Scan Tools are available to everyone (Score 2, Informative)

If you are running a repair shop adn do not invest in the scan tools for the most common vehicles you service, then you are in teh wrong business. Chrysler, GM and Ford all have their scan tools available for sale. As a Service Technician, you also should be able to diagnose many problems without a scan tool. Most ASE certified technicians are pretty proficient with diagnosing problems before they get a scan tool out. Furthermore, a scan tool trouble code may only be present when something affects the emission controls on a vehicle, not on all system failures (Such as the cited automatic climate controls.) Additionally, sites like Alldata (http://www.alldatapro.com/includes/main.jsp) have full service manuals available online to troubleshoot vehicles up to the current year. Tehre is no secret to this stuff, it's just getting educated about where to find your information. As as side note, the newer Chrysler vehicles equipped with the digital odometer will display OBDII Trouble codes without a scan tool.