Code P1762

P1762 - Gov Press Sen Offset Volts Too Low or high

The common mistake is diagnostic fault codes never say to replace parts or that one is bad. Your observation that weather is involved is a perfect example. When a part is referenced in a fault code, it is actually the cause of that code only about half of the time. This code is usually solved by replacing the solenoid or the pressure sensor, but neither of those have any idea if it is wet outside. The better suspect in this case is corrosion between multiple terminals in an electrical connector due to moisture infiltration. That corrosion can become electrically-conductive when it gets wet, and that can affect the readings the computer sees.

Don't worry about which connector. If corrosion is the issue, you wouldn't want to overlook some of them.

The place I would start is by inspecting every terminal to be sure they're clean and shiny. A common cause of frustration is a very light film of corrosion that is temporarily overcome by the scratching action of simply unplugging a connector, then reconnecting it. That can bite through the corrosion and make the symptoms disappear for a few weeks or months.

Another thing to consider is a stretched terminal that doesn't make solid contact with its mate. That can be caused or aggravated by vigorous cleaning. Try to stick a thin pick in alongside the outside of the female terminal to squish it smaller.

If the scratching action of removing the plug makes the problem go away, it may require further attention to be a permanent fix, but if the symptoms don't show up the next time you drive in wet weather, at least you will have further eliminated the parts as the cause of the problem.

Let us know what happens. We would love the feedback.