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Thread: Tech 2

  1. #1
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    Cadillac XLR

    2008 XLR

    GM News Tech 2

    Before I actually need a Tech 2 I plan to purchase one, however there seems to be quite a number on the open market. Could someone give me direction for a past experience, good or bad? Is there a correct part number or is it an order by specific car and what extras are needed for complete functionality? Thanks

  2. #2
    Tech 2 rexster314's Avatar
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    To connect a TECH II to your car you'll need the actual TECH II and a CANDI module along with the corresponding OBDII connector. The TECH II will have a 32mb PCM/CIA card with most of GM cars on it. In my case it contains vehicles up to 2013. When connected properly, upon bootup it will run a self diagnostic check on itself, then will give options to select the proper vehicle. It's a very powerful tool and CAN disable your vehicle if not used correctly.

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    Thanks Rexter! There are so may on the market I don't want to make a $300 mistake and buy a total piece of junk. I'm looking forward to the spring and some reasonable weather to bring my XLR out into the sun light...

  4. #4
    Tech 2 rexster314's Avatar
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    If you're looking at a Chinese knock-off, be sure and do your due diligence and make sure everything you need comes with it. It took me about a month to get the 32mb card that should have come with mine but didn't. Fortunately I was lucky to get a good customer service person that had a good use of the English language

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    Thanks Rexster, I do understand that the Tech 2 is a very dynamic tool for diagnostic, but can it also change the parameters within the individual computers? For example eliminate day time running lights, speed limiter and other more dynamic setting?

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    Tech 2 rexster314's Avatar
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    I've not had any luck finding any settings to disable the DRLs. Haven't drilled down far enough to find anything about your other questions

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    Thanks for your reply Rexster. My thoughts are that these parameters are not reconfigurable. But I do plan to give it a try!

  8. #8
    Tech 2 rexster314's Avatar
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    I'm certain the speed limiter is hardwired.

    This is an interesting read, GM took a V over to Germany and had the speed limiter disabled

    Bahnstorming-in a Cadillac - Features - Motor Trend

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    Default drl

    Used to be you could turn off the drl with one click up on the ebrake on most cars. I have not tried it . I wired a switch on mine to turn them off before I installed the leds. I have read some say its the law that they are on during the day but 1/2 the new jap imports I see during the day don't have them on.

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