Automotive diagnostic tools

Problem: I was concerned about buying from a company in another country. The shipment was delayed a few days due to the parcel service and caronavirus issues, but it is now on its way. Customer service was very good, they were very responsive via email, communication was great. I will certainly purchase from them again. But, when I connect to obd2, it says “cannot detect CANDI module, please verify module is connected”. If it helps you, the green light on the candi module is flashing (not solid). I am not sure what to do. Can you help? The solution From obd2tool technician  : I think I selected the wrong engine designation (there are 3) for my truck and the tech 2 could not communicate because it was looking for a controller that was not present (which presented the error message “no candi module”). So, I think the  GM Tech 2 Scan Tool was OK. It was my fault in my selections. I got it to work now! Very appreciate the solution Chris provided! Hope it helps yo...

Answer for ” What can I do with a Tech 2 Scan Tool ?”: GM Tech 2 is a diagnostic tool for the most part. It can be used to program out/in certain RPO’s in the BCM and can be used to bleed the ABS brake system without introducing air into the system. The extent to which it can be used to tune a C5 corvette is that if you have a PCM Image that will work for your car you can save the current PCM Image and flash the new one you have onto the PCM. It cannot go in and individually change the tuning tables in the PCM as can say either EFI Live or HP Tuners tuning tools. But then those tools cannot touch the BCM either. If you do or plan to do a lot of diagnostic work on your car it can be a worthwhile tool. Most of the diagnostic charts in the factory service manual assume the availability of a Tech 2. But you have to learn to use the tool like any other computerized diagnostic tool. It has layers and layers of menues to wade through. But in certain diagnostic situations it c...

Success! Steps to program key fob to 2006 Chevrolet HHR with Tech 2 clone: Install the GM Tech 2 Scan Tool Turn ON the ignition with the engine OFF Power On the Scan Tool Hit Enter Main Menu > F0: DIAGNOSTICS Vehicle identification – Model Year > (9) 2009 Vehicle identification – Product Type > Passenger Car Vehicle identification – Product Make > (1) Chevrolet Vehicle identification – Product Line > A Diagnostics > F6: Body and Accessories Vehicle identification – Service Categories > Keyless Entry Body and Accessories > F5: Module Setup Module Setup > F0: Body Control Body Control Module > F0: Program Key Fobs Program Key Fobs > F0: Invalidate all key fobs