Some 2003 Chrysler PT Cruisers (2.4 liter DOHC 16v turbocharged, sales code EDV, with 5- spd manual G288 trans, sales code DDD) are unable to complete the OBD II Catalyst monitor because of a firmware error.
Chrysler is aware of the problem, and a firmware update is required to correct the problem.
If you own an affected vehicle, please contact your Chrysler dealer for more information. Reference technical service bulletin number 18-112-16. Repair reimbursement may also be available. Per waranty D-16-26, the warranty for reprogramming the PCM on affected vehicle has been extended to a lifetime warranty.