Please be specific so I do not misunderstand you. You changed the retractable pedals or they do not work?
The first thing to look at is whether the tail lights flash when you try to activate the power gate. If they flash, the module is getting the "open" signal from the TIPM, "Totally Integrated Power Module" next to the battery. Then it becomes an issue of why the lift gate module is not following the command. One possibility is the transmission range switch is mis-adjusted. It can be off just enough to inhibit opening but not interfere with normal starter operation.
A totally different symptom is the gate pops to unlock, but it does not lift open. It immediately closes and re-locks. That is usually a simple matter of readjusting the striker inward to insure it breaks the electrical contact when the gate and latch move rearward when it pops.
Beyond that you need the scanner to see if the gate module is being recognized on the data buss and to view the status of the inputs. It will also tell if there are any diagnostic fault codes stored. Those can direct you to the circuit that needs further diagnosis. For example, there is a switch in the latch assembly to tell the computer the state the latch is in. A wire to it could be broken between the gate's hinges. Without a scanner and the fault codes it can show, you could be chasing wires and testing circuits for days, and the cause still might not be revealed. The mis-adjusted striker is a perfect example. Everything will test fine electrically so you will move on and never see the problem the computer is seeing.
Wednesday, July 27th, 2016 AT 6:50 PM