I went on to the
www.actron.com web site and to the manual section, they are all on line... they sell a multimeter that you can use to check just about any sensor on your car.. i downloaded it and found that the info will let me use my old radio shack meter(25 yrs. old) to do the same thing.. pretty good info if you need some trouble shooting tips on finding problems you might be having on your car...
hope this helps. you have to go to the DIY sunpro section to get the manual for the CP75678 meter......
