Hi team. Just thought I'd share this....you can manually get the fault codes out of the Corolla 01-05 ZZE122R without a scan tool. Although these cars have an OBDII port they are not fully OBDII compliant. This is a link to a web site that I am personally involved in - we write free OBD data for cars. www.obd-obdii.com and click on obd diagnostic data then scroll down to find the Toyota/Corolla section. Cheers