order to clear the DTC.
  5. Remove and reinsert the map DVD.
  6. Retrieve DTCs from the navigation radio.
Does the DTC reset?		 Go to Step 3  Go to Step 6 
3
  1. Turn OFF the ignition.
  2. Open, then close the driver door to cancel RAP.
  3. Wait one minute.
  4. Turn ON the ignition with the engine OFF.
  5. Use the scan tool in order to clear the DTC.
  6. Install a new map DVD in the radio.
  7. Retrieve DTCs from the navigation radio.
Does the DTC reset?		 Go to Step 4  Go to Step 6 
4
  1. Turn OFF the ignition.
  2. Open, then close the driver door to cancel RAP.
  3. Allow the navigation radio to cool for one hour.
  4. Turn ON the ignition with the engine OFF.
  5. Use the scan tool in order to clear the DTC.
  6. Remove, then insert the map DVD.
  7. Retrieve DTCs from the navigation radio.
Does the DTC reset?		 Go to Step 5  Go to Step 6 
5 Replace the navigation radio. Refer to Control Module References in Computer/Integrating Systems.
Did you complete the repair?		 Go to Step 6  -
6
  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
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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