With the advances in todays technology it is amazing to see these advancements being used in the automotive repair industry. With vehicles becoming more and more complex with every new model year, it is tough to keep up and decide what equipment to purchase in order to perform any necessary repairs. Well, if you work on Ford Motor Company vehicles, this product is a MUST HAVE!! We have heard of and have seen various OBD II scanners for Palm's, but, this product, the AutoDiag by DiagTek, is THE product for Ford vehicles!! We have alot to cover and there are ALOT of images, so pardon the page load time. Let's get started..
DiagTek, LLC
P.O. Box 8738
Anaheim, CA 92812
Product Review by
Bruce Bonebrake
Managing Editor at BATAUTO
The AutoDiag system contents:
  Don't let the package contents fool you!! This system is EXTREMELY powerful and loaded with information. The package contains the AutoDiag hardware, the AutoDiag  software on CD, and the Palm cable required to connect your Palm to the AutoDiag hardware.
The AutoDiag software is on CD and includes a .pdf (Adobe Acrobat) Owners Manual. The hardware is the AutoDiag adapter and the required Palm cable. In our case, for the Palm m105.
Loading the AutoDiag software is very simple. Install the CD in the CD drive and select the Palm programs to add. Once all of the files are added, simply HotSync the Palm and the AutoDiag system is installed on the Palm and ready to use.
I was VERY impressed with the included User's Manual that is on the AutoDiag CD. Very well written and extremely detailed!
Look at the NOTE on the screen to the left. This is a mistake alot of folks make. That paragraph says it all, the scanner (whatever model or type this still applies) is a tool to "aid" in the diagnosis of certain automotive electronic systems.
By looking over the Table of Contents screen of the AutoDiag manual, you can easily see that anything you need to know about the system is explained.
Our test vehicle is a '96 Ford Windstar 3.8L V-6. The two amber warning indicators, "Check Engine" and the "SRS" (Air Bag) lights are always on. The center red light, Door Ajar is illuminated because the drivers door was open during the tests.
Next, install the AutoDiag hardware to the DLC connector under the drivers side of the dash. This is the 16 pin connector.
Select the AutoDiag system by tapping the Icon on the m105
The AutoDiag startup screen
Next, select the Make, Model..
and the year you are working on.
The available systems for the vehicle will be displayed. Select the system you want to diagnose.
Next, select an action you want to perform.
By looking at the pictures of the screen, you will see that we have six stored DTC's in the Powertrain Control Module (PCM) memory. Whenever you see multiple codes stored, remember that one fault can cause others to set. For example, the second DTC, PO301, Cylinder #1 misfire, more than likely caused DTC's one of six, P1132 and six of six, P1138 both HO2 sensor fault codes to set.. one other thing to note, five of the six codes shown above are ENHANCED DTC's!!! Very nice!! The AutoDiag system will display Generic and Enhanced DTC's!!
With mutiple DTC's (fault codes), I always write down the codes that were stored and then clear the PCM memory. This is illustrated above using the easy to understand AutoDiag system.
The AutoDiag performs the KOEO (Key On Engine Off) and KOER (Key On Engine Run) tests just like the scanners that cost thousands of dollars!! Nice!! I performed the KOER test and then went back and checked to see what stored DTC(s) returned. Just as I suspected, the PO301 returned. There is a definate problem with #1 cylinder. Further testing found the problem, bad news for the owner, the vehicle has a defective cylinder head gasket. Coolant entering into #1 cylinder. Can you imagine the amount of money that could have been spent trying to correct the Check Engine light coming on? And what if the KOER test wasn't performed and as an attempt to correct the first reading of the DTC's the HO2 sensors were replaced? They still may need replacement due to the engine coolant contamination, but after the engine repair has been completed, a tool such as the AutoDiag system, will prove positive if they are faulty. You cannot work on OBD II vehicles without a piece of equipment such as this.
If you remember from above, this vehicle also has the SRS (air bag) light staying on. The SRS light has been on since the owner purchased the van 6 months ago. The AutoDiag system  will perform diagnosis on the Airbag Module (SRS), Anti-Lock Brake Module(ABS), Emissions system, GEM/Central Timer Module, and as we have already tested above, the Powertrain Control Module(PCM). Let's perform a test of the SRS (Air-Bag) system...
Testing the SRS system is basically the same procedure as the PCM system. By following the instructions on the screen, in a matter of seconds, the AutoDiag scanner found that we have a fault code B1867, Battery Supply ECU Circuit Short To Ground. Following the AllData wiring diagram of the SRS system, I found that at one point in time, the SRS fuse from the Underhood Fuse/Relay Panel had been removed. I installed the correct fuse for the circuit and continued the diagnosis using the AutoDiag system...
Next, I cleared the fault codes from the SRS system. Before the fault codes are cleared, the AutoDiag system will prompt you "Are you sure?" in case the button was selected in error. After selecting "Yes", the "Fault codes were sucessfully cleared" message is displayed. Next, I repeated the above process, "Get stored Codes", as you can see, now there are no stored fault codes found in the selected system. The picture below shows that the SRS/Air Bag is now off. Well, one problem easily solved and the customer will make the decision on whether or not to perform the head gasket replacement to correct the PO301 causing the Check Engine light to illuminate. Luckily the engine problem has been found in time. There is no coolant in the engine oil and the coolant loss is minimal at this time. Prolonged driving or if the problem had not been identified, severe engine damage could occur.
One last thing I want to mention, you may be wondering about updates and how current is the AutoDiag system? By looking at the screen to the left, the "Select Year" you can see that 2003 is one of the selections. Since this is the second month of 2003, I would say the AutoDiag system is CURRENT!! The updates are emailed to the AutoDiag customers free of charge at this time. However, no one knows what the future may bring, so there could be a charge for updates in the future. Myself? I would GLADLY pay for the updates to keep the AutoDiag system current!! Considering the revenue this tool can bring to an automotive repair facility, or the amount of money saved by the DIY'er by being able to perform these diagnostic tests at home, a charge for updates would be a small price to pay!!
I always like to rate the product after I perform the review and I have to tell you, this will be easy to do with the AutoDiag system!!
  I found nothing about the AutoDiag system that I didn't like, as a matter of fact, the entire system impressed me. The folks at DiagTek are serious about this product. They take pride in this system which was obvious when they asked me what questions did I have about it since they had not heard from me during my testing phase. I didn't have any questions (grin)...the software install was straight forward, the system worked flawlessly and precise. The AutoDiag .pdf manual is excellent as I mentioned above. There are several Palm systems supported. For a list of supported Palm's, click HERE. AS A MATTER OF FACT.. the AutoDiag system is in COLOR!!!! So if you have or decide to purchase a color display Palm , the AutoDiag system will be displayed in color. For FAQ (Frequently Asked Questions) reguarding the AutoDiag system click HERE. For pricing or to purchase the system, click HERE. Need a Palm for this system? We are a Palm reseller, check it out!!
I want to thank the folks at DiagTek for allowing me to perform this product review. You have done an EXCELLENT job designing and manufacturing this system!!

Bruce Bonebrake
Managing Editor at BATAUTO.com
I want to give VERY special thanks to the folks at :
Thank you for visting our BAT Auto Resource Center!! Your feedback is important to us!! Please send your comments or questions to:
@2003BATAUTO.com
(Note, the Palm Handheld is NOT included. This gives you the option of using your present Palm, or purchasing the Palm model that fits your needs and budget)
Everything we have talked about so far may be familar to you. There is another VERY nice feature found within the AutoDiag system. We will be performing the next tests on a 2001 Ford Ranger.
( The parameters are loaded and we also selected the "Continuous Display" function)
Recently, DiagTek added PID's to the AutoDiag system. Ok, so what are PID's? Glad you asked (grin)!!
PID stands for "Parameter Identication Data". PID's are available for nearly all supported vehicles. For a list, click on the link  to see the list on the AutoDiag website. For more detailed information on PID's click here. If you look at the screen shots above you can see that we selected the GEM/Central Timer Module, then the Parameter List, the Parameter list loaded, and we selected The Door Ajar Indicator Lamp Driver Output. We also selected (checked) the continuous display function.
(on our 2001 Ranger, we are at the "Select a system to diagnose" screen)
(We selected The GEM/Central Timer Module)
(Next we selected the "Show Parameter List" action to perform)
(The parameters are loading for this specific  system and our vehicle. The amount of PID's available will vary from vehicle-to-vehicle and from system-to-system)
(We selected the "Door Ajar Indicator Lamp Output" parameter to retrieve)
With the Door Ajar PID selected, you can see by looking at the screen shots to the left that we can see the door ajar switch in action. You may be asking ok, how would this be useful? Well, if the door ajar light would be illuminated and opening and closing the door did not toggle on the "Door Ajar Indicator Lamp Driver" parameter (ON/OFF), you have quickly isolated the problem with the circuit. Example, if you close the door, the Door Ajar light would stay illuminated and the Door Ajar Indicator Lamp
Driver would display ON, the Door Ajar switch is the most likely cause of the problem.
Here is another GREAT example of how useful using the PID function can be. Just like we talked about with the Door Ajar light, what about the wipers? While we are still in the GEM/Central Timer Module, let's check them out. As I move the wiper switch through the different speeds, the AutoDiag system instantly displayed the operation. The wipers work fine on this truck, but what if they didn't? Would it be because the wiper switch was defective? The wiper motor? I think you can quickly see how valuable the AutoDiag system would be when checking for a problem. This applies to ALL of the modules on the vehicle. The ABS for example, you could easily see if a specific speed sensor is operating correctly! This is so easy to use and the Owners Manual, as I have mentioned, is well written and everything is carefully explained.