1. Soft Reset:
a. Turn off the ignition and allow the vehicle to sit for a few minutes.
b. Turn the ignition back on and check if the code has cleared.
2. Check CD:
a. Eject the CD from the changer.
b. Inspect the CD for any scratches, smudges, or dirt.
c. Gently wipe the CD with a soft, lint-free cloth to remove any debris.
3. Clean CD Player:
a. Use a can of compressed air to blow out any dust or debris that may have accumulated in the CD player.
b. Alternatively, you can use a cotton swab lightly dampened with isopropyl alcohol to clean the inside of the player.
4. Check Wiring:
a. If you have access to the CD changer's wiring harness, inspect the connections for any loose or damaged wires.
b. Ensure all connections are secure and properly plugged in.
5. Check for Obstructions:
a. Look for any foreign objects that might be blocking the CD player's loading mechanism.
b. Carefully remove any obstructions if found.
6. Test CDs:
a. Try inserting different CDs to see if the problem is specific to a certain disc.
b. Use original or high-quality CDs to rule out any compatibility issues.
7. Reset the Radio:
a. Disconnect the vehicle's battery for a few minutes.
b. Reconnect the battery and turn on the radio to see if the E22 code has been cleared.
8. Consult a Professional:
a. If the issue persists or you're uncomfortable performing these steps, consider consulting a car audio technician or your local Pontiac dealership.
Remember that if the issue is with the internal mechanism of the CD changer, it may be beyond your ability to fix without specialized knowledge and tools. In that case, replacing the CD changer or seeking professional help may be necessary.