[Maafeu]

Hey guys,

I decided to take on a fairly large challenge in removing all my harnesses from my base model 2013 FR-S auto transmission and install that of the BRZ limited edition (2013 automatic transmission). And I'm now having an issue with the engine starting. The BRZ donor car suffered a water lodged engine, however that engine harness wasn't used and neither was the engine.

I've done a bit of research with looking at the behaviours the car recognizing my "new" keyfob when entering the car, and it does recognize its presence.

Before I drive into this deeper I'll give you a quick rundown as to what I've done. All harnesses in the car were replaced, all except for the engine harness as that was the same one used for both models. The fusebox harness, both flooring harnesses the trunk harness, both door harnesses and door handles and roof harness were all replaced from the same donor car. The dash harness was from a later model BRZ, however all connections line up. I've also brought over the steering pillar that contains the box for the key fob. I've also brought over the ID CODE BOX from the donor car On top of that I've added all the key sensors (4 of them) from the donor car, I've brought all the computers from the donor car and installed them, I will need to roll back to mine on a few to have my vin number recognized but I'll take care of that later. All the wires have been connected to the new equipment with no ends unconnected.

The outcome is that I've been able to unlock and lock the car with the "new" keyfob, I've been able to put the car into accessory mode from the push button and have the windows go down and up, the trunk opens with the button push and the center console all lights up. Even the instrument panel lights up and the goes through the checks. The green key icon shows up when trying to start the car just that the engine doesnt crank

Two things I've noticed happen, when I enter the car with the fob and close the door, the signal indicators double flash, and there a long beep that follows from the car that eventually goes away (pretty sure that's not normal). The next thing is when I press the start button, the instrument cluster lights up and one icon that doesn't go away is the Power Steering light, not sure If that's just the steering position that eventually will go away after it's recalibrated when I'm driving again.

In reviewing the wire assembly the only piece that was on the FRS that's no longer connected is the fuel pump relay that is located in the passengers side front bumper area, however nowhere on the harness that is meant to be connected again, and there is a new added box in the glove box area that I believe replaces that function.

So this leads me to believe that the issue is either a security resync issue, or a blown fuse. I'm going to set up my techstream tonight and see if the car spits out any codes, but if anybody could shed some light on this in the meantime that would be amazing.

Thanks in advance!