A/C controller failure can cause complete engine failure.

[dewpt39]

It's been identified before but wanted to bring it up again for any that may have this problem. The change under the display thing again. I was using the shelf under the display as a convenience tray. Had a penny up there and it fell in behind the gap between the display and tray and into the A/C controller. Symptoms were all the TCS, brake, etc. lights lit up on the right side gauge, the gas gauge went to E with the empty light on, no codes on the reader. System did not show turn signals inside but did work outside. Car would crank but wouldn't start. It did damage a cell in the battery. Replaced battery with no luck.

Got on here and seen several instances of coins falling into the A/C controller and caused similar symptoms. No spark, no fuel, nothing. I read all the electrical functions and all fuses were good. So I took the controller out and replaced with one from the "yard" and tada.....

The question I have is why does the A/C controller have this effect on the car's operation? Also, there was a small piece of black foam that was put in that gap that had fallen out and was laying in the bottom behind the console. So if that was the fix, it wasn't a good one. I have put black tape over the gap. Not pretty but better safe. Also put a pipe screen over the hole and taped it on four sides of the breather hole.

The Nissan dealership was not helpful and suggested bringing it in for service. I know business is needed to pay the bills but this problem has been so prevalent and symptoms so alike that it should be known at all service shops that works on the cars. I was persistent enough to look on these forums and find others having the same experience. For the cost of $23, I was able to fix it. It took a lot of time and unnecessary troubleshooting that could have cost $thousands if taken to the dealer. Hope this helps others that may have this issue.