regarding fortin bypasses

Hey guys, Recently did a 2007 G5 remote start and saw I needed two bypasses to make the car work. I had to use a Fortin bypass (the CAN-SL2 model I believe)and a DEI 556UW. When I bought the CAN-SL2 it said it immobilized the factory security system for remote start, yet when I received it I saw the instruction manual said I would need the TB-GM2 to replicate the key code (a substitute for the key in a box). I rarely do newer GMs, but how can I check to see if a second bypass is needed? Luckily the customer was okay with providing a spare key to use in the 556UW. With remote start season coming upon us I want to make sure I have my facts in order for the customers with any newer GM vehicles. I am used to checking Fortin's website to see what product acts as the appropriate immobilizer, when I find one I purchase it and install it - everyone is happy. So, is there a trick to knowing when an additional bypass is needed (ex - 556UW) on top of the Fortin bypasses for GMs? Appreciate it guys.

There are two different diagrams for the install in the can sl 2 guide for the newer chevys. The one you used requires the use of a tb or a key. The second one doesn't. I'm pretty sure it explains this in the manual. When using the diagram without a key there is more currant draw when the car is off. If your customer drives the car regularly and doesn't let it sit for long periods of time there is no issues with installing it that way.

Ahhh ok. So the CAN-SL2 can be an all in one unit if wired a certain way? I will have to double check the manual because I did not see any mention of it. Appreciate the information.

The TB series module is only required if current draw is an issue. This support article should help explain this: https://ifar.ca/en/support/products/62-battery_drain_on_2008_and_newer_gm_vehicles_with_can-sl2_can-sl-pl.html

Use the CANSL2 for immobilizer bypass as well. The current draw is so minimal that you can have the vehicle sit for 3-4 days without a problem of not starting. We use this method all the time for customers. The only time we use another module is if the customers require that they want the other module because they have their vehicles sit for over a week at a time all the time ( long haul truck drivers that leave vehicles at their place of employment ).Jeff

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