What all can a Tech IA or Tech II do??
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Cadillac Powertrain Control Module (PCM) Tuning Discussion, What all can a Tech IA or Tech II do?? in Cadillac Engine Technical Discussion; Anyone with experience with these tools, what all CAN they do? Just how much is accessible? Are they all upgradable? ...
  1. #1
    N0DIH's Avatar
    N0DIH is offline Cadillac Owners Master
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    What all can a Tech IA or Tech II do??

    Anyone with experience with these tools, what all CAN they do?

    Just how much is accessible? Are they all upgradable? I have seen 10MB and 32MB cards, CAN adapters. And wide prices on them on eBay.

    Just wondering if it is worth it to get one.

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    Logandiagnostic's Avatar
    Logandiagnostic is offline Cadillac Owners Connoisseur
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    Exclamation Re: What all can a Tech IA or Tech II do??

    The Tech 1 and Tech 1a were made by Vetronix. Tech 1a was a updated version. I would not mess with a Tech 1.

    Many cartridges were available. ABS and airbag stuff.

    The best Tech 1a cartridge was the dealership 'mass storage' one. It could be updated with software. The MSC covered all GM systems. Powertrain, abs, airbag etc..

    About 1994. The VIM OBDII interface cable was released.

    GM support for the Tech 1a went away about 1996. Vetronix went on making software cartridges until a few years ago.

    Currently, the Tech 1a is a obsolete scanner. It can have some use if you obtain a 'Global OBDII cartridge'.

    In 1996, GM introduced the Tech 2. Produced by Hewlett Packard. Interesting, it used Vetronix written software.

    The original Tech 2 came with a 10mb picma card. Latter units came with a 32mb card. You want the 32mb card.

    At some point, Vetronix bought out the Hewlett Packard production line. Tech 2 now made by Vetronix.

    With the Tech 2. Gone were the cartridges. The pcima card could be updated electronically.

    You can update a Tech 2 by removing the pcima card, install it into an a different updated Tech 2, and tranfer the update to the pcima card.

    About 2002. The Tech 2 Candi module was released. Allowed Tech 2 CAN bus access to cars like the 2003 Saturn Ion and Cadillac CTS using CAN.

    More..just over a year ago. Bosch bought out Vetronix. The current Tech 2 is a Bosch product. Future Tech 2's may be green corprate color.


    What can a Tech 2 do? Codes for all systems. It is also a bidiectional tool. Examples: It can turn on/off fuel injectors for testing, enable EGR valves, enable trans solenoids, etc. In other words, alot.

    You can also set vehicle sytem configurations. In my case, I can enter the cluster display and change it. Mine currently shows '2001 Cadillac DTS' on start up. I can also turn on/off the right mirror tilt on back up.

    Very, very nice tool to have if you work on GM vehicles.
    Forget about 10mb pcima cards. Go with 32mb.
    Easy software updates.
    Go ahead and get the CANDI module.
    Figure around $3000 with CANDI module.


    That being said. The Tech 2 is a diagnostic tool. What scares us is the air bag black box forensic tool. The Vetronix / Bosch CDR. The Tech 2 cannot access the crash data. It can be seen here:

    http://www.airbagcrash.com



    Logan Diagnostic LLC
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    www.airbagcrash.com
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    Re: What all can a Tech IA or Tech II do??

    Does the Tech I have much value for 95 and older cars/trucks? (OBD1)

    Just wondering if I got one for a good price would it have value, I have 1 OBD1 car...

    Excellent post! Thanks so much!

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    Logandiagnostic's Avatar
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    Re: What all can a Tech IA or Tech II do??

    If you plan to keep your 1995 for a while. A used Tech 1a may be a good investment.

    I would try to buy one with the dealership Mass Storage Cartridge (MSC).

    A Tech 1a can go back to 1981 GM cars. A Tech 2 can go back to 1990. A card is available for the Tech 2 to go back to 1981.

    I hope you are aware, that the Cadillacs do have a built in diagnostic sysytem. So to some extent, you do have access to trouble codes etc.



    Logan Diagnostic LLC
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    N0DIH's Avatar
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    Re: What all can a Tech IA or Tech II do??

    Unfortuneatly the FW's got a pretty crippled one compared to the N* and Cadillac sourced engines... No FDC, limited troubleshooting on the CCM

    I might look for one if one is good price.... But a Tech2 is probably the best investment long term..... I have a 99 Burb I would love to use it on...

    Quote Originally Posted by Logandiagnostic View Post
    If you plan to keep your 1995 for a while. A used Tech 1a may be a good investment.

    I would try to buy one with the dealership Mass Storage Cartridge (MSC).

    A Tech 1a can go back to 1981 GM cars. A Tech 2 can go back to 1990. A card is available for the Tech 2 to go back to 1981.

    I hope you are aware, that the Cadillacs do have a built in diagnostic sysytem. So to some extent, you do have access to trouble codes etc.



    Logan Diagnostic LLC
    www.ledfix.com
    www.airbagcrash.com
    www.logandieselusa.com

  7. #6
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    Re: What all can a Tech IA or Tech II do??

    You could always run an LS1 PCM on your FW. I know how to do this. You would need to scrap the distributor. You may want to think about this before your opti-spark dies again. Then you can work with a real PCM

  8. #7
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    Re: What all can a Tech IA or Tech II do??

    I have been thinking of doing such a thing. I am planning a 0411 PCM swap on my 99 K2500 Burb 454, so it would be ideal to do it on the Cad too. And when I do a LS1 swap (Probably a 5.3L or a 6.0L LQ4 tweaked for really high compression....) I will need it then anyway....

    5.7L L31 program from a 2002 Van? and add 24x crankshaft sensor?

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    nguyennhatquang is offline Cadillac Owners Fanatic
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    Re: What all can a Tech IA or Tech II do??

    can we use the TECH2 to adjust the FAN Setting in the Northstar.
    example i want it run sooner or later ?
    thank you in advance.
    i did the fan setting in benz. it can run sooner or later depend on the computer.

  10. #9
    N0DIH's Avatar
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    Re: What all can a Tech IA or Tech II do??

    I don't think so, but I will inquire from my guy with a Tech2....

    Quote Originally Posted by nguyennhatquang View Post
    can we use the TECH2 to adjust the FAN Setting in the Northstar.
    example i want it run sooner or later ?
    thank you in advance.
    i did the fan setting in benz. it can run sooner or later depend on the computer.

  11. #10
    cnyncrvr is offline Cadillac Owners Member
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    Re: What all can a Tech IA or Tech II do??

    Not to hijack this thread but I have a question hopefully someone here can answer.

    I currently have a tech 2 and I love it probably been the most utilized tool in my box.

    However it seems that the tech 2 is getting antiquated in favor of the GM MDI and Tech2Win. And this is where my question comes in.

    I have yet to find any information on using the MDI with pre 1996 vehicles. or OBD1 systems. I see adapters from 16pin OBD2 to 12pin OBD1 GM on ebay but no one seems to be able to give me a diffinitive answer as to using the MDI with OBD1 vehicles.

    Currently I mainly work on 2002 and earlier GM vehicles and the tech 2 has been invaluble.

    If I were to sell my tech2 and candi module and replace it with the MDI and current software would I loose the ability to work with pre 96 vehicles?

    Or would I be better served keeping the tech2 for the pre 96 vehicles and then investing in the MDI and software subscription for working on the vehicles that the tech2 does not support?

  12. #11
    Logandiagnostic's Avatar
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    Re: What all can a Tech IA or Tech II do??

    I don't have a MDI so really can't say. I do have the link saved in my favorites about the MDI.


    http://www.ebay.com/gds/Has-MDI-has-...3082524/g.html

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