Tech2 program a module: pass-through or go-between method?

For users with GM Tech2 scan tools:

If you’re trying to program a module, there are two methods. One is pass-through and the other is using the Tech 2 as a go-between.
In detail… look here:
The pass-through is to use with a laptop in the vehicle and it just uses the Tech 2 as the connection between. This is the fastest and easiest way to do it.
That is, the data are directly downloaded from the PC to the ECU in the vehicle.
Although the tech 2 programmer is still necessary in the mode, the data entry and the download control is done directly at the pc. Altogether, the method is faster, and it is recommended when a pc with TIS2000 software is within 3m of a vehicle.

    1.Connect Tech 2 to the vehicle.
    2.Connect Tech 2 to the PC switch on Tech 2.
    3.Start TIS 2000 on the PC.
    4.Select the icon ‘Service Programming System’ (Fig. 1) on the TIS2000 start page.
    5.Start TIS 2000 on the PC.
    6.On the screen ‘Select Diagnostic Tool and Programming Process’ (See picture below) make a selection for


Pass-Thru mode
The reprogramming of an ECU that was not exchanged or the replacement/programming of a new ECU the ECU location.
Then clock ‘Next’ button.


The go-between method is for when you can’t bring the computer into the vehicle and uses the gm GM Tech2 Scanner as a go-between. You connect the Automotive Diagnostic Scanner Tech 2 to the vehicle and download the module information that you want to program. Then you disconnect, run to the computer running Tis2000, connect it to the computer and download the programming information for that module, disconnect again and run back to the vehicle, connect it and it automatically programs the module. It can take a long time depending on the module (PCM is the longest).

Have fun in GM Tech II programming!
Good luck!
http://www.cnautotool.com/goods-1568-GM+Tech2+GM+Scanner+-CANdi++TIS.html

2015 Mitchell OnDemand 5 Mitchell Auto Repair Database

Mitchell Latest Version: 2015
Language: English
Support System: Windows XP 32 bit, Windows7 32 bit & 64 bit

Mitchell OnDemand 5 quarter 2015 description of the catalogue:Powerful yet simple to navigate, Mitchell 1's OnDemand Repair has been completely redesigned to deliver sophisticated search capability with increased speed. You'll save valuable time using brand new shortcuts to TSBs, wiring diagrams, and more!

Mitchell On Demand 5 1983-current year Domestic & Import Model Coverage
Clear, Concise Illustrations & Diagrams
Time-saving TSBs, Recalls, & Technical Tips
Detailed, Accurate Repair Articles
Model-Specific Maintenance Schedules
Electronic Component Locator for all Models


Mitchell AUTO repair database, the accuracy of consistent with the original maintenance manual (some are more accurate than the original manual, because many errors of the original maintenance manual are corrected), and to maintain the unique style and the Mitchell Database Query System.

Mitchell database has the following characteristics:
1. Rich in Content and Accuracy
Database contains from 1983 to date, the United States, Europe, Asia and around the world 51 automobile manufacturers of nearly 5,000 models of the maintenance data. You just select the vehicle's production era, manufacturers, maintenance of vehicles to enter the appropriate directory, the directory in a different maintenance model according to the engine, transmission type, etc. have a more detailed classification of the different, so you find information more quickly , more accurately.
If you can not be sure about the age of car, model, the database also provides a 17 yards (VIN - Vehicle Identification Number) decoding of information. You just go to the car in 17 yards, you can use it to accurately get the detailed parameters of the car.
Mitchell database model precise positioning in the "model year", which greatly ensure the accuracy of the information, which is a common book on the market data can not be compared, which is the U.S. electronic maintenance data and complete monopoly of the most important reasons.

2. A Complete and Unified Circuit
In the database each model has a 40-80 system, circuit, and the right circuit diagram of a pin for each computer, every line of the definition and color have been described. Because all the vehicle manufacturers provide information on different formats, taking into account the customer's convenience, Mitchell did not like the other companies' equipment, which just simply scan down the graphics,  Mitchell re-use CAD drawing, so that all circuit clear and precise style, unified, easy to inspect. Mitchell circuit up to 10 a few of the original system, circuit analysis, re-drawn into a 2-3 circuit, reading more convenient. In other words, as long as you can read a model of the circuit, you can use a database of all models of the circuit for analysing , diagnosing.

3. Detailed and Accurate Location Map of Electrical Components
for Today's vehicles are very complex, more and more electronic components, larger and larger structural differences in different cars. Maintenance personnel are often unable to determine the location of an electronic component error. The database provides the location of electrical components for all models, in addition to text descriptions, but also accompanied by diagrams, clear, easy to use.

4. Parts Decomposition Diagram and Parameters
For each type of car, Mitchell database, not only the demolition of a variety of assembly installation steps in detail, but also a clear and accurate parts exploded view of the parameters of reference, making your vehicle more convenient and faster.

5. Technical Service Bulletin is The Essence of Mitchell Database
Car manufacturers produced models every year, a large number of technical service bulletin issued, covering a variety of the latest technologies in the vehicle information, such as maintenance tips, safety recall information, etc, to help the workshops. In the Mitchell database, you can not only find the assembled, respective, with the assembly-related technical service bulletin, but also can simultaneously search all of the technical service bulletin, clarity, very convenient，very easy to use.

Mitchell OnDemand 5 Packing including:
1pc x 2015 Mitchell OnDemand 5 mobile HDD (320GB, software 165GB)

Autel Maxisys Elite Diagnosis

Diagnosis

There are two options available when accessing the Autel MaxiSYS Elite Scan Tool section:
1.  Auto Scan – starts auto scanning for all the available systems on the vehicle
2.  Control Units – displays a selection menu of all available control units of the test vehicle

Auto Scan

The Autel Maxisys function of the Autel Scanner performs a comprehensive scanning over all the systems on the vehicle’s ECU in order to locate fault systems and retrieve DTCs. The sample operation interface of Auto Scan displays as below:



1.  Navigation Bar
2.  Main Section
3.  Functional Buttons

Navigation Bar

1.  List Tab – displays the scanned data in list format
2.  Tree Tab – display the scanned data in system distribution diagram format
3.  Progress Bar – indicates the test progress

Main Section

A.  List Tab
Column 1 – displays the system numbers
Column 2 – displays the scanned systems
Column 3 – displays the diagnostic marks indicating different conditions of the test result: Indicates that the scanned system may not support the code reading function, or there is a communication error between the tester and the control system.
Indicates that the vehicle control system has been detected, but the tester cannot accurately locate it.
Fault : Indicates there is/are detected fault code(s) present;
indicates the number of the detected faults.
Pass  No Fault: Indicates the system has passed the scanning
process and no fault has been detected.

B.  Tree Tab
The tree tab screen displays a system distribution diagram of the vehicle control modules. The scanned system which has passed scanning with no fault is shown in blue font; whereas the scanned system that has been detected with fault present is shown in red font.  Tab the   button to the right of the system item, on which you want to perform further diagnosis and other test activities. A Function Menu screen (Figure 4-8) shall then display.

Functional Buttons
The table below provides a brief description of the Functional Buttons’ operations in Auto Scan:



Control Units
This option allows you to manually locate a required control system for testing through a series of choices. You simply follow the menu driven procedure, and make proper selection each time; the program will guide you to the diagnostic function menu after a few choices you’ve made.