1. Dirty or Damaged CD: Check if the CD is dirty or has scratches. Clean the CD with a soft cloth and try playing it again.
2. Incompatible CD Format: Make sure that the CD you are trying to play is compatible with the CD player. The CD player in the 1998 Honda CR-V supports CDs that are in the audio CD (CDA) format. Other formats like MP3, WMA, or DVDs are not supported.
3. Incorrectly Inserted CD: Ensure that the CD is properly inserted into the player. Sometimes, the CD might not be fully inserted or might be upside down, which can cause the player to display the "PEO" error.
4. Foreign Objects: Check the CD player for any foreign objects or debris that might be obstructing the proper functioning of the player.
5. CD Player Malfunction: If the above solutions don't resolve the issue, there might be a problem with the CD player itself. It's recommended to have the CD player inspected by a qualified technician or an authorized Honda service center to diagnose and fix the problem.