06 chev impala ss 5.3t engine

I had another interesting case study yesterday.
This car as listed in the subject was towed in and the customer complaint was vehicle just died and wont crank to restart. The first thing I did was a obd cat scan to reveal any codes and there were none. The next thing I did was look at the modules and their respective status and found all to be active with valid communications. The next step was a little odd as I was looking in the ECM data list while holding the key in the crank position the starter relay PID shows ‘on’ but the next line down shows crank request ‘no’ and I just thought that was odd because I could clearly see the active voltage coming from the ignition switch to the relay thus verification that there is no malfunction in the ignition switch or the crank driver inside the ECM.
The next step was just a simple bypass test at the ‘s’ wire at the starter with the ignition on and the starter cranked but also the car starts.
While I was down at the starter I found some evidence that the system was altered for some reason or another but I wasn’t sure for what but this clearly paints the firm belief that the problem almost always is where someone else has performed some type of work like alarms, remote starts etc..
Note: that I had already attempted to follow the flow of diagnostics supplied by the manufacturer but when the book doesn’t seem to fit the vehicles reactions you just know some aftermarket somebody hacked into something and caused chaos.
There was no choice but to further investigate at the ‘s’ terminal first just to confirm my hunch so I removed the air box which housed the ECM and TCM and there I found a cut in the ‘s’ terminal leading along the fender to the cockpit and under the hush panel I found a small pager looking module that says ‘Loan+’ on it..
I clipped the wires and restored the ‘s’ terminal under the hood and the vehicles fires up as normal.
This loan plus device with further investigation was installed by western bank to secure their asset and track the asset through global positioning with a disablement function that can be utilized buy a test message through a mobile phone.
Interestingly enough I called their number after the google search (and some unpleasantly wait time) the vehicle is not up for recovery and the module must be malfunctioning.
What was later found out is the vehicle is paid for and no one bothered to remove the device or at least notify the user that there is a third party low budget device that will probably fail due to its design shortly after the term of the loan is paid.
What is interesting is that this device can be tracked with a smart phone and can feedback a list of information hosted by the body control module.
I will let you know if the bank pays for my labor to diagnose and repair the cause of this problem.