Tonyrodz
Resident Resident
It was only on for literally a brief second--then that was it. I disconnected and reconnected a few times and it never came back on.
Tech 2 Purchase
- Thread starter Costal_Cat
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
You went past the POST screen? And had it all connected to the OBD port?
Tonyrodz
Resident Resident
Pretty sure, it's been awhile and I was trying it out on my van. I did get it to turn my abs pump on--so that was cool.
Mine doesn't light up if it's not connected to the truck, even if the Tech 2 is AC powered. You don't really need it for your van, either, do you?
Tonyrodz
Resident Resident
@swathdiver said I don't really need it for what I want to do. So I guess not, would still be nice for it to work tho.
I had the Tech2 powered through the cigarette lighter and the Candi module was plugged into the obd.
It doesn't need to be connected any external power unless you are doing something that requires you to start the vehicle while in a diagnostic, in which case being connected to the cigarette port will cause it to still reboot anyway. if you need aux power it should be with a 12v dc adapter plugged into ac power.
swathdiver
Full Access Member
Yeah, don't do that, just use the OBDII port and the light should come on, I think, even for your GMT800. Know anyone with a GMT900 you can try it out on?
There are self-tests for the Tech-2 and CanDi module that you can run on the kitchen table, do those to make sure everything is working as it should and then you can put the CanDi away until you need it.
George B
¯\_(ツ)_/¯
Clone ordered. Will see how long it takes to arrive.
Tonyrodz
Resident Resident
I hate when I was doing tests and the Tech2 would reboot. Good tip on the ac pwr.
I had the candi module plugged into the obd and the light didn't come on.
What kind of self tests can I do? I didn't know about that.
Tonyrodz
Resident Resident
The Candi module isn't--I think.
George B
¯\_(ツ)_/¯
I hope you figure it out and I hope mine works as expected. I need the candi for my 13 burb
Tonyrodz
Resident Resident
Too bad we're not local to each other.
swathdiver
Full Access Member
http://auto-diagnostics.info/pdf/tech2_users_guide.pdf
If memory serves, when you put external power to the VCI module, it cut off the power to the CanDi. If you were going to power the Tech-2 from an external source while connected to a vehicle, you would use the power port in the CanDi cable, not at the base of the unit (VCI). This is where I plug mine in while connected to the computer when programming modules and at the table while doing diagnostics unless otherwise directed by the instructions.
there is no power port in the candi cable unless you have something different
Yeah my candi module doesn’t have a power port either. I can have the candi plugged in with the ac adapter connected to the main Tech2.
kbuskill
***CAUTION*** I do my own stunts!
I got my tracking number for DHL tonight.
No estimated time of arrival yet.
I will keep you posted.
kbuskill
***CAUTION*** I do my own stunts!
I believe he is talking about the power port on the DLC cable.
I don't have my hands on one yet but from the reading I have done there should be a way to plug in external power at the DLC adapter.
It also says this in the manual...
So for vehicle communication you should actually have it plugged into the DLC cable and NOT the Tech 2 power port, to ensure a proper ground.
Last edited:
Well I’ll be damned. I didn’t even know I could plug it in there which is cool since the dc input on my Tech2 is kind of wonky. Guess I didn’t read that part of the directions.
kbuskill
***CAUTION*** I do my own stunts!
I have been trying to read up on it before it arrives so I am not going into it blind... lol
Similar threads
